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crypto/tls: implement TLS 1.3 KeyLogWriter support

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Also, add support for the SSLKEYLOGFILE environment variable to the
tests, to simplify debugging of unexpected failures.

Updates #9671

Change-Id: I20a34a5824f083da93097b793d51e796d6eb302b
Reviewed-on: https://go-review.googlesource.com/c/147417
Run-TryBot: Filippo Valsorda <filippo@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Adam Langley <agl@golang.org>
This commit is contained in:
Filippo Valsorda 2018-11-03 18:13:05 -04:00
parent 14560da7e4
commit 29b01d556d
7 changed files with 106 additions and 6 deletions
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2
src/crypto/tls/handshake_client.go
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@ -524,7 +524,7 @@ func (hs *clientHandshakeState) doFullHandshake() error {
}
hs.masterSecret = masterFromPreMasterSecret(c.vers, hs.suite, preMasterSecret, hs.hello.random, hs.serverHello.random)
if err := c.config.writeKeyLog(hs.hello.random, hs.masterSecret); err != nil {
if err := c.config.writeKeyLog(keyLogLabelTLS12, hs.hello.random, hs.masterSecret); err != nil {
c.sendAlert(alertInternalError)
return errors.New("tls: failed to write to key log: " + err.Error())
}