public void PopulateDatabaseFromStream(PwDatabase db, Stream s, IStatusLogger slLogger)
{
#if !EXCLUDE_KEYTRANSFORM
var importer = new Com.Keepassdroid.Database.Load.ImporterV3();
var hashingStream = new HashingStreamEx(s, false, new SHA256Managed());
_metaStreams = new List<PwEntryV3>();
string password = "";//no need to distinguish between null and "" because empty passwords are invalid (and null is not allowed)
KcpPassword passwordKey = (KcpPassword)db.MasterKey.GetUserKey(typeof(KcpPassword));
if (passwordKey != null)
{
password = passwordKey.Password.ReadString();
}
KcpKeyFile passwordKeyfile = (KcpKeyFile)db.MasterKey.GetUserKey(typeof(KcpKeyFile));
MemoryStream keyfileStream = null;
if (passwordKeyfile != null)
{
keyfileStream = new MemoryStream(passwordKeyfile.RawFileData.ReadData());
}
try
{
var dbv3 = importer.OpenDatabase(hashingStream, password, keyfileStream);
db.Name = dbv3.Name;
db.KeyEncryptionRounds = (ulong) dbv3.NumKeyEncRounds;
db.RootGroup = ConvertGroup(dbv3.RootGroup);
if (dbv3.Algorithm == PwEncryptionAlgorithm.Rjindal)
{
db.DataCipherUuid = StandardAesEngine.AesUuid;
}
else
{
db.DataCipherUuid = new PwUuid(TwofishCipher.TwofishCipherEngine.TwofishCipherUuidBytes);
}
}
catch (Java.IO.FileNotFoundException e)
{
throw new FileNotFoundException(
e.Message, e);
}
catch (Java.Lang.Exception e)
{
throw new Exception(e.LocalizedMessage ??
e.Message ??
e.GetType().Name, e);
}
HashOfLastStream = hashingStream.Hash;
if (HashOfLastStream == null)
throw new Exception("hashing didn't work"); //todo remove
#else
throw new Exception("Kdb is excluded with Key transform!");
#endif
}
public void PopulateDatabaseFromStream(PwDatabase db, Stream s, IStatusLogger slLogger)
{
#if !EXCLUDE_KEYTRANSFORM
var importer = new Com.Keepassdroid.Database.Load.ImporterV3();
var hashingStream = new HashingStreamEx(s, false, new SHA256Managed());
_metaStreams = new List <PwEntryV3>();
string password = ""; //no need to distinguish between null and "" because empty passwords are invalid (and null is not allowed)
KcpPassword passwordKey = (KcpPassword)db.MasterKey.GetUserKey(typeof(KcpPassword));
if (passwordKey != null)
{
password = passwordKey.Password.ReadString();
}
KcpKeyFile passwordKeyfile = (KcpKeyFile)db.MasterKey.GetUserKey(typeof(KcpKeyFile));
MemoryStream keyfileStream = null;
if (passwordKeyfile != null)
{
keyfileStream = new MemoryStream(passwordKeyfile.RawFileData.ReadData());
}
try
{
var dbv3 = importer.OpenDatabase(hashingStream, password, keyfileStream);
db.Name = dbv3.Name;
db.KdfParameters = (new AesKdf()).GetDefaultParameters();
db.KdfParameters.SetUInt64(AesKdf.ParamRounds, (ulong)dbv3.NumKeyEncRounds);
db.RootGroup = ConvertGroup(dbv3.RootGroup);
if (dbv3.Algorithm == PwEncryptionAlgorithm.Rjindal)
{
db.DataCipherUuid = StandardAesEngine.AesUuid;
}
else
{
db.DataCipherUuid = new PwUuid(TwofishCipher.TwofishCipherEngine.TwofishCipherUuidBytes);
}
}
catch (Java.IO.FileNotFoundException e)
{
throw new FileNotFoundException(
e.Message, e);
}
catch (Java.Lang.Exception e)
{
if (e.Message == "Invalid key!")
{
throw new InvalidCompositeKeyException();
}
throw new Exception(e.LocalizedMessage ??
e.Message ??
e.GetType().Name, e);
}
HashOfLastStream = hashingStream.Hash;
if (HashOfLastStream == null)
{
throw new Exception("hashing didn't work"); //todo remove
}
#else
throw new Exception("Kdb is excluded with Key transform!");
#endif
}
