[webcrypto] JWK: Reject keys with non-minimal bigintegers.

content/child/webcrypto/status.h

 // 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.
 
 #ifndef CONTENT_CHILD_WEBCRYPTO_STATUS_H_
 #define CONTENT_CHILD_WEBCRYPTO_STATUS_H_
 
 #include <string>
 #include "content/common/content_export.h"
 #include "third_party/WebKit/public/platform/WebCrypto.h"
@@ skipping 85 matching lines @@
   // The "kty" parameter was given and was a string, however it was not the
   // expected value.
   static Status ErrorJwkUnexpectedKty(const std::string& expected);
 
   // The amount of key data provided was incompatible with the selected
   // algorithm. For instance if the algorith name was A128CBC then EXACTLY
   // 128-bits of key data must have been provided. If 192-bits of key data were
   // given that is an error.
   static Status ErrorJwkIncorrectKeyLength();
 
-  // The JWK was for an RSA private key but only partially provided the optional
-  // parameters (p, q, dq, dq, qi).
-  static Status ErrorJwkIncompleteOptionalRsaPrivateKey();
+  // The JWK property |property| is supposed to represent a big-endian unsigned
+  // integer, however was the empty string.
+  static Status ErrorJwkEmptyBigInteger(const std::string& property);
+
+  // The big-endian unsigned integer |property| contained leading zeros. This
+  // violates the JWA requirement that such octet strings be minimal.
+  static Status ErrorJwkBigIntegerHasLeadingZero(const std::string& property);
 
   // ------------------------------------
   // Other errors
   // ------------------------------------
 
   // No key data was provided when importing an spki, pkcs8, or jwk formatted
   // key. This does not apply to raw format, since it is possible to have empty
   // key data there.
   static Status ErrorImportEmptyKeyData();
 
@@ skipping 88 matching lines @@
   Type type_;
   blink::WebCryptoErrorType error_type_;
   std::string error_details_;
 };
 
 }  // namespace webcrypto
 
 }  // namespace content
 
 #endif  // CONTENT_CHILD_WEBCRYPTO_STATUS_H_