Enable passing cast channel certificate authority keys.

extensions/browser/api/cast_channel/cast_auth_ica.cc

Index: extensions/browser/api/cast_channel/cast_auth_ica.cc
diff --git a/extensions/browser/api/cast_channel/cast_auth_ica.cc b/extensions/browser/api/cast_channel/cast_auth_ica.cc
index 1dd83558ce9d1b2b05139c38cc9e44454c69f7bd..ac97edca135c3d2db082c855f4362effc5be2b1a 100644
--- a/extensions/browser/api/cast_channel/cast_auth_ica.cc
+++ b/extensions/browser/api/cast_channel/cast_auth_ica.cc
@@ -4,7 +4,11 @@
 
 #include "extensions/browser/api/cast_channel/cast_auth_ica.h"
 
+#include "base/base64.h"
+#include "base/lazy_instance.h"
+#include "crypto/signature_verifier.h"
 #include "extensions/browser/api/cast_channel/cast_auth_util.h"
+#include "extensions/common/api/cast_channel/authority_keys.pb.h"
 #include "net/base/hash_value.h"
 #include "net/cert/x509_certificate.h"
 
@@ -13,18 +17,13 @@ namespace core_api {
 namespace cast_channel {
 namespace {
 
-// Struct for trusted ICA certs (for BoringSSL and NSS).
-struct ICACertInfo {
-  const net::SHA1HashValue* fingerprint;
-  const unsigned char* public_key;
-  const int public_key_len;
-};
-
 // Fingerprints and public keys of the allowed / trusted ICAs.
-static const net::SHA1HashValue kFingerprintICA1 = { {
-    0x57, 0x16, 0xE2, 0xAD, 0x73, 0x2E, 0xBE, 0xDA, 0xEB, 0x18,
-    0xE8, 0x47, 0x15, 0xA8, 0xDE, 0x90, 0x3B, 0x5E, 0x2A, 0xF4
+static const net::SHA256HashValue kFingerprintICA1 = { {
+    0x52, 0x9D, 0x9C, 0xD6, 0x7F, 0xE5, 0xEB, 0x69, 0x8E, 0x70, 0xDD, 0x26,
+    0xD7, 0xD8, 0xF1, 0x26, 0x59, 0xF1, 0xE6, 0xE5, 0x23, 0x48, 0xBF, 0x6A,
+    0x5C, 0xF7, 0x16, 0xE1, 0x3F, 0x41, 0x0E, 0x73
 } };
+
 static const unsigned char kPublicKeyICA1[] = {
     0x30, 0x82, 0x01, 0x0A, 0x02, 0x82, 0x01, 0x01, 0x00, 0xBC, 0x22, 0x80,
     0xBD, 0x80, 0xF6, 0x3A, 0x21, 0x00, 0x3B, 0xAE, 0x76, 0x5E, 0x35, 0x7F,
@@ -51,10 +50,12 @@ static const unsigned char kPublicKeyICA1[] = {
     0x1B, 0x02, 0x03, 0x01, 0x00, 0x01
 };
 
-static const net::SHA1HashValue kFingerprintICA2 = { {
-    0x1B, 0xA2, 0x9E, 0xC9, 0x8E, 0x4E, 0xB3, 0x80, 0xEE, 0x55,
-    0xB2, 0x97, 0xFD, 0x2E, 0x2B, 0x2C, 0xB6, 0x8E, 0x0B, 0x2F
-} };
+static const net::SHA256HashValue kFingerprintICA2 = {{
+    0x98, 0xD6, 0x6D, 0xE8, 0x1C, 0x56, 0x47, 0x84, 0x4D, 0x96, 0x43, 0x4D,
+    0x37, 0xC4, 0x8D, 0xC2, 0xCE, 0x7F, 0x08, 0x72, 0x50, 0x19, 0xE7, 0xB6,
+    0xE8, 0x92, 0x7F, 0x56, 0xD6, 0x81, 0xAA, 0x18
+}};
+
 static const unsigned char kPublicKeyICA2[] = {
     0x30, 0x82, 0x01, 0x0A, 0x02, 0x82, 0x01, 0x01, 0x00, 0xBC, 0x22, 0x80,
     0xBD, 0x80, 0xF6, 0x3A, 0x21, 0x00, 0x3B, 0xAE, 0x76, 0x5E, 0x35, 0x7F,
@@ -81,11 +82,45 @@ static const unsigned char kPublicKeyICA2[] = {
     0x1B, 0x02, 0x03, 0x01, 0x00, 0x01
 };
 
-static const net::SHA1HashValue kFingerprintICA3 = { {
-    0x97, 0x05, 0xCE, 0xF6, 0x3F, 0xA9, 0x5E, 0x0F, 0xE7, 0x61,
-    0xFB, 0x08, 0x44, 0x31, 0xBE, 0xDE, 0x01, 0xB8, 0xFB, 0xEB
-} };
+static const net::SHA256HashValue kFingerprintICA3 = {{
+    0xA2, 0x48, 0xC2, 0xE8, 0x54, 0xE6, 0x56, 0xA5, 0x6D, 0xE8, 0x23, 0x1F,
+    0x1E, 0xE1, 0x75, 0x6F, 0xDB, 0xE4, 0x07, 0xF9, 0xFE, 0xD4, 0x65, 0x0D,
+    0x60, 0xCC, 0x5A, 0xCB, 0x65, 0x11, 0xC7, 0x20
+}};
+
 static const unsigned char kPublicKeyICA3[] = {
+    0x30, 0x82, 0x01, 0x0A, 0x02, 0x82, 0x01, 0x01, 0x00, 0xB0, 0x0E, 0x5E,
+    0x07, 0x3A, 0xDF, 0xA4, 0x5F, 0x68, 0xF7, 0x21, 0xC7, 0x64, 0xDB, 0xB6,
+    0x76, 0xEF, 0xEE, 0x8B, 0x93, 0xF8, 0xF6, 0x1B, 0x88, 0xE1, 0x93, 0xB7,
+    0x17, 0xF0, 0x15, 0x1E, 0x7E, 0x52, 0x55, 0x77, 0x3C, 0x02, 0x8D, 0x7B,
+    0x4A, 0x6C, 0xD3, 0xBD, 0xD6, 0xC1, 0x9C, 0x72, 0xC8, 0xB3, 0x15, 0xCF,
+    0x11, 0xC1, 0xF5, 0x46, 0xC4, 0xD5, 0x20, 0x47, 0xFB, 0x30, 0xF4, 0xE4,
+    0x61, 0x0C, 0x68, 0xF0, 0x5E, 0xAB, 0x37, 0x8E, 0x9B, 0xE1, 0xBC, 0x81,
+    0xC3, 0x70, 0x8A, 0x78, 0xD6, 0x83, 0x34, 0x32, 0x9C, 0x19, 0x62, 0xEB,
+    0xE4, 0x9C, 0xED, 0xE3, 0x64, 0x6C, 0x41, 0x1D, 0x9C, 0xD2, 0x8B, 0x48,
+    0x4C, 0x23, 0x90, 0x95, 0xB3, 0xE7, 0x52, 0xEA, 0x05, 0x57, 0xCC, 0x60,
+    0xB3, 0xBA, 0x14, 0xE4, 0xBA, 0x00, 0x39, 0xE4, 0x46, 0x55, 0x74, 0xCE,
+    0x5A, 0x8E, 0x7A, 0x67, 0x23, 0xDA, 0x68, 0x0A, 0xFA, 0xC4, 0x84, 0x1E,
+    0xB4, 0xC5, 0xA1, 0xA2, 0x6A, 0x73, 0x1F, 0x6E, 0xC8, 0x2E, 0x2F, 0x9A,
+    0x9E, 0xA8, 0xB1, 0x0E, 0xFD, 0x87, 0xA6, 0x8F, 0x4D, 0x3D, 0x4B, 0x05,
+    0xD5, 0x35, 0x5A, 0x74, 0x4D, 0xBC, 0x8E, 0x82, 0x44, 0x96, 0xF4, 0xB5,
+    0x95, 0x60, 0x4E, 0xA5, 0xDF, 0x27, 0x3D, 0x41, 0x5C, 0x07, 0xA3, 0xB4,
+    0x35, 0x5A, 0xB3, 0x9E, 0xF2, 0x05, 0x24, 0xCA, 0xCD, 0x31, 0x5A, 0x0D,
+    0x26, 0x4C, 0xD4, 0xD3, 0xFD, 0x50, 0xE1, 0x34, 0xE9, 0x4C, 0x81, 0x58,
+    0x30, 0xB2, 0xC7, 0x7A, 0xDD, 0x81, 0x89, 0xA6, 0xD4, 0x3A, 0x38, 0x84,
+    0x03, 0xB7, 0x34, 0x9E, 0x77, 0x3F, 0xFF, 0x78, 0x07, 0x5B, 0x99, 0xC1,
+    0xB2, 0x1F, 0x35, 0x56, 0x6E, 0x3A, 0x3C, 0x0C, 0x25, 0xE1, 0x57, 0xF6,
+    0x8A, 0x7E, 0x49, 0xC0, 0xCC, 0x83, 0x11, 0x35, 0xE7, 0x91, 0x6D, 0x2E,
+    0x65, 0x02, 0x03, 0x01, 0x00, 0x01
+};
+
+static const net::SHA256HashValue kFingerprintICA4 = {{
+    0x2B, 0x9B, 0xC7, 0x92, 0xCD, 0x2A, 0x20, 0xB3, 0x65, 0x5E, 0x57, 0xFB,
+    0x10, 0x1A, 0x95, 0x93, 0x62, 0x53, 0x69, 0x50, 0x52, 0xA2, 0x71, 0x42,
+    0x2B, 0xFE, 0xB5, 0xB4, 0x5D, 0xC5, 0xA5, 0xE9
+}};
+
+static const unsigned char kPublicKeyICA4[] = {
     0x30, 0x82, 0x01, 0x0A, 0x02, 0x82, 0x01, 0x01, 0x00, 0xB7, 0xE8, 0xC3,
     0xE4, 0x2C, 0xDE, 0x74, 0x53, 0xF2, 0x49, 0x95, 0x6D, 0xD1, 0xDA, 0x69,
     0x57, 0x0D, 0x86, 0xE5, 0xED, 0xB4, 0xB9, 0xE6, 0x73, 0x9F, 0x6C, 0xAD,
@@ -111,40 +146,12 @@ static const unsigned char kPublicKeyICA3[] = {
     0x09, 0x02, 0x03, 0x01, 0x00, 0x01
 };
 
-static const net::SHA1HashValue kFingerprintICA4 = { {
-    0x01, 0xF5, 0x28, 0x56, 0x33, 0x80, 0x9B, 0x31, 0xE7, 0xD9,
-    0xF7, 0x4E, 0xAA, 0xDD, 0x97, 0x37, 0xA0, 0x28, 0xE7, 0x24
-} };
-static const unsigned char kPublicKeyICA4[] = {
-    0x30, 0x82, 0x01, 0x0A, 0x02, 0x82, 0x01, 0x01, 0x00, 0xB0, 0x0E, 0x5E,
-    0x07, 0x3A, 0xDF, 0xA4, 0x5F, 0x68, 0xF7, 0x21, 0xC7, 0x64, 0xDB, 0xB6,
-    0x76, 0xEF, 0xEE, 0x8B, 0x93, 0xF8, 0xF6, 0x1B, 0x88, 0xE1, 0x93, 0xB7,
-    0x17, 0xF0, 0x15, 0x1E, 0x7E, 0x52, 0x55, 0x77, 0x3C, 0x02, 0x8D, 0x7B,
-    0x4A, 0x6C, 0xD3, 0xBD, 0xD6, 0xC1, 0x9C, 0x72, 0xC8, 0xB3, 0x15, 0xCF,
-    0x11, 0xC1, 0xF5, 0x46, 0xC4, 0xD5, 0x20, 0x47, 0xFB, 0x30, 0xF4, 0xE4,
-    0x61, 0x0C, 0x68, 0xF0, 0x5E, 0xAB, 0x37, 0x8E, 0x9B, 0xE1, 0xBC, 0x81,
-    0xC3, 0x70, 0x8A, 0x78, 0xD6, 0x83, 0x34, 0x32, 0x9C, 0x19, 0x62, 0xEB,
-    0xE4, 0x9C, 0xED, 0xE3, 0x64, 0x6C, 0x41, 0x1D, 0x9C, 0xD2, 0x8B, 0x48,
-    0x4C, 0x23, 0x90, 0x95, 0xB3, 0xE7, 0x52, 0xEA, 0x05, 0x57, 0xCC, 0x60,
-    0xB3, 0xBA, 0x14, 0xE4, 0xBA, 0x00, 0x39, 0xE4, 0x46, 0x55, 0x74, 0xCE,
-    0x5A, 0x8E, 0x7A, 0x67, 0x23, 0xDA, 0x68, 0x0A, 0xFA, 0xC4, 0x84, 0x1E,
-    0xB4, 0xC5, 0xA1, 0xA2, 0x6A, 0x73, 0x1F, 0x6E, 0xC8, 0x2E, 0x2F, 0x9A,
-    0x9E, 0xA8, 0xB1, 0x0E, 0xFD, 0x87, 0xA6, 0x8F, 0x4D, 0x3D, 0x4B, 0x05,
-    0xD5, 0x35, 0x5A, 0x74, 0x4D, 0xBC, 0x8E, 0x82, 0x44, 0x96, 0xF4, 0xB5,
-    0x95, 0x60, 0x4E, 0xA5, 0xDF, 0x27, 0x3D, 0x41, 0x5C, 0x07, 0xA3, 0xB4,
-    0x35, 0x5A, 0xB3, 0x9E, 0xF2, 0x05, 0x24, 0xCA, 0xCD, 0x31, 0x5A, 0x0D,
-    0x26, 0x4C, 0xD4, 0xD3, 0xFD, 0x50, 0xE1, 0x34, 0xE9, 0x4C, 0x81, 0x58,
-    0x30, 0xB2, 0xC7, 0x7A, 0xDD, 0x81, 0x89, 0xA6, 0xD4, 0x3A, 0x38, 0x84,
-    0x03, 0xB7, 0x34, 0x9E, 0x77, 0x3F, 0xFF, 0x78, 0x07, 0x5B, 0x99, 0xC1,
-    0xB2, 0x1F, 0x35, 0x56, 0x6E, 0x3A, 0x3C, 0x0C, 0x25, 0xE1, 0x57, 0xF6,
-    0x8A, 0x7E, 0x49, 0xC0, 0xCC, 0x83, 0x11, 0x35, 0xE7, 0x91, 0x6D, 0x2E,
-    0x65, 0x02, 0x03, 0x01, 0x00, 0x01
-};
+static const net::SHA256HashValue kFingerprintICA5 = {{
+    0xFD, 0xCD, 0x0D, 0x59, 0x29, 0xF8, 0x7A, 0x62, 0xD2, 0xFE, 0x0F, 0xD8,
+    0x94, 0xB8, 0x32, 0xF1, 0xD4, 0x9C, 0x73, 0xF9, 0xD3, 0x51, 0x8B, 0x64,
+    0x67, 0x3E, 0x04, 0x97, 0x0B, 0x0A, 0x4F, 0xAD
+}};
 
-static const net::SHA1HashValue kFingerprintICA5 = { {
-    0x59, 0xD6, 0xA3, 0xAB, 0xF3, 0x2E, 0x1D, 0x33, 0x6C, 0xA1,
-    0x08, 0xA4, 0x8A, 0xA4, 0x32, 0x90, 0x5C, 0x63, 0x2B, 0x1E
-} };
 static const unsigned char kPublicKeyICA5[] = {
     0x30, 0x82, 0x01, 0x0A, 0x02, 0x82, 0x01, 0x01, 0x00, 0xC2, 0xF6, 0xD5,
     0x91, 0xDC, 0x37, 0xB4, 0x9A, 0x73, 0x4A, 0xE7, 0x74, 0x6D, 0x03, 0xAE,
@@ -171,10 +178,12 @@ static const unsigned char kPublicKeyICA5[] = {
     0xDF, 0x02, 0x03, 0x01, 0x00, 0x01
 };
 
-static const net::SHA1HashValue kFingerprintICA6 = { {
-    0xE0, 0xE1, 0x57, 0x47, 0xFD, 0x50, 0xA4, 0x99, 0x80, 0x6E,
-    0x52, 0x40, 0x9F, 0x9C, 0xE3, 0x9F, 0x6D, 0x81, 0x59, 0xFE
-} };
+static const net::SHA256HashValue kFingerprintICA6 = {{
+    0xD6, 0xA1, 0xC4, 0xBC, 0x74, 0x5B, 0xC8, 0xE9, 0xED, 0xF8, 0x9C, 0x0D,
+    0x55, 0xCC, 0xB2, 0xC9, 0xF3, 0x04, 0xF6, 0x6E, 0x4D, 0x3D, 0x27, 0x4C,
+    0xA3, 0xFC, 0x0F, 0x4B, 0x95, 0x55, 0x10, 0x7E
+}};
+
 static const unsigned char kPublicKeyICA6[] = {
     0x30, 0x82, 0x01, 0x0A, 0x02, 0x82, 0x01, 0x01, 0x00, 0xB5, 0xC8, 0x14,
     0x5B, 0x94, 0x2E, 0x8E, 0x40, 0xBC, 0x8A, 0xAB, 0x1F, 0x48, 0xEE, 0xA5,
@@ -201,10 +210,12 @@ static const unsigned char kPublicKeyICA6[] = {
     0xE9, 0x02, 0x03, 0x01, 0x00, 0x01
 };
 
-static const net::SHA1HashValue kFingerprintICA7 = { {
-    0xF9, 0xDC, 0x51, 0x97, 0x48, 0xB6, 0x61, 0xBD, 0x60, 0x78,
-    0x91, 0x6B, 0x20, 0xC1, 0x9A, 0xA3, 0xCA, 0xEC, 0xF8, 0xFC
-} };
+static const net::SHA256HashValue kFingerprintICA7 = {{
+    0xB6, 0xB3, 0x4F, 0x73, 0x23, 0x9D, 0xA6, 0xDD, 0x9A, 0x26, 0xF7, 0xD5,
+    0x9E, 0x26, 0x3B, 0xF0, 0x0C, 0x01, 0x6B, 0x21, 0x17, 0x41, 0xE5, 0xAD,
+    0x92, 0xA5, 0xA0, 0x0B, 0xD7, 0x31, 0x26, 0x11
+}};
+
 static const unsigned char kPublicKeyICA7[] = {
     0x30, 0x82, 0x01, 0x0A, 0x02, 0x82, 0x01, 0x01, 0x00, 0xCC, 0xE2, 0xB6,
     0x2F, 0x11, 0xAB, 0xFF, 0xD0, 0x5D, 0x63, 0x97, 0x59, 0xFA, 0x5F, 0x26,
@@ -231,10 +242,12 @@ static const unsigned char kPublicKeyICA7[] = {
     0x3F, 0x02, 0x03, 0x01, 0x00, 0x01
 };
 
-static const net::SHA1HashValue kFingerprintICA8 = { {
-    0x51, 0xD4, 0x70, 0x0A, 0x03, 0x6E, 0xA5, 0x6A, 0xF3, 0x99,
-    0xCF, 0x3D, 0x0F, 0x17, 0x8D, 0x10, 0x1A, 0x4B, 0xD2, 0x44
-} };
+static const net::SHA256HashValue kFingerprintICA8 = {{
+    0xE9, 0xD4, 0x83, 0xD3, 0x78, 0x01, 0xB1, 0x1A, 0xB8, 0x8E, 0xE1, 0x87,
+    0xB1, 0x88, 0xD5, 0xE2, 0xF0, 0xFE, 0x18, 0xE7, 0xCE, 0xB8, 0x10, 0x06,
+    0x3E, 0xA5, 0x05, 0x4A, 0x1A, 0x9D, 0x1C, 0x11
+}};
+
 static const unsigned char kPublicKeyICA8[] = {
     0x30, 0x82, 0x01, 0x0A, 0x02, 0x82, 0x01, 0x01, 0x00, 0xBF, 0x3A, 0x31,
     0xFC, 0xF8, 0xE6, 0xEE, 0xC0, 0x48, 0x00, 0xB4, 0x05, 0x65, 0x36, 0x23,
@@ -261,10 +274,12 @@ static const unsigned char kPublicKeyICA8[] = {
     0xB9, 0x02, 0x03, 0x01, 0x00, 0x01
 };
 
-static const net::SHA1HashValue kFingerprintICA9 = { {
-    0x9B, 0x2A, 0x45, 0xBD, 0x4F, 0x80, 0x53, 0x94, 0xD3, 0xA7,
-    0x9D, 0xC7, 0xFA, 0xCD, 0x77, 0x0B, 0x36, 0xB2, 0x3C, 0x18
-} };
+static const net::SHA256HashValue kFingerprintICA9 = {{
+    0x7A, 0x96, 0xE1, 0xA4, 0xDE, 0xEB, 0x04, 0x23, 0xD6, 0xC4, 0xFD, 0x98,
+    0xDF, 0x25, 0x83, 0x25, 0x2C, 0x3E, 0xE0, 0x23, 0x35, 0x9F, 0x4B, 0x92,
+    0x08, 0xAB, 0xE8, 0x7C, 0xB1, 0xD8, 0x4D, 0x85
+}};
+
 static const unsigned char kPublicKeyICA9[] = {
     0x30, 0x82, 0x01, 0x0A, 0x02, 0x82, 0x01, 0x01, 0x00, 0xE5, 0x44, 0x79,
     0xD4, 0x75, 0x3A, 0xBD, 0x25, 0x6F, 0x89, 0xF7, 0x94, 0xE9, 0x23, 0xAE,
@@ -291,10 +306,12 @@ static const unsigned char kPublicKeyICA9[] = {
     0xA1, 0x02, 0x03, 0x01, 0x00, 0x01
 };
 
-static const net::SHA1HashValue kFingerprintICA10 = { {
-    0xDD, 0x37, 0x71, 0xB1, 0x84, 0x07, 0xA5, 0x1A, 0x8B, 0x9C,
-    0x75, 0xA3, 0x77, 0x3B, 0xE4, 0x67, 0x04, 0xB8, 0x66, 0xE5
-} };
+static const net::SHA256HashValue kFingerprintICA10 = {{
+    0x61, 0x79, 0xBE, 0x64, 0x83, 0xD6, 0x71, 0xCE, 0x4F, 0xEE, 0x95, 0x5B,
+    0xF3, 0x6A, 0x1D, 0xDB, 0xC9, 0x51, 0x2F, 0xF4, 0x0C, 0xF8, 0xA5, 0x1C,
+    0x4F, 0x31, 0x2A, 0x93, 0x9A, 0x94, 0x07, 0xF7
+}};
+
 static const unsigned char kPublicKeyICA10[] = {
     0x30, 0x82, 0x01, 0x0A, 0x02, 0x82, 0x01, 0x01, 0x00, 0xAF, 0xA1, 0x27,
     0x5B, 0x18, 0x01, 0xF9, 0x16, 0x7C, 0xB9, 0x1D, 0xBB, 0x34, 0xC4, 0x45,
@@ -321,10 +338,12 @@ static const unsigned char kPublicKeyICA10[] = {
     0x8F, 0x02, 0x03, 0x01, 0x00, 0x01
 };
 
-static const net::SHA1HashValue kFingerprintICA11 = { {
-    0x34, 0xAB, 0x0F, 0x01, 0x2C, 0x4F, 0x99, 0x70, 0xA2, 0x44,
-    0x57, 0x12, 0xFB, 0xE3, 0x52, 0xC4, 0x9E, 0x0A, 0x20, 0x6B
-} };
+static const net::SHA256HashValue kFingerprintICA11 = {{
+    0x9C, 0x1E, 0xB3, 0xEA, 0x88, 0xAA, 0x1C, 0x1E, 0x0A, 0xE7, 0x9C, 0x2B,
+    0x43, 0xFF, 0x46, 0xD4, 0xC8, 0xF5, 0xF4, 0xFF, 0x43, 0x71, 0xFB, 0x83,
+    0xE4, 0x81, 0x13, 0x8D, 0xAD, 0x82, 0x42, 0xE8
+}};
+
 static const unsigned char kPublicKeyICA11[] = {
     0x30, 0x82, 0x01, 0x0A, 0x02, 0x82, 0x01, 0x01, 0x00, 0xA8, 0xB2, 0x65,
     0xFB, 0x07, 0xB0, 0x21, 0xBE, 0x11, 0xD1, 0xDA, 0x5D, 0x89, 0xB5, 0xAA,
@@ -351,10 +370,12 @@ static const unsigned char kPublicKeyICA11[] = {
     0xF9, 0x02, 0x03, 0x01, 0x00, 0x01
 };
 
-static const net::SHA1HashValue kFingerprintICA12 = { {
-    0x7C, 0x3E, 0x64, 0x37, 0x30, 0xA4, 0x6D, 0xE5, 0x16, 0x7F,
-    0xAC, 0xEA, 0xEA, 0x2A, 0x16, 0x3E, 0xE7, 0x15, 0x45, 0x3A
-} };
+static const net::SHA256HashValue kFingerprintICA12 = {{
+    0xFF, 0xFA, 0x45, 0x0D, 0x1D, 0xB6, 0x31, 0x13, 0xA7, 0x43, 0x70, 0x19,
+    0x6E, 0xCB, 0xDB, 0xA4, 0x3F, 0x74, 0xF4, 0xBD, 0x63, 0xAD, 0x8E, 0xFD,
+    0x35, 0x62, 0xB3, 0xF9, 0xE8, 0x69, 0x1F, 0xDB
+}};
+
 static const unsigned char kPublicKeyICA12[] = {
     0x30, 0x82, 0x01, 0x0A, 0x02, 0x82, 0x01, 0x01, 0x00, 0xD9, 0xE3, 0x76,
     0x97, 0x6A, 0xEF, 0x2D, 0x16, 0xD5, 0xF9, 0xDC, 0x9D, 0x0E, 0x65, 0x12,
@@ -381,10 +402,12 @@ static const unsigned char kPublicKeyICA12[] = {
     0xF1, 0x02, 0x03, 0x01, 0x00, 0x01
 };
 
-static const net::SHA1HashValue kFingerprintICA13 = { {
-    0x26, 0x43, 0xE5, 0x33, 0x9E, 0x07, 0x14, 0x83, 0x9A, 0xB1,
-    0xCF, 0x38, 0x1C, 0x77, 0x74, 0xF0, 0xE5, 0xBF, 0x88, 0x6F
-} };
+static const net::SHA256HashValue kFingerprintICA13 = {{
+    0xE0, 0x2C, 0x66, 0xCD, 0x6F, 0x96, 0xFC, 0x1B, 0x5A, 0x43, 0xC4, 0xA5,
+    0x19, 0xB6, 0x6F, 0x0B, 0xFE, 0xA7, 0x58, 0x0D, 0xC1, 0x02, 0x3E, 0xFE,
+    0xFF, 0x9C, 0xE4, 0x9E, 0xB1, 0x7E, 0x3F, 0x79
+}};
+
 static const unsigned char kPublicKeyICA13[] = {
     0x30, 0x82, 0x01, 0x0A, 0x02, 0x82, 0x01, 0x01, 0x00, 0xBB, 0xE5, 0x0F,
     0xD2, 0x1C, 0x6B, 0xBA, 0x23, 0xA9, 0x2F, 0x87, 0xEC, 0xDB, 0x92, 0x3F,
@@ -411,10 +434,12 @@ static const unsigned char kPublicKeyICA13[] = {
     0x1D, 0x02, 0x03, 0x01, 0x00, 0x01
 };
 
-static const net::SHA1HashValue kFingerprintICA14 = { {
-    0xCF, 0x58, 0x82, 0xEE, 0x81, 0x71, 0x71, 0x8E, 0x2C, 0xBD,
-    0xDB, 0x87, 0xE0, 0x18, 0xF5, 0xED, 0xDA, 0x85, 0x4A, 0x13
-} };
+static const net::SHA256HashValue kFingerprintICA14 = {{
+    0x3B, 0x60, 0x2E, 0xE9, 0x9F, 0x75, 0x7C, 0x18, 0xE3, 0x08, 0x1E, 0xC0,
+    0x72, 0xE9, 0x20, 0x05, 0x0B, 0x83, 0xD7, 0xB7, 0x5E, 0x25, 0x47, 0xE7,
+    0xE6, 0x44, 0x2C, 0x40, 0xF4, 0xA9, 0xA1, 0xD0
+}};
+
 static const unsigned char kPublicKeyICA14[] = {
     0x30, 0x82, 0x01, 0x0A, 0x02, 0x82, 0x01, 0x01, 0x00, 0xAD, 0x16, 0x57,
     0x87, 0xD7, 0x0D, 0xA3, 0xA2, 0x7E, 0x8B, 0xAE, 0x45, 0x7A, 0x1F, 0xCA,
@@ -441,10 +466,12 @@ static const unsigned char kPublicKeyICA14[] = {
     0xD9, 0x02, 0x03, 0x01, 0x00, 0x01
 };
 
-static const net::SHA1HashValue kFingerprintICA15 = { {
-    0xFD, 0x28, 0xC3, 0x71, 0x00, 0x27, 0x0F, 0x36, 0x28, 0x32,
-    0x7F, 0xE6, 0xD6, 0x8A, 0x6F, 0x59, 0x58, 0x4B, 0x3E, 0x1E
-} };
+static const net::SHA256HashValue kFingerprintICA15 = {{
+    0x09, 0xA7, 0x9F, 0x65, 0xE5, 0x55, 0x72, 0xAA, 0xFD, 0xDB, 0x74, 0xE9,
+    0xF8, 0xFA, 0x01, 0x45, 0x1D, 0x8E, 0xA4, 0x17, 0x48, 0xAB, 0x50, 0x75,
+    0xF9, 0xB1, 0x12, 0xB0, 0x6F, 0xC8, 0x08, 0xAE
+}};
+
 static const unsigned char kPublicKeyICA15[] = {
     0x30, 0x82, 0x01, 0x0A, 0x02, 0x82, 0x01, 0x01, 0x00, 0xDD, 0xFE, 0x56,
     0x5F, 0x53, 0x05, 0x59, 0x8F, 0x7C, 0xF4, 0x8B, 0x90, 0x38, 0xED, 0x51,
@@ -471,10 +498,12 @@ static const unsigned char kPublicKeyICA15[] = {
     0x99, 0x02, 0x03, 0x01, 0x00, 0x01
 };
 
-static const net::SHA1HashValue kFingerprintICA16 = { {
-    0xBC, 0x59, 0x07, 0x13, 0xA9, 0xCE, 0x8B, 0xFE, 0xE3, 0x5B,
-    0xB7, 0xC3, 0xC3, 0xC2, 0x48, 0x44, 0xE8, 0x6A, 0x77, 0xC0
-} };
+static const net::SHA256HashValue kFingerprintICA16 = {{
+    0x49, 0x0D, 0xC9, 0x48, 0xA1, 0x6B, 0x02, 0xEA, 0xC6, 0xDA, 0x47, 0x99,
+    0x36, 0x4D, 0xD2, 0xAF, 0x04, 0xF7, 0xEA, 0x46, 0x30, 0xCF, 0x33, 0x79,
+    0x73, 0x10, 0xAC, 0x4C, 0x07, 0xB4, 0x67, 0xAD
+}};
+
 static const unsigned char kPublicKeyICA16[] = {
     0x30, 0x82, 0x01, 0x0A, 0x02, 0x82, 0x01, 0x01, 0x00, 0xD2, 0xB0, 0xC9,
     0xB3, 0x88, 0xCD, 0x93, 0x23, 0x6A, 0x46, 0xD3, 0x69, 0x0A, 0xD7, 0xFF,
@@ -501,53 +530,170 @@ static const unsigned char kPublicKeyICA16[] = {
     0x63, 0x02, 0x03, 0x01, 0x00, 0x01
 };
 
-// List of allowed / trusted ICAs.
-const ICACertInfo kAllowedICAs[] = {
-    {&kFingerprintICA1,  kPublicKeyICA1,  sizeof(kPublicKeyICA1)},
-    {&kFingerprintICA2,  kPublicKeyICA2,  sizeof(kPublicKeyICA2)},
-    {&kFingerprintICA3,  kPublicKeyICA3,  sizeof(kPublicKeyICA3)},
-    {&kFingerprintICA4,  kPublicKeyICA4,  sizeof(kPublicKeyICA4)},
-    {&kFingerprintICA5,  kPublicKeyICA5,  sizeof(kPublicKeyICA5)},
-    {&kFingerprintICA6,  kPublicKeyICA6,  sizeof(kPublicKeyICA6)},
-    {&kFingerprintICA7,  kPublicKeyICA7,  sizeof(kPublicKeyICA7)},
-    {&kFingerprintICA8,  kPublicKeyICA8,  sizeof(kPublicKeyICA8)},
-    {&kFingerprintICA9,  kPublicKeyICA9,  sizeof(kPublicKeyICA9)},
+// Info for trusted ICA certs.
+struct ICACertInfo {
+  const net::SHA256HashValue* fingerprint;
+  const unsigned char* public_key;
+  size_t public_key_size;
+};
+
+// Default list of allowed / trusted ICAs.
+static const ICACertInfo kAllowedICAs[] = {
+    {&kFingerprintICA1, kPublicKeyICA1, sizeof(kPublicKeyICA1)},
+    {&kFingerprintICA2, kPublicKeyICA2, sizeof(kPublicKeyICA2)},
+    {&kFingerprintICA3, kPublicKeyICA3, sizeof(kPublicKeyICA3)},
+    {&kFingerprintICA4, kPublicKeyICA4, sizeof(kPublicKeyICA4)},
+    {&kFingerprintICA5, kPublicKeyICA5, sizeof(kPublicKeyICA5)},
+    {&kFingerprintICA6, kPublicKeyICA6, sizeof(kPublicKeyICA6)},
+    {&kFingerprintICA7, kPublicKeyICA7, sizeof(kPublicKeyICA7)},
+    {&kFingerprintICA8, kPublicKeyICA8, sizeof(kPublicKeyICA8)},
+    {&kFingerprintICA9, kPublicKeyICA9, sizeof(kPublicKeyICA9)},
     {&kFingerprintICA10, kPublicKeyICA10, sizeof(kPublicKeyICA10)},
     {&kFingerprintICA11, kPublicKeyICA11, sizeof(kPublicKeyICA11)},
     {&kFingerprintICA12, kPublicKeyICA12, sizeof(kPublicKeyICA12)},
     {&kFingerprintICA13, kPublicKeyICA13, sizeof(kPublicKeyICA13)},
     {&kFingerprintICA14, kPublicKeyICA14, sizeof(kPublicKeyICA14)},
     {&kFingerprintICA15, kPublicKeyICA15, sizeof(kPublicKeyICA15)},
-    {&kFingerprintICA16, kPublicKeyICA16, sizeof(kPublicKeyICA16)},
-};
+    {&kFingerprintICA16, kPublicKeyICA16, sizeof(kPublicKeyICA16)}};
+
+// Built in public key for verifying trusted authorities data.
+const uint8 kPublicKey[] = {
+    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, 0xC3, 0x8D, 0xEC,
+    0xF5, 0x94, 0x4C, 0x66, 0x90, 0xFC, 0x08, 0xED, 0x6E, 0x7D, 0xD0, 0xD6,
+    0x93, 0x62, 0x94, 0x86, 0xFB, 0xBA, 0x6F, 0x06, 0xD5, 0x26, 0xAD, 0x52,
+    0x84, 0x5A, 0x68, 0x52, 0xF1, 0xA9, 0x46, 0x04, 0x78, 0xC0, 0xA1, 0x0F,
+    0x72, 0xCE, 0x1C, 0xB3, 0xD2, 0x34, 0xFA, 0x28, 0xD0, 0xA6, 0x2D, 0xDF,
+    0xDF, 0x0C, 0x6C, 0x30, 0xCF, 0xF3, 0x67, 0x0E, 0xCE, 0xDD, 0x2D, 0x02,
+    0x20, 0x05, 0x7D, 0x7F, 0x81, 0x19, 0xBC, 0x42, 0x74, 0xC0, 0x11, 0xC4,
+    0x7F, 0x31, 0x0B, 0x63, 0xE7, 0x2E, 0xFE, 0xA4, 0x20, 0xE5, 0xD8, 0x19,
+    0xE1, 0xBE, 0x25, 0x41, 0x88, 0xFA, 0xBB, 0x51, 0xFF, 0x84, 0x9E, 0x37,
+    0x03, 0xAE, 0xAF, 0x41, 0x4E, 0x4B, 0x75, 0xF8, 0x73, 0x79, 0x20, 0x2B,
+    0xA0, 0xE9, 0xFC, 0xD6, 0x03, 0x50, 0x1B, 0x2A, 0x6B, 0x31, 0xE8, 0x75,
+    0x13, 0xB6, 0xEC, 0xE4, 0x5D, 0x2A, 0x3E, 0xE5, 0x49, 0x44, 0xBF, 0xE2,
+    0xC2, 0x4A, 0x7B, 0xC8, 0xC2, 0xC9, 0x89, 0xEF, 0x1A, 0x67, 0x37, 0xB7,
+    0x52, 0x93, 0x86, 0x69, 0xA4, 0x1A, 0x2C, 0x69, 0xD2, 0x03, 0x93, 0x15,
+    0x02, 0x97, 0xB6, 0xF7, 0x55, 0x87, 0x5B, 0xAA, 0x73, 0x12, 0x3F, 0xDD,
+    0x32, 0x16, 0x3B, 0x8E, 0xD9, 0xD9, 0x49, 0x06, 0x65, 0xAD, 0x28, 0x49,
+    0xEA, 0x0F, 0x7E, 0x6A, 0x04, 0xF7, 0x89, 0x79, 0x8F, 0xCE, 0x3E, 0xD2,
+    0x89, 0x6C, 0x43, 0x4B, 0x34, 0xBF, 0x42, 0x65, 0x2B, 0x09, 0x2F, 0x5C,
+    0xCA, 0x46, 0x1C, 0x22, 0x36, 0x78, 0xEA, 0x98, 0x49, 0xA4, 0x0E, 0xAB,
+    0x97, 0x0A, 0x76, 0xCD, 0x52, 0x99, 0x42, 0x44, 0xC2, 0x52, 0x40, 0x62,
+    0x34, 0xC4, 0xCD, 0xE3, 0x3D, 0xCA, 0xE1, 0x33, 0x99, 0xE9, 0xF4, 0x6E,
+    0xEB, 0xB0, 0x5D, 0xA5, 0x84, 0xA2, 0x5C, 0xC7, 0xBB, 0x14, 0x67, 0x0C,
+    0x4F, 0x02, 0x03, 0x01, 0x00, 0x01};
+
+// Verifies signature of the data using built-in public key.
+bool VerifySignature(const std::string& signature, const std::string& data) {
+  if (signature.size() != 256)
+    return false;
+
+  crypto::SignatureVerifier verifier;
+  crypto::SignatureVerifier::HashAlgorithm hash_alg =
+      crypto::SignatureVerifier::SHA256;
+  crypto::SignatureVerifier::HashAlgorithm mask_hash_alg = hash_alg;
+  unsigned int hash_len = 32;
+
+  if (!verifier.VerifyInitRSAPSS(
+          hash_alg,
+          mask_hash_alg,
+          hash_len,
+          reinterpret_cast<const uint8*>(signature.data()),
+          signature.size(),
+          kPublicKey,
+          sizeof(kPublicKey))) {
+    return false;
+  }
+
+  verifier.VerifyUpdate(reinterpret_cast<const uint8*>(data.data()),
+                        data.size());
+
+  return verifier.VerifyFinal();
+}
 
 }  // namespace
 
-base::StringPiece GetTrustedICAPublicKey(const base::StringPiece& data) {
-  scoped_refptr<net::X509Certificate> ica_cert =
-      net::X509Certificate::CreateFromBytes(data.data(), data.size());
-  if (!ica_cert.get()) {
-    LOG(ERROR) << "Couldn't create X509Certificate from bytes.";
-    return base::StringPiece();
+AuthorityKeyStore::AuthorityKeyStore() {
+  for (size_t i = 0; i < arraysize(kAllowedICAs); i++) {
+    certificate_authorities_.insert(
+        make_pair(*(kAllowedICAs[i].fingerprint),
+                  base::StringPiece(
+                      reinterpret_cast<const char*>(kAllowedICAs[i].public_key),
+                      kAllowedICAs[i].public_key_size)));
   }
+}
+
+AuthorityKeyStore::~AuthorityKeyStore() {
+}
+
+base::StringPiece AuthorityKeyStore::GetICAPublicKeyFromFingerprint(
+    const net::SHA256HashValue& fingerprint) {
+  AuthorityKeysMap::const_iterator it =
+      certificate_authorities_.find(fingerprint);
+  return (it == certificate_authorities_.end()) ? base::StringPiece()
+                                                : (*it).second;
+}
 
-  const net::SHA1HashValue& fingerprint = ica_cert->fingerprint();
-  for (const auto& next_ica : kAllowedICAs) {
-    if (next_ica.fingerprint->Equals(fingerprint)) {
-      return base::StringPiece(
-          reinterpret_cast<const char*>(next_ica.public_key),
-          next_ica.public_key_len);
+base::StringPiece AuthorityKeyStore::GetDefaultICAPublicKey() {
+  return GetICAPublicKeyFromFingerprint(kFingerprintICA1);
+}
+
+bool AuthorityKeyStore::Load(const std::string& keys) {
+  certificate_authorities_.clear();
+  authority_keys_.reset(new proto::AuthorityKeys());
+
+  if (!authority_keys_->ParseFromString(keys))
+    return false;
+
+  for (int i = 0; i < authority_keys_->keys_size(); i++) {
+    const std::string& fingerprint = authority_keys_->keys(i).fingerprint();
+    net::SHA256HashValue hash;
+    // Ensure it's the size of SHA-256 fingerprint data.
+    if (fingerprint.size() != sizeof(hash.data)) {
+      return false;
     }
+    memcpy(hash.data, fingerprint.data(), sizeof(hash.data));
+    const std::string& public_key = authority_keys_->keys(i).public_key();
+    certificate_authorities_.insert(
+        make_pair(hash, base::StringPiece(public_key)));
   }
 
-  LOG(ERROR) << "Couldn't get ICA from fingerprint.";
-  return base::StringPiece();
+  return true;
+}
+
+// Trusted certificate authorities.
+static base::LazyInstance<AuthorityKeyStore>::Leaky g_authority_keys_store =
+    LAZY_INSTANCE_INITIALIZER;
+
+bool SetTrustedCertificateAuthorities(const std::string& keys,
+                                      const std::string& signature) {
+  std::string decoded_keys;
+  if (!base::Base64Decode(keys, &decoded_keys))
+    return false;
+
+  std::string decoded_signature;
+  if (!base::Base64Decode(signature, &decoded_signature))
+    return false;
+
+  if (!VerifySignature(decoded_signature, decoded_keys))
+    return false;
+
+  return g_authority_keys_store.Get().Load(decoded_keys);
+}
+
+base::StringPiece GetTrustedICAPublicKey(const base::StringPiece& data) {
+  AuthorityKeyStore& authority_keys_store = g_authority_keys_store.Get();
+  scoped_refptr<net::X509Certificate> ica_cert =
+      net::X509Certificate::CreateFromBytes(data.data(), data.size());
+  return authority_keys_store.GetICAPublicKeyFromFingerprint(
+      net::X509Certificate::CalculateFingerprint256(
+          ica_cert->os_cert_handle()));
 }
 
 base::StringPiece GetDefaultTrustedICAPublicKey() {
-  return base::StringPiece(
-      reinterpret_cast<const char*>(kAllowedICAs[0].public_key),
-      kAllowedICAs[0].public_key_len);
+  AuthorityKeyStore& authority_keys_store = g_authority_keys_store.Get();
+  return authority_keys_store.GetDefaultICAPublicKey();
 }
 
 }  // namespace cast_channel