Revert of Refactoring of Cast-related crypto code

chrome/common/extensions/api/networking_private/networking_private_crypto.cc

Index: chrome/common/extensions/api/networking_private/networking_private_crypto.cc
diff --git a/chrome/common/extensions/api/networking_private/networking_private_crypto.cc b/chrome/common/extensions/api/networking_private/networking_private_crypto.cc
index 66af2f980a428bf65ab860f294745e75e094a9ce..34c27766b5b89d1ee835ba47d22450ade40aebb9 100644
--- a/chrome/common/extensions/api/networking_private/networking_private_crypto.cc
+++ b/chrome/common/extensions/api/networking_private/networking_private_crypto.cc
@@ -4,82 +4,33 @@
 
 #include "chrome/common/extensions/api/networking_private/networking_private_crypto.h"
 
-#include "base/logging.h"
-#include "base/memory/scoped_ptr.h"
-#include "base/strings/string_util.h"
-#include "extensions/common/cast/cast_cert_validator.h"
-#include "net/cert/pem_tokenizer.h"
-
-namespace {
-
-namespace cast_crypto = ::extensions::core_api::cast_crypto;
-
-}  // namespace
-
 namespace networking_private_crypto {
 
-bool VerifyCredentials(
-    const std::string& certificate,
-    const std::vector<std::string>& intermediate_certificates,
-    const std::string& signature,
-    const std::string& data,
-    const std::string& connected_mac) {
-  static const char kErrorPrefix[] = "Device verification failed. ";
+const uint8 kTrustedCAPublicKeyDER[] = {
+    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};
 
-  std::vector<std::string> headers;
-  headers.push_back("CERTIFICATE");
-
-  // Convert certificate from PEM to raw DER
-  net::PEMTokenizer pem_tok(certificate, headers);
-  if (!pem_tok.GetNext()) {
-    LOG(ERROR) << kErrorPrefix << "Failed to parse device certificate.";
-    return false;
-  }
-  std::string der_certificate = pem_tok.data();
-
-  // Convert intermediate certificates from PEM to raw DER
-  std::vector<std::string> der_intermediate_certificates;
-  for (size_t idx = 0; idx < intermediate_certificates.size(); ++idx) {
-    net::PEMTokenizer ica_pem_tok(intermediate_certificates[idx], headers);
-    if (ica_pem_tok.GetNext()) {
-      der_intermediate_certificates.push_back(ica_pem_tok.data());
-    } else {
-      LOG(WARNING) << "Failed to parse intermediate certificates.";
-    }
-  }
-
-  // Verify device certificate
-  scoped_ptr<cast_crypto::CertVerificationContext> verification_context;
-  cast_crypto::VerificationResult verification_result =
-      cast_crypto::VerifyDeviceCert(der_certificate,
-                                    der_intermediate_certificates,
-                                    &verification_context);
-
-  if (verification_result.Failure()) {
-    LOG(ERROR) << kErrorPrefix << verification_result.GetLogString();
-    return false;
-  }
-
-  // Check that the device listed in the certificate is correct.
-  // Something like evt_e161 001a11ffacdf
-  std::string common_name = verification_context->GetCommonName();
-  std::string translated_mac;
-  base::RemoveChars(connected_mac, ":", &translated_mac);
-  if (!EndsWith(common_name, translated_mac, false)) {
-    LOG(ERROR) << kErrorPrefix << "MAC addresses don't match.";
-    return false;
-  }
-
-  // Use the public key from verified certificate to verify |signature| over
-  // |data|.
-  verification_result =
-      verification_context->VerifySignatureOverData(signature, data);
-
-  if (verification_result.Failure()) {
-    LOG(ERROR) << kErrorPrefix << verification_result.GetLogString();
-    return false;
-  }
-  return true;
-}
+const size_t kTrustedCAPublicKeyDERLength = sizeof(kTrustedCAPublicKeyDER);
 
 }  // namespace networking_private_crypto