[webcrypto] Implement RSA-PSS using BoringSSL.

content/child/webcrypto/webcrypto_util.cc

 // 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 "content/child/webcrypto/webcrypto_util.h"
 
 #include "base/logging.h"
 #include "base/strings/stringprintf.h"
 #include "content/child/webcrypto/status.h"
 #include "third_party/WebKit/public/platform/WebCryptoAlgorithm.h"
@@ skipping 101 matching lines @@
   DCHECK(blink::WebCryptoAlgorithm::isHash(hash_id));
   return blink::WebCryptoAlgorithm::adoptParamsAndCreate(
       blink::WebCryptoAlgorithmIdHmac,
       new blink::WebCryptoHmacImportParams(CreateAlgorithm(hash_id)));
 }
 
 blink::WebCryptoAlgorithm CreateRsaHashedImportAlgorithm(
     blink::WebCryptoAlgorithmId id,
     blink::WebCryptoAlgorithmId hash_id) {
   DCHECK(blink::WebCryptoAlgorithm::isHash(hash_id));
-  DCHECK(id == blink::WebCryptoAlgorithmIdRsaSsaPkcs1v1_5 ||
-         id == blink::WebCryptoAlgorithmIdRsaOaep);
   return blink::WebCryptoAlgorithm::adoptParamsAndCreate(
       id, new blink::WebCryptoRsaHashedImportParams(CreateAlgorithm(hash_id)));
 }
 
 bool ContainsKeyUsages(blink::WebCryptoKeyUsageMask a,
                        blink::WebCryptoKeyUsageMask b) {
   return (a & b) == b;
 }
 
 // TODO(eroman): Move this helper to WebCryptoKey.
 bool KeyUsageAllows(const blink::WebCryptoKey& key,
                     const blink::WebCryptoKeyUsage usage) {
   return ((key.usages() & usage) != 0);
 }
 
 bool IsAlgorithmRsa(blink::WebCryptoAlgorithmId alg_id) {
   return alg_id == blink::WebCryptoAlgorithmIdRsaOaep ||
-         alg_id == blink::WebCryptoAlgorithmIdRsaSsaPkcs1v1_5;
+         alg_id == blink::WebCryptoAlgorithmIdRsaSsaPkcs1v1_5 ||
+         alg_id == blink::WebCryptoAlgorithmIdRsaPss;
 }
 
 bool IsAlgorithmAsymmetric(blink::WebCryptoAlgorithmId alg_id) {
   // TODO(padolph): include all other asymmetric algorithms once they are
   // defined, e.g. EC and DH.
   return IsAlgorithmRsa(alg_id);
 }
 
 // The WebCrypto spec defines the default value for the tag length, as well as
 // the allowed values for tag length.
@@ skipping 97 matching lines @@
   // avoid feeding OpenSSL data that will hang use a whitelist.
   if (*public_exponent != 3 && *public_exponent != 65537)
     return Status::ErrorGenerateKeyPublicExponent();
 
   return Status::Success();
 }
 
 }  // namespace webcrypto
 
 }  // namespace content