content/child/webcrypto/openssl/rsa_pss_openssl.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 "content/child/webcrypto/openssl/rsa_hashed_algorithm_openssl.h"
   6 #include "content/child/webcrypto/openssl/rsa_sign_openssl.h"
   7 #include "content/child/webcrypto/status.h"
   8 #include "third_party/WebKit/public/platform/WebCryptoAlgorithmParams.h"
   9
  10 namespace content {
  11
  12 namespace webcrypto {
  13
  14 namespace {
  15
  16 class RsaPssImplementation : public RsaHashedAlgorithm {
  17  public:
  18   RsaPssImplementation()
  19       : RsaHashedAlgorithm(blink::WebCryptoKeyUsageVerify,
  20                            blink::WebCryptoKeyUsageSign) {}
  21
  22   const char* GetJwkAlgorithm(
  23       const blink::WebCryptoAlgorithmId hash) const override {
  24     switch (hash) {
  25       case blink::WebCryptoAlgorithmIdSha1:
  26         return "PS1";
  27       case blink::WebCryptoAlgorithmIdSha256:
  28         return "PS256";
  29       case blink::WebCryptoAlgorithmIdSha384:
  30         return "PS384";
  31       case blink::WebCryptoAlgorithmIdSha512:
  32         return "PS512";
  33       default:
  34         return NULL;
  35     }
  36   }
  37
  38   Status Sign(const blink::WebCryptoAlgorithm& algorithm,
  39               const blink::WebCryptoKey& key,
  40               const CryptoData& data,
  41               std::vector<uint8_t>* buffer) const override {
  42     return RsaSign(key, algorithm.rsaPssParams()->saltLengthBytes(), data,
  43                    buffer);
  44   }
  45
  46   Status Verify(const blink::WebCryptoAlgorithm& algorithm,
  47                 const blink::WebCryptoKey& key,
  48                 const CryptoData& signature,
  49                 const CryptoData& data,
  50                 bool* signature_match) const override {
  51     return RsaVerify(key, algorithm.rsaPssParams()->saltLengthBytes(),
  52                      signature, data, signature_match);
  53   }
  54 };
  55
  56 }  // namespace
  57
  58 AlgorithmImplementation* CreatePlatformRsaPssImplementation() {
  59   return new RsaPssImplementation;
  60 }
  61
  62 }  // namespace webcrypto
  63
  64 }  // namespace content