Remove ourSigAlgs parameter to selectSignatureAlgorithm.

Now that the odd client/server split (a remnant from the original
crypto/tls code not handling signing-hash/PRF mismatches) is gone, it
can just be pulled from the config.

Change-Id: Idb46c026d6529a2afc2b43d4afedc0aa950614db
Reviewed-on: https://boringssl-review.googlesource.com/8723
Reviewed-by: David Benjamin <davidben@google.com>

ssl/test/runner/handshake_client.go

diff --git a/ssl/test/runner/handshake_client.go b/ssl/test/runner/handshake_client.go
index e45779c..d820001 100644
--- a/ssl/test/runner/handshake_client.go
+++ b/ssl/test/runner/handshake_client.go
@@ -768,7 +768,7 @@
 		privKey := c.config.Certificates[0].PrivateKey
 
 		if certVerify.hasSignatureAlgorithm {
-			certVerify.signatureAlgorithm, err = selectSignatureAlgorithm(c.vers, privKey, c.config, certReq.signatureAlgorithms, c.config.signSignatureAlgorithms())
+			certVerify.signatureAlgorithm, err = selectSignatureAlgorithm(c.vers, privKey, c.config, certReq.signatureAlgorithms)
 			if err != nil {
 				c.sendAlert(alertInternalError)
 				return err
@@ -1254,7 +1254,7 @@
 		// Ensure the private key supports one of the advertised
 		// signature algorithms.
 		if certReq.hasSignatureAlgorithm {
-			if _, err := selectSignatureAlgorithm(c.vers, chain.PrivateKey, c.config, certReq.signatureAlgorithms, c.config.signSignatureAlgorithms()); err != nil {
+			if _, err := selectSignatureAlgorithm(c.vers, chain.PrivateKey, c.config, certReq.signatureAlgorithms); err != nil {
 				continue
 			}
 		}

ssl/test/runner/key_agreement.go

diff --git a/ssl/test/runner/key_agreement.go b/ssl/test/runner/key_agreement.go
index 9b65fcb..9a6ba41 100644
--- a/ssl/test/runner/key_agreement.go
+++ b/ssl/test/runner/key_agreement.go
@@ -64,7 +64,7 @@
 
 	var sigAlg signatureAlgorithm
 	if ka.version >= VersionTLS12 {
-		sigAlg, err = selectSignatureAlgorithm(ka.version, cert.PrivateKey, config, clientHello.signatureAlgorithms, config.signSignatureAlgorithms())
+		sigAlg, err = selectSignatureAlgorithm(ka.version, cert.PrivateKey, config, clientHello.signatureAlgorithms)
 		if err != nil {
 			return nil, err
 		}
@@ -404,7 +404,7 @@
 	var sigAlg signatureAlgorithm
 	var err error
 	if ka.version >= VersionTLS12 {
-		sigAlg, err = selectSignatureAlgorithm(ka.version, cert.PrivateKey, config, clientHello.signatureAlgorithms, config.signSignatureAlgorithms())
+		sigAlg, err = selectSignatureAlgorithm(ka.version, cert.PrivateKey, config, clientHello.signatureAlgorithms)
 		if err != nil {
 			return nil, err
 		}

ssl/test/runner/sign.go

diff --git a/ssl/test/runner/sign.go b/ssl/test/runner/sign.go
index 265f8d0..1d95c6a 100644
--- a/ssl/test/runner/sign.go
+++ b/ssl/test/runner/sign.go
@@ -25,7 +25,7 @@
 	verifyMessage(key crypto.PublicKey, msg, sig []byte) error
 }
 
-func selectSignatureAlgorithm(version uint16, key crypto.PrivateKey, config *Config, peerSigAlgs, ourSigAlgs []signatureAlgorithm) (signatureAlgorithm, error) {
+func selectSignatureAlgorithm(version uint16, key crypto.PrivateKey, config *Config, peerSigAlgs []signatureAlgorithm) (signatureAlgorithm, error) {
 	// If the client didn't specify any signature_algorithms extension then
 	// we can assume that it supports SHA1. See
 	// http://tools.ietf.org/html/rfc5246#section-7.4.1.4.1
@@ -33,7 +33,7 @@
 		peerSigAlgs = []signatureAlgorithm{signatureRSAPKCS1WithSHA1, signatureECDSAWithSHA1}
 	}
 
-	for _, sigAlg := range ourSigAlgs {
+	for _, sigAlg := range config.signSignatureAlgorithms() {
 		if !isSupportedSignatureAlgorithm(sigAlg, peerSigAlgs) {
 			continue
 		}