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crypto/tls: support session ticket resumption.

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Session resumption saves a round trip and removes the need to perform
the public-key operations of a TLS handshake when both the client and
server support it (which is true of Firefox and Chrome, at least).

R=golang-dev, bradfitz, rsc
CC=golang-dev
https://golang.org/cl/6555051
This commit is contained in:
Adam Langley 2012-09-24 16:52:43 -04:00
parent b7cbfe6ace
commit 65c7dc4ace
10 changed files with 1101 additions and 214 deletions
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5
src/pkg/crypto/tls/handshake_client.go
View file

@ -278,8 +278,9 @@ func (c *Conn) clientHandshake() error {
c.writeRecord(recordTypeHandshake, certVerify.marshal())
}
masterSecret, clientMAC, serverMAC, clientKey, serverKey, clientIV, serverIV :=
keysFromPreMasterSecret(c.vers, preMasterSecret, hello.random, serverHello.random, suite.macLen, suite.keyLen, suite.ivLen)
masterSecret := masterFromPreMasterSecret(c.vers, preMasterSecret, hello.random, serverHello.random)
clientMAC, serverMAC, clientKey, serverKey, clientIV, serverIV :=
keysFromMasterSecret(c.vers, masterSecret, hello.random, serverHello.random, suite.macLen, suite.keyLen, suite.ivLen)
clientCipher := suite.cipher(clientKey, clientIV, false /* not for reading */)
clientHash := suite.mac(c.vers, clientMAC)