1 /***************************************************************************
2 * Copyright (C) 2005-2018 by the Quassel Project *
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5 * This program is free software; you can redistribute it and/or modify *
6 * it under the terms of the GNU General Public License as published by *
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8 * (at your option) version 3. *
10 * This program is distributed in the hope that it will be useful, *
11 * but WITHOUT ANY WARRANTY; without even the implied warranty of *
12 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the *
13 * GNU General Public License for more details. *
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17 * Free Software Foundation, Inc., *
18 * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. *
19 ***************************************************************************/
25 #include <QCryptographicHash>
27 Storage::Storage(QObject *parent)
32 QString Storage::hashPassword(const QString &password)
34 return hashPasswordSha2_512(password);
37 bool Storage::checkHashedPassword(const UserId user, const QString &password, const QString &hashedPassword, const Storage::HashVersion version)
39 bool passwordCorrect = false;
42 case Storage::HashVersion::Sha1:
43 passwordCorrect = checkHashedPasswordSha1(password, hashedPassword);
46 case Storage::HashVersion::Sha2_512:
47 passwordCorrect = checkHashedPasswordSha2_512(password, hashedPassword);
51 qWarning() << "Password hash version" << QString(version) << "is not supported, please reset password";
54 if (passwordCorrect && version < Storage::HashVersion::Latest) {
55 updateUser(user, password);
58 return passwordCorrect;
61 QString Storage::hashPasswordSha1(const QString &password)
63 return QString(QCryptographicHash::hash(password.toUtf8(), QCryptographicHash::Sha1).toHex());
66 bool Storage::checkHashedPasswordSha1(const QString &password, const QString &hashedPassword)
68 return hashPasswordSha1(password) == hashedPassword;
71 QString Storage::hashPasswordSha2_512(const QString &password)
73 // Generate a salt of 512 bits (64 bytes) using the Mersenne Twister
74 std::random_device seed;
75 std::mt19937 generator(seed());
76 std::uniform_int_distribution<int> distribution(0, 255);
79 for (int i = 0; i < 64; i++) {
80 saltBytes[i] = (unsigned char) distribution(generator);
82 QString salt(saltBytes.toHex());
84 // Append the salt to the password, hash the result, and append the salt value
85 return sha2_512(password + salt) + ":" + salt;
88 bool Storage::checkHashedPasswordSha2_512(const QString &password, const QString &hashedPassword)
90 QRegExp colonSplitter("\\:");
91 QStringList hashedPasswordAndSalt = hashedPassword.split(colonSplitter);
93 if (hashedPasswordAndSalt.size() == 2){
94 return sha2_512(password + hashedPasswordAndSalt[1]) == hashedPasswordAndSalt[0];
97 qWarning() << "Password hash and salt were not in the correct format";
102 QString Storage::sha2_512(const QString &input)
104 return QString(QCryptographicHash::hash(input.toUtf8(), QCryptographicHash::Sha512).toHex());