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Unified Diff: base/crypto/encryptor_nss.cc

Issue 6805019: Move crypto files out of base, to a top level directory. (Closed) Base URL: svn://svn.chromium.org/chrome/trunk/src/
Patch Set: Fixes comments by eroman Created 9 years, 8 months ago
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Index: base/crypto/encryptor_nss.cc
===================================================================
--- base/crypto/encryptor_nss.cc (revision 81350)
+++ base/crypto/encryptor_nss.cc (working copy)
@@ -1,125 +0,0 @@
-// 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/encryptor.h"
-
-#include <cryptohi.h>
-#include <vector>
-
-#include "base/crypto/symmetric_key.h"
-#include "base/logging.h"
-#include "base/nss_util.h"
-
-namespace base {
-
-Encryptor::Encryptor()
- : key_(NULL),
- mode_(CBC) {
- EnsureNSSInit();
-}
-
-Encryptor::~Encryptor() {
-}
-
-bool Encryptor::Init(SymmetricKey* key, Mode mode, const std::string& iv) {
- DCHECK(key);
- DCHECK_EQ(CBC, mode);
-
- key_ = key;
- mode_ = mode;
-
- if (iv.size() != AES_BLOCK_SIZE)
- return false;
-
- slot_.reset(PK11_GetBestSlot(CKM_AES_CBC_PAD, NULL));
- if (!slot_.get())
- return false;
-
- SECItem iv_item;
- iv_item.type = siBuffer;
- iv_item.data = reinterpret_cast<unsigned char*>(
- const_cast<char *>(iv.data()));
- iv_item.len = iv.size();
-
- param_.reset(PK11_ParamFromIV(CKM_AES_CBC_PAD, &iv_item));
- if (!param_.get())
- return false;
-
- return true;
-}
-
-bool Encryptor::Encrypt(const std::string& plaintext, std::string* ciphertext) {
- ScopedPK11Context context(PK11_CreateContextBySymKey(CKM_AES_CBC_PAD,
- CKA_ENCRYPT,
- key_->key(),
- param_.get()));
- if (!context.get())
- return false;
-
- size_t ciphertext_len = plaintext.size() + AES_BLOCK_SIZE;
- std::vector<unsigned char> buffer(ciphertext_len);
-
- int op_len;
- SECStatus rv = PK11_CipherOp(context.get(),
- &buffer[0],
- &op_len,
- ciphertext_len,
- reinterpret_cast<unsigned char*>(
- const_cast<char*>(plaintext.data())),
- plaintext.size());
- if (SECSuccess != rv)
- return false;
-
- unsigned int digest_len;
- rv = PK11_DigestFinal(context.get(),
- &buffer[op_len],
- &digest_len,
- ciphertext_len - op_len);
- if (SECSuccess != rv)
- return false;
-
- ciphertext->assign(reinterpret_cast<char *>(&buffer[0]),
- op_len + digest_len);
- return true;
-}
-
-bool Encryptor::Decrypt(const std::string& ciphertext, std::string* plaintext) {
- if (ciphertext.empty())
- return false;
-
- ScopedPK11Context context(PK11_CreateContextBySymKey(CKM_AES_CBC_PAD,
- CKA_DECRYPT,
- key_->key(),
- param_.get()));
- if (!context.get())
- return false;
-
- size_t plaintext_len = ciphertext.size();
- std::vector<unsigned char> buffer(plaintext_len);
-
- int op_len;
- SECStatus rv = PK11_CipherOp(context.get(),
- &buffer[0],
- &op_len,
- plaintext_len,
- reinterpret_cast<unsigned char*>(
- const_cast<char*>(ciphertext.data())),
- ciphertext.size());
- if (SECSuccess != rv)
- return false;
-
- unsigned int digest_len;
- rv = PK11_DigestFinal(context.get(),
- &buffer[op_len],
- &digest_len,
- plaintext_len - op_len);
- if (SECSuccess != rv)
- return false;
-
- plaintext->assign(reinterpret_cast<char *>(&buffer[0]),
- op_len + digest_len);
- return true;
-}
-
-} // namespace base
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