blob: 4ae421081ad2b19ac0f0a083492624ff6a69207f [file] [log] [blame] [edit]
// Copyright (c) 2009-2010 The Chromium OS 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 "username_passkey.h"
#include <openssl/sha.h>
#include <base/logging.h>
#include <chromeos/utility.h>
#include "crypto.h"
namespace cryptohome {
using std::string;
UsernamePasskey::UsernamePasskey(const char *username,
const chromeos::Blob& passkey)
: username_(username, strlen(username)),
passkey_() {
passkey_.assign(passkey.begin(), passkey.end());
}
UsernamePasskey::~UsernamePasskey() {
}
void UsernamePasskey::Assign(const Credentials& rhs) {
username_.assign(rhs.GetFullUsernameString());
SecureBlob passkey;
rhs.GetPasskey(&passkey);
passkey_.assign(passkey.begin(), passkey.end());
}
std::string UsernamePasskey::GetFullUsernameString() const {
return username_;
}
string UsernamePasskey::GetObfuscatedUsername(
const chromeos::Blob &system_salt) const {
CHECK(!username_.empty());
SHA_CTX ctx;
unsigned char md_value[SHA_DIGEST_LENGTH];
SHA1_Init(&ctx);
SHA1_Update(&ctx, &system_salt[0], system_salt.size());
SHA1_Update(&ctx, username_.c_str(), username_.length());
SHA1_Final(md_value, &ctx);
chromeos::Blob md_blob(md_value,
md_value + (SHA_DIGEST_LENGTH * sizeof(unsigned char)));
return chromeos::AsciiEncode(md_blob);
}
void UsernamePasskey::GetPasskey(SecureBlob* passkey) const {
*passkey = passkey_;
}
} // namespace cryptohome