In Go 1.27 we've updated crypto/x509/pkix to avoid hex-encoding
attribute values that are string-typed. However, in TestBundle() we
assert the parsed certificate subject CN matches expected and now the
parsed value differs based on Go version.
This commit introduces some small helpers that on Go 1.25/1.26 replicate
the Go 1.27 behavior, decoding hex-encoded attribute values before
making the comparison.
In this way the test continues to pass without losing any coverage, or
introducing duplicated per-version bundles. In the future when only Go
1.27+ are supported we can revert this extra machinery.
Change-Id: I66bf6439e421169c0f9c750f88116b73ec5188fe
Reviewed-on: https://go-review.googlesource.com/c/crypto/+/775760
Reviewed-by: Roland Shoemaker <roland@golang.org>
LUCI-TryBot-Result: golang-scoped@luci-project-accounts.iam.gserviceaccount.com <golang-scoped@luci-project-accounts.iam.gserviceaccount.com>
Reviewed-by: Dmitri Shuralyov <dmitshur@google.com>
Auto-Submit: Daniel McCarney <daniel@binaryparadox.net>
Previously, pickSignatureAlgorithm constructed the list of candidate
algorithms by iterating over the static list returned by
algorithmsForKeyFormat. This caused the Signer's preference order
to be ignored in favor of the library's default internal order.
This change inverts the filtering logic to iterate over the signer's
supported algorithms first. This ensures that if a MultiAlgorithmSigner
explicitly prefers a specific algorithm (e.g., rsa-sha2-512 over
rsa-sha2-256), that preference is preserved and respected during the
handshake negotiation.
Fixesgolang/go#78248
Change-Id: I48a0aac720be7f973963342b82047ce32fc96699
Reviewed-on: https://go-review.googlesource.com/c/crypto/+/746020
Reviewed-by: Lonny Wong <lonnywang.cn@gmail.com>
Reviewed-by: Dmitri Shuralyov <dmitshur@google.com>
Auto-Submit: Nicola Murino <nicola.murino@gmail.com>
LUCI-TryBot-Result: Go LUCI <golang-scoped@luci-project-accounts.iam.gserviceaccount.com>
Reviewed-by: Filippo Valsorda <filippo@golang.org>
Reviewed-by: Carlos Amedee <carlos@golang.org>
Providing 0 as argument for r or p results in a panic:
panic: runtime error: integer divide by zero
Providing negative values for r or p returns a misleading error:
scrypt: parameters are too large
This change avoids the panic and introduces a new error
that is returned when r or p are <= 0:
scrypt: parameters must be > 0
Change-Id: I68987b27d1eedd66644d2ec9436cba364fc1d46d
Reviewed-on: https://go-review.googlesource.com/c/crypto/+/731780
Reviewed-by: Michael Pratt <mpratt@google.com>
Reviewed-by: Roland Shoemaker <roland@golang.org>
LUCI-TryBot-Result: Go LUCI <golang-scoped@luci-project-accounts.iam.gserviceaccount.com>
Reviewed-by: Filippo Valsorda <filippo@golang.org>
Auto-Submit: Roland Shoemaker <roland@golang.org>
Previously, an attacker could specify an integer up to 0xFFFFFFFF
that would directly allocate memory despite the observability of
the rest of the payload. This change places a hard cap on the
amount of mechanisms that can be specified and encoded in the
payload. Additionally, it performs a small sanity check to deny
payloads whose stated size is contradictory to the observed payload.
Thank you to Jakub Ciolek for reporting this issue.
Fixes CVE-2025-58181
Fixesgolang/go#76363
Change-Id: I0307ab3e906a3f2ae763b5f9f0310f7073f84485
Reviewed-on: https://go-review.googlesource.com/c/crypto/+/721961
Auto-Submit: Roland Shoemaker <roland@golang.org>
Reviewed-by: Damien Neil <dneil@google.com>
LUCI-TryBot-Result: Go LUCI <golang-scoped@luci-project-accounts.iam.gserviceaccount.com>
crypto/sha3 was introduced in Go 1.24, which is now the minimum Go
version of this module.
Made the hashes go:fix inline wrappers, since the new types can be used
as hash.Hash directly.
The SHAKE instances need a wrapper for the methods we dropped from
crypto.XOF, so no go:fix inline there.
Kept the generic implementation for the legacy Keccak hashes we did not
bring to the standard library. We need to keep them working, but they
don't need to be fast.
Fixesgolang/go#73681
Updates golang/go#65269
Change-Id: I6a6a69648b6353b153c70a2cec84864e64dcd61b
Reviewed-on: https://go-review.googlesource.com/c/crypto/+/710115
LUCI-TryBot-Result: Go LUCI <golang-scoped@luci-project-accounts.iam.gserviceaccount.com>
Auto-Submit: Filippo Valsorda <filippo@golang.org>
Reviewed-by: Daniel McCarney <daniel@binaryparadox.net>
Reviewed-by: David Chase <drchase@google.com>
Reviewed-by: Roland Shoemaker <roland@golang.org>
The Go 1.25.2 release made net/url stricter about parsing bracketed IPv6
hostnames, and is rejecting some test URLs used in the autocert
TestHTTPHandlerDefaultFallback test with an error about the
colon-separated fields requiring at least one hex digit.
This commit replaces the invalid `xxxx` portion of some test URLS with
valid hex digits, fixing the test regression.
Change-Id: I84c192b1cd6daf53ef4199f7987437fd825f7041
Reviewed-on: https://go-review.googlesource.com/c/crypto/+/710155
Reviewed-by: Roland Shoemaker <roland@golang.org>
Auto-Submit: Daniel McCarney <daniel@binaryparadox.net>
Reviewed-by: Filippo Valsorda <filippo@golang.org>
Reviewed-by: Dmitri Shuralyov <dmitshur@google.com>
LUCI-TryBot-Result: Go LUCI <golang-scoped@luci-project-accounts.iam.gserviceaccount.com>
If client.WaitOrder or client.CreateOrderCert return an acme.OrderError
it's helpful to include the order's problem field (if available). This
will often have detailed information about why a particular order
became invalid that's invaluable for debugging (e.g. a challenge
response was incorrect, a name couldn't be resolved, etc).
While it's possible for a consumer to poll the order themselves as part
of handling the order to extract a fresh Order.Error field value, it
would take an extra round-trip network request. Since we have the
underlying error in-hand when we produce the OrderError we might as well
include it directly.
Since this field is a structured object with a number of sub-fields the
OrderError.Error() function isn't updated to include the order problem
error in the String description. Interested callers should instead use
errors.Is to extract the problem information directly.
Resolvesgolang/go#74430
Cq-Include-Trybots: luci.golang.try:x_crypto-gotip-linux-amd64-longtest
Change-Id: I3158f064793bbfdc292dd6b5e1a6bfd7729bd980
Reviewed-on: https://go-review.googlesource.com/c/crypto/+/681037
Auto-Submit: Daniel McCarney <daniel@binaryparadox.net>
Reviewed-by: Roland Shoemaker <roland@golang.org>
Reviewed-by: Michael Pratt <mpratt@google.com>
Reviewed-by: Ian Stapleton Cordasco <graffatcolmingov@gmail.com>
LUCI-TryBot-Result: Go LUCI <golang-scoped@luci-project-accounts.iam.gserviceaccount.com>
When spawning the pebble and pebble-challtestserv processes redirect
stdout/stderr to bytes.Buffer instances and print their content at test
end as appropriate.
The stdout/stderr content for each process is printed if the test
failed, or if testing is being done in verbose mode. Otherwise the
output is swallowed.
This makes debugging test failures much easier as output from the
subprocesses from independent tests isn't intermingled.
Updates golang/go#74437
Cq-Include-Trybots: luci.golang.try:x_crypto-gotip-linux-amd64-longtest
Change-Id: Ia79a3609ce3522ef6248442de247554c39367162
Reviewed-on: https://go-review.googlesource.com/c/crypto/+/686935
Auto-Submit: Daniel McCarney <daniel@binaryparadox.net>
Reviewed-by: Roland Shoemaker <roland@golang.org>
Reviewed-by: Carlos Amedee <carlos@golang.org>
LUCI-TryBot-Result: Go LUCI <golang-scoped@luci-project-accounts.iam.gserviceaccount.com>
When creating a TLS-ALPN-01 challenge response certificate for an IP
address identifier we need to configure the template IPAddresses field,
not the DNSNames/Subject.CommonName.
Along the way we can do some small tidying:
* Updating the draft TLS-ALPN-01 reference to the finalized RFC
* Adding a reference to the IP address identifier ACME RFC
* Adding a mention of the form the challenge validation request's SNI
will take when verifying an IP address identifier
* Tidying the private tlsChallengeCert() function to take a single
identifier as arg since the only call-sites provide singular values
since the removal of the TLS-SNI-[01|02] challenge helpers.
This allows enabling an IP address identifier in the Pebble integration
tests that otherwise caused a validation failure for TLS-ALPN-01
challenge types because the IP address was used as a DNS SAN.
Updates golang/go#73914
Cq-Include-Trybots: luci.golang.try:x_crypto-gotip-linux-amd64-longtest
Change-Id: Ic671e41b585f424f821db65206c7ffcc6dd386a0
Reviewed-on: https://go-review.googlesource.com/c/crypto/+/677576
Reviewed-by: Ian Stapleton Cordasco <graffatcolmingov@gmail.com>
Auto-Submit: Daniel McCarney <daniel@binaryparadox.net>
Reviewed-by: Roland Shoemaker <roland@golang.org>
LUCI-TryBot-Result: Go LUCI <golang-scoped@luci-project-accounts.iam.gserviceaccount.com>
Reviewed-by: Dmitri Shuralyov <dmitshur@google.com>
This commit adds integration test coverage for a complete TLS-ALPN-01
and HTTP-01 based issuance flow.
For each tested challenge type we:
* Spin up a pebble/pebble-challtestsrv environment
* Spin up a small challenge response server
* Create an ACME account
* Create an order for multiple DNS type identifiers
* Provision challenge responses based on the challenge type under test
* Wait for the order to become ready for issuance
* Finalize the order, issuing a certificate
* Check the newly issued certificate chain validates with the Pebble
trust anchor, and that the certificate is valid for each of the names
from our initial order
These tests are skipped in short mode (Pebble has variable delays for
validation requests).
The Pebble source is fetched through the Go module proxy (unless
a local directory is specified to aid development), similar to how the
stdlib crypto packages fetch BoGo tooling.
More test coverage for various other parts of the protocol (key
rollover, account/authz deactivation, revocation, etc) can be added as
follow-up work now that the groundwork for integration testing is laid.
Fixesgolang/go#73914
Cq-Include-Trybots: luci.golang.try:x_crypto-gotip-linux-amd64-longtest
Change-Id: I4e79f4858f31ef290a0c91d345e15fbdc510e9ab
Reviewed-on: https://go-review.googlesource.com/c/crypto/+/677575
Reviewed-by: Roland Shoemaker <roland@golang.org>
Auto-Submit: Daniel McCarney <daniel@binaryparadox.net>
Reviewed-by: Ian Stapleton Cordasco <graffatcolmingov@gmail.com>
Reviewed-by: Dmitri Shuralyov <dmitshur@google.com>
LUCI-TryBot-Result: Go LUCI <golang-scoped@luci-project-accounts.iam.gserviceaccount.com>
Skip the key exchange test when using the system's ssh CLI if the
required KEX algorithm (e.g., mlkem768x25519-sha256) is not supported.
This is determined by running ssh -Q kex and checking for the presence
of the target algorithm.
Prevents false test failures in CI environments with older or limited
SSH implementations.
Cq-Include-Trybots: luci.golang.try:x_crypto-gotip-darwin-amd64-longtest,x_crypto-gotip-linux-amd64-longtest,x_crypto-gotip-windows-amd64-longtest
Change-Id: I3fac703ec70559e18b30d5fff88274335a7c3952
Reviewed-on: https://go-review.googlesource.com/c/crypto/+/679195
LUCI-TryBot-Result: Go LUCI <golang-scoped@luci-project-accounts.iam.gserviceaccount.com>
Reviewed-by: Dmitri Shuralyov <dmitshur@golang.org>
Reviewed-by: Dmitri Shuralyov <dmitshur@google.com>
Reviewed-by: Carlos Amedee <carlos@golang.org>
The TLSSNI01ChallengeCert and TLSSNI02ChallengeCert functions have been
marked deprecated since 2022. The package documentation indicates
pre-RFC 8555 functionality is retained for compilation success, but will
return errors. This commit makes these two deprecated functions match
that description.
No meaningful support for these draft standard challenge types exists
in the ACME ecosystem, and they are insecure for use in shared hosting
environments.
Change-Id: I1c17980a0630092c70eb971b3453a0f115834be0
Reviewed-on: https://go-review.googlesource.com/c/crypto/+/676835
Auto-Submit: Daniel McCarney <daniel@binaryparadox.net>
LUCI-TryBot-Result: Go LUCI <golang-scoped@luci-project-accounts.iam.gserviceaccount.com>
Reviewed-by: Roland Shoemaker <roland@golang.org>
Reviewed-by: Michael Knyszek <mknyszek@google.com>
We add this support for the following reasons:
- We are planning to expose recommended (secure) vs. supported (works,
not necessarily recommended) algorithms. The DHGEX kex is currently
only exposed as a client-side kex. To simplify the calling convention
for this follow-on, we expose the server side too.
- Some clients are quite inflexible with reference to kex algorithms
choice, for example they offer:
diffie-hellman-group-exchange-sha256, diffie-hellman-group-exchange-sha1,
diffie-hellman-group14-sha1, diffie-hellman-group1-sha1
therefore DHGEX helps interoperability.
We do not recommend the DHGEX kex as a whole:
- the negotiation requires an extra round trip
- the server must generate parameters (slow) or hardcode them, which
defeats the security benefit over traditional DH.
In this implementation we hardcode sending Oakley Group 14, Oakley
Group 15 or Oakley Group 16 based on the requested max size.
Users that are concerned with security of classical DH kex should
migrate to kex based on EC or Ed25519.
Fixesgolang/go#54743
Change-Id: I127822e90efc36821af4aca679931f40a2023021
Reviewed-on: https://go-review.googlesource.com/c/crypto/+/532415
Reviewed-by: Michael Knyszek <mknyszek@google.com>
Auto-Submit: Nicola Murino <nicola.murino@gmail.com>
Reviewed-by: Filippo Valsorda <filippo@golang.org>
Reviewed-by: Han-Wen Nienhuys <hanwen@google.com>
Reviewed-by: Cherry Mui <cherryyz@google.com>
LUCI-TryBot-Result: Go LUCI <golang-scoped@luci-project-accounts.iam.gserviceaccount.com>
acme/autocert currently has ad-hoc logic to find a reasonable default
for a cache directory.
Since that logic was written (in 2017), new functions were added to the
os package to provide that functionality (in Go 1.13, 2019-09):
`os.UserCacheDir` and `os.UserHomeDir`.
This patch replaces the ad-hoc logic with a call to `os.UserCacheDir`.
The fallback to `/` is kept, since it may be relied upon in some
environments.
Change-Id: I3bf692ca670b87bf3d329e5d3684eee15ed374aa
Reviewed-on: https://go-review.googlesource.com/c/crypto/+/440195
Reviewed-by: Dmitri Shuralyov <dmitshur@google.com>
Reviewed-by: Roland Shoemaker <roland@golang.org>
Auto-Submit: Sean Liao <sean@liao.dev>
LUCI-TryBot-Result: Go LUCI <golang-scoped@luci-project-accounts.iam.gserviceaccount.com>
Reviewed-by: Sean Liao <sean@liao.dev>
I believe this fixes https://github.com/golang/go/issues/36126 .
The problem was that it was keeping only the first known key of each
type found.
If you have a server advertising multiple keys of the same type,
you might get a missmatch key error.
Per sshd(8) man page, it should allow reapeatable hosts with
different host keys, although it don't specify anything about
hosts being from different types:
"It is permissible (but not recommended) to have several lines or
different host keys for the same names. This will inevitably happen when
short forms of host names from different domains are put in the file. It
is possible that the files contain conflicting information;
authentication is accepted if valid information can be found from either
file."
So, this changes knownhosts behavior to accept any of the keys for a
given host, regardless of type.
Fixes#36126
Change-Id: I3450ff954259a403f2471082d013a5f79def0e16
GitHub-Last-Rev: 361bd2bcd20348956aaf114ef159a5350397eaf4
GitHub-Pull-Request: golang/crypto#254
Reviewed-on: https://go-review.googlesource.com/c/crypto/+/478535
Reviewed-by: Junyang Shao <shaojunyang@google.com>
LUCI-TryBot-Result: Go LUCI <golang-scoped@luci-project-accounts.iam.gserviceaccount.com>
Reviewed-by: Nicola Murino <nicola.murino@gmail.com>
Reviewed-by: Michael Pratt <mpratt@google.com>
Auto-Submit: Nicola Murino <nicola.murino@gmail.com>
In the SSH protocol, clients and servers execute the key exchange to
generate one-time session keys used for encryption and authentication.
The key exchange is performed initially after the connection is
established and then periodically after a configurable amount of data.
While a key exchange is in progress, we add the received packets to an
internal queue until we receive SSH_MSG_KEXINIT from the other side.
This can result in high memory usage if the other party is slow to
respond to the SSH_MSG_KEXINIT packet, or memory exhaustion if a
malicious client never responds to an SSH_MSG_KEXINIT packet during a
large file transfer.
We now limit the internal queue to 64 packets: this means 2MB with the
typical 32KB packet size.
When the internal queue is full we block further writes until the
pending key exchange is completed or there is a read or write error.
Thanks to Yuichi Watanabe for reporting this issue.
Change-Id: I1ce2214cc16e08b838d4bc346c74c72addafaeec
Reviewed-on: https://go-review.googlesource.com/c/crypto/+/652135
Reviewed-by: Neal Patel <nealpatel@google.com>
Auto-Submit: Gopher Robot <gobot@golang.org>
Reviewed-by: Roland Shoemaker <roland@golang.org>
LUCI-TryBot-Result: Go LUCI <golang-scoped@luci-project-accounts.iam.gserviceaccount.com>
Users of the the ssh package seem to extremely commonly misuse the
PublicKeyCallback API, assuming that the key passed in the last call
before a connection is established is the key used for authentication.
Some users then make authorization decisions based on this key. This
property is not documented, and may not be correct, due to the caching
behavior of the package, resulting in users making incorrect
authorization decisions about the connection.
This change makes the cache a one entry FIFO cache, making the assumed
property, that the last call to PublicKeyCallback represents the key
actually used for authentication, actually hold.
Thanks to Damien Tournoud, Patrick Dawkins, Vince Parker, and
Jules Duvivier from the Platform.sh / Upsun engineering team
for reporting this issue.
Fixesgolang/go#70779
Fixes CVE-2024-45337
Change-Id: Ife7c7b4045d8b6bcd7e3a417bdfae370c709797f
Reviewed-on: https://go-review.googlesource.com/c/crypto/+/635315
Reviewed-by: Roland Shoemaker <roland@golang.org>
Auto-Submit: Gopher Robot <gobot@golang.org>
Reviewed-by: Damien Neil <dneil@google.com>
Reviewed-by: Nicola Murino <nicola.murino@gmail.com>
LUCI-TryBot-Result: Go LUCI <golang-scoped@luci-project-accounts.iam.gserviceaccount.com>
Seems the OpenSSH server running on windows fails keyboard-interactive
auth this way without sending any prompt to client. In such case the
golang ssh client should not retry keyboard-interactive auth when the
auth method is wrapped in a RetryableAuthMethod(). Rather the auth
method should be immediately marked as tried&failed and the client auth
process should move on to next available and acceptable auth method.
Fixesgolang/go#67855
Change-Id: I6c64ae58ff8325774e37af716601b112f8833d8f
GitHub-Last-Rev: 7fafc4d1c81284b31000d7d6ccadd934dda26d24
GitHub-Pull-Request: golang/crypto#297
Reviewed-on: https://go-review.googlesource.com/c/crypto/+/590956
LUCI-TryBot-Result: Go LUCI <golang-scoped@luci-project-accounts.iam.gserviceaccount.com>
Reviewed-by: Dmitri Shuralyov <dmitshur@google.com>
Reviewed-by: Ian Lance Taylor <iant@google.com>
Auto-Submit: Nicola Murino <nicola.murino@gmail.com>
Reviewed-by: Nicola Murino <nicola.murino@gmail.com>
This implementation utilizes the same registers found in the reference
implementation, aiming to produce a minimal semantic diff between the
Avo-generated output and the original hand-written assembly.
To verify the Avo implementation, the reference and Avo-generated
assembly files are fed to `go tool asm`, capturing the debug output into
corresponding temp files. The debug output contains supplementary
metadata (line numbers, instruction offsets, and source file references)
that must be removed in order to obtain a semantic diff of the two
files. This is accomplished via a small utility script written in awk.
Commands used to verify Avo output:
GOROOT=$(go env GOROOT)
ASM_PATH="internal/poly1305/sum_amd64.s"
REFERENCE="b2d3a6a4b4d36521cd7f653879cf6981e7c5c340"
go tool asm -o /dev/null -I "$GOROOT"/src/runtime -debug \
<(git cat-file -p "$REFERENCE:$ASM_PATH") \
> /tmp/reference.s
go tool asm -o /dev/null -I "$GOROOT"/src/runtime -debug \
"$ASM_PATH" \
> /tmp/avo.s
normalize(){
awk '{
$1=$2=$3="";
print substr($0,4)
}'
}
diff <(normalize < /tmp/reference.s) <(normalize < /tmp/avo.s)
Change-Id: I80212c95d1b05335d7f6b73a3030b6f812f6105b
Reviewed-on: https://go-review.googlesource.com/c/crypto/+/600035
Reviewed-by: Roland Shoemaker <roland@golang.org>
Reviewed-by: Filippo Valsorda <filippo@golang.org>
Reviewed-by: Dmitri Shuralyov <dmitshur@google.com>
LUCI-TryBot-Result: Go LUCI <golang-scoped@luci-project-accounts.iam.gserviceaccount.com>
This implementation utilizes the same registers found in the reference
implementation, aiming to produce a minimal semantic diff between the
Avo-generated output and the original hand-written assembly.
To verify the Avo implementation, the reference and Avo-generated
assembly files are fed to `go tool asm`, capturing the debug output into
corresponding temp files. The debug output contains supplementary
metadata (line numbers, instruction offsets, and source file references)
that must be removed in order to obtain a semantic diff of the two
files. This is accomplished via a small utility script written in awk.
Parameter metadata not found in the reference assembly file has been
added, leading to a diff on the lines where those symbols are
referenced.
Commands used to verify Avo output:
GOROOT=$(go env GOROOT)
ASM_PATH="chacha20poly1305/chacha20poly1305_amd64.s"
REFERENCE="b2d3a6a4b4d36521cd7f653879cf6981e7c5c340"
go tool asm -o /dev/null -I "$GOROOT"/src/runtime -debug \
<(git cat-file -p "$REFERENCE:$ASM_PATH") \
> /tmp/reference.s
go tool asm -o /dev/null -I "$GOROOT"/src/runtime -debug \
"$ASM_PATH" \
> /tmp/avo.s
normalize(){
awk '{
$1=$2=$3="";
print substr($0,4)
}'
}
diff <(normalize < /tmp/reference.s) <(normalize < /tmp/avo.s)
155,157c155,157
< MOVQ dst(FP), DI
< MOVQ key+24(FP), R8
< MOVQ src+48(FP), SI
---
> MOVQ dst_base(FP), DI
> MOVQ key_base+24(FP), R8
> MOVQ src_base+48(FP), SI
159c159
< MOVQ ad+72(FP), CX
---
> MOVQ ad_base+72(FP), CX
4684,4686c4684,4686
< MOVQ dst(FP), DI
< MOVQ key+24(FP), R8
< MOVQ src+48(FP), SI
---
> MOVQ dst_base(FP), DI
> MOVQ key_base+24(FP), R8
> MOVQ src_base+48(FP), SI
4688c4688
< MOVQ ad+72(FP), CX
---
> MOVQ ad_base+72(FP), CX
Change-Id: Ia3a8e70b7440944ee739499c41ddceb70e054ef9
Reviewed-on: https://go-review.googlesource.com/c/crypto/+/601442
Reviewed-by: Filippo Valsorda <filippo@golang.org>
LUCI-TryBot-Result: Go LUCI <golang-scoped@luci-project-accounts.iam.gserviceaccount.com>
Reviewed-by: Roland Shoemaker <roland@golang.org>
Reviewed-by: Dmitri Shuralyov <dmitshur@google.com>
This implementation utilizes the same registers found in the reference
implementation, aiming to produce a minimal semantic diff between the
Avo-generated output and the original hand-written assembly.
To verify the Avo implementation, the reference and Avo-generated
assembly files are fed to `go tool asm`, capturing the debug output into
corresponding temp files. The debug output contains supplementary
metadata (line numbers, instruction offsets, and source file references)
that must be removed in order to obtain a semantic diff of the two
files. This is accomplished via a small utility script written in awk.
Commands used to verify Avo output:
GOROOT=$(go env GOROOT)
REFERENCE="b2d3a6a4b4d36521cd7f653879cf6981e7c5c340"
go tool asm -o /dev/null -I "$GOROOT"/src/runtime -debug \
<(git cat-file -p "$REFERENCE":salsa20/salsa/salsa20_amd64.s) \
> /tmp/reference.s
go tool asm -o /dev/null -I "$GOROOT"/src/runtime -debug \
salsa20/salsa/salsa20_amd64.s \
> /tmp/avo.s
normalize(){
awk '{
$1=$2=$3="";
print substr($0,4)
}'
}
diff <(normalize < /tmp/reference.s) <(normalize < /tmp/avo.s)
Change-Id: Ica0bb06f8b074ad566a979d33ddc81d8a38491b1
Reviewed-on: https://go-review.googlesource.com/c/crypto/+/601217
LUCI-TryBot-Result: Go LUCI <golang-scoped@luci-project-accounts.iam.gserviceaccount.com>
Reviewed-by: Filippo Valsorda <filippo@golang.org>
Reviewed-by: Roland Shoemaker <roland@golang.org>
Reviewed-by: Dmitri Shuralyov <dmitshur@google.com>
This implementation utilizes the same registers found in the reference
implementation, aiming to produce a minimal semantic diff between the
Avo-generated output and the original hand-written assembly.
To verify the Avo implementation, the reference and Avo-generated
assembly files are fed to `go tool asm`, capturing the debug output into
corresponding temp files. The debug output contains supplementary
metadata (line numbers, instruction offsets, and source file references)
that must be removed in order to obtain a semantic diff of the two
files. This is accomplished via a small utility script written in awk.
Commands used to verify Avo output:
GOROOT=$(go env GOROOT)
ASM_PATH="blake2b/blake2b_amd64.s"
REFERENCE="b2d3a6a4b4d36521cd7f653879cf6981e7c5c340"
go tool asm -o /dev/null -I "$GOROOT"/src/runtime -debug \
<(git cat-file -p "$REFERENCE:$ASM_PATH") \
> /tmp/reference.s
go tool asm -o /dev/null -I "$GOROOT"/src/runtime -debug \
"$ASM_PATH" \
> /tmp/avo.s
normalize(){
awk '{
$1=$2=$3="";
print substr($0,4)
}'
}
diff <(normalize < /tmp/reference.s) <(normalize < /tmp/avo.s)
Change-Id: I6dd59fb0b0365674aa5e43b69a57ea60fbcc4ba1
Reviewed-on: https://go-review.googlesource.com/c/crypto/+/600456
Reviewed-by: Dmitri Shuralyov <dmitshur@google.com>
Reviewed-by: Roland Shoemaker <roland@golang.org>
LUCI-TryBot-Result: Go LUCI <golang-scoped@luci-project-accounts.iam.gserviceaccount.com>
Reviewed-by: Filippo Valsorda <filippo@golang.org>
This implementation utilizes the same registers found in the reference
implementation, aiming to produce a minimal semantic diff between the
Avo-generated output and the original hand-written assembly.
To verify the Avo implementation, the reference and Avo-generated
assembly files are fed to `go tool asm`, capturing the debug output into
corresponding temp files. The debug output contains supplementary
metadata (line numbers, instruction offsets, and source file references)
that must be removed in order to obtain a semantic diff of the two
files. This is accomplished via a small utility script written in awk.
Commands used to verify Avo output:
GOROOT=$(go env GOROOT)
ASM_PATH="blake2b/blake2bAVX2_amd64.s"
REFERENCE="b2d3a6a4b4d36521cd7f653879cf6981e7c5c340"
go tool asm -o /dev/null -I "$GOROOT"/src/runtime -debug \
<(git cat-file -p "$REFERENCE:$ASM_PATH") \
> /tmp/reference.s
go tool asm -o /dev/null -I "$GOROOT"/src/runtime -debug \
"$ASM_PATH" \
> /tmp/avo.s
normalize(){
awk '{
$1=$2=$3="";
print substr($0,4)
}'
}
diff <(normalize < /tmp/reference.s) <(normalize < /tmp/avo.s)
Change-Id: Ia2af1b82c871e26b89bd9a2d9fb187cc49e18341
Reviewed-on: https://go-review.googlesource.com/c/crypto/+/600836
Reviewed-by: Filippo Valsorda <filippo@golang.org>
Reviewed-by: Roland Shoemaker <roland@golang.org>
Reviewed-by: Dmitri Shuralyov <dmitshur@google.com>
LUCI-TryBot-Result: Go LUCI <golang-scoped@luci-project-accounts.iam.gserviceaccount.com>
This implementation utilizes the same registers found in the reference
implementation, aiming to produce a minimal semantic diff between the
Avo-generated output and the original hand-written assembly.
To verify the Avo implementation, the reference and Avo-generated
assembly files are fed to `go tool asm`, capturing the debug output into
corresponding temp files. The debug output contains supplementary
metadata (line numbers, instruction offsets, and source file references)
that must be removed in order to obtain a semantic diff of the two
files. This is accomplished via a small utility script written in awk.
Commands used to verify Avo output:
GOROOT=$(go env GOROOT)
ASM_PATH="blake2s/blake2s_amd64.s"
REFERENCE="b2d3a6a4b4d36521cd7f653879cf6981e7c5c340"
go tool asm -o /dev/null -I "$GOROOT"/src/runtime -debug \
<(git cat-file -p "$REFERENCE:$ASM_PATH") \
> /tmp/reference.s
go tool asm -o /dev/null -I "$GOROOT"/src/runtime -debug \
"$ASM_PATH" \
> /tmp/avo.s
normalize(){
awk '{
$1=$2=$3="";
print substr($0,4)
}'
}
diff <(normalize < /tmp/reference.s) <(normalize < /tmp/avo.s)
Change-Id: Ica8bf9f0b42dc93714aa54e783fa74ed19e6b9f4
Reviewed-on: https://go-review.googlesource.com/c/crypto/+/601216
Reviewed-by: Roland Shoemaker <roland@golang.org>
LUCI-TryBot-Result: Go LUCI <golang-scoped@luci-project-accounts.iam.gserviceaccount.com>
Reviewed-by: Dmitri Shuralyov <dmitshur@google.com>
Reviewed-by: Filippo Valsorda <filippo@golang.org>
This implementation utilizes the same registers found in the reference
implementation, aiming to produce a minimal semantic diff between the
Avo-generated output and the original hand-written assembly.
To verify the Avo implementation, the reference and Avo-generated
assembly files are fed to `go tool asm`, capturing the debug output into
corresponding temp files. The debug output contains supplementary
metadata (line numbers, instruction offsets, and source file references)
that must be removed in order to obtain a semantic diff of the two
files. This is accomplished via a small utility script written in awk.
Commands used to verify Avo output:
GOROOT=$(go env GOROOT)
ASM_PATH="argon2/blamka_amd64.s"
REFERENCE="b2d3a6a4b4d36521cd7f653879cf6981e7c5c340"
go tool asm -o /dev/null -I "$GOROOT"/src/runtime -debug \
<(git cat-file -p "$REFERENCE:$ASM_PATH") \
> /tmp/reference.s
go tool asm -o /dev/null -I "$GOROOT"/src/runtime -debug \
"$ASM_PATH" \
> /tmp/avo.s
normalize(){
awk '{
$1=$2=$3="";
print substr($0,4)
}'
}
diff <(normalize < /tmp/reference.s) <(normalize < /tmp/avo.s)
Change-Id: I3567eb80ef80dff248225f17470122c0a4e6951e
Reviewed-on: https://go-review.googlesource.com/c/crypto/+/600315
Reviewed-by: Filippo Valsorda <filippo@golang.org>
LUCI-TryBot-Result: Go LUCI <golang-scoped@luci-project-accounts.iam.gserviceaccount.com>
Reviewed-by: Dmitri Shuralyov <dmitshur@google.com>
Reviewed-by: Roland Shoemaker <roland@golang.org>
When adding a new key, if we already have a Signer with the same public
key, we now replace it with the new one instead of duplicating it.
Before this change we had this:
$ ssh-add -l
3072 SHA256:bsBRHC/xgiqBJdSuvSTNpJNLTISP/G356jNMCRYC5Es nicola@p1 (RSA)
3072 SHA256:bsBRHC/xgiqBJdSuvSTNpJNLTISP/G356jNMCRYC5Es nicola@p1 (RSA-CERT)
$ ssh-add /home/nicola/ssh_certs/id_rsa
Identity added: /home/nicola/ssh_certs/id_rsa (nicola@p1)
Certificate added: /home/nicola/ssh_certs/id_rsa-cert.pub (myid)
$ ssh-add -l
3072 SHA256:bsBRHC/xgiqBJdSuvSTNpJNLTISP/G356jNMCRYC5Es nicola@p1 (RSA)
3072 SHA256:bsBRHC/xgiqBJdSuvSTNpJNLTISP/G356jNMCRYC5Es nicola@p1 (RSA-CERT)
3072 SHA256:bsBRHC/xgiqBJdSuvSTNpJNLTISP/G356jNMCRYC5Es nicola@p1 (RSA)
3072 SHA256:bsBRHC/xgiqBJdSuvSTNpJNLTISP/G356jNMCRYC5Es nicola@p1 (RSA-CERT)
Change-Id: Iad1b1a6dc94f68f53f05d7d1172f0017839976fc
Reviewed-on: https://go-review.googlesource.com/c/crypto/+/602955
Reviewed-by: Filippo Valsorda <filippo@golang.org>
Auto-Submit: Nicola Murino <nicola.murino@gmail.com>
Reviewed-by: David Chase <drchase@google.com>
Reviewed-by: Michael Knyszek <mknyszek@google.com>
LUCI-TryBot-Result: Go LUCI <golang-scoped@luci-project-accounts.iam.gserviceaccount.com>
The original SSH RFC 4253 explicitly disallows padding. This applies to
ssh-rsa signatures.
The updated SSH RFC 8332 which defines the SHA2 RSA signature variants
explicitly calls out the existence of signers who produce short
signatures and specifies that verifiers may allow this behavior.
In practice, PuTTY 0.81 and prior versions, as well as SSH.NET prior to
2024.1.0 always generated short signatures. Furthermore, PuTTY is
embedded in other software like WinSCP and FileZilla, which are updated
on their own schedules as well. This leads to occasional unexplained
login errors, when using RSA keys.
OpenSSH server allows these short signatures for all RSA algorithms.
Fixesgolang/go#68286
Change-Id: Ia60ece21bf9c111c490fac0c066443ed5ff7dd29
Reviewed-on: https://go-review.googlesource.com/c/crypto/+/598534
Reviewed-by: Nicola Murino <nicola.murino@gmail.com>
Reviewed-by: Roland Shoemaker <roland@golang.org>
Reviewed-by: Dmitri Shuralyov <dmitshur@google.com>
Auto-Submit: Nicola Murino <nicola.murino@gmail.com>
LUCI-TryBot-Result: Go LUCI <golang-scoped@luci-project-accounts.iam.gserviceaccount.com>
This implementation utilizes the same registers found in the reference
implementation, aiming to produce a minimal semantic diff between the
Avo-generated output and the original hand-written assembly.
To verify the Avo implementation, the reference and Avo-generated
assembly files are fed to `go tool asm`, capturing the debug output into
corresponding temp files. The debug output contains supplementary
metadata (line numbers, instruction offsets, and source file references)
that must be removed in order to obtain a semantic diff of the two
files. This is accomplished via a small utility script written in awk.
Commands used to verify Avo output:
BASE="d66d9c31b4ae80d173d1187a9e40c188788dbdbc"
go tool asm -o /dev/null -debug \
<(git cat-file -p "$BASE":sha3/keccakf_amd64.s) \
> /tmp/reference.s
go tool asm -o /dev/null -debug \
sha3/keccakf_amd64.s \
> /tmp/avo.s
normalize(){
awk '{
$1=$2=$3="";
print substr($0,4)
}'
}
diff <(normalize < /tmp/reference.s) <(normalize < /tmp/avo.s)
Change-Id: I1c0ea516531355263b83d3b66a37df090e293cea
Reviewed-on: https://go-review.googlesource.com/c/crypto/+/594655
Reviewed-by: Cherry Mui <cherryyz@google.com>
Reviewed-by: Filippo Valsorda <filippo@golang.org>
Reviewed-by: Russell Webb <russell.webb@protonmail.com>
Reviewed-by: Roland Shoemaker <roland@golang.org>
LUCI-TryBot-Result: Go LUCI <golang-scoped@luci-project-accounts.iam.gserviceaccount.com>
Auto-Submit: Filippo Valsorda <filippo@golang.org>
on RHEL 9 OpenSSH does not support DSA keys and RSA keys with size less
than 2048 bits, furthermore signing with ssh-rsa (SHA-1 signatures) and
ssh-dss is not allowed, therefore:
1) replaced the 1024-bit RSA key used in the test with a new 2048-bit
one
2) removed DSA key from itegration tests
3) allowed signature errors using ssh-rsa in agent integration tests, we
also check SHA-2 variants that are not skipped
Fixesgolang/go#65581
Change-Id: I54bf997b61ef4d91d38eb624275737ba7291bb20
Reviewed-on: https://go-review.googlesource.com/c/crypto/+/562755
Reviewed-by: Roland Shoemaker <roland@golang.org>
Reviewed-by: David Chase <drchase@google.com>
Reviewed-by: Filippo Valsorda <filippo@golang.org>
Auto-Submit: Nicola Murino <nicola.murino@gmail.com>
LUCI-TryBot-Result: Go LUCI <golang-scoped@luci-project-accounts.iam.gserviceaccount.com>
We don't yet understand why these tests fail, but the Apple sshd seems
to have some non-trivial vendor patches, so it is plausibly a
platform-specific bug in the test. Let's skip that failure mode on the
whole platform until/unless someone has time to reproduce and
investigate the failure.
For golang/go#64959.
Cq-Include-Trybots: luci.golang.try:x_crypto-gotip-darwin-amd64-longtest,x_crypto-gotip-linux-amd64-longtest,x_crypto-gotip-windows-amd64-longtest
Change-Id: I9e43579469de3fe9329c093b5916bbed0edd3751
Reviewed-on: https://go-review.googlesource.com/c/crypto/+/554077
Reviewed-by: Dmitri Shuralyov <dmitshur@golang.org>
Reviewed-by: Dmitri Shuralyov <dmitshur@google.com>
Reviewed-by: Nicola Murino <nicola.murino@gmail.com>
LUCI-TryBot-Result: Go LUCI <golang-scoped@luci-project-accounts.iam.gserviceaccount.com>
Auto-Submit: Bryan Mills <bcmills@google.com>
Implement the "strict KEX" protocol changes, as described in section
1.9 of the OpenSSH PROTOCOL file (as of OpenSSH version 9.6/9.6p1).
Namely this makes the following changes:
* Both the server and the client add an additional algorithm to the
initial KEXINIT message, indicating support for the strict KEX mode.
* When one side of the connection sees the strict KEX extension
algorithm, the strict KEX mode is enabled for messages originating
from the other side of the connection. If the sequence number for
the side which requested the extension is not 1 (indicating that it
has already received non-KEXINIT packets), the connection is
terminated.
* When strict kex mode is enabled, unexpected messages during the
handshake are considered fatal. Additionally when a key change
occurs (on the receipt of the NEWKEYS message) the message sequence
numbers are reset.
Thanks to Fabian Bäumer, Marcus Brinkmann, and Jörg Schwenk from Ruhr
University Bochum for reporting this issue.
Fixes CVE-2023-48795
Fixesgolang/go#64784
Change-Id: I96b53afd2bd2fb94d2b6f2a46a5dacf325357604
Reviewed-on: https://go-review.googlesource.com/c/crypto/+/550715
Reviewed-by: Nicola Murino <nicola.murino@gmail.com>
Reviewed-by: Tatiana Bradley <tatianabradley@google.com>
TryBot-Result: Gopher Robot <gobot@golang.org>
Run-TryBot: Roland Shoemaker <roland@golang.org>
Reviewed-by: Damien Neil <dneil@google.com>
LUCI-TryBot-Result: Go LUCI <golang-scoped@luci-project-accounts.iam.gserviceaccount.com>
Sending a window adjustment after every read is unnecessarily chatty,
especially with a series of small reads like with TTY interactions.
Copy OpenSSH's logic for deferring these, which seemingly hasn't changed
since 2007. Note that since channelWindowSize and c.maxIncomingPayload
are currently constants here, the two checks could be combined into a
single check for c.myWindow < 2 MiB - 96 KiB (with the current values
of the constants).
Fixesgolang/go#57424.
Change-Id: Ifcef5be76fcc3f0b1a6dc396096bed9c50d64f21
Reviewed-on: https://go-review.googlesource.com/c/crypto/+/459915
Reviewed-by: Nicola Murino <nicola.murino@gmail.com>
Reviewed-by: Michael Knyszek <mknyszek@google.com>
Run-TryBot: Nicola Murino <nicola.murino@gmail.com>
Auto-Submit: Nicola Murino <nicola.murino@gmail.com>
Reviewed-by: Dmitri Shuralyov <dmitshur@google.com>
Commit-Queue: Nicola Murino <nicola.murino@gmail.com>
TryBot-Result: Gopher Robot <gobot@golang.org>
ReadOptionalASN1Boolean was completely broken, it would only work when
there were two BOOLEAN fields in a row, with the first being OPTIONAL
(which is itself invalid ASN.1 due to the ambiguity). This fixes it
to properly expect a BOOLEAN wrapped in a context-specific tag, as is
the case for all of the other ReadOptionalASN1* methods, and updates
its doc string.
This is a breaking change as it requires adding the tag field to
properly support context-specific tags. Given the method would
previously not work this seems like a reasonable breakage.
Fixesgolang/go#43019
Change-Id: I42398256216c59988e249c90bc7aa668f64df945
Reviewed-on: https://go-review.googlesource.com/c/crypto/+/274242
Reviewed-by: Filippo Valsorda <filippo@golang.org>
Reviewed-by: Damien Neil <dneil@google.com>
LUCI-TryBot-Result: Go LUCI <golang-scoped@luci-project-accounts.iam.gserviceaccount.com>
Auto-Submit: Roland Shoemaker <roland@golang.org>
The PSHUFB instruction is part of SSE which is only v2+ but it is being
used without the GOAMD64_v2 guard.
The ROL macros were copied from CL 516859 that adds internal/chacha8rand.
Fixesgolang/go#63871
Change-Id: I3c8ba75ff284cda4fc788885643246936e617b85
GitHub-Last-Rev: e235e8eae67f16b3a58817cfdff729693faf2665
GitHub-Pull-Request: golang/crypto#275
Reviewed-on: https://go-review.googlesource.com/c/crypto/+/538786
Reviewed-by: Keith Randall <khr@google.com>
Run-TryBot: Mauri de Souza Meneguzzo <mauri870@gmail.com>
TryBot-Result: Gopher Robot <gobot@golang.org>
Reviewed-by: Keith Randall <khr@golang.org>
Reviewed-by: Russ Cox <rsc@golang.org>
These tests try to ensure better compatibility of our server implementation
with the ssh CLI.
With these tests in place:
1) before merging CL 447757 we would have noticed that our server
implementation was broken with OpenSSH 8.8+
2) after merging CL 447757 we would have noticed that our server
implementation was broken with OpenSSH 7.2-7.7
The ssh CLI from $PATH is used by default, but can be overridden using
the SSH_CLI_PATH environment variable.
Change-Id: I93d64be41c7613132b0364afac8397f57c2dcbca
Reviewed-on: https://go-review.googlesource.com/c/crypto/+/506837
TryBot-Result: Gopher Robot <gobot@golang.org>
Reviewed-by: Benny Siegert <bsiegert@gmail.com>
Reviewed-by: Han-Wen Nienhuys <hanwen@google.com>
Run-TryBot: Nicola Murino <nicola.murino@gmail.com>
This is a follow-up to CL 317169, which dropped go1.12 compatibility,
and made the golang.org/x/crypto/ed25519 package an alias / wrapper for
crypto/ed25519 in stdlib.
This patch updates uses within this repository to use stdlib instead of
depending on the wrapper. With this patch applied, the only remaining
use of the wrapper is in ed25519_test, which appears to be in place to
verify compatibility of the wrapper itself.
Change-Id: I0195396102a75ae20bdd82ca8ab59855c0eb5cea
GitHub-Last-Rev: 24dbec563cbd84bc47bdc7736b0245fc83dd3353
GitHub-Pull-Request: golang/crypto#238
Reviewed-on: https://go-review.googlesource.com/c/crypto/+/448238
Reviewed-by: Bryan Mills <bcmills@google.com>
Run-TryBot: Nicola Murino <nicola.murino@gmail.com>
Reviewed-by: Nicola Murino <nicola.murino@gmail.com>
TryBot-Result: Gopher Robot <gobot@golang.org>
Reviewed-by: Joedian Reid <joedian@golang.org>
Reviewed-by: Roland Shoemaker <roland@golang.org>
Reviewed-by: Than McIntosh <thanm@google.com>
Package sha3 recommends the SHAKE functions for new uses, but this is
currently somewhat inconvenient because ShakeHash does not implement
hash.Hash. This is understandable, as SHAKE supports arbitrary-length
outputs whereas hash.Hash only supports fixed-length outputs. But
there's a natural fixed-length output to provide: the minimum output
that still provides SHAKE's full-strength generic security.
While here, tweak Sum so that its temporary buffer can be stack
allocated.
Also, tweak the panic message in Write so that the error text is more
readily understandable to Go programmers without needing to be
familiar with crypto jargon, and add a similar check in Sum.
Change-Id: Icf037d3990a71de5630f8825606614443f8c5245
Reviewed-on: https://go-review.googlesource.com/c/crypto/+/526937
LUCI-TryBot-Result: Go LUCI <golang-scoped@luci-project-accounts.iam.gserviceaccount.com>
Reviewed-by: Adam Langley <agl@google.com>
Auto-Submit: Matthew Dempsky <mdempsky@google.com>
Update golang.org/x dependencies to their latest tagged versions.
Once this CL is submitted, and post-submit testing succeeds on all
first-class ports across all supported Go versions, this repository
will be tagged with its next minor version.
Change-Id: Id40feba36dfc31c7033c91b952ec824a38e048ee
Reviewed-on: https://go-review.googlesource.com/c/crypto/+/515976
Auto-Submit: Gopher Robot <gobot@golang.org>
Reviewed-by: Dmitri Shuralyov <dmitshur@google.com>
Reviewed-by: Heschi Kreinick <heschi@google.com>
TryBot-Result: Gopher Robot <gobot@golang.org>
Run-TryBot: Gopher Robot <gobot@golang.org>
Tighter validation could cause backwards incompatibility issues, eg
configurations with valid and invalid MACs, KEXs, ciphers currently work
if a supported algorithm is negotiated and that's also the scenario of
removing support for an existing algorithm.
Fixesgolang/go#39397
Change-Id: If90253ba89e1d8f732cc1e1c3d24fe0a1e2dac71
Reviewed-on: https://go-review.googlesource.com/c/crypto/+/512175
Run-TryBot: Han-Wen Nienhuys <hanwen@google.com>
Reviewed-by: Filippo Valsorda <filippo@golang.org>
Reviewed-by: Han-Wen Nienhuys <hanwen@google.com>
Auto-Submit: Filippo Valsorda <filippo@golang.org>
Reviewed-by: David Chase <drchase@google.com>
TryBot-Result: Gopher Robot <gobot@golang.org>
The testdata for this package is around 8 MB and downloaded dynamically
via 'go mod download' from its canonical source rather than being copied
to this repository. We're moving towards disallowing all network use in
short test mode, including proxy.golang.org, so add a corresponding test
skip.
Needing to lookup a go test flag is unfortunate, but I don't know of a
less bad available option while the test does the download in TestMain.
On balance, it becomes viable to no longer disable the checksum database
since the test will only run on builders that permit internet use and so
sum.golang.org should just work.
Change-Id: Iaffe3899351da375928aaba114c4875f5438336b
Reviewed-on: https://go-review.googlesource.com/c/crypto/+/510695
Run-TryBot: Dmitri Shuralyov <dmitshur@google.com>
Auto-Submit: Dmitri Shuralyov <dmitshur@golang.org>
Reviewed-by: Heschi Kreinick <heschi@google.com>
Reviewed-by: Dmitri Shuralyov <dmitshur@google.com>
TryBot-Result: Gopher Robot <gobot@golang.org>
After adding support for rsa-sha2-256/512 on the server side some edge
cases started to arise with old clients:
1) public key authentication with gpg-agent < 2.2.6 fails because we
receive ssh-rsa as signature format and rsa-sha2-256 or rsa-sha2-512
as algorithm.
This is a bug in gpg-agent fixed in this commit:
https://github.com/gpg/gnupg/commit/80b775bdbb852aa4a80292c9357e5b1876110c00
2) certificate authentication fails with OpenSSH 7.2-7.7 because we
receive ssh-rsa-cert-v01@openssh.com as algorithm and rsa-sha2-256
or rsa-sha2-512 as signature format.
This patch is based on CL 412854 and has been tested with every version
of OpenSSH from 7.1 to 7.9 and OpenSSH 9.3.
Fixesgolang/go#53391
Change-Id: Id71f596f73d84efb5c76d6d5388432cccad3e3b1
Reviewed-on: https://go-review.googlesource.com/c/crypto/+/506835
Auto-Submit: Filippo Valsorda <filippo@golang.org>
Reviewed-by: Filippo Valsorda <filippo@golang.org>
Run-TryBot: Filippo Valsorda <filippo@golang.org>
Reviewed-by: Dmitri Shuralyov <dmitshur@google.com>
TryBot-Result: Gopher Robot <gobot@golang.org>
Reviewed-by: Roland Shoemaker <roland@golang.org>
Update golang.org/x dependencies to their latest tagged versions.
Once this CL is submitted, and post-submit testing succeeds on all
first-class ports across all supported Go versions, this repository
will be tagged with its next minor version.
Change-Id: Icede82501a3703fcaad524f6b91ff6e5452b4547
Reviewed-on: https://go-review.googlesource.com/c/crypto/+/507837
Reviewed-by: Heschi Kreinick <heschi@google.com>
Reviewed-by: Dmitri Shuralyov <dmitshur@google.com>
Run-TryBot: Gopher Robot <gobot@golang.org>
Auto-Submit: Gopher Robot <gobot@golang.org>
TryBot-Result: Gopher Robot <gobot@golang.org>
Package fallback has no API; its only purpose is to automatically call
x509.SetFallbackRoots with a set of fallback roots. That API was added
in Go 1.20, hence the go1.20 build constraint in fallback.go.
Add that constraint to bundle.go too, so that it fails to build rather
than quietly being a no-op in Go 1.19.
Also simplify Write(fmt.Sprintf()) into fmt.Fprintf while here.
Add a temporary workaround for go.dev/issue/52287.
It has no effect on the public API in this module.
For golang/go#57792.
For golang/go#52287.
Change-Id: I1fe13f7d54b07b0b031e8bae685cffd7a8160165
Reviewed-on: https://go-review.googlesource.com/c/crypto/+/505578
Auto-Submit: Dmitri Shuralyov <dmitshur@golang.org>
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This makes the automated update workflow simpler.
Also switch the ordering from human readable subject (which is not
necessarily unique), to the raw SPKI (which should always be unique).
This makes it somewhat harder to read to a human (since it'll appear a
little jumbled) but results in a stable sort.
Note this results in adding two new roots, which were added since we
last generated the bundle.
Change-Id: Id4d34bf9e98164e7b2fc4f06f9b46b63c0013d23
Reviewed-on: https://go-review.googlesource.com/c/crypto/+/504597
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This uses a copy of testenv.Command copied from the main repo, with
light edits to allow the testenv helpers to build with Go 1.19.
The testenv helper revealed an exec.Command leak in TestCertLogin, so
we also fix that leak and simplify server cleanup using
testing.T.Cleanup.
For golang/go#60099.
Fixesgolang/go#60343.
Change-Id: I7f79fcdb559498b987ee7689972ac53b83870aaf
Reviewed-on: https://go-review.googlesource.com/c/crypto/+/496935
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Update golang.org/x dependencies to their latest tagged versions.
Once this CL is submitted, and post-submit testing succeeds on all
first-class ports across all supported Go versions, this repository
will be tagged with its next minor version.
Change-Id: If19e251a79af033583e6968766b7a831741cebb7
Reviewed-on: https://go-review.googlesource.com/c/crypto/+/502518
Reviewed-by: Heschi Kreinick <heschi@google.com>
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Update golang.org/x dependencies to their latest tagged versions.
Once this CL is submitted, and post-submit testing succeeds on all
first-class ports across all supported Go versions, this repository
will be tagged with its next minor version.
Change-Id: I1eb2365549b72cbad23fa7c355f427c6ed75e450
Reviewed-on: https://go-review.googlesource.com/c/crypto/+/493575
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Reviewed-by: Dmitri Shuralyov <dmitshur@golang.org>
Reviewed-by: Heschi Kreinick <heschi@google.com>
Update golang.org/x dependencies to their latest tagged versions.
Once this CL is submitted, and post-submit testing succeeds on all
first-class ports across all supported Go versions, this repository
will be tagged with its next minor version.
Change-Id: I568d040817345a10881c31b8efc296f543e59113
Reviewed-on: https://go-review.googlesource.com/c/crypto/+/482855
Reviewed-by: Heschi Kreinick <heschi@google.com>
Auto-Submit: Gopher Robot <gobot@golang.org>
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Reviewed-by: Carlos Amedee <carlos@golang.org>
Update golang.org/x dependencies to their latest tagged versions.
Once this CL is submitted, and post-submit testing succeeds on all
first-class ports across all supported Go versions, this repository
will be tagged with its next minor version.
Change-Id: Ic0f0e8147eae1918612c3d1a1c1de14af0a43294
Reviewed-on: https://go-review.googlesource.com/c/crypto/+/473439
Reviewed-by: Dmitri Shuralyov <dmitshur@golang.org>
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Update golang.org/x dependencies to their latest tagged versions.
Once this CL is submitted, and post-submit testing succeeds on all
first-class ports across all supported Go versions, this repository
will be tagged with its next minor version.
Change-Id: If0ff32acaae5f6a717ed4d178a88f3346ecf1600
Reviewed-on: https://go-review.googlesource.com/c/crypto/+/466736
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Update golang.org/x dependencies to their latest tagged versions.
Once this CL is submitted, and post-submit testing succeeds on all
first-class ports across all supported Go versions, this repository
will be tagged with its next minor version.
Change-Id: I25128883772569c8f729b091b0efcbc4afcbea67
Reviewed-on: https://go-review.googlesource.com/c/crypto/+/460500
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By design, bcrypt only uses the first 72 bytes of a password when
generating a hash. Most implementations, including the reference one,
simply silently ignore any trailing input when provided passwords longer
than 72 bytes. This can cause confusion for users who expect the entire
password to be used to generate the hash.
In GenerateFromPassword, reject passwords longer than 72 bytes.
CompareHashAndPassword will still accept these passwords, since we
cannot break hashes that have already been stored.
Fixesgolang/go#36546
Change-Id: I039addd2a2961a7fa9d1e4a3e892a9e3c8bf4c9a
Reviewed-on: https://go-review.googlesource.com/c/crypto/+/450415
Reviewed-by: Damien Neil <dneil@google.com>
Reviewed-by: Jason McNeil <jmcneil@x2studios.com>
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This fixes a data race in the tests for x/crypto/ssh, which expects to
be able to examine a transport's read and write counters without
locking after closing it.
(Given the number of goroutines, channels, and mutexes used in this
package, I wouldn't be surprised if other concurrency bugs remain.
I would suggest simplifying the concurrency in this package, but I
don't intend to follow up on that myself at the moment.)
Fixesgolang/go#56957.
Change-Id: Ib1f1390b66707c66a3608e48f3f52483cff3c1f5
Reviewed-on: https://go-review.googlesource.com/c/crypto/+/456758
Reviewed-by: Roland Shoemaker <roland@golang.org>
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Auto-Submit: Bryan Mills <bcmills@google.com>
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Update golang.org/x dependencies to their latest tagged versions.
Once this CL is submitted, and post-submit testing succeeds on all
first-class ports across all supported Go versions, this repository
will be tagged with its next minor version.
Change-Id: If72a913d54ec282d75e270409971b148df4b417c
Reviewed-on: https://go-review.googlesource.com/c/crypto/+/455436
Reviewed-by: Carlos Amedee <carlos@golang.org>
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Update golang.org/x dependencies to their latest tagged versions.
Once this CL is submitted, and post-submit testing succeeds on all
first-class ports across all supported Go versions, this repository
will be tagged with its next minor version.
Change-Id: Ic7c0afcece0f3d2065c7a7e08f092c4344d90655
Reviewed-on: https://go-review.googlesource.com/c/crypto/+/448755
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Reviewed-by: Jenny Rakoczy <jenny@golang.org>
Update golang.org/x dependencies to their latest tagged versions.
Once this CL is submitted, and post-submit testing succeeds on all
first-class ports across all supported Go versions, this repository
will be tagged with its next minor version.
Change-Id: If840eea1cadc749ce55efd88eb7d9fc38472839e
Reviewed-on: https://go-review.googlesource.com/c/crypto/+/443996
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Block when creating the renewal timer, rather than doing it in a
goroutine. This fixes an issue where startRenew and stopRenew are called
very closely together, and due to lock ordering, stopRenew may be called
before startRenew, resulting in the appearance that the renewal timer
has been stopped before it has actually been created.
This is only an issue in tests, as that is the only place stopRenew is
actually used. In particular this issue manifests in TestGetCertiifcate
sub-tests, where a httptest server reuses a port across two of the
sub-tests. In this case, the renewal calls end up creating dirty state
for the subsequent test, which can cause confusing behavior (such as
attempting to register an account twice.)
Another solution to this problem would be introducing a bool, protected
by renewalMu, which indicates if renewal has been halted, and to check
it in startRenew to check if stopRenew has already been called, which
would allow us to continue calling startRenew in a goroutine and relying
on renewalMu locking for ordering. That said I don't see a particularly
strong reason to call startRenew concurrently, so this seems like the
simplest solution for now.
Fixesgolang/go#52494
Change-Id: I95420d3fd877572a0b9e408d2f8cd353f6a4e80e
Reviewed-on: https://go-review.googlesource.com/c/crypto/+/433016
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Alongside the existing ECDH tests, add tests that use the new
crypto/ecdh package. The test vectors include a number of private
that use non-standard sizes, which we reject, but aren't flagged,
so we need to skip them.
Change-Id: Iaaef225b0149a86833095f51748d230385d43bfe
Reviewed-on: https://go-review.googlesource.com/c/crypto/+/424274
Reviewed-by: Russ Cox <rsc@golang.org>
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In 2009, Google's open-source lawyers asked us to create the AUTHORS
file to define "The Go Authors", and the CONTRIBUTORS file was in
keeping with open source best practices of the time.
Re-reviewing our repos now in 2022, the open-source lawyers are
comfortable with source control history taking the place of the
AUTHORS file, and most open source projects no longer maintain
CONTRIBUTORS files.
To ease maintenance, remove AUTHORS and CONTRIBUTORS from all repos.
For golang/go#53961.
Change-Id: Ieb32933de4f234c77f0131490d4081b6c336820c
Reviewed-on: https://go-review.googlesource.com/c/crypto/+/419094
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Don't assume the path passed into the DirCache methods is absolute, and
clean it before further operating on it. Put and Delete are not attacker
controlled, but clean them anyway.
Fixes#53082
Fixes CVE-2022-30636
Change-Id: I755f525a737da60ccba07ebce4d41cc8faebfcca
Reviewed-on: https://go-review.googlesource.com/c/crypto/+/408694
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Currently discover is not called which results in a panic if just a key
is added to an ACME client and then deactivation is attempted.
This patch adds a discover call as well as missing unit tests for the
API.
Change-Id: I0719e5376eb2fccf62182e5f91e5b5eaa7bdd518
GitHub-Last-Rev: 501d7c6c1b75a3069dcad4254b4d4a0d2ccb02c8
GitHub-Pull-Request: golang/crypto#217
Reviewed-on: https://go-review.googlesource.com/c/crypto/+/406734
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Reviewed-by: Michael Knyszek <mknyszek@google.com>
Add support for AccountKeyRollover. API only returns an error since acme.Error
will contain appropriate KID lookup information. Due to the requirements
of double JWS encoding jwsEncodeJSON is also modified to support a
missing Nonce header and raw string embedding in the payload.
Fixesgolang/go#42516
Change-Id: I959660a1a39b2c469b959accd48fda519daf4eb3
GitHub-Last-Rev: 8e8cc5b094743262939c145f56d3a3b57a057d64
GitHub-Pull-Request: golang/crypto#215
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In the test server, rather than spawning a goroutine to validate
challenges, block on the validation before responding to the client.
This prevents a test race, where testing.T.Logf is called after the
test is completed.
While this has a slight behavioral difference to some production
ACME server implementations (although is behavior allowed in the spec),
the change has little material impact on what we are testing, since
previously the validation would happen so quickly that it would be
indistinguishable from the new blocking behavior (i.e. we would not be
sending multiple requests during polling previously.)
Fixesgolang/go#52170
Change-Id: I75e3b2da69ddc2302be25a99f1b1151ed0f4af9b
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In accordance to RFC8308, send ext-info-c only during the first key
exchange. Some server implementations such as OpenSSH 7 will send an
extInfoMsg message each time when ext-info-c is received. This results
in a closed connection, as our client does not expect this message while
handling the mux.
See https://bugzilla.mindrot.org/show_bug.cgi?id=2929 regarding the
behaviour of OpenSSH if it sees ext-info-c in later key exchanges.
Fixesgolang/go#51808
Change-Id: Id94f1ef73cec6147136246b0b6048b57db92660d
GitHub-Last-Rev: fcfe5ed37306136219854031abc809e0dc9b3124
GitHub-Pull-Request: golang/crypto#208
Reviewed-on: https://go-review.googlesource.com/c/crypto/+/394134
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CL 220037 had implemented support for host authentication using
rsa-sha2-256/512, but not client public key authentication. OpenSSH
disabled the SHA-1 based ssh-rsa by default in version 8.8 (after
pre-announcing it in versions 8.2, 8.3, 8.4, 8.5, 8.6, and 8.7) although
some distributions re-enable it. GitHub will start rejecting ssh-rsa for
keys uploaded before November 2, 2021 on March 15, 2022.
https://github.blog/2021-09-01-improving-git-protocol-security-github/
The server side already worked, as long as the client selected one of
the SHA-2 algorithms, because the signature flowed freely to Verify.
There was however nothing verifying that the signature algorithm matched
the advertised one. The comment suggested the check was being performed,
but it got lost back in CL 86190043. Not a security issue because the
signature had to pass the callback's Verify method regardless, and both
values were checked to be acceptable.
Tested with OpenSSH 8.8 configured with "PubkeyAcceptedKeyTypes -ssh-rsa"
and no application-side changes.
The Signers returned by ssh/agent (when backed by an agent client)
didn't actually implement AlgorithmSigner but ParameterizedSigner, an
interface defined in an earlier version of CL 123955.
Updates golang/go#49269Fixesgolang/go#39885
For golang/go#49952
Change-Id: I13b41db8041f1112a70f106c55f077b904b12cb8
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The server side implementation was not actually populating the
SSH_MSG_USERAUTH_INFO_REQUEST field with the
KeyboardInteractiveChallenge argument, although the client side was
deserializing it and passing it to the KeyboardInteractiveChallenge
callback.
Anyway, the first field of SSH_MSG_USERAUTH_INFO_REQUEST is "name", not
"user". Maybe the confusion was due to the first field of
SSH_MSG_USERAUTH_REQUEST being the user.
RFC 4256, Section 3.3, says this about it
One possibility is to use the name field (possibly
prefixed with the application's name) as the title of a dialog window
in which the prompt(s) are presented.
and examples include "CRYPTOCard Authentication", "Password
Authentication", and "Password Expired".
Co-authored-by: Kevin Wallace <kevin@pentabarf.net>
Change-Id: Ic6ec0dfea2122704603c44f42898a980689a15c9
Reviewed-on: https://go-review.googlesource.com/c/crypto/+/372234
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The server implementation looks at the HostKeys to advertise and
negotiate host key signature algorithms. A fundamental issue of the
Signer and AlgorithmSigner interfaces is that they don't expose the
supported signature algorithms, so really the server has to guess.
Currently, it would guess exclusively based on the PublicKey.Type,
regardless of whether the host key implemented AlgorithmSigner. This
means that a legacy Signer that only supports ssh-rsa still led the
server to negotiate rsa-sha2 algorithms. The server would then fail to
find a suitable host key to make the signature and crash.
This won't happen if only Signers from this package are used, but if a
custom Signer that doesn't support SignWithAlgorithm() but returns
"ssh-rsa" from PublicKey().Type() is used as a HostKey, the server is
vulnerable to DoS.
The only workable rules to determine what to advertise seems to be:
1. a pure Signer will always Sign with the PublicKey.Type
2. an AlgorithmSigner supports all algorithms associated with the
PublicKey.Type
Rule number two means that we can't add new supported algorithms in the
future, which is not great, but it's too late to fix that.
rsaSigner was breaking rule number one, and although it would have been
fine where it's used, I didn't want to break our own interface contract.
It's unclear why we had separate test key entries for rsa-sha2
algorithms, since we can use the ssh-rsa key for those. The only test
that used them, TestCertTypes, seemed broken: the init was actually
failing at making the corresponding signers rsaSigners, and indeed the
test for the SHA-256 signer expected and checked a SHA-512 signature.
Pending CVE
For golang/go#49952
Change-Id: Ie658eefcadd87906e63fc7faae8249376aa96c79
Reviewed-on: https://go-review.googlesource.com/c/crypto/+/392355
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RFC 8332, Section 2 sets up two overlapping namespaces: public key
formats and public key algorithms.
* The formats are what we currently have KeyAlgo constants for, and they
appear in PublicKey.Type.
* The algorithms are the set of both KeyAlgo and SigAlgo constants, and
they appear in Signature.Format (amongst other places).
This is incoherent, because that means Signature.Format can be both a
KeyAlgo (like KeyAlgoECDSA256) or a SigAlgo (like SigAlgoRSASHA2256).
One solution would be to duplicate all the KeyAlgo constants into the
SigAlgo namespace, but that would be confusing because applications are
currently using KeyAlgos where they'd be supposed to use the new
SigAlgos (while we can't deprecate the KeyAlgos because they are still
necessary for the PublicKey.Type namespace).
Instead, drop the separate namespaces, and use KeyAlgos throughout.
There are simply some KeyAlgos that can't be a PublicKey.Type.
Take the opportunity to fix the stuttering SHA22565/SHA2512 names. It's
totally ok to call those hashes SHA-256 and SHA-512 without the family
infix.
For golang/go#49952
Change-Id: Ia1fce3912a7e60aa70a88f75ed311be331fd19d5
Reviewed-on: https://go-review.googlesource.com/c/crypto/+/392354
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The previous code
if gex.g.Cmp(one) != 1 && gex.g.Cmp(pMinusOne) != -1 {
deobfuscates to the classic mistake
if g <= 1 && g >= p - 1 {
which is never true.
What the code actually intended to do is
if gex.g.Cmp(one) != 1 || gex.g.Cmp(pMinusOne) != -1 {
or more readably and consistently with the diffieHellman method
if gex.g.Cmp(one) <= 0 || gex.g.Cmp(pMinusOne) >= 0 {
Now, is this a security issue? The incorrect checks apply to g and k,
but not what we call Y and the spec calls f. RFC 4419 says:
Either side MUST NOT send or accept e or f values that are not in the
range [1, p-1]. If this condition is violated, the key exchange
fails. To prevent confinement attacks, they MUST accept the shared
secret K only if 1 < K < p - 1.
Note that RFC 8268, Section 4 updates the equivalent RFC 4253 statement
(although not the RFC 4419 one) about e and f, but we are already doing
the correct full check there.
DH Public Key values MUST be checked and both conditions:
1 < e < p-1
1 < f < p-1
MUST be true. Values not within these bounds MUST NOT be sent or
accepted by either side. If either one of these conditions is
violated, then the key exchange fails.
This simple check ensures that:
o The remote peer behaves properly.
o The local system is not forced into the two-element subgroup.
The check on K seems like a proxy for checking a number of ways to fix
the DH output (for example by manipulating g) to one of 0, 1, or -1.
This should not be meaningful to security for two reasons:
- all parameters end up in the "transcript" hash that will get signed
by the server's host key, and if the attacker controls the host
key's signature, they have the ability to MitM without resorting to
confinement attacks
- the client secret is ephemeral, so leaking bits of it by forcing it
into small sub-groups does not gain the attacker anything, as the
secret does not get reused
Indeed, this is the same explanation of why it's ok not to check that p
is indeed a (safe) prime, which even OpenSSH omits. Building an
equivalent attack by manipulating p instead of g is left as an exercise
to the reader.
For the future, this is a case study in why we should not add complexity
even when it looks easy enough to do. CL 174257 added the
diffie-hellman-group-exchange kex. That introduced a data race (arguably
a security issue), which was fixed in CL 222078. Then it was too slow,
which led to CL 252337 that removed the primalty check, which required a
full analysis of whether it's safe to skip it, and checking against
other implementations. Now we find there's a bug and we have to do
another security analysis that not even the RFC bothered to do in order
to decide if it's a security issue. My decision in
https://github.com/golang/go/issues/17230#issuecomment-489163656
does not look like the right one in hindsight.
While at it, clean up the code some
- drop useless bit size bounds logic in the server stub that get
ignored by the rest of the function
- make p and g local variables instead of method fields, since they
are not persistent state (this was originally a data race which was
fixed in CL 222078 by making Client not a pointer receiver)
Updates golang/go#17230
Change-Id: I4b1c68537109f627ccd75ec381dcfab57ce1768c
Reviewed-on: https://go-review.googlesource.com/c/crypto/+/392015
Trust: Filippo Valsorda <filippo@golang.org>
Run-TryBot: Filippo Valsorda <filippo@golang.org>
Reviewed-by: Roland Shoemaker <roland@golang.org>
TryBot-Result: Gopher Robot <gobot@golang.org>
RFC 9142 made diffie-hellman-group14-sha256 from RFC 8268 a MUST, and
it's strictly better than diffie-hellman-group14-sha1, which we already
have, and trivial to add.
> The method of key exchange used for the name "diffie-hellman-
> group14-sha256" is the same as that for "diffie-hellman-group14-sha1"
> except that the SHA256 hash algorithm is used.
Ignore the bigger groups which have a meaningful performance cost, and
don't share the same interoperability benefit.
Adapted from CL 387994.
Fixesgolang/go#31731
Co-authored-by: Nicola Murino <nicola.murino@gmail.com>
Change-Id: Id4ce345a2065840f193986739ea890f105a1e929
Reviewed-on: https://go-review.googlesource.com/c/crypto/+/392014
Trust: Filippo Valsorda <filippo@golang.org>
Run-TryBot: Filippo Valsorda <filippo@golang.org>
TryBot-Result: Gopher Robot <gobot@golang.org>
Reviewed-by: Roland Shoemaker <roland@golang.org>
If we are going to send the disconnect message and close the connection,
because we have exhausted the number of authentication attempts, don't
send the final authentication failure message. This behavior matches
that of OpenSSH.
Fixesgolang/go#51149
Change-Id: I43b2de2e854f789161cd7fd6c05876661adfb2c1
Reviewed-on: https://go-review.googlesource.com/c/crypto/+/385236
Trust: Roland Shoemaker <roland@golang.org>
Run-TryBot: Roland Shoemaker <roland@golang.org>
Auto-Submit: Roland Shoemaker <roland@golang.org>
TryBot-Result: Gopher Robot <gobot@golang.org>
Reviewed-by: Ian Lance Taylor <iant@golang.org>
TestRenewFromCache and TestRenewFromCacheAlreadyRenewed had several
races and API misuses:
1. They called t.Fatalf from a goroutine other than the one invoking
the Test function, which is explicitly disallowed (see
https://pkg.go.dev/testing#T).
2. The test did not stop the renewal timers prior to restoring
test-hook functions, and the process of stopping the renewal timers
itself did not wait for in-flight calls to complete. That could
cause data races if one of the renewals failed and triggered a
retry with a short-enough randomized backoff.
(One such race was observed in
https://build.golang.org/log/1a19e22ad826bedeb5a939c6130f368f9979208a.)
3. The testDidRenewLoop hooks accessed the Manager.renewal field
without locking the Mutex guarding that field.
4. TestGetCertificate_failedAttempt set a testDidRemoveState hook, but
didn't wait for the timers referring to that hook to complete
before restoring it, causing races with other timers. I tried
pulling on that thread a bit, but couldn't untangle the numerous
untracked goroutines in the package. Instead, I have made a smaller
and more local change to copy the value of testDidRemoveState into
a local variable in the timer's closure.
Given the number of untracked goroutines in this package, it is likely
that races and/or deadlocks remain. Notably, so far I have been unable
to spot the actual cause of golang/go#51080.
For golang/go#51080
Change-Id: I7797f6ac34ef3c272f16ca805251dac3aa7f0009
Reviewed-on: https://go-review.googlesource.com/c/crypto/+/384594
Trust: Bryan Mills <bcmills@google.com>
Run-TryBot: Bryan Mills <bcmills@google.com>
Reviewed-by: Filippo Valsorda <filippo@golang.org>
TryBot-Result: Gopher Robot <gobot@golang.org>
At Let's Encrypt, we've found that most autocert users do not provide an email address, which makes it hard to get in touch when things go wrong with their client. Demonstrating how to provide an email will probably encourage more people to provide one.
Change-Id: I0aa1ecea7cfbe55ae155804194fb57a8e695c658
GitHub-Last-Rev: 902b5fe2682a6be5af91e886272fd680fd67a94e
GitHub-Pull-Request: golang/crypto#186
Reviewed-on: https://go-review.googlesource.com/c/crypto/+/323313
Reviewed-by: Roland Shoemaker <roland@golang.org>
Run-TryBot: Roland Shoemaker <roland@golang.org>
TryBot-Result: Gopher Robot <gobot@golang.org>
Reviewed-by: Katie Hockman <katie@golang.org>
Trust: Katie Hockman <katie@golang.org>
Let's Encrypt is revoking all certificates verified with TLS-ALPN-01
beofre January 26th due to a compliance issue. Detect them and force a
renewal.
Also, fix the tests which were not testing if expired certificates were
renewed anymore, as the test certificates were always invalid due to not
having SANs.
Change-Id: If9d0632b2edfe0b7fb70f6cfd7e65e46e2d047dc
Reviewed-on: https://go-review.googlesource.com/c/crypto/+/381114
Trust: Filippo Valsorda <filippo@golang.org>
Run-TryBot: Filippo Valsorda <filippo@golang.org>
TryBot-Result: Gopher Robot <gobot@golang.org>
Reviewed-by: Roland Shoemaker <roland@golang.org>
Update acme/autocert test to not depend on whether idna.Lookup uses
transitional processing (Go 1.17 and earlier) or nontransitional
processing (Go 1.18 and later).
Change-Id: I29ca0aaca0ac75a932919a4c7cf8e9fca033b497
Reviewed-on: https://go-review.googlesource.com/c/crypto/+/364014
Trust: Damien Neil <dneil@google.com>
Reviewed-by: Ian Lance Taylor <iant@golang.org>
This change adds support for RSA SHA-2 based signatures for host keys and certificates. It also switches the default certificate signature algorithm for RSA to use SHA-512. This is implemented by treating ssh.Signer specially when the key type is `ssh-rsa` by also allowing SHA-256 and SHA-512 signatures.
Fixesgolang/go#37278
Change-Id: I2ee1ac4ae4c9c1de441a2d6cf1e806357ef18910
Reviewed-on: https://go-review.googlesource.com/c/crypto/+/220037
Trust: Jason A. Donenfeld <Jason@zx2c4.com>
Run-TryBot: Jason A. Donenfeld <Jason@zx2c4.com>
TryBot-Result: Go Bot <gobot@golang.org>
Reviewed-by: Jason A. Donenfeld <Jason@zx2c4.com>
Reviewed-by: Roland Shoemaker <roland@golang.org>
Let's Encrypt is defaulting to a longer cross-signed chain on May 4th,
2021 but will offer the ability to download the shorter chain via an
alternate URL via a link header [1]. The shorter chain can be selected
to workaround a validation bug in legacy versions of OpenSSL, GnuTLS,
and LibreSSL. The alternate relation is described in section 7.4.2 of
RFC 8555.
ListCertAlternates should be passed the original certificate chain URL
and will return a list of alternate chain URLs that can be passed to
FetchCert to download.
Fixesgolang/go#42437
[1] https://community.letsencrypt.org/t/production-chain-changes/150739
Change-Id: Iaa32e49cb1322ac79ac1a5b4b7980d5401f4b86e
Reviewed-on: https://go-review.googlesource.com/c/crypto/+/277294
Trust: Filippo Valsorda <filippo@golang.org>
Run-TryBot: Filippo Valsorda <filippo@golang.org>
Reviewed-by: Roland Shoemaker <roland@golang.org>
TryBot-Result: Go Bot <gobot@golang.org>
When methods that use POSTs are called on a acme.Client which has a
nil Key field it will cause a deadlock due to an infinite loop in
the code that looks up the account KID. This change adds a check for
the key being nil, and errors out if that is the case. Also adds a
test for this behavior.
Fixesgolang/go#38790
Change-Id: I65ff6bbbade7ed2d85306895904a976089730bbf
Reviewed-on: https://go-review.googlesource.com/c/crypto/+/233164
Trust: Roland Shoemaker <roland@golang.org>
Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org>
This imports the crypto/ed25519/internal/edwards25519/field package from
CL 276272, and uses it in x/crypto/curve25519.
The ScalarMult code was ported 1:1 from curve25519_generic.go.
old code lines new code lines
Go 896 463
Assembly (manually written) 1772 (1772) 362 (34)
43% performance loss on amd64, 33% loss on 386, and 45% gain on arm64.
Feels worth it to remove 1700 lines of manually written assembly.
Apple M1
name old time/op new time/op delta
X25519Basepoint-8 85.0µs ± 1% 46.4µs ± 0% -45.39% (p=0.000 n=10+9)
X25519-8 84.4µs ± 0% 46.7µs ± 2% -44.76% (p=0.000 n=8+9)
Intel(R) Core(TM) i5-7400 CPU @ 3.00GHz
name old time/op new time/op delta
X25519Basepoint-4 42.6µs ± 1% 60.9µs ± 1% +43.22% (p=0.000 n=9+10)
X25519-4 42.5µs ± 1% 60.9µs ± 0% +43.17% (p=0.000 n=9+9)
Intel(R) Core(TM) i5-7400 CPU @ 3.00GHz [GOARCH=386]
name old time/op new time/op delta
X25519Basepoint-4 530µs ± 1% 703µs ± 1% +32.81% (p=0.000 n=10+10)
X25519-4 530µs ± 1% 706µs ± 1% +33.18% (p=0.000 n=10+10)
Change-Id: I1dc62a6a3a3e417a1366ff873c475087a0395124
Reviewed-on: https://go-review.googlesource.com/c/crypto/+/315269
Run-TryBot: Filippo Valsorda <filippo@golang.org>
TryBot-Result: Go Bot <gobot@golang.org>
Trust: Filippo Valsorda <filippo@golang.org>
Trust: Katie Hockman <katie@golang.org>
Reviewed-by: Katie Hockman <katie@golang.org>
This change was produced using 'go mod tidy -go=1.17'
with a go command built at CL 315210.
This activates lazy loading, and updates the go.mod file to maintain
the lazy-loading invariants (namely, including an explicit requirement
for every package transitively imported by the main module).
Note that this does *not* prevent users with earlier go versions from
successfully building packages from this module.
For golang/go#36460.
Change-Id: I28a6f54b1e41e9e18b726cacba25a52069b8a4e9
Reviewed-on: https://go-review.googlesource.com/c/crypto/+/316109
Trust: Bryan C. Mills <bcmills@google.com>
Run-TryBot: Bryan C. Mills <bcmills@google.com>
Reviewed-by: Alexander Rakoczy <alex@golang.org>
TryBot-Result: Go Bot <gobot@golang.org>
Add support for RFC 8555 subproblems. The type naming is real bike-shed
territory, but I think I've mostly matched the existing style of the
package. In a similar vein the format of how to print subproblems
when stringing an acme.Error is up for debate (it could just be
completely ignored, and require clients to inspect Error.Subproblems
themselves).
Fixesgolang/go#38978
Change-Id: Ice803079bab621ae9410de79e7e75e11c1af21b6
Reviewed-on: https://go-review.googlesource.com/c/crypto/+/233165
Trust: Roland Shoemaker <roland@golang.org>
Run-TryBot: Roland Shoemaker <roland@golang.org>
TryBot-Result: Go Bot <gobot@golang.org>
Reviewed-by: Russ Cox <rsc@golang.org>
There is some implicit R0 == $0 here which may not be desired.
"CMP $0, Rx" translates to "cmpd r0, rX" which is less preferred
than "cmpdi r0, 0". Likewise, "ADDE $0, Rx" also turns into
"adde R0, Rx, Rx" which can be simplified to a similar instruction
which adds to zero with carry, "ADDZE Rx, Rx".
Change-Id: I5de17ff5b02c7c9d57daf014c7fe9420bfbeeeab
Reviewed-on: https://go-review.googlesource.com/c/crypto/+/311372
Reviewed-by: Carlos Eduardo Seo <carlos.seo@linaro.org>
Trust: Carlos Eduardo Seo <carlos.seo@linaro.org>
Trust: Lynn Boger <laboger@linux.vnet.ibm.com>
HMAC-SHA256 is a perfectly fine MAC algorithm, and there is no need to
ask the user to choose one.
This does break compatibility with the previous API, but it had been
live only for a weekend, so hopefully still in a window in which we can
make changes with a limited blast radius.
Updates golang/go#41430
Change-Id: I03741a545b25b9fcc147760cd20e9d7029844a6c
Reviewed-on: https://go-review.googlesource.com/c/crypto/+/279453
Trust: Filippo Valsorda <filippo@golang.org>
Run-TryBot: Filippo Valsorda <filippo@golang.org>
TryBot-Result: Go Bot <gobot@golang.org>
Reviewed-by: James Kasten <jdkasten@google.com>
Reviewed-by: Roland Shoemaker <roland@golang.org>
The ability to trigger the 'gssapi-with-mic' authentication method is
not properly gated by the presence of the GSSAPIWithMICConfig field of
the ServerConfig type. If this field is not set and a client sends a
'gssapi-with-mic' request, regardless of if the server advertises it,
the server will panic.
This issue was discovered and reported by Joern Schneewesiz, GitLab
Security Research Team.
Fixes CVE-2020-29652
Change-Id: Ie25de2766e442c8ab46680aae3ac89b0823cdeed
Reviewed-on: https://go-review.googlesource.com/c/crypto/+/278852
Trust: Roland Shoemaker <roland@golang.org>
Run-TryBot: Roland Shoemaker <roland@golang.org>
Reviewed-by: Filippo Valsorda <filippo@golang.org>
TryBot-Result: Go Bot <gobot@golang.org>
This change clarifies the behaviors of ParseResponse and ParseResponseForCert,
particularly when parsing responses that contain multiple certificate statuses.
Fixesgolang/go#30651
Change-Id: Ia632c8c2a69d1b0c17d71f9f9dcb59ddb0be401b
GitHub-Last-Rev: 481f613438c91521fd90078cc0915cf01cf44b4e
GitHub-Pull-Request: golang/crypto#122
Reviewed-on: https://go-review.googlesource.com/c/crypto/+/220353
Reviewed-by: Katie Hockman <katie@golang.org>
Trust: Roland Shoemaker <roland@golang.org>
The existing implementation validates that the prime returned by the server is, in fact, prime, which is extremely slow, especially for large key sizes.
As other implementations, including OpenSSH, do not verify the primality of the provided parameters, this change removes that check.
Fixesgolang/go#41151
Change-Id: I7539714c690f08b5792a0c540cbf46c3e81f13ba
Reviewed-on: https://go-review.googlesource.com/c/crypto/+/252337
Reviewed-by: Filippo Valsorda <filippo@golang.org>
Run-TryBot: Filippo Valsorda <filippo@golang.org>
TryBot-Result: Go Bot <gobot@golang.org>
Trust: Roland Shoemaker <roland@golang.org>
By using a slice instead of a map for tried authentication methods the order is always the same. Small slices are also faster than maps.
Before the change sometimes I get the error:
ssh: handshake failed: ssh: unable to authenticate, attempted methods [none publickey], no supported methods remain
and sometimes:
ssh: handshake failed: ssh: unable to authenticate, attempted methods [publickey none], no supported methods remain
Change-Id: I06507d57e9eef497ff05bce088d52607e69dde3e
GitHub-Last-Rev: 3a46aae4c6e3e5f52ca4b04384b3cc4efc039aa6
GitHub-Pull-Request: golang/crypto#142
Reviewed-on: https://go-review.googlesource.com/c/crypto/+/239171
Reviewed-by: Han-Wen Nienhuys <hanwen@google.com>
Run-TryBot: Han-Wen Nienhuys <hanwen@google.com>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Required updating wycheproofModVer to pull the most recent test
vectors. Tests against SHA1, SHA224, SHA256, SHA384, and SHA512
constructions but not the SHA3 variants.
Change-Id: I5b66632ac0c7106bd9b405f6636922a6383d8b9e
Reviewed-on: https://go-review.googlesource.com/c/crypto/+/234718
Run-TryBot: Katie Hockman <katie@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Katie Hockman <katie@golang.org>
rfc4254 section 5.4 states that channel request messages sent to an
unrecognized channel should be replied with a `SSH_MSG_CHANNEL_FAILURE`,
rather than erring out and closing the mux. This can occur with servers
like openssh-portable, which can begin to close a channel and also use
that channel for keepalives before it has received a closed response
from the client.
Fixesgolang/go#38908
Change-Id: Id68b77e16b2889d3a21d505ed8018f9f457e067a
GitHub-Last-Rev: 8a92f87dc30697d9e3805af695efdf1b1dc8409b
GitHub-Pull-Request: golang/crypto#136
Reviewed-on: https://go-review.googlesource.com/c/crypto/+/232659
Run-TryBot: Filippo Valsorda <filippo@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Filippo Valsorda <filippo@golang.org>
Fix for problem with ReadASN1Boolean, which uses invalid tag (Integer / 0x02) when trying to read boolean value. This is a fix for the one case mentioned in "x/crypto/cryptobyte: cannot read boolean values #26565"
This is specified in ITU-T X.690, section 8.2, with DER additions specified in 11.1.
Change-Id: I3c9406bd6febb6112f380224fec1d42a6cd64ed4
GitHub-Last-Rev: fd7d01c897d8aa32d92115be9017f84d75fc4467
GitHub-Pull-Request: golang/crypto#137
Reviewed-on: https://go-review.googlesource.com/c/crypto/+/233161
Reviewed-by: Adam Langley <agl@golang.org>
Run-TryBot: Adam Langley <agl@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
The original referenced paper is no longer available. I contacted the author, and this is the reference he supplied.
Change-Id: Ib5ad88932f2bfc12ff62639f7fb7c3ee568610d6
GitHub-Last-Rev: 2cf7d15c63a114952c90a018ea5afe085965202e
GitHub-Pull-Request: golang/crypto#132
Reviewed-on: https://go-review.googlesource.com/c/crypto/+/228638
Reviewed-by: Han-Wen Nienhuys <hanwen@google.com>
Run-TryBot: Han-Wen Nienhuys <hanwen@google.com>
TryBot-Result: Gobot Gobot <gobot@golang.org>
The example was failing to direct users on what to do with the nonce,
which should be almost universally prepended to the ciphertext.
Also, leaving key out of the function was pulling the entire file into
the example.
Updates golang/go#38369
Change-Id: I3a13342fff02e1a5d6f9c4ef2a8bddf0b1097707
Reviewed-on: https://go-review.googlesource.com/c/crypto/+/227937
Run-TryBot: Filippo Valsorda <filippo@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Katie Hockman <katie@golang.org>
The existing code for decrypting OpenSSH-format keys only allows aes256-ctr, the current ssh-keygen default.
However, the default encryption scheme was aes256-cbc until relatively recently, and some of these keys are still in use.
Support for aes256-cbc has been added.
Fixesgolang/go#37939
Change-Id: I3730347109c5dd18e4cbe61b48bbca9566ad61d2
Reviewed-on: https://go-review.googlesource.com/c/crypto/+/224817
Reviewed-by: Filippo Valsorda <filippo@golang.org>
This requirement is from RFC 4880 4.2.2.4.
Also simplify the partialLengthWriter loop. The old code worked but
was written in a confusing way, with a loop whose terminating condition
didn't make sense and was never true in practice.
Rewrite it to more clearly do a set of partial writes of decreasing size.
Fixesgolang/go#32474
Change-Id: Ia53ceb39a34f1d6f2ea7c60190d52948bb0db59b
Reviewed-on: https://go-review.googlesource.com/c/crypto/+/181121
Run-TryBot: Ian Lance Taylor <iant@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Emmanuel Odeke <emm.odeke@gmail.com>
An attacker can craft an ssh-ed25519 or sk-ssh-ed25519@openssh.com
public key, such that the library will panic when trying to verify a
signature with it. Clients can deliver such a public key and signature
to any golang.org/x/crypto/ssh server with a PublicKeyCallback, and
servers can deliver them to any golang.org/x/crypto/ssh client.
This issue was discovered and reported by Alex Gaynor, Fish in a Barrel,
and is tracked as CVE-2020-9283.
Change-Id: Ie25b78a0b0181fbbc8cc7de4f4e27d908777529c
Reviewed-on: https://go-review.googlesource.com/c/crypto/+/220357
Run-TryBot: Filippo Valsorda <filippo@golang.org>
Reviewed-by: Katie Hockman <katie@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
CL 212377 changed end of input character on windows - from \n to \r.
But CL 212377 did not adjust ReadConsole accordingly. For example,
after CL 212377 \n was still used to end of password processing,
and \r was ignored.
This CL swaps these rules - \r is now used to end password processing,
and \n are ignored. The change only affects windows, all non windows
code should work as before.
This CL also adjusts TestReadPasswordLineEnd to fit new rules.
Fixesgolang/go#36609
Change-Id: I027bf80d10e7d4d4b17ff0264935d14b8bea9097
Reviewed-on: https://go-review.googlesource.com/c/crypto/+/215417
Run-TryBot: Alex Brainman <alex.brainman@gmail.com>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Filippo Valsorda <filippo@golang.org>
// Copyright 2019 The Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
// +build !amd64 gccgo appengine purego
packagecurve25519
funcscalarMult(out,in,base*[32]byte){
scalarMultGeneric(out,in,base)
}
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