adaptions to changes in KeePassLib

src/KeePassLib2Android/Cryptography/KeyDerivation/AesKdf.cs

@@ -122,7 +122,7 @@ namespace KeePassLib.Cryptography.KeyDerivation
 				// Try to use the native library first
 				if(NativeLib.TransformKey256(pbNewKey, pbKeySeed32, uNumRounds))
 					return CryptoUtil.HashSha256(pbNewKey);
-
+				
 				if(TransformKeyManaged(pbNewKey, pbKeySeed32, uNumRounds))
 					return CryptoUtil.HashSha256(pbNewKey);
 			}

src/Kp2aBusinessLogic/database/KdbDatabaseFormat.cs

@@ -13,10 +13,10 @@ using Java.Util;
 using KeePassLib;
 using KeePassLib.Cryptography;
 using KeePassLib.Cryptography.Cipher;
+using KeePassLib.Cryptography.KeyDerivation;
 using KeePassLib.Interfaces;
 using KeePassLib.Keys;
 using KeePassLib.Security;
-using Exception = System.Exception;
 using PwIcon = KeePassLib.PwIcon;
 using Random = System.Random;
 
@@ -63,7 +63,10 @@ namespace keepass2android
 				var dbv3 = importer.OpenDatabase(hashingStream, password, keyfileStream);
 
 				db.Name = dbv3.Name;
-				db.KeyEncryptionRounds = (ulong) dbv3.NumKeyEncRounds;
+				db.KdfParameters = (new AesKdf()).GetDefaultParameters();
+				db.KdfParameters.SetUInt64(AesKdf.ParamRounds, (ulong)dbv3.NumKeyEncRounds);
+			
+
 				db.RootGroup = ConvertGroup(dbv3.RootGroup);
 				if (dbv3.Algorithm == PwEncryptionAlgorithm.Rjindal)
 				{
@@ -235,7 +238,20 @@ namespace keepass2android
 				keyfileContents = new MemoryStream(keyfile.RawFileData.ReadData());
 			}
 			db.SetMasterKey(password, keyfileContents);
-			db.NumRounds = (long) kpDatabase.KeyEncryptionRounds;
+
+			AesKdf kdf = new AesKdf();
+			if (!kdf.Uuid.Equals(kpDatabase.KdfParameters.KdfUuid))
+				db.NumRounds = (uint)PwDefs.DefaultKeyEncryptionRounds;
+			else
+			{
+				ulong uRounds = kpDatabase.KdfParameters.GetUInt64(
+					AesKdf.ParamRounds, PwDefs.DefaultKeyEncryptionRounds);
+				uRounds = Math.Min(uRounds, 0xFFFFFFFEUL);
+
+				db.NumRounds = (uint)uRounds;
+			}
+			
+			
 			db.Name = kpDatabase.Name;
 			if (kpDatabase.DataCipherUuid.Equals(StandardAesEngine.AesUuid))
 			{

src/Kp2aBusinessLogic/database/edit/CreateDB.cs

@@ -18,6 +18,7 @@ This file is part of Keepass2Android, Copyright 2013 Philipp Crocoll. This file
 using System.Collections.Generic;
 using Android.Content;
 using KeePassLib;
+using KeePassLib.Cryptography.KeyDerivation;
 using KeePassLib.Serialization;
 using KeePassLib.Keys;
 
@@ -65,7 +66,7 @@ namespace keepass2android
 			
 			db.KpDatabase.New(_ioc, _key);
 
-			db.KpDatabase.KeyEncryptionRounds = DefaultEncryptionRounds;
+			db.KpDatabase.KdfParameters = (new AesKdf()).GetDefaultParameters();
 			db.KpDatabase.Name = "Keepass2Android Password Database";
 			//re-set the name of the root group because the PwDatabase uses UrlUtil which is not appropriate for all file storages:
 			db.KpDatabase.RootGroup.Name = _app.GetFileStorage(_ioc).GetFilenameWithoutPathAndExt(_ioc);

src/keepass2android/addons/OtpKeyProv/OtpUtil.cs

@@ -26,6 +26,7 @@ using System.Diagnostics;
 
 using KeePassLib.Cryptography;
 using KeePassLib.Cryptography.Cipher;
+using KeePassLib.Cryptography.KeyDerivation;
 using KeePassLib.Keys;
 using KeePassLib.Utility;
 
@@ -72,7 +73,7 @@ namespace OtpKeyProv
 			Array.Copy(pbData, pbEnc, pbData.Length);
 
 			Salsa20Cipher enc = new Salsa20Cipher(pbKey32, pbIV8);
-			enc.Encrypt(pbEnc, pbEnc.Length, true);
+			enc.Encrypt(pbEnc, 0, pbEnc.Length);
 
 			return ("s20://" + Convert.ToBase64String(pbEnc,
 				Base64FormattingOptions.None));
@@ -90,7 +91,7 @@ namespace OtpKeyProv
 			Array.Copy(pbIV16, 0, pbIV8, 0, 8);
 
 			Salsa20Cipher dec = new Salsa20Cipher(pbKey32, pbIV8);
-			dec.Encrypt(pb, pb.Length, true);
+			dec.Encrypt(pb, 0, pb.Length);
 
 			return pb;
 		}
@@ -102,7 +103,7 @@ namespace OtpKeyProv
 			byte[] pbHash = sha256.ComputeHash(pbData);
 			sha256.Clear();
 
-			if(!CompositeKey.TransformKeyManaged(pbHash, pbTrfKey32, uTrfRounds))
+			if(!AesKdf.TransformKeyManaged(pbHash, pbTrfKey32, uTrfRounds))
 				return null;
 
 			sha256 = new SHA256Managed();

src/keepass2android/settings/DatabaseSettingsActivity.cs

@@ -344,11 +344,11 @@ namespace keepass2android
             Database db = App.Kp2a.GetDb();
             if (db.Loaded)
             {
-                Preference rounds = FindPreference(GetString(Resource.String.rounds_key));
+                /*Preference rounds = FindPreference(GetString(Resource.String.rounds_key));
                 rounds.PreferenceChange += (sender, e) => SetRounds(db, e.Preference);
                 rounds.Enabled = db.CanWrite;
                 SetRounds(db, rounds);
-
+				*/
                 PrepareDefaultUsername(db);
                 PrepareDatabaseName(db);
                 PrepareMasterPassword();
@@ -797,11 +797,11 @@ namespace keepass2android
             return targetIoc;
         }
 
-
+		/*
         private void SetRounds(Database db, Preference rounds)
         {
             rounds.Summary = db.KpDatabase.KeyEncryptionRounds.ToString(CultureInfo.InvariantCulture);
-        }
+        }*/
 
         private void SetAlgorithm(Database db, Preference algorithm)
         {

src/keepass2android/settings/RoundsPreference.cs

@@ -23,6 +23,7 @@ using Android.Widget;
 using Android.Preferences;
 using KeePassLib;
 using Android.Util;
+using KeePassLib.Cryptography.KeyDerivation;
 
 namespace keepass2android.settings
 {
@@ -37,14 +38,33 @@ namespace keepass2android.settings
 			View view =  base.OnCreateDialogView();
 			
 			RoundsView = (TextView) view.FindViewById(Resource.Id.rounds);
-			
-			Database db = App.Kp2a.GetDb();
-			ulong numRounds = db.KpDatabase.KeyEncryptionRounds;
+
+
+			ulong numRounds = KeyEncryptionRounds;
 			RoundsView.Text = numRounds.ToString(CultureInfo.InvariantCulture);
 
 			return view;
 		}
-		
+
+		public ulong KeyEncryptionRounds
+		{
+			get
+			{
+				AesKdf kdf = new AesKdf();
+				if (!kdf.Uuid.Equals(App.Kp2a.GetDb().KpDatabase.KdfParameters.KdfUuid))
+					return (uint) PwDefs.DefaultKeyEncryptionRounds;
+				else
+				{
+					ulong uRounds = App.Kp2a.GetDb().KpDatabase.KdfParameters.GetUInt64(
+						AesKdf.ParamRounds, PwDefs.DefaultKeyEncryptionRounds);
+					uRounds = Math.Min(uRounds, 0xFFFFFFFEUL);
+
+					return (uint) uRounds;
+				}
+			}
+			set { App.Kp2a.GetDb().KpDatabase.KdfParameters.SetUInt64(AesKdf.ParamRounds, value); }
+		}
+
 		public RoundsPreference(Context context, IAttributeSet attrs):base(context, attrs) {
 		}
 		
@@ -70,14 +90,14 @@ namespace keepass2android.settings
 
 				Database db = App.Kp2a.GetDb();
 
-				ulong oldRounds = db.KpDatabase.KeyEncryptionRounds;
+				ulong oldRounds = KeyEncryptionRounds;
 
 				if (oldRounds == rounds)
 				{
 					return;
 				}
 
-				db.KpDatabase.KeyEncryptionRounds = rounds;
+				KeyEncryptionRounds = rounds;
 
 				Handler handler = new Handler();
 				SaveDb save = new SaveDb(Context, App.Kp2a, new AfterSave(Context, handler, oldRounds, this));
@@ -109,7 +129,7 @@ namespace keepass2android.settings
 				} else {
 					DisplayMessage(_ctx);
 
-					App.Kp2a.GetDb().KpDatabase.KeyEncryptionRounds = _oldRounds;
+					App.Kp2a.GetDb().KpDatabase.KdfParameters.SetUInt64(AesKdf.ParamRounds, _oldRounds);
 				}
 				
 				base.Run();