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