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comparison src/ch/ethz/ssh2/crypto/cipher/DESede.java @ 307:071eccdff8ea ganymed

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fix java formatting
author Carl Byington <carl@five-ten-sg.com>
date Wed, 30 Jul 2014 14:16:58 -0700
parents 91a31873c42a
children
comparison
equal deleted inserted replaced
305:d2b303406d63 307:071eccdff8ea
21 IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, 21 IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
22 FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE 22 FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
23 AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER 23 AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
24 LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, 24 LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
25 OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN 25 OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
26 THE SOFTWARE. 26 THE SOFTWARE.
27 */ 27 */
28 28
29 /** 29 /**
30 * DESede. 30 * DESede.
31 * 31 *
32 * @author See comments in the source file 32 * @author See comments in the source file
33 * @version 2.50, 03/15/10 33 * @version 2.50, 03/15/10
34 * 34 *
35 */ 35 */
36 public class DESede extends DES 36 public class DESede extends DES {
37 { 37 private int[] key1 = null;
38 private int[] key1 = null; 38 private int[] key2 = null;
39 private int[] key2 = null; 39 private int[] key3 = null;
40 private int[] key3 = null;
41 40
42 private boolean encrypt; 41 private boolean encrypt;
43 42
44 /** 43 /**
45 * standard constructor. 44 * standard constructor.
46 */ 45 */
47 public DESede() 46 public DESede() {
48 { 47 }
49 }
50 48
51 /** 49 /**
52 * initialise a DES cipher. 50 * initialise a DES cipher.
53 * 51 *
54 * @param encrypting 52 * @param encrypting
55 * whether or not we are for encryption. 53 * whether or not we are for encryption.
56 * @param key 54 * @param key
57 * the parameters required to set up the cipher. 55 * the parameters required to set up the cipher.
58 * @exception IllegalArgumentException 56 * @exception IllegalArgumentException
59 * if the params argument is inappropriate. 57 * if the params argument is inappropriate.
60 */ 58 */
61 @Override 59 @Override
62 public void init(boolean encrypting, byte[] key) 60 public void init(boolean encrypting, byte[] key) {
63 { 61 key1 = generateWorkingKey(encrypting, key, 0);
64 key1 = generateWorkingKey(encrypting, key, 0); 62 key2 = generateWorkingKey(!encrypting, key, 8);
65 key2 = generateWorkingKey(!encrypting, key, 8); 63 key3 = generateWorkingKey(encrypting, key, 16);
66 key3 = generateWorkingKey(encrypting, key, 16); 64 encrypt = encrypting;
65 }
67 66
68 encrypt = encrypting; 67 @Override
69 } 68 public String getAlgorithmName() {
69 return "DESede";
70 }
70 71
71 @Override 72 @Override
72 public String getAlgorithmName() 73 public int getBlockSize() {
73 { 74 return 8;
74 return "DESede"; 75 }
75 }
76 76
77 @Override 77 @Override
78 public int getBlockSize() 78 public void transformBlock(byte[] in, int inOff, byte[] out, int outOff) {
79 { 79 if (key1 == null) {
80 return 8; 80 throw new IllegalStateException("DESede engine not initialised!");
81 } 81 }
82 82
83 @Override 83 if (encrypt) {
84 public void transformBlock(byte[] in, int inOff, byte[] out, int outOff) 84 desFunc(key1, in, inOff, out, outOff);
85 { 85 desFunc(key2, out, outOff, out, outOff);
86 if (key1 == null) 86 desFunc(key3, out, outOff, out, outOff);
87 { 87 }
88 throw new IllegalStateException("DESede engine not initialised!"); 88 else {
89 } 89 desFunc(key3, in, inOff, out, outOff);
90 desFunc(key2, out, outOff, out, outOff);
91 desFunc(key1, out, outOff, out, outOff);
92 }
93 }
90 94
91 if (encrypt) 95 @Override
92 { 96 public void reset() {
93 desFunc(key1, in, inOff, out, outOff); 97 }
94 desFunc(key2, out, outOff, out, outOff);
95 desFunc(key3, out, outOff, out, outOff);
96 }
97 else
98 {
99 desFunc(key3, in, inOff, out, outOff);
100 desFunc(key2, out, outOff, out, outOff);
101 desFunc(key1, out, outOff, out, outOff);
102 }
103 }
104
105 @Override
106 public void reset()
107 {
108 }
109 } 98 }