1package org.bouncycastle.jcajce.provider.symmetric;
2
3// BEGIN android-removed
4// import java.security.AlgorithmParameters;
5// import java.security.InvalidAlgorithmParameterException;
6// END android-removed
7import java.security.SecureRandom;
8// BEGIN android-removed
9// import java.security.spec.AlgorithmParameterSpec;
10//
11// import javax.crypto.spec.IvParameterSpec;
12// END android-removed
13
14import org.bouncycastle.asn1.nist.NISTObjectIdentifiers;
15import org.bouncycastle.crypto.BufferedBlockCipher;
16import org.bouncycastle.crypto.CipherKeyGenerator;
17import org.bouncycastle.crypto.engines.AESFastEngine;
18import org.bouncycastle.crypto.engines.AESWrapEngine;
19// BEGIN android-removed
20// import org.bouncycastle.crypto.engines.RFC3211WrapEngine;
21// import org.bouncycastle.crypto.macs.CMac;
22// END android-removed
23import org.bouncycastle.crypto.modes.CBCBlockCipher;
24import org.bouncycastle.crypto.modes.CFBBlockCipher;
25import org.bouncycastle.crypto.modes.OFBBlockCipher;
26import org.bouncycastle.jcajce.provider.config.ConfigurableProvider;
27// BEGIN android-removed
28// import org.bouncycastle.jcajce.provider.symmetric.util.BaseAlgorithmParameterGenerator;
29// END android-removed
30import org.bouncycastle.jcajce.provider.symmetric.util.BaseBlockCipher;
31import org.bouncycastle.jcajce.provider.symmetric.util.BaseKeyGenerator;
32// BEGIN android-removed
33// import org.bouncycastle.jcajce.provider.symmetric.util.BaseMac;
34// END android-removed
35import org.bouncycastle.jcajce.provider.symmetric.util.BaseWrapCipher;
36import org.bouncycastle.jcajce.provider.symmetric.util.IvAlgorithmParameters;
37import org.bouncycastle.jcajce.provider.util.AlgorithmProvider;
38// BEGIN android-removed
39// import org.bouncycastle.jce.provider.BouncyCastleProvider;
40// END android-removed
41
42public final class AES
43{
44    private AES()
45    {
46    }
47
48    public static class ECB
49        extends BaseBlockCipher
50    {
51        public ECB()
52        {
53            super(new AESFastEngine());
54        }
55    }
56
57    public static class CBC
58       extends BaseBlockCipher
59    {
60        public CBC()
61        {
62            super(new CBCBlockCipher(new AESFastEngine()), 128);
63        }
64    }
65
66    static public class CFB
67        extends BaseBlockCipher
68    {
69        public CFB()
70        {
71            super(new BufferedBlockCipher(new CFBBlockCipher(new AESFastEngine(), 128)), 128);
72        }
73    }
74
75    static public class OFB
76        extends BaseBlockCipher
77    {
78        public OFB()
79        {
80            super(new BufferedBlockCipher(new OFBBlockCipher(new AESFastEngine(), 128)), 128);
81        }
82    }
83
84    // BEGIN android-removed
85    // public static class AESCMAC
86    //     extends BaseMac
87    // {
88    //     public AESCMAC()
89    //     {
90    //         super(new CMac(new AESFastEngine()));
91    //     }
92    // }
93    // END android-removed
94
95    static public class Wrap
96        extends BaseWrapCipher
97    {
98        public Wrap()
99        {
100            super(new AESWrapEngine());
101        }
102    }
103
104    // BEGIN android-removed
105    // public static class RFC3211Wrap
106    //     extends BaseWrapCipher
107    // {
108    //     public RFC3211Wrap()
109    //     {
110    //         super(new RFC3211WrapEngine(new AESFastEngine()), 16);
111    //     }
112    // }
113    // END android-removed
114
115    public static class KeyGen
116        extends BaseKeyGenerator
117    {
118        public KeyGen()
119        {
120            this(192);
121        }
122
123        public KeyGen(int keySize)
124        {
125            super("AES", keySize, new CipherKeyGenerator());
126        }
127    }
128
129    // BEGIN android-removed
130    // public static class KeyGen128
131    //     extends KeyGen
132    // {
133    //     public KeyGen128()
134    //     {
135    //         super(128);
136    //     }
137    // }
138    //
139    // public static class KeyGen192
140    //     extends KeyGen
141    // {
142    //     public KeyGen192()
143    //     {
144    //         super(192);
145    //     }
146    // }
147    //
148    // public static class KeyGen256
149    //     extends KeyGen
150    // {
151    //     public KeyGen256()
152    //     {
153    //         super(256);
154    //     }
155    // }
156    //
157    // public static class AlgParamGen
158    //     extends BaseAlgorithmParameterGenerator
159    // {
160    //     protected void engineInit(
161    //         AlgorithmParameterSpec genParamSpec,
162    //         SecureRandom random)
163    //         throws InvalidAlgorithmParameterException
164    //     {
165    //         throw new InvalidAlgorithmParameterException("No supported AlgorithmParameterSpec for AES parameter generation.");
166    //     }
167    //
168    //     protected AlgorithmParameters engineGenerateParameters()
169    //     {
170    //         byte[]  iv = new byte[16];
171    //
172    //         if (random == null)
173    //         {
174    //             random = new SecureRandom();
175    //         }
176    //
177    //         random.nextBytes(iv);
178    //
179    //         AlgorithmParameters params;
180    //
181    //         try
182    //         {
183    //             params = AlgorithmParameters.getInstance("AES", BouncyCastleProvider.PROVIDER_NAME);
184    //             params.init(new IvParameterSpec(iv));
185    //         }
186    //         catch (Exception e)
187    //         {
188    //             throw new RuntimeException(e.getMessage());
189    //         }
190    //
191    //         return params;
192    //     }
193    // }
194    // END android-removed
195
196    public static class AlgParams
197        extends IvAlgorithmParameters
198    {
199        protected String engineToString()
200        {
201            return "AES IV";
202        }
203    }
204
205    public static class Mappings
206        extends AlgorithmProvider
207    {
208        private static final String PREFIX = AES.class.getName();
209
210        /**
211         * These three got introduced in some messages as a result of a typo in an
212         * early document. We don't produce anything using these OID values, but we'll
213         * read them.
214         */
215        private static final String wrongAES128 = "2.16.840.1.101.3.4.2";
216        private static final String wrongAES192 = "2.16.840.1.101.3.4.22";
217        private static final String wrongAES256 = "2.16.840.1.101.3.4.42";
218
219        public Mappings()
220        {
221        }
222
223        public void configure(ConfigurableProvider provider)
224        {
225            provider.addAlgorithm("AlgorithmParameters.AES", PREFIX + "$AlgParams");
226            provider.addAlgorithm("Alg.Alias.AlgorithmParameters." + wrongAES128, "AES");
227            provider.addAlgorithm("Alg.Alias.AlgorithmParameters." + wrongAES192, "AES");
228            provider.addAlgorithm("Alg.Alias.AlgorithmParameters." + wrongAES256, "AES");
229            provider.addAlgorithm("Alg.Alias.AlgorithmParameters." + NISTObjectIdentifiers.id_aes128_CBC, "AES");
230            provider.addAlgorithm("Alg.Alias.AlgorithmParameters." + NISTObjectIdentifiers.id_aes192_CBC, "AES");
231            provider.addAlgorithm("Alg.Alias.AlgorithmParameters." + NISTObjectIdentifiers.id_aes256_CBC, "AES");
232
233            // BEGIN android-removed
234            // provider.addAlgorithm("AlgorithmParameterGenerator.AES", PREFIX + "$AlgParamGen");
235            // provider.addAlgorithm("Alg.Alias.AlgorithmParameterGenerator." + wrongAES128, "AES");
236            // provider.addAlgorithm("Alg.Alias.AlgorithmParameterGenerator." + wrongAES192, "AES");
237            // provider.addAlgorithm("Alg.Alias.AlgorithmParameterGenerator." + wrongAES256, "AES");
238            // provider.addAlgorithm("Alg.Alias.AlgorithmParameterGenerator." + NISTObjectIdentifiers.id_aes128_CBC, "AES");
239            // provider.addAlgorithm("Alg.Alias.AlgorithmParameterGenerator." + NISTObjectIdentifiers.id_aes192_CBC, "AES");
240            // provider.addAlgorithm("Alg.Alias.AlgorithmParameterGenerator." + NISTObjectIdentifiers.id_aes256_CBC, "AES");
241            // END android-removed
242
243            provider.addAlgorithm("Cipher.AES", PREFIX + "$ECB");
244            provider.addAlgorithm("Alg.Alias.Cipher." + wrongAES128, "AES");
245            provider.addAlgorithm("Alg.Alias.Cipher." + wrongAES192, "AES");
246            provider.addAlgorithm("Alg.Alias.Cipher." + wrongAES256, "AES");
247            // BEGIN android-removed
248            // provider.addAlgorithm("Cipher." + NISTObjectIdentifiers.id_aes128_ECB, PREFIX + "$ECB");
249            // provider.addAlgorithm("Cipher." + NISTObjectIdentifiers.id_aes192_ECB, PREFIX + "$ECB");
250            // provider.addAlgorithm("Cipher." + NISTObjectIdentifiers.id_aes256_ECB, PREFIX + "$ECB");
251            // provider.addAlgorithm("Cipher." + NISTObjectIdentifiers.id_aes128_CBC, PREFIX + "$CBC");
252            // provider.addAlgorithm("Cipher." + NISTObjectIdentifiers.id_aes192_CBC, PREFIX + "$CBC");
253            // provider.addAlgorithm("Cipher." + NISTObjectIdentifiers.id_aes256_CBC, PREFIX + "$CBC");
254            // provider.addAlgorithm("Cipher." + NISTObjectIdentifiers.id_aes128_OFB, PREFIX + "$OFB");
255            // provider.addAlgorithm("Cipher." + NISTObjectIdentifiers.id_aes192_OFB, PREFIX + "$OFB");
256            // provider.addAlgorithm("Cipher." + NISTObjectIdentifiers.id_aes256_OFB, PREFIX + "$OFB");
257            // provider.addAlgorithm("Cipher." + NISTObjectIdentifiers.id_aes128_CFB, PREFIX + "$CFB");
258            // provider.addAlgorithm("Cipher." + NISTObjectIdentifiers.id_aes192_CFB, PREFIX + "$CFB");
259            // provider.addAlgorithm("Cipher." + NISTObjectIdentifiers.id_aes256_CFB, PREFIX + "$CFB");
260            // END android-removed
261            provider.addAlgorithm("Cipher.AESWRAP", PREFIX + "$Wrap");
262            provider.addAlgorithm("Alg.Alias.Cipher." + NISTObjectIdentifiers.id_aes128_wrap, "AESWRAP");
263            provider.addAlgorithm("Alg.Alias.Cipher." + NISTObjectIdentifiers.id_aes192_wrap, "AESWRAP");
264            provider.addAlgorithm("Alg.Alias.Cipher." + NISTObjectIdentifiers.id_aes256_wrap, "AESWRAP");
265            // BEGIN android-removed
266            // provider.addAlgorithm("Cipher.AESRFC3211WRAP", PREFIX + "$RFC3211Wrap");
267            // END android-removed
268
269            provider.addAlgorithm("KeyGenerator.AES", PREFIX + "$KeyGen");
270            // BEGIN android-removed
271            // provider.addAlgorithm("KeyGenerator." + wrongAES128, PREFIX + "$KeyGen128");
272            // provider.addAlgorithm("KeyGenerator." + wrongAES192, PREFIX + "$KeyGen192");
273            // provider.addAlgorithm("KeyGenerator." + wrongAES256, PREFIX + "$KeyGen256");
274            // provider.addAlgorithm("KeyGenerator." + NISTObjectIdentifiers.id_aes128_ECB, PREFIX + "$KeyGen128");
275            // provider.addAlgorithm("KeyGenerator." + NISTObjectIdentifiers.id_aes128_CBC, PREFIX + "$KeyGen128");
276            // provider.addAlgorithm("KeyGenerator." + NISTObjectIdentifiers.id_aes128_OFB, PREFIX + "$KeyGen128");
277            // provider.addAlgorithm("KeyGenerator." + NISTObjectIdentifiers.id_aes128_CFB, PREFIX + "$KeyGen128");
278            // provider.addAlgorithm("KeyGenerator." + NISTObjectIdentifiers.id_aes192_ECB, PREFIX + "$KeyGen192");
279            // provider.addAlgorithm("KeyGenerator." + NISTObjectIdentifiers.id_aes192_CBC, PREFIX + "$KeyGen192");
280            // provider.addAlgorithm("KeyGenerator." + NISTObjectIdentifiers.id_aes192_OFB, PREFIX + "$KeyGen192");
281            // provider.addAlgorithm("KeyGenerator." + NISTObjectIdentifiers.id_aes192_CFB, PREFIX + "$KeyGen192");
282            // provider.addAlgorithm("KeyGenerator." + NISTObjectIdentifiers.id_aes256_ECB, PREFIX + "$KeyGen256");
283            // provider.addAlgorithm("KeyGenerator." + NISTObjectIdentifiers.id_aes256_CBC, PREFIX + "$KeyGen256");
284            // provider.addAlgorithm("KeyGenerator." + NISTObjectIdentifiers.id_aes256_OFB, PREFIX + "$KeyGen256");
285            // provider.addAlgorithm("KeyGenerator." + NISTObjectIdentifiers.id_aes256_CFB, PREFIX + "$KeyGen256");
286            // provider.addAlgorithm("KeyGenerator.AESWRAP", PREFIX + "$KeyGen");
287            // provider.addAlgorithm("KeyGenerator." + NISTObjectIdentifiers.id_aes128_wrap, PREFIX + "$KeyGen128");
288            // provider.addAlgorithm("KeyGenerator." + NISTObjectIdentifiers.id_aes192_wrap, PREFIX + "$KeyGen192");
289            // provider.addAlgorithm("KeyGenerator." + NISTObjectIdentifiers.id_aes256_wrap, PREFIX + "$KeyGen256");
290            //
291            // provider.addAlgorithm("Mac.AESCMAC", PREFIX + "$AESCMAC");
292            // END android-removed
293        }
294    }
295}
296