Mercurial > 510Connectbot
annotate app/src/main/java/ch/ethz/ssh2/crypto/cipher/DESede.java @ 438:d29cce60f393
migrate from Eclipse to Android Studio
| author | Carl Byington <carl@five-ten-sg.com> |
|---|---|
| date | Thu, 03 Dec 2015 11:23:55 -0800 |
| parents | src/ch/ethz/ssh2/crypto/cipher/DESede.java@071eccdff8ea |
| children |
| rev | line source |
|---|---|
|
273
91a31873c42a
start conversion from trilead to ganymed
Carl Byington <carl@five-ten-sg.com>
parents:
diff
changeset
|
1 package ch.ethz.ssh2.crypto.cipher; |
|
91a31873c42a
start conversion from trilead to ganymed
Carl Byington <carl@five-ten-sg.com>
parents:
diff
changeset
|
2 |
|
91a31873c42a
start conversion from trilead to ganymed
Carl Byington <carl@five-ten-sg.com>
parents:
diff
changeset
|
3 /* |
|
91a31873c42a
start conversion from trilead to ganymed
Carl Byington <carl@five-ten-sg.com>
parents:
diff
changeset
|
4 This file was shamelessly taken (and modified) from the Bouncy Castle Crypto package. |
|
91a31873c42a
start conversion from trilead to ganymed
Carl Byington <carl@five-ten-sg.com>
parents:
diff
changeset
|
5 Their licence file states the following: |
|
91a31873c42a
start conversion from trilead to ganymed
Carl Byington <carl@five-ten-sg.com>
parents:
diff
changeset
|
6 |
|
91a31873c42a
start conversion from trilead to ganymed
Carl Byington <carl@five-ten-sg.com>
parents:
diff
changeset
|
7 Copyright (c) 2000 - 2004 The Legion Of The Bouncy Castle |
|
91a31873c42a
start conversion from trilead to ganymed
Carl Byington <carl@five-ten-sg.com>
parents:
diff
changeset
|
8 (http://www.bouncycastle.org) |
|
91a31873c42a
start conversion from trilead to ganymed
Carl Byington <carl@five-ten-sg.com>
parents:
diff
changeset
|
9 |
|
91a31873c42a
start conversion from trilead to ganymed
Carl Byington <carl@five-ten-sg.com>
parents:
diff
changeset
|
10 Permission is hereby granted, free of charge, to any person obtaining a copy |
|
91a31873c42a
start conversion from trilead to ganymed
Carl Byington <carl@five-ten-sg.com>
parents:
diff
changeset
|
11 of this software and associated documentation files (the "Software"), to deal |
|
91a31873c42a
start conversion from trilead to ganymed
Carl Byington <carl@five-ten-sg.com>
parents:
diff
changeset
|
12 in the Software without restriction, including without limitation the rights |
|
91a31873c42a
start conversion from trilead to ganymed
Carl Byington <carl@five-ten-sg.com>
parents:
diff
changeset
|
13 to use, copy, modify, merge, publish, distribute, sublicense, and/or sell |
|
91a31873c42a
start conversion from trilead to ganymed
Carl Byington <carl@five-ten-sg.com>
parents:
diff
changeset
|
14 copies of the Software, and to permit persons to whom the Software is |
|
91a31873c42a
start conversion from trilead to ganymed
Carl Byington <carl@five-ten-sg.com>
parents:
diff
changeset
|
15 furnished to do so, subject to the following conditions: |
|
91a31873c42a
start conversion from trilead to ganymed
Carl Byington <carl@five-ten-sg.com>
parents:
diff
changeset
|
16 |
|
91a31873c42a
start conversion from trilead to ganymed
Carl Byington <carl@five-ten-sg.com>
parents:
diff
changeset
|
17 The above copyright notice and this permission notice shall be included in |
|
91a31873c42a
start conversion from trilead to ganymed
Carl Byington <carl@five-ten-sg.com>
parents:
diff
changeset
|
18 all copies or substantial portions of the Software. |
|
91a31873c42a
start conversion from trilead to ganymed
Carl Byington <carl@five-ten-sg.com>
parents:
diff
changeset
|
19 |
|
91a31873c42a
start conversion from trilead to ganymed
Carl Byington <carl@five-ten-sg.com>
parents:
diff
changeset
|
20 THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR |
|
91a31873c42a
start conversion from trilead to ganymed
Carl Byington <carl@five-ten-sg.com>
parents:
diff
changeset
|
21 IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, |
|
91a31873c42a
start conversion from trilead to ganymed
Carl Byington <carl@five-ten-sg.com>
parents:
diff
changeset
|
22 FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE |
|
91a31873c42a
start conversion from trilead to ganymed
Carl Byington <carl@five-ten-sg.com>
parents:
diff
changeset
|
23 AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER |
|
91a31873c42a
start conversion from trilead to ganymed
Carl Byington <carl@five-ten-sg.com>
parents:
diff
changeset
|
24 LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, |
|
91a31873c42a
start conversion from trilead to ganymed
Carl Byington <carl@five-ten-sg.com>
parents:
diff
changeset
|
25 OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN |
| 307 | 26 THE SOFTWARE. |
|
273
91a31873c42a
start conversion from trilead to ganymed
Carl Byington <carl@five-ten-sg.com>
parents:
diff
changeset
|
27 */ |
|
91a31873c42a
start conversion from trilead to ganymed
Carl Byington <carl@five-ten-sg.com>
parents:
diff
changeset
|
28 |
|
91a31873c42a
start conversion from trilead to ganymed
Carl Byington <carl@five-ten-sg.com>
parents:
diff
changeset
|
29 /** |
|
91a31873c42a
start conversion from trilead to ganymed
Carl Byington <carl@five-ten-sg.com>
parents:
diff
changeset
|
30 * DESede. |
| 307 | 31 * |
|
273
91a31873c42a
start conversion from trilead to ganymed
Carl Byington <carl@five-ten-sg.com>
parents:
diff
changeset
|
32 * @author See comments in the source file |
|
91a31873c42a
start conversion from trilead to ganymed
Carl Byington <carl@five-ten-sg.com>
parents:
diff
changeset
|
33 * @version 2.50, 03/15/10 |
| 307 | 34 * |
|
273
91a31873c42a
start conversion from trilead to ganymed
Carl Byington <carl@five-ten-sg.com>
parents:
diff
changeset
|
35 */ |
| 307 | 36 public class DESede extends DES { |
| 37 private int[] key1 = null; | |
| 38 private int[] key2 = null; | |
| 39 private int[] key3 = null; | |
|
273
91a31873c42a
start conversion from trilead to ganymed
Carl Byington <carl@five-ten-sg.com>
parents:
diff
changeset
|
40 |
| 307 | 41 private boolean encrypt; |
|
273
91a31873c42a
start conversion from trilead to ganymed
Carl Byington <carl@five-ten-sg.com>
parents:
diff
changeset
|
42 |
| 307 | 43 /** |
| 44 * standard constructor. | |
| 45 */ | |
| 46 public DESede() { | |
| 47 } | |
|
273
91a31873c42a
start conversion from trilead to ganymed
Carl Byington <carl@five-ten-sg.com>
parents:
diff
changeset
|
48 |
| 307 | 49 /** |
| 50 * initialise a DES cipher. | |
| 51 * | |
| 52 * @param encrypting | |
| 53 * whether or not we are for encryption. | |
| 54 * @param key | |
| 55 * the parameters required to set up the cipher. | |
| 56 * @exception IllegalArgumentException | |
| 57 * if the params argument is inappropriate. | |
| 58 */ | |
| 59 @Override | |
| 60 public void init(boolean encrypting, byte[] key) { | |
| 61 key1 = generateWorkingKey(encrypting, key, 0); | |
| 62 key2 = generateWorkingKey(!encrypting, key, 8); | |
| 63 key3 = generateWorkingKey(encrypting, key, 16); | |
| 64 encrypt = encrypting; | |
| 65 } | |
|
273
91a31873c42a
start conversion from trilead to ganymed
Carl Byington <carl@five-ten-sg.com>
parents:
diff
changeset
|
66 |
| 307 | 67 @Override |
| 68 public String getAlgorithmName() { | |
| 69 return "DESede"; | |
| 70 } | |
|
273
91a31873c42a
start conversion from trilead to ganymed
Carl Byington <carl@five-ten-sg.com>
parents:
diff
changeset
|
71 |
| 307 | 72 @Override |
| 73 public int getBlockSize() { | |
| 74 return 8; | |
| 75 } | |
|
273
91a31873c42a
start conversion from trilead to ganymed
Carl Byington <carl@five-ten-sg.com>
parents:
diff
changeset
|
76 |
| 307 | 77 @Override |
| 78 public void transformBlock(byte[] in, int inOff, byte[] out, int outOff) { | |
| 79 if (key1 == null) { | |
| 80 throw new IllegalStateException("DESede engine not initialised!"); | |
| 81 } | |
|
273
91a31873c42a
start conversion from trilead to ganymed
Carl Byington <carl@five-ten-sg.com>
parents:
diff
changeset
|
82 |
| 307 | 83 if (encrypt) { |
| 84 desFunc(key1, in, inOff, out, outOff); | |
| 85 desFunc(key2, out, outOff, out, outOff); | |
| 86 desFunc(key3, out, outOff, out, outOff); | |
| 87 } | |
| 88 else { | |
| 89 desFunc(key3, in, inOff, out, outOff); | |
| 90 desFunc(key2, out, outOff, out, outOff); | |
| 91 desFunc(key1, out, outOff, out, outOff); | |
| 92 } | |
| 93 } | |
|
273
91a31873c42a
start conversion from trilead to ganymed
Carl Byington <carl@five-ten-sg.com>
parents:
diff
changeset
|
94 |
| 307 | 95 @Override |
| 96 public void reset() { | |
| 97 } | |
|
273
91a31873c42a
start conversion from trilead to ganymed
Carl Byington <carl@five-ten-sg.com>
parents:
diff
changeset
|
98 } |