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crypto: allocate less.

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The code in hash functions themselves could write directly into the
output buffer for a savings of about 50ns. But it's a little ugly so I
wasted a copy.

R=bradfitz
CC=golang-dev
https://golang.org/cl/5440111
This commit is contained in:
Adam Langley 2011-12-06 18:25:14 -05:00
parent bf59f081c1
commit 554ac03637
12 changed files with 87 additions and 66 deletions
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6
src/pkg/crypto/tls/handshake_server.go
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@ -234,9 +234,9 @@ FindCipherSuite:
return c.sendAlert(alertUnexpectedMessage)
}
digest := make([]byte, 36)
copy(digest[0:16], finishedHash.serverMD5.Sum(nil))
copy(digest[16:36], finishedHash.serverSHA1.Sum(nil))
digest := make([]byte, 0, 36)
digest = finishedHash.serverMD5.Sum(digest)
digest = finishedHash.serverSHA1.Sum(digest)
err = rsa.VerifyPKCS1v15(pub, crypto.MD5SHA1, digest, certVerify.signature)
if err != nil {
c.sendAlert(alertBadCertificate)