content/child/webcrypto/openssl/sym_key_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/sym_key_openssl.h"
   6
   7 #include <vector>
   8 #include <openssl/rand.h>
   9
  10 #include "content/child/webcrypto/crypto_data.h"
  11 #include "content/child/webcrypto/generate_key_result.h"
  12 #include "content/child/webcrypto/openssl/key_openssl.h"
  13 #include "content/child/webcrypto/status.h"
  14 #include "crypto/openssl_util.h"
  15 #include "third_party/WebKit/public/platform/WebCryptoKeyAlgorithm.h"
  16
  17 namespace content {
  18
  19 namespace webcrypto {
  20
  21 Status GenerateSecretKeyOpenSsl(const blink::WebCryptoKeyAlgorithm& algorithm,
  22                                 bool extractable,
  23                                 blink::WebCryptoKeyUsageMask usages,
  24                                 unsigned keylen_bytes,
  25                                 GenerateKeyResult* result) {
  26   crypto::OpenSSLErrStackTracer err_tracer(FROM_HERE);
  27
  28   std::vector<unsigned char> random_bytes(keylen_bytes, 0);
  29
  30   if (keylen_bytes > 0) {
  31     if (!(RAND_bytes(&random_bytes[0], keylen_bytes)))
  32       return Status::OperationError();
  33   }
  34
  35   result->AssignSecretKey(
  36       blink::WebCryptoKey::create(new SymKeyOpenSsl(CryptoData(random_bytes)),
  37                                   blink::WebCryptoKeyTypeSecret,
  38                                   extractable,
  39                                   algorithm,
  40                                   usages));
  41
  42   return Status::Success();
  43 }
  44
  45 Status ImportKeyRawOpenSsl(const CryptoData& key_data,
  46                            const blink::WebCryptoKeyAlgorithm& algorithm,
  47                            bool extractable,
  48                            blink::WebCryptoKeyUsageMask usages,
  49                            blink::WebCryptoKey* key) {
  50   *key = blink::WebCryptoKey::create(new SymKeyOpenSsl(key_data),
  51                                      blink::WebCryptoKeyTypeSecret,
  52                                      extractable,
  53                                      algorithm,
  54                                      usages);
  55   return Status::Success();
  56 }
  57
  58 }  // namespace webcrypto
  59
  60 }  // namespace content