components/webcrypto/algorithms/rsa_ssa.cc

   1 // Copyright 2014 The Chromium Authors. All rights reserved.
   2 // Use of this source code is governed by a BSD-style license that can be
   3 // found in the LICENSE file.
   4
   5 #include "components/webcrypto/algorithms/rsa.h"
   6 #include "components/webcrypto/algorithms/rsa_sign.h"
   7 #include "components/webcrypto/status.h"
   8
   9 namespace webcrypto {
  10
  11 namespace {
  12
  13 class RsaSsaImplementation : public RsaHashedAlgorithm {
  14  public:
  15   RsaSsaImplementation()
  16       : RsaHashedAlgorithm(blink::WebCryptoKeyUsageVerify,
  17                            blink::WebCryptoKeyUsageSign) {}
  18
  19   const char* GetJwkAlgorithm(
  20       const blink::WebCryptoAlgorithmId hash) const override {
  21     switch (hash) {
  22       case blink::WebCryptoAlgorithmIdSha1:
  23         return "RS1";
  24       case blink::WebCryptoAlgorithmIdSha256:
  25         return "RS256";
  26       case blink::WebCryptoAlgorithmIdSha384:
  27         return "RS384";
  28       case blink::WebCryptoAlgorithmIdSha512:
  29         return "RS512";
  30       default:
  31         return NULL;
  32     }
  33   }
  34
  35   Status Sign(const blink::WebCryptoAlgorithm& algorithm,
  36               const blink::WebCryptoKey& key,
  37               const CryptoData& data,
  38               std::vector<uint8_t>* buffer) const override {
  39     return RsaSign(key, 0, data, buffer);
  40   }
  41
  42   Status Verify(const blink::WebCryptoAlgorithm& algorithm,
  43                 const blink::WebCryptoKey& key,
  44                 const CryptoData& signature,
  45                 const CryptoData& data,
  46                 bool* signature_match) const override {
  47     return RsaVerify(key, 0, signature, data, signature_match);
  48   }
  49 };
  50
  51 }  // namespace
  52
  53 scoped_ptr<AlgorithmImplementation> CreateRsaSsaImplementation() {
  54   return make_scoped_ptr(new RsaSsaImplementation);
  55 }
  56
  57 }  // namespace webcrypto