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ssh: add hmac-sha2-512. #18

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ssh: add hmac-sha2-512. #18

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ddefabc
ssh: add hmac-sha2-512.
fbettag Mar 8, 2018
352aac6
ssh: moves hmac-sha2-512 after hmac-sha2-256.
fbettag Jul 12, 2018
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2 changes: 1 addition & 1 deletion ssh/common.go
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Original file line number Diff line number Diff line change
Expand Up @@ -67,7 +67,7 @@ var supportedHostKeyAlgos = []string{
// This is based on RFC 4253, section 6.4, but with hmac-md5 variants removed
// because they have reached the end of their useful life.
var supportedMACs = []string{
"[email protected]", "hmac-sha2-256", "hmac-sha1", "hmac-sha1-96",
"[email protected]", "hmac-sha2-256", "hmac-sha2-512", "hmac-sha1", "hmac-sha1-96",
}

var supportedCompressions = []string{compressionNone}
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4 changes: 4 additions & 0 deletions ssh/mac.go
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Original file line number Diff line number Diff line change
Expand Up @@ -10,6 +10,7 @@ import (
"crypto/hmac"
"crypto/sha1"
"crypto/sha256"
"crypto/sha512"
"hash"
)

Expand Down Expand Up @@ -49,6 +50,9 @@ var macModes = map[string]*macMode{
"[email protected]": {32, true, func(key []byte) hash.Hash {
return hmac.New(sha256.New, key)
}},
"hmac-sha2-512": {64, false, func(key []byte) hash.Hash {
return hmac.New(sha512.New, key)
}},
"hmac-sha2-256": {32, false, func(key []byte) hash.Hash {
return hmac.New(sha256.New, key)
}},
Expand Down