Nicola Murino
b2d3a6a4b4
ssh/agent: ensure to not add duplicated keys
...
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 >
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2024-08-06 16:07:48 +00:00
Ilia Mirkin
3375612bf4
ssh: add support for unpadded RSA signatures
...
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.
Fixes golang/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 >
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2024-07-26 16:39:19 +00:00
Nicola Murino
bb80217080
ssh: don't use dsa keys in integration tests
...
DSA has been disabled by default since OpenSSH 9.8, so tests
fail with newer versions of OpenSSH
Change-Id: I57b9abde8845cd05116a637a21cbbb8af740b2e0
Reviewed-on: https://go-review.googlesource.com/c/crypto/+/599955
Reviewed-by: Dmitri Shuralyov <dmitshur@google.com >
Auto-Submit: Nicola Murino <nicola.murino@gmail.com >
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Reviewed-by: Roland Shoemaker <roland@golang.org >
2024-07-22 17:35:33 +00:00
Ilia Mirkin
6879722274
ssh: remove go 1.21+ dependency on slices
...
Fixes golang/go#68469
Change-Id: Ieea3c444b0458d169a6ff224e59b3b815264de89
Reviewed-on: https://go-review.googlesource.com/c/crypto/+/598775
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Reviewed-by: Cherry Mui <cherryyz@google.com >
Reviewed-by: Carlos Amedee <carlos@golang.org >
2024-07-17 17:59:23 +00:00
Filippo Valsorda
a6a393ffd6
all: bump go.mod version and drop compatibility shims
...
Also, remove the legacy import annotations.
Fixes golang/go#68147
Change-Id: Ibfcc9322f27224c0ba92ea42cd56912a7d8783fd
Reviewed-on: https://go-review.googlesource.com/c/crypto/+/594256
Reviewed-by: Dmitri Shuralyov <dmitshur@google.com >
Auto-Submit: Filippo Valsorda <filippo@golang.org >
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2024-06-26 15:12:35 +00:00
cuishuang
1c7450041f
ssh/test: make struct comment match struct name
...
Change-Id: I9bfd61fe96d2bdaa890379a1a31b7e0f3f2b67ed
Reviewed-on: https://go-review.googlesource.com/c/crypto/+/594435
Reviewed-by: Ian Lance Taylor <iant@google.com >
Auto-Submit: Ian Lance Taylor <iant@google.com >
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2024-06-24 16:35:32 +00:00
samiponkanen
d4e7c9cb6c
ssh: fail client auth immediately on receiving disconnect message
...
Fixes golang/go#66991
Change-Id: I60dd8a807578f162fda0e49bcd6fbf289d444396
GitHub-Last-Rev: f88329d35712873d0d7e3b39b9b11e7bfbc28e71
GitHub-Pull-Request: golang/crypto#293
Reviewed-on: https://go-review.googlesource.com/c/crypto/+/581075
Reviewed-by: Cherry Mui <cherryyz@google.com >
Reviewed-by: Roland Shoemaker <roland@golang.org >
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2024-06-04 17:03:48 +00:00
Mariano Cano
349231f7e4
ssh: implement CryptoPublicKey on sk keys
...
This commit implements the CryptoPublicKey interface for the
skECDSAPublicKey and skEd25519PublicKey types.
Fixes golang/go#62518
Change-Id: I2b8ac89196fbb3614bf5c675127bed23f1cf6b26
Reviewed-on: https://go-review.googlesource.com/c/crypto/+/526875
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2024-05-29 18:20:30 +00:00
Andrew Lytvynov
44c9b0ff9e
ssh: allow server auth callbacks to send additional banners
...
Add a new BannerError error type that auth callbacks can return to send
banner to the client. While the BannerCallback can send the initial
banner message, auth callbacks might want to communicate more
information to the client to help them diagnose failures.
Updates golang/go#64962
Change-Id: I97a26480ff4064b95a0a26042b0a5e19737cfb62
Reviewed-on: https://go-review.googlesource.com/c/crypto/+/558695
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2024-05-22 20:07:48 +00:00
Nicola Murino
ebb717d630
ssh: validate key type in SSH_MSG_USERAUTH_PK_OK response
...
According to RFC 4252 Section 7 the algorithm in SSH_MSG_USERAUTH_PK_OK
should match that of the request but some servers send the key type instead.
OpenSSH checks for the key type, so we do the same.
Fixes golang/go#66438
Fixes golang/go#64785
Fixes golang/go#56342
Fixes golang/go#54027
Change-Id: I2f733f0faece097e44ba7a97c868d30a53e21d79
Reviewed-on: https://go-review.googlesource.com/c/crypto/+/573360
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2024-05-03 13:40:56 +00:00
Nicola Murino
b92bf9480d
ssh: respect MaxAuthTries also for "none" auth attempts
...
Only the first "none" auth attempt is allowed without penality
Change-Id: Ibe776e968ba406445eeb94e8f1959383b88c98f7
Reviewed-on: https://go-review.googlesource.com/c/crypto/+/575995
Reviewed-by: Filippo Valsorda <filippo@golang.org >
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Reviewed-by: Than McIntosh <thanm@google.com >
2024-04-04 14:49:27 +00:00
Nicola Murino and Peter Verraedt
6f79b5a20c
ssh: add server side multi-step authentication
...
Add support for sending back partial success to the client while
handling authentication in the server. This is implemented by a special
error that can be returned by any of the authentication methods, which
contains the authentication methods to offer next.
This patch is based on CL 399075 with some minor changes and the
addition of test cases.
Fixes golang/go#17889
Fixes golang/go#61447
Fixes golang/go#64974
Co-authored-by: Peter Verraedt <peter.verraedt@kuleuven.be >
Change-Id: I05c8f913bb407d22c2e41c4cbe965e36ab4739b0
Reviewed-on: https://go-review.googlesource.com/c/crypto/+/516355
Reviewed-by: Andrew Lytvynov <awly@tailscale.com >
Reviewed-by: Than McIntosh <thanm@google.com >
Reviewed-by: Dmitri Shuralyov <dmitshur@google.com >
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Auto-Submit: Filippo Valsorda <filippo@golang.org >
2024-04-03 07:40:24 +00:00
cui fliter
b91329d961
all: remove redundant words in comments and fix some typos
...
Change-Id: I3078492dc020770aca630e0b362df0212bd41e32
Reviewed-on: https://go-review.googlesource.com/c/crypto/+/569156
Auto-Submit: Ian Lance Taylor <iant@google.com >
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2024-03-18 09:27:23 +00:00
Nicola Murino
0d2316b267
ssh/test: work around for TestCiphers failures on macOS
...
TestCiphers is already skipped on macOS when testing data received
from the server, so move the test for sending data after the
receiving one to work around this new integration test failure.
Fixes golang/go#65732
Change-Id: Ie0c614c5373735ae8aefdd7ded643579b130f4b3
Reviewed-on: https://go-review.googlesource.com/c/crypto/+/564457
Reviewed-by: Bryan Mills <bcmills@google.com >
Reviewed-by: Carlos Amedee <carlos@golang.org >
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2024-02-28 20:47:20 +00:00
Nicola Murino
1c981e6f81
ssh/test: don't use DSA keys in integrations tests, update test RSA key
...
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
Fixes golang/go#65581
Change-Id: I54bf997b61ef4d91d38eb624275737ba7291bb20
Reviewed-on: https://go-review.googlesource.com/c/crypto/+/562755
Reviewed-by: Roland Shoemaker <roland@golang.org >
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Reviewed-by: Filippo Valsorda <filippo@golang.org >
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2024-02-14 13:16:51 +00:00
Bryan C. Mills
dbb6ec16ec
ssh/test: skip tests on darwin that fail on the darwin-amd64-longtest LUCI builder
...
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 .
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Change-Id: I9e43579469de3fe9329c093b5916bbed0edd3751
Reviewed-on: https://go-review.googlesource.com/c/crypto/+/554077
Reviewed-by: Dmitri Shuralyov <dmitshur@golang.org >
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2024-01-08 16:44:29 +00:00
Bryan C. Mills
403f69900e
ssh/test: avoid leaking a net.UnixConn in server.TryDialWithAddr
...
For golang/go#64959 .
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2024-01-08 16:33:12 +00:00
Roland Shoemaker
9d2ee975ef
ssh: implement strict KEX protocol changes
...
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
Fixes golang/go#64784
Change-Id: I96b53afd2bd2fb94d2b6f2a46a5dacf325357604
Reviewed-on: https://go-review.googlesource.com/c/crypto/+/550715
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2023-12-18 16:33:08 +00:00
Edoardo Spadolini
4e5a26183e
ssh: close net.Conn on all NewServerConn errors
...
This PR ensures that the net.Conn passed to ssh.NewServerConn is closed
on all error return paths, not just after a failed handshake. This matches
the behavior of ssh.NewClientConn.
Change-Id: Id8a51d10ae8d575cbbe26f2ef6b37de7cca840ec
GitHub-Last-Rev: 81bb2e58a881a9a85935740bda06b034b32a8ce3
GitHub-Pull-Request: golang/crypto#279
Reviewed-on: https://go-review.googlesource.com/c/crypto/+/549095
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2023-12-14 18:23:28 +00:00
Will Mortensen
fdfe1f8531
ssh: defer channel window adjustment
...
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).
Fixes golang/go#57424 .
Change-Id: Ifcef5be76fcc3f0b1a6dc396096bed9c50d64f21
Reviewed-on: https://go-review.googlesource.com/c/crypto/+/459915
Reviewed-by: Nicola Murino <nicola.murino@gmail.com >
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2023-11-27 17:27:49 +00:00
Pavel Repin
7e6fbd82c8
ssh: wrap errors from client handshake
...
When an error is returned by a user defined host key callback,
it is now possible to handle it using standard Go mechanisms
such as errors.Is or errors.As.
Fixes golang/go#61309
Change-Id: I4269c5f8eacd8e7e8d85070ad249f0e27777b15f
GitHub-Last-Rev: d2a34d5c8225d6aaaee287ce3ea8b218fbe210d4
GitHub-Pull-Request: golang/crypto#266
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2023-11-27 17:24:46 +00:00
Heschi Kreinick
325b735346
ssh/test: skip TestSSHCLIAuth on Windows
...
It's failing with a file permissions error:
sign_and_send_pubkey: signing using rsa-sha2-512 SHA256:Anr3LjZK8YVpjrxu79myrW9Hrb/wpcMNpVvTq/RcBm8\r\nBad permissions. Try removing permissions for user: UNKNOWN\\\\UNKNOWN (S-1-15-2-2) on file C:/b/s/w/ir/x/t/TestSSHCLIAuth1586735692/001/rsa.
For golang/go#64403
Change-Id: Iece8eac4a1ac349f9f7a273ac7389315cb96568e
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2023-11-27 16:29:38 +00:00
Randy Reddig
b2d7c26edb
ssh: add (*Client).DialContext method
...
This change adds DialContext to ssh.Client, which opens a TCP-IP
connection tunneled over the SSH connection. This is useful for
proxying network connections, e.g. setting
(net/http.Transport).DialContext.
Fixes golang/go#20288 .
Change-Id: I110494c00962424ea803065535ebe2209364ac27
GitHub-Last-Rev: 3176984a71a9a1422702e3a071340ecfff71ff62
GitHub-Pull-Request: golang/crypto#260
Reviewed-on: https://go-review.googlesource.com/c/crypto/+/504735
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2023-11-27 15:35:52 +00:00
Nicola Murino
1c17e20020
ssh: fix certificate authentication with OpenSSH 7.2-7.7
...
OpenSSH 7.2-7.7 advertises support for rsa-sha2-256 and rsa-sha2-512
in the "server-sig-algs" extension but doesn't support these
algorithms for certificate authentication, so if the server rejects
the key try to use the obtained algorithm as if "server-sig-algs" had
not been implemented.
Fixes golang/go#58371
Change-Id: Id49960d3dedd32a21e2c6c2689b1696e05398286
Reviewed-on: https://go-review.googlesource.com/c/crypto/+/510155
Reviewed-by: Filippo Valsorda <filippo@golang.org >
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Auto-Submit: Nicola Murino <nicola.murino@gmail.com >
2023-11-23 17:23:14 +00:00
Matt Dainty
1cf1811d71
ssh: use the correct token from the client
...
This fixes the case where AcceptSecContext is always called with the
first token sent by the client instead of the most recently sent one.
Previously, despite being being read from the client and unmarshalled,
it was never actually used.
Fixes golang/go#43875
Change-Id: I1967d9a107af03d6778a9437b48e785d61710ee5
GitHub-Last-Rev: 0d58e4d50014fac0a9ea1eef85489172137eb8aa
GitHub-Pull-Request: golang/crypto#176
Reviewed-on: https://go-review.googlesource.com/c/crypto/+/286252
Run-TryBot: Filippo Valsorda <filippo@golang.org >
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LUCI-TryBot-Result: Go LUCI <golang-scoped@luci-project-accounts.iam.gserviceaccount.com >
Run-TryBot: Nicola Murino <nicola.murino@gmail.com >
Reviewed-by: Nicola Murino <nicola.murino@gmail.com >
Reviewed-by: Filippo Valsorda <filippo@golang.org >
Reviewed-by: Than McIntosh <thanm@google.com >
2023-11-11 11:26:14 +00:00
Bryan C. Mills
ff15cd57d1
ssh: eliminate some goroutine leaks in tests and examples
...
This should fix the "Log in goroutine" panic seen in
https://build.golang.org/log/e42bf69fc002113dbccfe602a6c67fd52e8f31df ,
as well as a few other related leaks. It also helps to verify that
none of the functions under test deadlock unexpectedly.
See https://go.dev/wiki/CodeReviewComments#goroutine-lifetimes .
Updates golang/go#58901 .
Change-Id: Ica943444db381ae1accb80b101ea646e28ebf4f9
Reviewed-on: https://go-review.googlesource.com/c/crypto/+/541095
Auto-Submit: Bryan Mills <bcmills@google.com >
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Reviewed-by: Nicola Murino <nicola.murino@gmail.com >
Reviewed-by: Heschi Kreinick <heschi@google.com >
2023-11-09 17:49:15 +00:00
Nicola Murino
eb61739cd9
ssh: allow to configure public key auth algorithms on the server side
...
Fixes golang/go#61244
Change-Id: I29b43e379cf0cdb07b0d6935666491b997157e73
Reviewed-on: https://go-review.googlesource.com/c/crypto/+/510775
TryBot-Result: Gopher Robot <gobot@golang.org >
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2023-11-08 19:10:19 +00:00
Nicola Murino
42c83fffff
ssh: try harder to detect incorrect passwords for legacy PEM encryption
...
Because of deficiencies in the format, DecryptPEMBlock does not always
detect an incorrect password. In these cases decrypted DER bytes is
random noise. If the parsing of the key returns an asn1.StructuralError
we return x509.IncorrectPasswordError.
Fixes golang/go#62265
Change-Id: Ib8b845f2bd01662c1f1421d35859a32ac5b78da7
Reviewed-on: https://go-review.googlesource.com/c/crypto/+/538835
Reviewed-by: Heschi Kreinick <heschi@google.com >
Reviewed-by: Filippo Valsorda <filippo@golang.org >
Auto-Submit: Filippo Valsorda <filippo@golang.org >
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Reviewed-by: Cherry Mui <cherryyz@google.com >
2023-11-08 18:01:48 +00:00
Nicola Murino
cf8dcb0f7d
ssh: add test case against ssh CLI
...
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 >
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2023-10-24 07:12:59 +00:00
Dmitri Shuralyov
8779cbd1c9
all: update go directive to 1.18
...
Done with:
go get go@1.18
go mod tidy
go fix ./...
Using go1.21.3.
Also update avo to v0.5.0 in the curve25519/internal/field/_asm module.
It's newer and produces no diff in the generated code.
For golang/go#60268 .
Change-Id: I9bd771ee8561595d7f68aaca76df6e3e33d35013
Reviewed-on: https://go-review.googlesource.com/c/crypto/+/534141
LUCI-TryBot-Result: Go LUCI <golang-scoped@luci-project-accounts.iam.gserviceaccount.com >
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Auto-Submit: Dmitri Shuralyov <dmitshur@golang.org >
Reviewed-by: Dmitri Shuralyov <dmitshur@google.com >
2023-10-11 22:02:22 +00:00
Nicola Murino
2aeefc3f8a
ssh: add support for SSH_AGENT_CONSTRAIN_EXTENSION with id 255
...
it was changed in the following draft
https://datatracker.ietf.org/doc/html/draft-miller-ssh-agent-03
The id 3 is now used for SSH_AGENT_CONSTRAIN_MAXSIGN key constraint,
an OpenSSH extension to the protocol that we do not currently support.
Instead, we added a compatibility layer for
SSH_AGENT_CONSTRAIN_EXTENSION with ID 3.
Fixes golang/go#62311
Change-Id: I421aee92aee9e693e43f66e6a5515c055333cb9b
Reviewed-on: https://go-review.googlesource.com/c/crypto/+/525355
Reviewed-by: Matthew Dempsky <mdempsky@google.com >
Run-TryBot: Nicola Murino <nicola.murino@gmail.com >
Reviewed-by: Filippo Valsorda <filippo@golang.org >
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2023-10-11 10:27:03 +00:00
Nicola Murino
833695f0a5
ssh: add server side support for ping@openssh.com protocol extension
...
Fixes golang/go#62390
Change-Id: Ie4dc577fb55b45a0c26a9e2dc5903af2bd382e00
Reviewed-on: https://go-review.googlesource.com/c/crypto/+/524775
TryBot-Result: Gopher Robot <gobot@golang.org >
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Reviewed-by: Filippo Valsorda <filippo@golang.org >
2023-10-04 16:04:50 +00:00
Sebastiaan van Stijn
b665ba6f6f
all: use crypto/ed25519 instead of golang.org/x/crypto/ed25519
...
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 >
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Reviewed-by: Than McIntosh <thanm@google.com >
2023-09-27 14:30:17 +00:00
Nicola Murino
a1aeb9b34e
ssh: add test cases for compatibility with old (buggy) clients
...
Improved test cases for CL 506835.
Change-Id: If4a98ae4a7b39d2e59b203d10080b71283e1a80e
Reviewed-on: https://go-review.googlesource.com/c/crypto/+/525735
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Reviewed-by: Ian Lance Taylor <iant@google.com >
Reviewed-by: Filippo Valsorda <filippo@golang.org >
Auto-Submit: Filippo Valsorda <filippo@golang.org >
2023-09-20 18:10:32 +00:00
Nicola Murino
28c53ff63c
ssh: add MultiAlgorithmSigner
...
MultiAlgorithmSigner allows to restrict client-side, server-side and
certificate signing algorithms.
Fixes golang/go#52132
Fixes golang/go#36261
Change-Id: I295092f1bba647327aaaf294f110e9157d294159
Reviewed-on: https://go-review.googlesource.com/c/crypto/+/508398
Reviewed-by: Filippo Valsorda <filippo@golang.org >
Run-TryBot: Filippo Valsorda <filippo@golang.org >
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2023-09-20 18:10:30 +00:00
Mariano Cano
d359caa4a3
ssh: support for marshaling keys using the OpenSSH format
...
This adds methods to marshal private keys, encrypted and unencrypted
to the OpenSSH format.
Fixes golang/go#37132
Change-Id: I1a95301f789ce04858e6b147748c6e8b7700384b
Reviewed-on: https://go-review.googlesource.com/c/crypto/+/218620
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2023-09-05 20:25:46 +00:00
Nicola Murino
c5370d2cc6
ssh: check the declared public key algo against decoded one
...
This check will ensure we don't accept e.g. ssh-rsa-cert-v01@openssh.com
algorithm with ssh-rsa public key type.
The algorithm and public key type must be consistent: both must be
certificate algorithms, or neither.
Change-Id: I1d75074fb4d6db3a8796408e98ddffe577a96ab1
Reviewed-on: https://go-review.googlesource.com/c/crypto/+/506836
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2023-09-05 16:18:45 +00:00
Nicola Murino
edc325d13a
ssh: fix call to Fatalf from a non-test goroutine
...
Also fix some redundant type declarations.
Change-Id: Iad2950b67b1ec2e2590c59393b8ad15421ed3add
GitHub-Last-Rev: 41cf552f11387208491dee7b867050475043b25e
GitHub-Pull-Request: golang/crypto#263
Reviewed-on: https://go-review.googlesource.com/c/crypto/+/505798
Reviewed-by: Dmitri Shuralyov <dmitshur@google.com >
Reviewed-by: David Chase <drchase@google.com >
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Run-TryBot: Filippo Valsorda <filippo@golang.org >
2023-07-31 18:14:41 +00:00
Nicola Murino
eab9315960
ssh: add diffie-hellman-group16-sha512 kex
...
This group is disabled by default because it is a bit slower than
the others.
The group18-sha512 variant is too slow to include.
Benchstat results including diffie-hellman-group18-sha512:
name time/op
Kexes/diffie-hellman-group-exchange-sha256-12 22.6ms ± 9%
Kexes/diffie-hellman-group18-sha512-12 1.15s ±11%
Kexes/ecdh-sha2-nistp384-12 3.91ms ± 6%
Kexes/ecdh-sha2-nistp256-12 304µs ± 5%
Kexes/curve25519-sha256@libssh.org-12 413µs ± 7%
Kexes/ecdh-sha2-nistp521-12 11.6ms ±13%
Kexes/curve25519-sha256-12 361µs ± 5%
Kexes/diffie-hellman-group-exchange-sha1-12 22.9ms ± 9%
Kexes/diffie-hellman-group1-sha1-12 3.59ms ± 6%
Kexes/diffie-hellman-group14-sha1-12 22.1ms ±11%
Kexes/diffie-hellman-group14-sha256-12 21.6ms ± 8%
Kexes/diffie-hellman-group16-sha512-12 138ms ± 9%
name alloc/op
Kexes/diffie-hellman-group-exchange-sha256-12 67.8kB ± 1%
Kexes/diffie-hellman-group18-sha512-12 243kB ± 9%
Kexes/ecdh-sha2-nistp384-12 13.9kB ± 0%
Kexes/ecdh-sha2-nistp256-12 12.1kB ± 0%
Kexes/curve25519-sha256@libssh.org-12 8.22kB ± 0%
Kexes/ecdh-sha2-nistp521-12 16.5kB ± 0%
Kexes/curve25519-sha256-12 8.22kB ± 0%
Kexes/diffie-hellman-group-exchange-sha1-12 67.5kB ± 0%
Kexes/diffie-hellman-group1-sha1-12 34.9kB ± 0%
Kexes/diffie-hellman-group14-sha1-12 61.9kB ± 0%
Kexes/diffie-hellman-group14-sha256-12 62.0kB ± 0%
Kexes/diffie-hellman-group16-sha512-12 117kB ± 0%
name allocs/op
Kexes/diffie-hellman-group-exchange-sha256-12 314 ± 0%
Kexes/diffie-hellman-group18-sha512-12 271 ± 4%
Kexes/ecdh-sha2-nistp384-12 243 ± 0%
Kexes/ecdh-sha2-nistp256-12 213 ± 0%
Kexes/curve25519-sha256@libssh.org-12 168 ± 0%
Kexes/ecdh-sha2-nistp521-12 245 ± 0%
Kexes/curve25519-sha256-12 168 ± 0%
Kexes/diffie-hellman-group-exchange-sha1-12 314 ± 0%
Kexes/diffie-hellman-group1-sha1-12 255 ± 0%
Kexes/diffie-hellman-group14-sha1-12 255 ± 0%
Kexes/diffie-hellman-group14-sha256-12 255 ± 0%
Kexes/diffie-hellman-group16-sha512-12 256 ± 0%
Change-Id: Id119401fda7e417675325f37e3d442e70585206c
Reviewed-on: https://go-review.googlesource.com/c/crypto/+/506839
Run-TryBot: Filippo Valsorda <filippo@golang.org >
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Reviewed-by: David Chase <drchase@google.com >
Reviewed-by: Filippo Valsorda <filippo@golang.org >
2023-07-31 17:46:52 +00:00
Nicola Murino
ddfa82138e
ssh: ignore invalid MACs and KEXs just like we do for ciphers
...
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.
Fixes golang/go#39397
Change-Id: If90253ba89e1d8f732cc1e1c3d24fe0a1e2dac71
Reviewed-on: https://go-review.googlesource.com/c/crypto/+/512175
Run-TryBot: Han-Wen Nienhuys <hanwen@google.com >
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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 >
2023-07-31 15:35:32 +00:00
Nicola Murino
3f8f0645c2
ssh: prefer sha256 based RSA key algorithms
...
sha256 is more optimized than sha512 in Go and is secure enough
so prefer sha256 over sha512.
Change-Id: I3fcf7457791e3ef4539e97049aa905dcd293499d
Reviewed-on: https://go-review.googlesource.com/c/crypto/+/507556
Reviewed-by: Filippo Valsorda <filippo@golang.org >
Reviewed-by: Cherry Mui <cherryyz@google.com >
Run-TryBot: Filippo Valsorda <filippo@golang.org >
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Reviewed-by: Roland Shoemaker <roland@golang.org >
2023-07-14 16:27:34 +00:00
Nicola Murino
5df3b59941
ssh: disable client agent tests on Windows
...
ssh-agent is implemented as a Windows service and exposed on a
named pipe. We don't currently support it.
See golang/go#60981
Change-Id: Iebdc42db30b37a87ac0766231b16aff3f17b3f56
Reviewed-on: https://go-review.googlesource.com/c/crypto/+/509035
Run-TryBot: Heschi Kreinick <heschi@google.com >
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2023-07-13 13:29:36 +00:00
Boshi Lian
2e82bdd171
fix TestValidTerminalMode: missing output from echo SHELL $SHELL
...
add leading `echo` to have better compatibility
before
```
go test -run ^TestValidTerminalMode -v
=== RUN TestValidTerminalMode
session_test.go:261: echo SHELL $SHELL && stty -a && exit:
Last login: Thu Jul 6 12:24:38 2023 from 192.168.200.1
SHELL /bin/bashubuntu:~$
speed 38400 baud; rows 80; columns 40;
line = 0;
intr = ^C; quit = ^\; erase = ^?;
kill = ^U; eof = ^D; eol = <undef>;
eol2 = <undef>; swtch = <undef>;
start = ^Q; stop = ^S; susp = ^Z;
rprnt = ^R; werase = ^W; lnext = ^V;
discard = ^O; min = 1; time = 0;
-parenb -parodd -cmspar cs8 -hupcl
-cstopb cread -clocal -crtscts
-ignbrk -brkint -ignpar -parmrk -inpck
-istrip -inlcr -igncr icrnl ixon -ixoff
-iuclc -ixany -imaxbel -iutf8
opost -olcuc -ocrnl onlcr -onocr -onlret
-ofill -ofdel nl0 cr0 tab0 bs0 vt0 ff0
isig icanon iexten -echo echoe echok
-echonl -noflsh -xcase -tostop -echoprt
echoctl echoke -flusho -extproc
logout
session_test.go:266: missing output from echo SHELL $SHELL
```
after
```
go test -run ^TestValidTerminalMode -v
=== RUN TestValidTerminalMode
session_test.go:261: echo SHELL $SHELL && stty -a && exit:
Last login: Thu Jul 6 12:24:38 2023 from 192.168.200.1
bolian@ubuntu:~$
SHELL /bin/bash
speed 38400 baud; rows 80; columns 40;
line = 0;
intr = ^C; quit = ^\; erase = ^?;
kill = ^U; eof = ^D; eol = <undef>;
eol2 = <undef>; swtch = <undef>;
start = ^Q; stop = ^S; susp = ^Z;
rprnt = ^R; werase = ^W; lnext = ^V;
discard = ^O; min = 1; time = 0;
-parenb -parodd -cmspar cs8 -hupcl
-cstopb cread -clocal -crtscts
-ignbrk -brkint -ignpar -parmrk -inpck
-istrip -inlcr -igncr icrnl ixon -ixoff
-iuclc -ixany -imaxbel -iutf8
opost -olcuc -ocrnl onlcr -onocr -onlret
-ofill -ofdel nl0 cr0 tab0 bs0 vt0 ff0
isig icanon iexten -echo echoe echok
-echonl -noflsh -xcase -tostop -echoprt
echoctl echoke -flusho -extproc
logout
--- PASS: TestValidTerminalMode (0.06s)
```
Change-Id: If60c040edb8c78a7d86bf58a6be47636d9e8f173
GitHub-Last-Rev: a2cc1b1af09e47df82fcb8685d829dfed945e8b0
GitHub-Pull-Request: golang/crypto#264
Reviewed-on: https://go-review.googlesource.com/c/crypto/+/508115
Reviewed-by: Heschi Kreinick <heschi@google.com >
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Reviewed-by: Bryan Mills <bcmills@google.com >
2023-07-11 16:17:43 +00:00
Nicola Murino
64e0e99383
ssh: fix RSA certificate and public key authentication with older clients
...
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.
Fixes golang/go#53391
Change-Id: Id71f596f73d84efb5c76d6d5388432cccad3e3b1
Reviewed-on: https://go-review.googlesource.com/c/crypto/+/506835
Auto-Submit: Filippo Valsorda <filippo@golang.org >
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2023-07-10 19:57:54 +00:00
Nicola Murino
23b1b90df2
ssh: prefer sha256 based MAC algorithms
...
sha256 is more optimized than sha512 in Go and is secure enough
so prefer sha256 over sha512.
Fixes golang/go#61138
Change-Id: I7658808655367f1ab5f4ac8b52e6b20bd30ebf87
Reviewed-on: https://go-review.googlesource.com/c/crypto/+/507555
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TryBot-Result: Gopher Robot <gobot@golang.org >
Reviewed-by: Dmitri Shuralyov <dmitshur@google.com >
2023-07-05 20:33:07 +00:00
Stan Hu
64c3993f5c
ssh: add hmac-sha2-512
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This adds support for hmac-sha2-512 to ensure compatibility with SSH clients that request this MAC algorithm.
This rebases https://github.com/golang/crypto/pull/18 .
Change-Id: Ia103c10a8b7e2e8dde556d5c36550eb5fa6bc1f6
GitHub-Last-Rev: 987ccae2bc7ae5e90a482d8797351c39dcb9bf33
GitHub-Pull-Request: golang/crypto#257
Reviewed-on: https://go-review.googlesource.com/c/crypto/+/501455
Reviewed-by: Dmitri Shuralyov <dmitshur@google.com >
Commit-Queue: Han-Wen Nienhuys <hanwen@google.com >
Auto-Submit: Dmitri Shuralyov <dmitshur@google.com >
Reviewed-by: Han-Wen Nienhuys <hanwen@google.com >
Run-TryBot: Han-Wen Nienhuys <hanwen@google.com >
TryBot-Result: Gopher Robot <gobot@golang.org >
2023-06-22 14:36:59 +00:00
Bryan C. Mills
0ff60057bb
ssh/test: set a timeout and WaitDelay on sshd subcommands
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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 .
Fixes golang/go#60343 .
Change-Id: I7f79fcdb559498b987ee7689972ac53b83870aaf
Reviewed-on: https://go-review.googlesource.com/c/crypto/+/496935
Auto-Submit: Bryan Mills <bcmills@google.com >
TryBot-Result: Gopher Robot <gobot@golang.org >
Reviewed-by: Roland Shoemaker <roland@golang.org >
Run-TryBot: Bryan Mills <bcmills@google.com >
2023-06-15 16:06:57 +00:00
Stefan Klein
16222386f4
Add support for "hmac-sha2-512-etm@openssh.com"
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Change-Id: I0203881afd7ad72e68f76650817451d7e292c91b
GitHub-Last-Rev: 42b4119e1987e7a46aa06a2b142d5fd3ef6f216a
GitHub-Pull-Request: golang/crypto#129
Reviewed-on: https://go-review.googlesource.com/c/crypto/+/226982
Run-TryBot: Han-Wen Nienhuys <hanwen@google.com >
Reviewed-by: Han-Wen Nienhuys <hanwen@google.com >
Auto-Submit: Han-Wen Nienhuys <hanwen@google.com >
Reviewed-by: David Chase <drchase@google.com >
TryBot-Result: Gopher Robot <gobot@golang.org >
2023-06-05 16:42:04 +00:00
Tobias Klauser
3ef8056490
ssh/test: enable on solaris
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Change-Id: Icf9c867e64ef68f6f46dd7d4cec07cf7c315c2ad
Reviewed-on: https://go-review.googlesource.com/c/crypto/+/490155
Reviewed-by: Bryan Mills <bcmills@google.com >
Reviewed-by: Ian Lance Taylor <iant@google.com >
Run-TryBot: Tobias Klauser <tobias.klauser@gmail.com >
TryBot-Result: Gopher Robot <gobot@golang.org >
Auto-Submit: Tobias Klauser <tobias.klauser@gmail.com >
2023-05-04 16:27:40 +00:00
Tobias Klauser
a8cc953517
ssh: skip unsupported tests on wasip1
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Updates golang/go#32840
Updates golang/go#58141
Change-Id: Ib4425c1743d417920745205586af250dbf80c7e4
Reviewed-on: https://go-review.googlesource.com/c/crypto/+/485695
Auto-Submit: Tobias Klauser <tobias.klauser@gmail.com >
Reviewed-by: Bryan Mills <bcmills@google.com >
Run-TryBot: Tobias Klauser <tobias.klauser@gmail.com >
TryBot-Result: Gopher Robot <gobot@golang.org >
Reviewed-by: Ian Lance Taylor <iant@google.com >
2023-04-18 17:07:48 +00:00
Nicola Murino
Ilia Mirkin
Filippo Valsorda
cuishuang
samiponkanen
Mariano Cano
Andrew Lytvynov
Bryan C. Mills
Roland Shoemaker
Edoardo Spadolini
Will Mortensen
Pavel Repin
Heschi Kreinick
Randy Reddig
Matt Dainty
Dmitri Shuralyov
Sebastiaan van Stijn
Boshi Lian
Stan Hu
Stefan Klein
Tobias Klauser