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Code Releases Activity

Remove SHA1 for support for ssh rsa signing (#31857)

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https://github.com/go-fed/httpsig seems to be unmaintained. 

Switch to github.com/42wim/httpsig which has removed deprecated crypto
and default sha256 signing for ssh rsa.

No impact for those that use ed25519 ssh certificates.

This is a breaking change for:
- gitea.com/gitea/tea (go-sdk) - I'll be sending a PR there too
- activitypub using deprecated crypto (is this actually used?)
This commit is contained in:
Wim
2024-09-08 00:05:18 +02:00
committed by GitHub
parent d8f3498875
commit 01dec7577a
8 changed files with 33 additions and 25 deletions
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4
services/auth/httpsign.go
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@@ -17,7 +17,7 @@ import (
"code.gitea.io/gitea/modules/log"
"code.gitea.io/gitea/modules/setting"
"github.com/go-fed/httpsig"
"github.com/42wim/httpsig"
"golang.org/x/crypto/ssh"
)
@@ -205,7 +205,7 @@ func doVerify(verifier httpsig.Verifier, sshPublicKeys []ssh.PublicKey) error {
case strings.HasPrefix(publicKey.Type(), "ssh-ed25519"):
algos = []httpsig.Algorithm{httpsig.ED25519}
case strings.HasPrefix(publicKey.Type(), "ssh-rsa"):
algos = []httpsig.Algorithm{httpsig.RSA_SHA1, httpsig.RSA_SHA256, httpsig.RSA_SHA512}
algos = []httpsig.Algorithm{httpsig.RSA_SHA256, httpsig.RSA_SHA512}
}
for _, algo := range algos {
if err := verifier.Verify(cryptoPubkey, algo); err == nil {