2 * Copyright (c) 2016 Samsung Electronics Co., Ltd All Rights Reserved
4 * Licensed under the Apache License, Version 2.0 (the "License");
5 * you may not use this file except in compliance with the License.
6 * You may obtain a copy of the License at
8 * http://www.apache.org/licenses/LICENSE-2.0
10 * Unless required by applicable law or agreed to in writing, software
11 * distributed under the License is distributed on an "AS IS" BASIS,
12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13 * See the License for the specific language governing permissions and
14 * limitations under the License
19 namespace Tizen.Security.SecureRepository.Crypto
22 /// A class for holding parameters for the AES algorithm with the GCM mode.
24 /// <since_tizen> 3 </since_tizen>
25 public class AesGcmCipherParameters : AesCipherParameters
28 /// A default constructor.
30 /// <since_tizen> 3 </since_tizen>
31 /// <remarks>The CipherAlgorithmType in CipherParameters is set to CipherAlgorithmType.AesGcm.</remarks>
32 public AesGcmCipherParameters() : base(CipherAlgorithmType.AesGcm)
37 /// GCM tag length in bits.
39 /// <since_tizen> 3 </since_tizen>
40 /// <remarks>One of {32, 64, 96, 104, 112, 120, 128} (optional), if not present the length 128 is used.</remarks>
41 /// <exception cref="ArgumentOutOfRangeException">TagLength should be one of {32, 64, 96, 104, 112, 120, 128}.</exception>
46 return GetInteger(CipherParameterName.TagLength);
50 if (value != 32 && value != 64 && value != 96 && value != 104 &&
51 value != 112 && value != 120 && value != 128)
53 throw new ArgumentOutOfRangeException(
54 string.Format("invalid value{0} on TagLength", value));
58 Add(CipherParameterName.TagLength, value);
64 /// Additional authentication data (optional).
66 /// <since_tizen> 3 </since_tizen>
69 get { return GetBuffer(CipherParameterName.AAD); }
70 set { Add(CipherParameterName.AAD, value); }