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Add support for Twofish in KeePass2 code

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Timothy Redaelli 2015-08-04 15:18:41 +02:00 • committed by Janek Bevendorff
parent a3fd3205a9
commit a01607e869
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GPG key ID: CFEC2F6850BFFA53
5 changed files with 29 additions and 4 deletions
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1
src/format/KeePass2.h
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@ -33,6 +33,7 @@ namespace KeePass2
const QSysInfo::Endian BYTEORDER = QSysInfo::LittleEndian;
const Uuid CIPHER_AES = Uuid(QByteArray::fromHex("31c1f2e6bf714350be5805216afc5aff"));
const Uuid CIPHER_TWOFISH = Uuid(QByteArray::fromHex("ad68f29f576f4bb9a36ad47af965346c"));
const QByteArray INNER_STREAM_SALSA20_IV("\xE8\x30\x09\x4B\x97\x20\x5D\x2A");

4
src/format/KeePass2Reader.cpp
View file

@ -118,7 +118,7 @@ Database* KeePass2Reader::readDatabase(QIODevice* device, const CompositeKey& ke
hash.addData(m_db->transformedMasterKey());
QByteArray finalKey = hash.result();
SymmetricCipherStream cipherStream(m_device, SymmetricCipher::Aes256,
SymmetricCipherStream cipherStream(m_device, SymmetricCipher::cipherToAlgorithm(m_db->cipher()),
SymmetricCipher::Cbc, SymmetricCipher::Decrypt);
if (!cipherStream.init(finalKey, m_encryptionIV)) {
raiseError(cipherStream.errorString());
@ -330,7 +330,7 @@ void KeePass2Reader::setCipher(const QByteArray& data)
else {
Uuid uuid(data);
if (uuid != KeePass2::CIPHER_AES) {
if (uuid != KeePass2::CIPHER_AES && uuid != KeePass2::CIPHER_TWOFISH) {
raiseError("Unsupported cipher");
}
else {

4
src/format/KeePass2Writer.cpp
View file

@ -87,8 +87,8 @@ void KeePass2Writer::writeDatabase(QIODevice* device, Database* db)
QByteArray headerHash = CryptoHash::hash(header.data(), CryptoHash::Sha256);
CHECK_RETURN(writeData(header.data()));
SymmetricCipherStream cipherStream(device, SymmetricCipher::Aes256, SymmetricCipher::Cbc,
SymmetricCipher::Encrypt);
SymmetricCipherStream cipherStream(device, SymmetricCipher::cipherToAlgorithm(db->cipher()),
SymmetricCipher::Cbc, SymmetricCipher::Encrypt);
cipherStream.init(finalKey, encryptionIV);
if (!cipherStream.open(QIODevice::WriteOnly)) {
raiseError(cipherStream.errorString());