Implement crypto signature verification routines using OpenSSL.

extensions/browser/api/cast_channel/cast_auth_util_unittest.cc

Index: extensions/browser/api/cast_channel/cast_auth_util_unittest.cc
diff --git a/extensions/browser/api/cast_channel/cast_auth_util_unittest.cc b/extensions/browser/api/cast_channel/cast_auth_util_unittest.cc
new file mode 100644
index 0000000000000000000000000000000000000000..0e3bcd338624bd1ac17a280a474ed2a6aa1d00d5
--- /dev/null
+++ b/extensions/browser/api/cast_channel/cast_auth_util_unittest.cc
@@ -0,0 +1,395 @@
+// Copyright 2014 The Chromium Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+#include "extensions/browser/api/cast_channel/cast_auth_util.h"
+
+#include <string>
+
+#include "base/macros.h"
+#include "extensions/common/api/cast_channel/cast_channel.pb.h"
+#include "testing/gtest/include/gtest/gtest.h"
+
+namespace extensions {
+namespace core_api {
+namespace cast_channel {
+namespace {
+
+const unsigned char kIntermediateCertificate[] = {
+  0x30, 0x82, 0x03, 0x87, 0x30, 0x82, 0x02, 0x6f, 0xa0, 0x03,
+  0x02, 0x01, 0x02, 0x02, 0x01, 0x01, 0x30, 0x0d, 0x06, 0x09,
+  0x2a, 0x86, 0x48, 0x86, 0xf7, 0x0d, 0x01, 0x01, 0x05, 0x05,
+  0x00, 0x30, 0x7c, 0x31, 0x0b, 0x30, 0x09, 0x06, 0x03, 0x55,
+  0x04, 0x06, 0x13, 0x02, 0x55, 0x53, 0x31, 0x13, 0x30, 0x11,
+  0x06, 0x03, 0x55, 0x04, 0x08, 0x0c, 0x0a, 0x43, 0x61, 0x6c,
+  0x69, 0x66, 0x6f, 0x72, 0x6e, 0x69, 0x61, 0x31, 0x16, 0x30,
+  0x14, 0x06, 0x03, 0x55, 0x04, 0x07, 0x0c, 0x0d, 0x4d, 0x6f,
+  0x75, 0x6e, 0x74, 0x61, 0x69, 0x6e, 0x20, 0x56, 0x69, 0x65,
+  0x77, 0x31, 0x13, 0x30, 0x11, 0x06, 0x03, 0x55, 0x04, 0x0a,
+  0x0c, 0x0a, 0x47, 0x6f, 0x6f, 0x67, 0x6c, 0x65, 0x20, 0x49,
+  0x6e, 0x63, 0x31, 0x12, 0x30, 0x10, 0x06, 0x03, 0x55, 0x04,
+  0x0b, 0x0c, 0x09, 0x47, 0x6f, 0x6f, 0x67, 0x6c, 0x65, 0x20,
+  0x54, 0x56, 0x31, 0x17, 0x30, 0x15, 0x06, 0x03, 0x55, 0x04,
+  0x03, 0x0c, 0x0e, 0x45, 0x75, 0x72, 0x65, 0x6b, 0x61, 0x20,
+  0x52, 0x6f, 0x6f, 0x74, 0x20, 0x43, 0x41, 0x30, 0x1e, 0x17,
+  0x0d, 0x31, 0x32, 0x31, 0x32, 0x31, 0x39, 0x30, 0x30, 0x34,
+  0x37, 0x31, 0x32, 0x5a, 0x17, 0x0d, 0x33, 0x32, 0x31, 0x32,
+  0x31, 0x34, 0x30, 0x30, 0x34, 0x37, 0x31, 0x32, 0x5a, 0x30,
+  0x7d, 0x31, 0x0b, 0x30, 0x09, 0x06, 0x03, 0x55, 0x04, 0x06,
+  0x13, 0x02, 0x55, 0x53, 0x31, 0x13, 0x30, 0x11, 0x06, 0x03,
+  0x55, 0x04, 0x08, 0x0c, 0x0a, 0x43, 0x61, 0x6c, 0x69, 0x66,
+  0x6f, 0x72, 0x6e, 0x69, 0x61, 0x31, 0x16, 0x30, 0x14, 0x06,
+  0x03, 0x55, 0x04, 0x07, 0x0c, 0x0d, 0x4d, 0x6f, 0x75, 0x6e,
+  0x74, 0x61, 0x69, 0x6e, 0x20, 0x56, 0x69, 0x65, 0x77, 0x31,
+  0x13, 0x30, 0x11, 0x06, 0x03, 0x55, 0x04, 0x0a, 0x0c, 0x0a,
+  0x47, 0x6f, 0x6f, 0x67, 0x6c, 0x65, 0x20, 0x49, 0x6e, 0x63,
+  0x31, 0x12, 0x30, 0x10, 0x06, 0x03, 0x55, 0x04, 0x0b, 0x0c,
+  0x09, 0x47, 0x6f, 0x6f, 0x67, 0x6c, 0x65, 0x20, 0x54, 0x56,
+  0x31, 0x18, 0x30, 0x16, 0x06, 0x03, 0x55, 0x04, 0x03, 0x0c,
+  0x0f, 0x45, 0x75, 0x72, 0x65, 0x6b, 0x61, 0x20, 0x47, 0x65,
+  0x6e, 0x31, 0x20, 0x49, 0x43, 0x41, 0x30, 0x82, 0x01, 0x22,
+  0x30, 0x0d, 0x06, 0x09, 0x2a, 0x86, 0x48, 0x86, 0xf7, 0x0d,
+  0x01, 0x01, 0x01, 0x05, 0x00, 0x03, 0x82, 0x01, 0x0f, 0x00,
+  0x30, 0x82, 0x01, 0x0a, 0x02, 0x82, 0x01, 0x01, 0x00, 0xbc,
+  0x22, 0x80, 0xbd, 0x80, 0xf6, 0x3a, 0x21, 0x00, 0x3b, 0xae,
+  0x76, 0x5e, 0x35, 0x7f, 0x3d, 0xc3, 0x64, 0x5c, 0x55, 0x94,
+  0x86, 0x34, 0x2f, 0x05, 0x87, 0x28, 0xcd, 0xf7, 0x69, 0x8c,
+  0x17, 0xb3, 0x50, 0xa7, 0xb8, 0x82, 0xfa, 0xdf, 0xc7, 0x43,
+  0x2d, 0xd6, 0x7e, 0xab, 0xa0, 0x6f, 0xb7, 0x13, 0x72, 0x80,
+  0xa4, 0x47, 0x15, 0xc1, 0x20, 0x99, 0x50, 0xcd, 0xec, 0x14,
+  0x62, 0x09, 0x5b, 0xa4, 0x98, 0xcd, 0xd2, 0x41, 0xb6, 0x36,
+  0x4e, 0xff, 0xe8, 0x2e, 0x32, 0x30, 0x4a, 0x81, 0xa8, 0x42,
+  0xa3, 0x6c, 0x9b, 0x33, 0x6e, 0xca, 0xb2, 0xf5, 0x53, 0x66,
+  0xe0, 0x27, 0x53, 0x86, 0x1a, 0x85, 0x1e, 0xa7, 0x39, 0x3f,
+  0x4a, 0x77, 0x8e, 0xfb, 0x54, 0x66, 0x66, 0xfb, 0x58, 0x54,
+  0xc0, 0x5e, 0x39, 0xc7, 0xf5, 0x50, 0x06, 0x0b, 0xe0, 0x8a,
+  0xd4, 0xce, 0xe1, 0x6a, 0x55, 0x1f, 0x8b, 0x17, 0x00, 0xe6,
+  0x69, 0xa3, 0x27, 0xe6, 0x08, 0x25, 0x69, 0x3c, 0x12, 0x9d,
+  0x8d, 0x05, 0x2c, 0xd6, 0x2e, 0xa2, 0x31, 0xde, 0xb4, 0x52,
+  0x50, 0xd6, 0x20, 0x49, 0xde, 0x71, 0xa0, 0xf9, 0xad, 0x20,
+  0x40, 0x12, 0xf1, 0xdd, 0x25, 0xeb, 0xd5, 0xe6, 0xb8, 0x36,
+  0xf4, 0xd6, 0x8f, 0x7f, 0xca, 0x43, 0xdc, 0xd7, 0x10, 0x5b,
+  0xe6, 0x3f, 0x51, 0x8a, 0x85, 0xb3, 0xf3, 0xff, 0xf6, 0x03,
+  0x2d, 0xcb, 0x23, 0x4f, 0x9c, 0xad, 0x18, 0xe7, 0x93, 0x05,
+  0x8c, 0xac, 0x52, 0x9a, 0xf7, 0x4c, 0xe9, 0x99, 0x7a, 0xbe,
+  0x6e, 0x7e, 0x4d, 0x0a, 0xe3, 0xc6, 0x1c, 0xa9, 0x93, 0xfa,
+  0x3a, 0xa5, 0x91, 0x5d, 0x1c, 0xbd, 0x66, 0xeb, 0xcc, 0x60,
+  0xdc, 0x86, 0x74, 0xca, 0xcf, 0xf8, 0x92, 0x1c, 0x98, 0x7d,
+  0x57, 0xfa, 0x61, 0x47, 0x9e, 0xab, 0x80, 0xb7, 0xe4, 0x48,
+  0x80, 0x2a, 0x92, 0xc5, 0x1b, 0x02, 0x03, 0x01, 0x00, 0x01,
+  0xa3, 0x13, 0x30, 0x11, 0x30, 0x0f, 0x06, 0x03, 0x55, 0x1d,
+  0x13, 0x04, 0x08, 0x30, 0x06, 0x01, 0x01, 0xff, 0x02, 0x01,
+  0x01, 0x30, 0x0d, 0x06, 0x09, 0x2a, 0x86, 0x48, 0x86, 0xf7,
+  0x0d, 0x01, 0x01, 0x05, 0x05, 0x00, 0x03, 0x82, 0x01, 0x01,
+  0x00, 0x8b, 0xd4, 0xa1, 0xb1, 0xcf, 0x5d, 0xcd, 0x7b, 0x6c,
+  0x48, 0x4a, 0x41, 0x1f, 0x53, 0x2f, 0x18, 0x2d, 0x32, 0x45,
+  0xff, 0x9e, 0xab, 0xd3, 0x73, 0x3e, 0x1f, 0x22, 0xd7, 0xea,
+  0xfa, 0x01, 0xe6, 0x73, 0x03, 0x0f, 0x2b, 0xc6, 0x25, 0xbb,
+  0xa5, 0xee, 0xc5, 0xf5, 0x45, 0xcb, 0x24, 0x12, 0x2a, 0xad,
+  0xc2, 0x5d, 0x05, 0xf4, 0x7a, 0xf5, 0xc2, 0x9b, 0x10, 0x16,
+  0x5a, 0xd1, 0x0a, 0x73, 0xc5, 0x16, 0x39, 0xa0, 0x10, 0xca,
+  0xd1, 0x68, 0x85, 0x9e, 0xfb, 0x9e, 0x26, 0x83, 0x8e, 0x58,
+  0xf3, 0x77, 0xa0, 0x4e, 0xe5, 0xdb, 0x97, 0xbe, 0x2d, 0x00,
+  0x5f, 0xf5, 0x94, 0xdb, 0xb1, 0x9d, 0x65, 0x6b, 0xfd, 0xf0,
+  0xd1, 0x04, 0x51, 0xdf, 0xcc, 0x92, 0xa6, 0x99, 0x2d, 0x71,
+  0xf5, 0x4d, 0xd5, 0x23, 0xfe, 0x33, 0x1c, 0xa9, 0xb4, 0xab,
+  0xc5, 0xbf, 0x1a, 0xb8, 0xd1, 0x80, 0xef, 0x89, 0xc9, 0xe2,
+  0x1f, 0x9c, 0x4c, 0x48, 0x3b, 0xa2, 0xfa, 0x02, 0x0a, 0xdc,
+  0x84, 0x01, 0x8a, 0x87, 0x02, 0xfb, 0x59, 0xee, 0xa7, 0x4c,
+  0x04, 0x7d, 0x74, 0x99, 0x87, 0x6a, 0x25, 0x44, 0xad, 0x16,
+  0xaa, 0xec, 0x4e, 0x35, 0x1b, 0x7c, 0x7b, 0x84, 0xc9, 0xb1,
+  0x3f, 0xe1, 0x82, 0x70, 0xe5, 0x0d, 0xe7, 0xd9, 0x6d, 0xfa,
+  0x95, 0xb6, 0xc5, 0xe4, 0x1e, 0xe8, 0x11, 0x9b, 0xd8, 0xb2,
+  0xf3, 0xa4, 0xfd, 0x13, 0xf3, 0x83, 0x4f, 0xf7, 0x07, 0x14,
+  0x20, 0xbb, 0x22, 0xa5, 0xa6, 0x8f, 0xd6, 0xb5, 0xdb, 0xa9,
+  0x74, 0x78, 0xe2, 0x93, 0x0d, 0xe5, 0x23, 0x2f, 0x05, 0x17,
+  0xe0, 0xb2, 0x97, 0x67, 0x34, 0x4d, 0x0f, 0x9c, 0x76, 0x43,
+  0x7b, 0xa6, 0x21, 0x4a, 0x56, 0x05, 0xf6, 0x2a, 0x7c, 0xf2,
+  0x7f, 0x12, 0x94, 0x82, 0x26, 0x29, 0x07, 0xf0, 0x0b, 0x6c,
+  0x6c, 0x79, 0x14, 0xb0, 0x74, 0xd5, 0x6c,
+};
+
+const unsigned char kClientAuthCertificate[] = {
+  0x30, 0x82, 0x03, 0x7a, 0x30, 0x82, 0x02, 0x62, 0x02, 0x04,
+  0x51, 0x1d, 0x0e, 0xe2, 0x30, 0x0d, 0x06, 0x09, 0x2a, 0x86,
+  0x48, 0x86, 0xf7, 0x0d, 0x01, 0x01, 0x05, 0x05, 0x00, 0x30,
+  0x7d, 0x31, 0x0b, 0x30, 0x09, 0x06, 0x03, 0x55, 0x04, 0x06,
+  0x13, 0x02, 0x55, 0x53, 0x31, 0x13, 0x30, 0x11, 0x06, 0x03,
+  0x55, 0x04, 0x08, 0x0c, 0x0a, 0x43, 0x61, 0x6c, 0x69, 0x66,
+  0x6f, 0x72, 0x6e, 0x69, 0x61, 0x31, 0x16, 0x30, 0x14, 0x06,
+  0x03, 0x55, 0x04, 0x07, 0x0c, 0x0d, 0x4d, 0x6f, 0x75, 0x6e,
+  0x74, 0x61, 0x69, 0x6e, 0x20, 0x56, 0x69, 0x65, 0x77, 0x31,
+  0x13, 0x30, 0x11, 0x06, 0x03, 0x55, 0x04, 0x0a, 0x0c, 0x0a,
+  0x47, 0x6f, 0x6f, 0x67, 0x6c, 0x65, 0x20, 0x49, 0x6e, 0x63,
+  0x31, 0x12, 0x30, 0x10, 0x06, 0x03, 0x55, 0x04, 0x0b, 0x0c,
+  0x09, 0x47, 0x6f, 0x6f, 0x67, 0x6c, 0x65, 0x20, 0x54, 0x56,
+  0x31, 0x18, 0x30, 0x16, 0x06, 0x03, 0x55, 0x04, 0x03, 0x0c,
+  0x0f, 0x45, 0x75, 0x72, 0x65, 0x6b, 0x61, 0x20, 0x47, 0x65,
+  0x6e, 0x31, 0x20, 0x49, 0x43, 0x41, 0x30, 0x1e, 0x17, 0x0d,
+  0x31, 0x33, 0x30, 0x32, 0x31, 0x34, 0x31, 0x36, 0x32, 0x30,
+  0x35, 0x30, 0x5a, 0x17, 0x0d, 0x33, 0x33, 0x30, 0x32, 0x30,
+  0x39, 0x31, 0x36, 0x32, 0x30, 0x35, 0x30, 0x5a, 0x30, 0x77,
+  0x31, 0x12, 0x30, 0x10, 0x06, 0x03, 0x55, 0x04, 0x0b, 0x13,
+  0x09, 0x47, 0x6f, 0x6f, 0x67, 0x6c, 0x65, 0x20, 0x54, 0x56,
+  0x31, 0x0b, 0x30, 0x09, 0x06, 0x03, 0x55, 0x04, 0x06, 0x13,
+  0x02, 0x55, 0x53, 0x31, 0x13, 0x30, 0x11, 0x06, 0x03, 0x55,
+  0x04, 0x08, 0x13, 0x0a, 0x43, 0x61, 0x6c, 0x69, 0x66, 0x6f,
+  0x72, 0x6e, 0x69, 0x61, 0x31, 0x13, 0x30, 0x11, 0x06, 0x03,
+  0x55, 0x04, 0x0a, 0x13, 0x0a, 0x47, 0x6f, 0x6f, 0x67, 0x6c,
+  0x65, 0x20, 0x49, 0x6e, 0x63, 0x31, 0x16, 0x30, 0x14, 0x06,
+  0x03, 0x55, 0x04, 0x07, 0x13, 0x0d, 0x4d, 0x6f, 0x75, 0x6e,
+  0x74, 0x61, 0x69, 0x6e, 0x20, 0x56, 0x69, 0x65, 0x77, 0x31,
+  0x12, 0x30, 0x10, 0x06, 0x03, 0x55, 0x04, 0x03, 0x14, 0x09,
+  0x65, 0x76, 0x74, 0x5f, 0x65, 0x31, 0x32, 0x36, 0x36, 0x30,
+  0x82, 0x01, 0x22, 0x30, 0x0d, 0x06, 0x09, 0x2a, 0x86, 0x48,
+  0x86, 0xf7, 0x0d, 0x01, 0x01, 0x01, 0x05, 0x00, 0x03, 0x82,
+  0x01, 0x0f, 0x00, 0x30, 0x82, 0x01, 0x0a, 0x02, 0x82, 0x01,
+  0x01, 0x00, 0xb8, 0x7d, 0x8a, 0x50, 0xfc, 0x58, 0xf2, 0x03,
+  0x67, 0x7f, 0x9f, 0xe4, 0xab, 0xd0, 0xd6, 0xd2, 0xd5, 0x8a,
+  0x7e, 0x30, 0x26, 0x4c, 0x54, 0xd1, 0xd0, 0xd4, 0x40, 0x92,
+  0x6c, 0x7d, 0x18, 0x78, 0xe3, 0x96, 0xc1, 0x0d, 0xd6, 0x7d,
+  0xca, 0x20, 0x32, 0x51, 0x30, 0xb5, 0x51, 0xcc, 0xe5, 0x21,
+  0xf1, 0x61, 0x20, 0x5f, 0x18, 0x60, 0x42, 0x94, 0x8d, 0x8b,
+  0x4c, 0x7a, 0x3f, 0xea, 0x11, 0xf6, 0x5a, 0xa0, 0x17, 0x60,
+  0x7b, 0x55, 0xcf, 0x96, 0x6e, 0x59, 0xaa, 0x0a, 0xd7, 0x3c,
+  0x69, 0xd9, 0x9d, 0x24, 0x4b, 0xc2, 0xde, 0xc1, 0x4c, 0xaa,
+  0x14, 0xd3, 0x77, 0xa9, 0x7a, 0x94, 0x68, 0x79, 0x73, 0xb3,
+  0xf5, 0x09, 0x28, 0xfc, 0x18, 0x20, 0xbd, 0xef, 0xf5, 0xf0,
+  0xf8, 0xd3, 0x53, 0x9e, 0x5f, 0x55, 0xcb, 0x11, 0xab, 0xea,
+  0x7b, 0xfe, 0x21, 0x44, 0x30, 0x2a, 0xd4, 0x46, 0x06, 0xd5,
+  0x26, 0xd9, 0xb9, 0xa8, 0xc6, 0x8a, 0xc8, 0x3a, 0x93, 0xef,
+  0xe8, 0xa0, 0x48, 0xb9, 0x41, 0x26, 0x69, 0x3e, 0x84, 0x36,
+  0x20, 0xeb, 0xc7, 0x1d, 0x6e, 0xc7, 0xd6, 0x1e, 0x4d, 0x2d,
+  0xe2, 0x56, 0x25, 0xcf, 0xf3, 0x03, 0xb1, 0xc8, 0x47, 0x53,
+  0x63, 0xe9, 0x0f, 0x67, 0x34, 0x12, 0xd3, 0x50, 0xea, 0xb3,
+  0x0a, 0x43, 0xc4, 0x3f, 0x5a, 0xbe, 0xd2, 0x88, 0x7e, 0xc8,
+  0x02, 0xc7, 0xf7, 0x21, 0x31, 0xab, 0x62, 0xbd, 0xb1, 0x17,
+  0xa9, 0x77, 0x80, 0x7d, 0x95, 0x6f, 0x66, 0x33, 0x82, 0xc1,
+  0x2f, 0xaa, 0x72, 0xb7, 0xbf, 0x23, 0xef, 0x93, 0x04, 0x33,
+  0x29, 0xc0, 0x68, 0x3f, 0x39, 0xaa, 0x35, 0x23, 0x8a, 0xbe,
+  0x07, 0x2d, 0x96, 0x80, 0x13, 0x81, 0x33, 0x6c, 0xb4, 0xca,
+  0x77, 0xa1, 0xca, 0x0d, 0xd4, 0x6a, 0xd6, 0xf3, 0xc7, 0x81,
+  0xcd, 0x38, 0xc6, 0xf1, 0xf5, 0xd0, 0x1a, 0x85, 0x02, 0x03,
+  0x01, 0x00, 0x01, 0xa3, 0x0d, 0x30, 0x0b, 0x30, 0x09, 0x06,
+  0x03, 0x55, 0x1d, 0x13, 0x04, 0x02, 0x30, 0x00, 0x30, 0x0d,
+  0x06, 0x09, 0x2a, 0x86, 0x48, 0x86, 0xf7, 0x0d, 0x01, 0x01,
+  0x05, 0x05, 0x00, 0x03, 0x82, 0x01, 0x01, 0x00, 0x4a, 0xb0,
+  0xb2, 0xb3, 0x3c, 0x3c, 0x64, 0x80, 0x4d, 0xc0, 0x4a, 0x4f,
+  0xc2, 0xb7, 0x8c, 0xb2, 0x8b, 0x6a, 0x9a, 0x0a, 0x44, 0xbc,
+  0x28, 0x1c, 0x61, 0xb0, 0x4f, 0xd5, 0x85, 0x36, 0x5f, 0xe9,
+  0xa1, 0x66, 0x83, 0x6f, 0xd9, 0x88, 0x49, 0x30, 0x7a, 0x64,
+  0x7c, 0x20, 0x20, 0xb7, 0x71, 0xa9, 0xcd, 0x13, 0x5a, 0x2e,
+  0xfd, 0xdc, 0xa6, 0x04, 0x80, 0xc3, 0xa0, 0xa4, 0x71, 0xfd,
+  0xd5, 0x96, 0x80, 0x24, 0x30, 0xea, 0xd6, 0x3a, 0x7a, 0x67,
+  0xa9, 0xb2, 0xfc, 0x8d, 0xdf, 0x4e, 0xe1, 0x5d, 0x5d, 0x92,
+  0xc6, 0xc1, 0xc9, 0x87, 0x9a, 0xde, 0x92, 0xa1, 0x78, 0x3e,
+  0xb9, 0x30, 0xa4, 0x1d, 0xb7, 0x9b, 0xc3, 0x5f, 0x05, 0x48,
+  0x37, 0x9c, 0x2a, 0xd0, 0x28, 0x5f, 0xf1, 0x54, 0xf6, 0xa7,
+  0x71, 0x54, 0xbe, 0xf3, 0x1a, 0x0b, 0x4b, 0x07, 0x8c, 0xaf,
+  0xa0, 0x3d, 0x44, 0x3a, 0xac, 0x7b, 0x69, 0x12, 0x2c, 0xeb,
+  0x17, 0x9b, 0x96, 0x23, 0x99, 0xf0, 0xae, 0x07, 0xbc, 0x13,
+  0x46, 0x7d, 0xb2, 0x0a, 0xeb, 0x92, 0xa8, 0x0f, 0xa7, 0x31,
+  0xe6, 0xce, 0x66, 0xf3, 0xf6, 0xf4, 0xd7, 0xeb, 0xbd, 0x89,
+  0xed, 0xa3, 0xcf, 0x08, 0xc7, 0xad, 0xfe, 0x09, 0x89, 0x0a,
+  0xf3, 0x27, 0x70, 0x6d, 0x84, 0x34, 0xff, 0x0e, 0xe1, 0xf0,
+  0x6f, 0x4a, 0x53, 0x46, 0x1d, 0x24, 0x12, 0x0c, 0x0a, 0x38,
+  0xfa, 0xec, 0x73, 0x55, 0xe2, 0x3f, 0xd8, 0xfb, 0x8a, 0xb4,
+  0x09, 0xb2, 0xe3, 0xdd, 0x76, 0x82, 0x6e, 0xce, 0x6e, 0xaa,
+  0x15, 0xe2, 0x41, 0x6a, 0x67, 0x06, 0x16, 0x59, 0xf6, 0x07,
+  0xef, 0xe2, 0x0b, 0x5d, 0x1c, 0x43, 0x0d, 0x65, 0x32, 0x7b,
+  0x08, 0x03, 0x67, 0xe8, 0xb6, 0xec, 0xf7, 0xd2, 0x17, 0xef,
+  0xe0, 0x79, 0x1c, 0xf0, 0x8b, 0xfd, 0xce, 0x09, 0x3e, 0xaa,
+  0x3d, 0x25, 0xd7, 0xd1,
+};
+
+const unsigned char kSignature[] = {
+  0x76, 0x93, 0x7f, 0x8e, 0x3e, 0x8f, 0x77, 0x64, 0x33, 0xb4,
+  0x6d, 0x09, 0xf5, 0x38, 0xa2, 0xde, 0x1b, 0xaa, 0x3e, 0x1f,
+  0xfc, 0x5c, 0xd7, 0x17, 0xaa, 0x28, 0x2a, 0xf3, 0x9f, 0x76,
+  0xa1, 0x4e, 0x41, 0xab, 0xd2, 0x03, 0xf2, 0x63, 0xf6, 0x24,
+  0x61, 0x97, 0xc0, 0x8a, 0xde, 0x11, 0x2e, 0x72, 0xff, 0x98,
+  0xeb, 0xd8, 0x18, 0xd5, 0x75, 0x91, 0xcd, 0x08, 0x43, 0x84,
+  0xe2, 0xc4, 0x1e, 0x7c, 0xe4, 0x9e, 0xeb, 0xe8, 0x09, 0x45,
+  0xe5, 0x6d, 0x62, 0x37, 0x02, 0xeb, 0xfc, 0x0a, 0x12, 0xf5,
+  0x91, 0x19, 0x4c, 0x17, 0xfa, 0x5e, 0x2d, 0x4b, 0x80, 0xb9,
+  0x1a, 0xd2, 0x47, 0xf7, 0xf9, 0x2f, 0x9f, 0xed, 0xd8, 0x2c,
+  0xbf, 0x2e, 0x16, 0x3b, 0x5b, 0x96, 0x5b, 0x9c, 0xe0, 0x73,
+  0x4e, 0x15, 0x34, 0x99, 0xde, 0xce, 0x88, 0x5e, 0x6f, 0xcb,
+  0x01, 0x36, 0x10, 0x07, 0x71, 0x6a, 0x86, 0xf6, 0x3a, 0x9d,
+  0x7f, 0xef, 0xa3, 0x81, 0xd8, 0xff, 0xc0, 0x8c, 0x75, 0x9f,
+  0xa0, 0xe4, 0xd0, 0x94, 0x9b, 0x11, 0xe4, 0x68, 0x44, 0x43,
+  0xcf, 0x9b, 0x39, 0x3a, 0xb5, 0xa7, 0xa4, 0xd4, 0x74, 0x7f,
+  0x86, 0x2a, 0x6a, 0x4b, 0x25, 0x00, 0x15, 0xee, 0x55, 0x30,
+  0x87, 0xef, 0x3d, 0xcb, 0x53, 0xfe, 0x88, 0x5e, 0x71, 0x82,
+  0x09, 0x0c, 0x5b, 0xef, 0x43, 0xda, 0xc8, 0x98, 0x23, 0x54,
+  0x6a, 0xc4, 0x47, 0x8e, 0xbb, 0x4d, 0x5f, 0x2c, 0x1e, 0xaa,
+  0x3f, 0xc2, 0xdb, 0xbe, 0x34, 0xf8, 0xac, 0xca, 0x0c, 0x0d,
+  0xf8, 0x04, 0xec, 0xba, 0xc4, 0x44, 0xd6, 0x22, 0x9e, 0x12,
+  0xc7, 0x14, 0x70, 0x77, 0x56, 0xc6, 0x56, 0xcc, 0x23, 0x12,
+  0x7a, 0xef, 0xb0, 0xa0, 0x87, 0x21, 0x05, 0x15, 0xb4, 0xb7,
+  0x9e, 0xb0, 0xe1, 0x56, 0xe6, 0x36, 0x73, 0x29, 0xb8, 0x81,
+  0x94, 0x26, 0x3d, 0xa4, 0x4c, 0xd6,
+};
+
+const unsigned char kPeerCert[] = {
+  0x30, 0x82, 0x02, 0xda, 0x30, 0x82, 0x01, 0xc2, 0xa0, 0x03,
+  0x02, 0x01, 0x02, 0x02, 0x04, 0x01, 0xc1, 0x6f, 0x87, 0x30,
+  0x0d, 0x06, 0x09, 0x2a, 0x86, 0x48, 0x86, 0xf7, 0x0d, 0x01,
+  0x01, 0x0b, 0x05, 0x00, 0x30, 0x2f, 0x31, 0x2d, 0x30, 0x2b,
+  0x06, 0x03, 0x55, 0x04, 0x03, 0x13, 0x24, 0x31, 0x37, 0x63,
+  0x63, 0x36, 0x62, 0x35, 0x35, 0x2d, 0x33, 0x38, 0x33, 0x34,
+  0x2d, 0x31, 0x31, 0x30, 0x63, 0x2d, 0x64, 0x62, 0x64, 0x64,
+  0x2d, 0x65, 0x32, 0x32, 0x61, 0x61, 0x37, 0x32, 0x37, 0x62,
+  0x31, 0x39, 0x62, 0x30, 0x1e, 0x17, 0x0d, 0x31, 0x34, 0x31,
+  0x30, 0x33, 0x30, 0x30, 0x38, 0x35, 0x30, 0x30, 0x37, 0x5a,
+  0x17, 0x0d, 0x31, 0x34, 0x31, 0x31, 0x30, 0x31, 0x30, 0x38,
+  0x35, 0x30, 0x30, 0x37, 0x5a, 0x30, 0x2f, 0x31, 0x2d, 0x30,
+  0x2b, 0x06, 0x03, 0x55, 0x04, 0x03, 0x13, 0x24, 0x31, 0x37,
+  0x63, 0x63, 0x36, 0x62, 0x35, 0x35, 0x2d, 0x33, 0x38, 0x33,
+  0x34, 0x2d, 0x31, 0x31, 0x30, 0x63, 0x2d, 0x64, 0x62, 0x64,
+  0x64, 0x2d, 0x65, 0x32, 0x32, 0x61, 0x61, 0x37, 0x32, 0x37,
+  0x62, 0x31, 0x39, 0x62, 0x30, 0x82, 0x01, 0x22, 0x30, 0x0d,
+  0x06, 0x09, 0x2a, 0x86, 0x48, 0x86, 0xf7, 0x0d, 0x01, 0x01,
+  0x01, 0x05, 0x00, 0x03, 0x82, 0x01, 0x0f, 0x00, 0x30, 0x82,
+  0x01, 0x0a, 0x02, 0x82, 0x01, 0x01, 0x00, 0xb9, 0x3b, 0x11,
+  0x16, 0xe0, 0x76, 0xc3, 0x19, 0xe9, 0x25, 0xb2, 0x59, 0x46,
+  0x7d, 0xcf, 0x4f, 0xf5, 0x86, 0x3d, 0x73, 0xd7, 0x6e, 0x78,
+  0x20, 0x95, 0x38, 0x80, 0x58, 0x02, 0xe7, 0x05, 0x80, 0x8b,
+  0x06, 0x54, 0x75, 0xa0, 0x7e, 0x2a, 0x43, 0x5e, 0x72, 0xa4,
+  0x6e, 0x07, 0xf2, 0x9a, 0x98, 0x39, 0x86, 0x81, 0x1e, 0x62,
+  0xd7, 0x16, 0xa7, 0x18, 0x14, 0xa7, 0x59, 0xa5, 0xc6, 0x49,
+  0x56, 0xd1, 0x0d, 0x45, 0xea, 0x0d, 0xa6, 0x6a, 0x7c, 0xae,
+  0xac, 0xc8, 0xdc, 0x39, 0xb6, 0xa6, 0xb4, 0xa1, 0x71, 0x71,
+  0xff, 0xfb, 0xa0, 0xb3, 0x02, 0xb3, 0xaa, 0x20, 0xfe, 0xfa,
+  0xcd, 0x18, 0xff, 0x8a, 0xa2, 0x19, 0x82, 0x4f, 0x44, 0x9c,
+  0x97, 0xa4, 0x63, 0xce, 0xe5, 0x76, 0xe5, 0x96, 0x92, 0xc1,
+  0x92, 0x88, 0x2a, 0x5a, 0xb9, 0xde, 0xf3, 0x24, 0xf5, 0xc5,
+  0xfe, 0xfd, 0x42, 0x81, 0x07, 0x51, 0x47, 0x23, 0x15, 0x15,
+  0x5e, 0x5e, 0xf0, 0xf9, 0xac, 0xbe, 0xdb, 0xb6, 0x9d, 0xee,
+  0x92, 0xab, 0xf8, 0xcf, 0x08, 0x1a, 0xf6, 0x14, 0xf2, 0x9c,
+  0x5a, 0xbd, 0x73, 0xa4, 0xd1, 0x02, 0x0b, 0xff, 0xbc, 0x31,
+  0x91, 0xa5, 0xf3, 0x07, 0xef, 0x9f, 0xc4, 0xad, 0x56, 0xf9,
+  0x86, 0xf9, 0xc6, 0xee, 0x27, 0xeb, 0xd7, 0xe9, 0xd8, 0x57,
+  0xb3, 0x0f, 0x96, 0x8e, 0x57, 0x27, 0x5e, 0x5e, 0x75, 0x4e,
+  0x00, 0xd5, 0x4c, 0xbb, 0x2f, 0xb3, 0xcc, 0xd5, 0x91, 0xa5,
+  0x89, 0x62, 0x47, 0x7d, 0x4c, 0x43, 0x77, 0xd9, 0x3d, 0x75,
+  0xcb, 0x6c, 0x85, 0xaa, 0x9c, 0x4f, 0xec, 0x80, 0x30, 0xf2,
+  0xeb, 0x6f, 0xec, 0xe7, 0xd1, 0xd8, 0xbe, 0xc8, 0x9d, 0x14,
+  0x6d, 0x09, 0xc8, 0xc4, 0x95, 0xcf, 0x21, 0xe6, 0xf8, 0xf0,
+  0x25, 0xa3, 0xa2, 0xf6, 0x4f, 0x44, 0xbf, 0x00, 0xca, 0xe7,
+  0x68, 0x7b, 0x33, 0x02, 0x03, 0x01, 0x00, 0x01, 0x30, 0x0d,
+  0x06, 0x09, 0x2a, 0x86, 0x48, 0x86, 0xf7, 0x0d, 0x01, 0x01,
+  0x0b, 0x05, 0x00, 0x03, 0x82, 0x01, 0x01, 0x00, 0x02, 0xd1,
+  0x74, 0x56, 0x74, 0x82, 0x03, 0x2b, 0x53, 0x34, 0x82, 0x9e,
+  0x16, 0xa2, 0x43, 0x24, 0x6c, 0xf1, 0x2c, 0x5f, 0xc2, 0xa5,
+  0x09, 0xc4, 0x72, 0x62, 0x1d, 0xc7, 0x10, 0x57, 0x9a, 0x40,
+  0x55, 0x83, 0xa7, 0x5f, 0x46, 0x44, 0x96, 0xeb, 0xcd, 0x09,
+  0x40, 0xdd, 0xa8, 0xdb, 0x6a, 0xaa, 0xb5, 0xaf, 0x8d, 0x7c,
+  0xb1, 0xa2, 0xc4, 0xff, 0xcc, 0xa5, 0x70, 0x85, 0xa6, 0x30,
+  0x95, 0x69, 0x8b, 0x61, 0x7f, 0x4c, 0x34, 0x95, 0xeb, 0xb1,
+  0x7f, 0x07, 0x4e, 0x60, 0x90, 0x34, 0xc5, 0x3b, 0x37, 0x66,
+  0x94, 0xd7, 0x18, 0x8d, 0x39, 0x64, 0x3b, 0x6e, 0xdc, 0x52,
+  0xf6, 0x46, 0x64, 0x33, 0x50, 0x97, 0xc4, 0xce, 0xba, 0x66,
+  0xc2, 0x91, 0x2a, 0x1b, 0xde, 0xdc, 0x37, 0x26, 0x31, 0x12,
+  0xa8, 0x70, 0x77, 0x7f, 0x4d, 0xc0, 0x65, 0x8e, 0x25, 0x09,
+  0xc5, 0x90, 0x77, 0xf3, 0x60, 0x4d, 0x20, 0xf3, 0x27, 0x7a,
+  0x34, 0x02, 0xea, 0xfe, 0xa1, 0x48, 0x8b, 0x63, 0xc2, 0xf7,
+  0x70, 0xb2, 0x23, 0x65, 0x55, 0xc8, 0x1b, 0xd1, 0x21, 0xe3,
+  0x1b, 0xf0, 0x50, 0xbb, 0x63, 0xe2, 0x7f, 0x02, 0xe0, 0xa5,
+  0xb7, 0x33, 0x67, 0x16, 0x0b, 0xba, 0xfe, 0x5f, 0x9d, 0xa2,
+  0x6f, 0x38, 0xb7, 0x3e, 0x3f, 0x17, 0x6a, 0x6d, 0xe1, 0xa2,
+  0xc4, 0xee, 0x77, 0xe6, 0x80, 0xe1, 0x2c, 0x3d, 0x93, 0x3d,
+  0x17, 0xc3, 0x58, 0x6f, 0x87, 0x0a, 0xe5, 0xa9, 0x7e, 0xef,
+  0xd4, 0x33, 0x94, 0xc3, 0xeb, 0xd5, 0xb4, 0x1a, 0xef, 0x38,
+  0xfb, 0xb4, 0xa9, 0x40, 0xa9, 0x56, 0x41, 0x32, 0xd8, 0xd5,
+  0x16, 0x42, 0xcd, 0xb5, 0xdc, 0x49, 0x64, 0x01, 0x68, 0x2b,
+  0x42, 0xa9, 0xcf, 0x64, 0x12, 0x6a, 0x7c, 0xc8, 0xd8, 0x3b,
+  0xfc, 0x14, 0x67, 0xb4, 0x4e, 0x3a, 0x75, 0x32, 0xda, 0xfe,
+  0x43, 0xb2, 0x35, 0xa1,
+};
+
+class CastAuthUtilTest : public testing::Test {
+ public:
+  CastAuthUtilTest () {}
+  ~CastAuthUtilTest () override {}
+
+  void SetUp() override {
+  }
+
+ protected:
+  static AuthResponse CreateAuthResponse() {
+    AuthResponse response;
+    response.add_intermediate_certificate(
+        std::string(reinterpret_cast<const char*>(kIntermediateCertificate),
+                    arraysize(kIntermediateCertificate)));
+    response.set_client_auth_certificate(
+        std::string(reinterpret_cast<const char*>(kClientAuthCertificate),
+                    arraysize(kClientAuthCertificate)));
+    response.set_signature(std::string(
+        reinterpret_cast<const char*>(kSignature), arraysize(kSignature)));
+    return response;
+  }
+
+  static std::string CreatePeerCert() {
+    return std::string(reinterpret_cast<const char*>(kPeerCert),
+                       arraysize(kPeerCert));
+  }
+
+  // Mangles a string by inverting the first byte.
+  static void MangleString(std::string* str) {
+    (*str)[0] = ~(*str)[0];
+  }
+};
+
+TEST_F(CastAuthUtilTest, VerifySuccess) {
+  AuthResponse auth_response = CreateAuthResponse();
+  AuthResult result = VerifyCredentials(
+      auth_response, CreatePeerCert());
+  EXPECT_TRUE(result.success());
+}
+
+TEST_F(CastAuthUtilTest, VerifyBadCA) {
+  AuthResponse auth_response = CreateAuthResponse();
+  MangleString(auth_response.mutable_intermediate_certificate(0));
+  AuthResult result = VerifyCredentials(
+      auth_response, CreatePeerCert());
+  EXPECT_FALSE(result.success());
+  EXPECT_EQ(AuthResult::ERROR_FINGERPRINT_NOT_FOUND,
+            result.error_type);
+}
+
+TEST_F(CastAuthUtilTest, VerifyBadClientAuthCert) {
+  AuthResponse auth_response = CreateAuthResponse();
+  MangleString(auth_response.mutable_client_auth_certificate());
+  AuthResult result = VerifyCredentials(
+      auth_response, CreatePeerCert());
+  EXPECT_FALSE(result.success());
+  EXPECT_EQ(AuthResult::ERROR_CERT_PARSING_FAILED,
+            result.error_type);
+}
+
+TEST_F(CastAuthUtilTest, VerifyBadSignature) {
+  AuthResponse auth_response = CreateAuthResponse();
+  MangleString(auth_response.mutable_signature());
+  AuthResult result = VerifyCredentials(
+      auth_response, CreatePeerCert());
+  EXPECT_FALSE(result.success());
+  EXPECT_EQ(AuthResult::ERROR_SIGNED_BLOBS_MISMATCH,
+            result.error_type);
+}
+
+TEST_F(CastAuthUtilTest, VerifyBadPeerCert) {
+  AuthResponse auth_response = CreateAuthResponse();
+  std::string peer_cert = CreatePeerCert();
+  MangleString(&peer_cert);
+  AuthResult result = VerifyCredentials(
+      auth_response, peer_cert);
+  EXPECT_FALSE(result.success());
+  EXPECT_EQ(AuthResult::ERROR_SIGNED_BLOBS_MISMATCH,
+            result.error_type);
+}
+
+}  // namespace
+}  // namespace cast_channel
+}  // namespace core_api
+}  // namespace extensions