From 0c7b858b3eeb40d281e60e74486c7bf8177c9334 Mon Sep 17 00:00:00 2001
From: Mikkel Krautz <mikkel@krautz.dk>
Date: Sat, 18 Aug 2012 15:50:33 -0700
Subject: [PATCH] crypto/tls: explicitly require ExtKeyUsageClientAuth for
 client certs

If we aren't explicit about the KeyUsages, the verifier
will treat the certificate as a server certificate and require
it to have a ExtKeyUsageServerAuth key usage.

R=golang-dev
CC=golang-dev
https://golang.org/cl/6453148
---
 handshake_server.go | 1 +
 1 file changed, 1 insertion(+)

diff --git a/handshake_server.go b/handshake_server.go
index 76adc54..e5049a2 100644
--- a/handshake_server.go
+++ b/handshake_server.go
@@ -211,6 +211,7 @@ FindCipherSuite:
 				Roots:         c.config.ClientCAs,
 				CurrentTime:   c.config.time(),
 				Intermediates: x509.NewCertPool(),
+				KeyUsages:     []x509.ExtKeyUsage{x509.ExtKeyUsageClientAuth},
 			}
 
 			for i, cert := range certs {