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Move key transform() call into Database.

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This commit is contained in:
Felix Geyer 2011-06-29 16:39:39 +02:00
parent fd9685037b
commit 6afda908bc
4 changed files with 17 additions and 17 deletions
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20
src/core/Database.cpp
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@ -21,6 +21,7 @@
#include <QtCore/QXmlStreamReader>
#include "Metadata.h"
#include "crypto/Random.h"
Database::Database()
{
@ -142,21 +143,18 @@ void Database::setCompressionAlgo(Database::CompressionAlgorithm algo)
m_compressionAlgo = algo;
}
void Database::setTransformSeed(const QByteArray& seed)
{
Q_ASSERT(seed.size() == 32);
m_transformSeed = seed;
}
void Database::setTransformRounds(quint64 rounds)
{
m_transformRounds = rounds;
}
void Database::setTransformedMasterKey(QByteArray& key)
void Database::setKey(const CompositeKey& key, const QByteArray& transformSeed)
{
Q_ASSERT(key.size() == 32);
m_transformedMasterKey = key;
m_transformSeed = transformSeed;
m_transformedMasterKey = key.transform(transformSeed, transformRounds());
}
void Database::setKey(const CompositeKey& key)
{
setKey(key, Random::randomArray(32));
}

6
src/core/Database.h
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@ -23,6 +23,8 @@
#include <QtCore/QHash>
#include <QtGui/QIcon>
#include "keys/CompositeKey.h"
class Metadata;
struct DeletedObject
@ -62,9 +64,9 @@ public:
void setCipher(const Uuid& cipher);
void setCompressionAlgo(Database::CompressionAlgorithm algo);
void setTransformSeed(const QByteArray& seed);
void setTransformRounds(quint64 rounds);
void setTransformedMasterKey(QByteArray& key);
void setKey(const CompositeKey& key, const QByteArray& transformSeed);
void setKey(const CompositeKey& key);
Q_SIGNALS:
void groupDataChanged(Group* group);

7
src/format/KeePass2Reader.cpp
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@ -64,12 +64,11 @@ Database* KeePass2Reader::readDatabase(QIODevice* device, const CompositeKey& ke
// TODO check if all header fields have been parsed
QByteArray transformedMasterKey = key.transform(m_db->transformSeed(), m_db->transformRounds());
m_db->setTransformedMasterKey(transformedMasterKey);
m_db->setKey(key, m_transformSeed);
CryptoHash hash(CryptoHash::Sha256);
hash.addData(m_masterSeed);
hash.addData(transformedMasterKey);
hash.addData(m_db->transformedMasterKey());
QByteArray finalKey = hash.result();
SymmetricCipherStream cipherStream(device, SymmetricCipher::Aes256, SymmetricCipher::Cbc, SymmetricCipher::Decrypt, finalKey, m_encryptionIV);
@ -261,7 +260,7 @@ void KeePass2Reader::setTransformSeed(const QByteArray& data)
raiseError("");
}
else {
m_db->setTransformSeed(data);
m_transformSeed = data;
}
}

1
src/format/KeePass2Reader.h
View File

@ -58,6 +58,7 @@ private:
Database* m_db;
QByteArray m_masterSeed;
QByteArray m_transformSeed;
QByteArray m_encryptionIV;
QByteArray m_streamStartBytes;
QByteArray m_protectedStreamKey;