Move crypto files out of base, to a top level directory.

base/crypto/symmetric_key_openssl.cc

-// Copyright (c) 2011 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 "base/crypto/symmetric_key.h"
-
-#include <openssl/evp.h>
-#include <openssl/rand.h>
-
-#include <algorithm>
-
-#include "base/logging.h"
-#include "base/memory/scoped_ptr.h"
-#include "base/openssl_util.h"
-#include "base/string_util.h"
-
-namespace base {
-
-SymmetricKey::~SymmetricKey() {
-  std::fill(key_.begin(), key_.end(), '\0');  // Zero out the confidential key.
-}
-
-// static
-SymmetricKey* SymmetricKey::GenerateRandomKey(Algorithm algorithm,
-                                              size_t key_size_in_bits) {
-  DCHECK_EQ(AES, algorithm);
-  int key_size_in_bytes = key_size_in_bits / 8;
-  DCHECK_EQ(static_cast<int>(key_size_in_bits), key_size_in_bytes * 8);
-
-  if (key_size_in_bits == 0)
-    return NULL;
-
-  OpenSSLErrStackTracer err_tracer(FROM_HERE);
-  scoped_ptr<SymmetricKey> key(new SymmetricKey);
-  uint8* key_data =
-      reinterpret_cast<uint8*>(WriteInto(&key->key_, key_size_in_bytes + 1));
-
-  int rv = RAND_bytes(key_data, key_size_in_bytes);
-  return rv == 1 ? key.release() : NULL;
-}
-
-// static
-SymmetricKey* SymmetricKey::DeriveKeyFromPassword(Algorithm algorithm,
-                                                  const std::string& password,
-                                                  const std::string& salt,
-                                                  size_t iterations,
-                                                  size_t key_size_in_bits) {
-  DCHECK(algorithm == AES || algorithm == HMAC_SHA1);
-  int key_size_in_bytes = key_size_in_bits / 8;
-  DCHECK_EQ(static_cast<int>(key_size_in_bits), key_size_in_bytes * 8);
-
-  OpenSSLErrStackTracer err_tracer(FROM_HERE);
-  scoped_ptr<SymmetricKey> key(new SymmetricKey);
-  uint8* key_data =
-      reinterpret_cast<uint8*>(WriteInto(&key->key_, key_size_in_bytes + 1));
-  int rv = PKCS5_PBKDF2_HMAC_SHA1(password.data(), password.length(),
-                                  reinterpret_cast<const uint8*>(salt.data()),
-                                  salt.length(), iterations,
-                                  key_size_in_bytes, key_data);
-  return rv == 1 ? key.release() : NULL;
-}
-
-// static
-SymmetricKey* SymmetricKey::Import(Algorithm algorithm,
-                                   const std::string& raw_key) {
-  scoped_ptr<SymmetricKey> key(new SymmetricKey);
-  key->key_ = raw_key;
-  return key.release();
-}
-
-bool SymmetricKey::GetRawKey(std::string* raw_key) {
-  *raw_key = key_;
-  return true;
-}
-
-}  // namespace base