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ssh: export supported algorithms

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Fixes golang/go#61537

Change-Id: If3478121e3ae445391e3faeceeb889d75e9e3214
Reviewed-on: https://go-review.googlesource.com/c/crypto/+/531935
LUCI-TryBot-Result: Go LUCI <golang-scoped@luci-project-accounts.iam.gserviceaccount.com>
Auto-Submit: Nicola Murino <nicola.murino@gmail.com>
Reviewed-by: Cherry Mui <cherryyz@google.com>
Reviewed-by: Michael Knyszek <mknyszek@google.com>
Reviewed-by: Filippo Valsorda <filippo@golang.org>
This commit is contained in:
Nicola Murino
2025-05-15 10:43:30 -07:00
committed by Gopher Robot
parent 9dbbcf002b
commit ac58737d25
23 changed files with 482 additions and 213 deletions
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ssh/server.go
+2 -2
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@@ -243,10 +243,10 @@ func NewServerConn(c net.Conn, config *ServerConfig) (*ServerConn, <-chan NewCha
fullConf.MaxAuthTries = 6
}
if len(fullConf.PublicKeyAuthAlgorithms) == 0 {
fullConf.PublicKeyAuthAlgorithms = supportedPubKeyAuthAlgos
fullConf.PublicKeyAuthAlgorithms = defaultPubKeyAuthAlgos
} else {
for _, algo := range fullConf.PublicKeyAuthAlgorithms {
if !contains(supportedPubKeyAuthAlgos, algo) {
if !contains(SupportedAlgorithms().PublicKeyAuths, algo) && !contains(InsecureAlgorithms().PublicKeyAuths, algo) {
c.Close()
return nil, nil, nil, fmt.Errorf("ssh: unsupported public key authentication algorithm %s", algo)
}