Commit Graph
18 Commits
Author SHA1 Message Date
cuishuang 0da2a6a1bb openpgp: fix function name in comment
Change-Id: Ic788ebe311fafa0f5d9750d5f7f25fb70dc0606d
Reviewed-on: https://go-review.googlesource.com/c/crypto/+/579175
Run-TryBot: shuang cui <imcusg@gmail.com>
Auto-Submit: Ian Lance Taylor <iant@google.com>
TryBot-Result: Gopher Robot <gobot@golang.org>
Reviewed-by: Ian Lance Taylor <iant@google.com>
LUCI-TryBot-Result: Go LUCI <golang-scoped@luci-project-accounts.iam.gserviceaccount.com>
Reviewed-by: Cherry Mui <cherryyz@google.com>
2024-04-16 17:48:22 +00:00
aviau 7c1a557ab9 openpgp: split up tests and keys
keys_test.go was slowing down my editor because it was getting too
large. It helps to remove the keys of the file as they contain extremely
long lines and large strings.

Change-Id: I8d193179ddc32438b7233f0f9ca8c57c928a0436
Reviewed-on: https://go-review.googlesource.com/c/138997
Reviewed-by: Filippo Valsorda <filippo@golang.org>
Run-TryBot: Filippo Valsorda <filippo@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
2018-10-09 21:39:50 +00:00
aviau f7f546618e openpgp: test subkeys with sub-optimal signature packet ordering
Test for RFC4880 5.2.3.3:
> An implementation that encounters multiple self-signatures on the
> same object may resolve the ambiguity in any way it sees fit, but it
> is RECOMMENDED that priority be given to the most recent self-
> signature.

Note: Some GPG implementation will reorder the packets for you when
 exporting keys. This makes it complicated to generate a key for this
 test. Should someone have to create a similar key again, look into
 gpgsplit, gpg --dearmor, and gpg --enarmor. These keys exist in the
 wild too.

Change-Id: I5d46054ebbc95407d644e4e462d777aab290794c
Reviewed-on: https://go-review.googlesource.com/138215
Run-TryBot: Filippo Valsorda <filippo@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Filippo Valsorda <filippo@golang.org>
2018-10-01 20:27:00 +00:00
aviau 0e37d00645 openpgp: don't treat extra subkey selfsigs as uid sigs
Consider the following packet ordering scenario:
    PUBKEY UID SELFSIG SUBKEY REV SELFSIG

In this scenario, addSubkey would only consume the REV signature after
the subkey, leaving SELFSIG to be read by ReadEntity, which in turn
would add the last SELFSIG to the UID's signatures, which is wrong to do
because this is a SUBKEY SELFSIG, not a UID signature.

Remove "current" from the ReadEntity scope, it should only be visible
to the UserId packet handling code.

Keep the warning about signature packets found before user id packets.
Without it, I would not have found this bug.

Modify addSubKey so that it consumes all signatures following the SUBKEY
packet, keeping eithier the first valid signature (like we did before)
or any valid revocation.

In a follow-up patch, we can improve this further by keeping the
most recent signature, as suggested by RFC4880:
> An implementation that encounters multiple self-signatures on the
> same object may resolve the ambiguity in any way it sees fit, but it
> is RECOMMENDED that priority be given to the most recent self-
> signature.

Fixes golang/go#26449

Change-Id: Id992676ef2363779a7028f4799180efb027fcf47
Reviewed-on: https://go-review.googlesource.com/118957
Reviewed-by: Filippo Valsorda <filippo@golang.org>
2018-09-10 18:16:07 +00:00
aviau 550ed51fee openpgp: fix bad error message
When failing, TestKeyExpiry would output the wrong expected key id. It
would output "Expected key 1ABB25A0" instead of "Expected key 96A672F5".

Avoid this mistake by declaring the variable only once and using it in
the error format.

Change-Id: I860d82bf2c7fa80558051cdb21a41d506e95c25f
Reviewed-on: https://go-review.googlesource.com/118958
Reviewed-by: Filippo Valsorda <filippo@golang.org>
Run-TryBot: Filippo Valsorda <filippo@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
2018-06-14 19:53:31 +00:00
aviau fd5f17ee72 openpgp: read keys with revoked user ids
The existing code was wrongly assuming that UserID packets must be
immediately followed by a Signature packet. However, this is not true.

See RFC4880 11.1:
> Immediately following each User ID packet, there are zero or more
> Signature packets.

This change will ensure that Entities that are not immediately followed
by a Signature packet are read without raising a StructuralError.
Instead, UserID packets that are not immediately followed by a self
signature will be ignored.

Maximum backwards compatibility is retained because revoked UserIDs are
not added to the Entity's identities.

In a follow-up patch, we should probably add these UserIDs to the
Entity's identities too, but not without making sure that the revocation
is also available in the Entity's (or the Identity's) Revocations slice.
This would require adding support for a new Signature Type,
"Certification revocation signature", as defined in RFC 48880 5.2.1.

Fixes golang/go#25850

Change-Id: Idde34b97429998f28e0c687171024e51ed959bf0
Reviewed-on: https://go-review.googlesource.com/118376
Reviewed-by: Filippo Valsorda <filippo@golang.org>
Run-TryBot: Filippo Valsorda <filippo@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
2018-06-14 17:48:26 +00:00
Ryan Canty da3eeb5d87 openpgp: sign Entity during instantiation in NewEntity
Previously if you created a new Entity then ran `Serialize` _before_ running `SerializePrivate`, the resulting armored public key was corrupted, giving the error of `unexpected EOF`. This fix signs the public key with the private key upon creation of a NewEntity. Since SerializePrivate only is applicable to entities created with NewEntity per the docs we can also safely remove the signing portion from that function.

Fixes #25463

Change-Id: I58b808987ee173079f33bce3d6c3527f9233b2cd
GitHub-Last-Rev: 2c4b8e4d630a06d782816f8fbd3d59f01ece2565
GitHub-Pull-Request: golang/crypto#47
Reviewed-on: https://go-review.googlesource.com/114001
Reviewed-by: Filippo Valsorda <filippo@golang.org>
2018-05-23 17:23:42 +00:00
Damien Tournoud 650f4a345a openpgp: allow NewEntity to specify the default cipher
The openpgp package promotes bad defaults by not setting the
preferred cipher and hash of new entities created by
`openpgp.NewEntity`.

The preferred hash can be set by passing a `packet.Config`
with a `DefaultHash` set, but the same cannot be done for
the preferred cipher.

This change copies the DefaultCipher into the self-signature, similar to
DefaultHash.

Change-Id: I80e1289d67b7cd4079be8c1d5ba603a555dbe5c1
Reviewed-on: https://go-review.googlesource.com/66430
Run-TryBot: Adam Langley <agl@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Adam Langley <agl@golang.org>
2018-02-14 00:00:28 +00:00
Yaron de Leeuw 3a6c3ce65c openpgp: correct NewEntity name creation
Confusingly, `Identity.Name` should actually refer to `uid.Id` and not
`uid.Name`. This fixes the code in NewEntity, and creates a test case to
verify.

Change-Id: Id46de876fc7b0359faecfeb9b09a8e454710d485
Reviewed-on: https://go-review.googlesource.com/92595
Reviewed-by: Adam Langley <agl@golang.org>
2018-02-13 22:19:55 +00:00
Russ Cox 8f297cd68b openpgp: check errors from ReadKeyRing during test
Otherwise if ReadKeyRing is buggy the errors point elsewhere.

Change-Id: Id2df4b6763ddf93fad5a9824f94af426bf0b7700
Reviewed-on: https://go-review.googlesource.com/62153
Reviewed-by: Adam Langley <agl@golang.org>
2017-09-09 19:24:44 +00:00
Joe Tsai 5b4074c2c4 all: fix some vet warnings
Change-Id: I85c2912a6862c6c251450f2a0926ecd33a9fb8e7
Reviewed-on: https://go-review.googlesource.com/34815
Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org>
Run-TryBot: Brad Fitzpatrick <bradfitz@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
2017-01-04 23:09:04 +00:00
Jessica Frazelle 119f50887f opengpg: set SelfSignature.PreferredHash in NewEntity
Say the user wants to create a NewEntity, then Serialize the private and public
keys. Then call Encrypt. The Hash used first for Encrypt will be `RIPEMD160`,
which is not compiled in by default. So say they _specifically_ pass
crypto.SHA256 as the Default hash to NewEntity, this should set the
PreferredHash in the SelfSignature so they can be encrypted with that hash.

Related to golang/go#12153

Change-Id: I3d89f9d60f9abb29ec8365f81da38b8cd0594587
Reviewed-on: https://go-review.googlesource.com/23209
Reviewed-by: Adam Langley <agl@golang.org>
2016-09-13 21:11:04 +00:00
KB Sriram c10c31b5e9 x/crypto/openpgp: cross-signature validation for signing subkeys.
Section 11.1 of RFC4880 requires that binding signatures on
signing subkeys contain a valid embedded signature that cross-certifies
the primary key. This is to avoid the weakness described at
https://www.gnupg.org/faq/subkey-cross-certify.html

Fixes #10740

Change-Id: Ibe039662497832945957b001a83080ba29213703
Reviewed-on: https://go-review.googlesource.com/9799
Reviewed-by: Adam Langley <agl@golang.org>
2015-05-31 18:57:27 +00:00
Keith Ball 326f0c56aa crypto/openpgp: select newest valid encryption subkey
Change-Id: I5ae662e95d9f0f0cbcbf0b15b6c7c52c51521cca
Reviewed-on: https://go-review.googlesource.com/8726
Reviewed-by: Adam Langley <agl@golang.org>
2015-05-31 17:36:15 +00:00
Andrew Gerrand a73c6bbfc5 go.crypto: use golang.org/x/... import paths
LGTM=bradfitz
R=rsc, bradfitz
CC=golang-codereviews
https://golang.org/cl/167190043
2014-11-10 08:50:25 +11:00
Adam Langley 84ca184138 go.crypto/openpgp: fix user id signing.
Entity.SignIdentity used the wrong signature function and produced invalid
certification signatures. Fixed.

VerifyUserIdSignature was used for checking the self-signature on an identity,
but didn't support anything but a self-signature. This change alters the
low-level API so that checking cross-signatures is possible.

Fixes golang/go#7371.

LGTM=bradfitz
R=bradfitz
CC=golang-codereviews
https://golang.org/cl/96240043
2014-05-12 11:23:48 -07:00
Adam Langley aa3adaf1aa go.crypto/openpgp: check for revoked keys.
R=agl
CC=golang-codereviews
https://golang.org/cl/95050043
2014-05-05 11:41:50 -07:00
Adam Langley eb19e229bd go.crypto/openpgp: don't select expired keys.
When selecting keys for encryption, don't select keys that have
expired.

Fixes golang/go#5808.

R=bradfitz
CC=golang-dev
https://golang.org/cl/10847043
2013-07-22 18:23:28 -04:00