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x/crypto/ssh: Add FingerprintLegacyMD5 and FingerprintSHA256 methods

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Implement a standards-compliant fingerprint format method (RFC 4716 section 4)
and a newer SHA256 fingerprint format method.

Fixes golang/go#12292

Change-Id: I4f3f8fc1d0a263cb3b0964d0078e69006a39d1a5
Reviewed-on: https://go-review.googlesource.com/32814
Reviewed-by: Han-Wen Nienhuys <hanwen@google.com>
Run-TryBot: Han-Wen Nienhuys <hanwen@google.com>
TryBot-Result: Gobot Gobot <gobot@golang.org>
This commit is contained in:
Ryuzo Yamamoto
2016-11-22 14:27:12 +00:00
committed by Han-Wen Nienhuys
parent 9477e0b78b
commit ede567c8e0
2 changed files with 43 additions and 0 deletions
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ssh/keys_test.go
+18
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@@ -454,3 +454,21 @@ func TestKnownHostsParsing(t *testing.T) {
}
}
}
func TestFingerprintLegacyMD5(t *testing.T) {
pub, _ := getTestKey()
fingerprint := FingerprintLegacyMD5(pub)
want := "fb:61:6d:1a:e3:f0:95:45:3c:a0:79:be:4a:93:63:66" // ssh-keygen -lf -E md5 rsa
if fingerprint != want {
t.Errorf("got fingerprint %q want %q", fingerprint, want)
}
}
func TestFingerprintSHA256(t *testing.T) {
pub, _ := getTestKey()
fingerprint := FingerprintSHA256(pub)
want := "SHA256:Anr3LjZK8YVpjrxu79myrW9Hrb/wpcMNpVvTq/RcBm8" // ssh-keygen -lf rsa
if fingerprint != want {
t.Errorf("got fingerprint %q want %q", fingerprint, want)
}
}