1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
| package zhuce;
|
| /************************************************
| MD5 Ëã·¨µÄJava Bean
| @author:Topcat Tuppin
| Last Modified:10,Mar,2001
| *************************************************/
| /*************************************************
| md5 ÀàʵÏÖÁËRSA Data Security, Inc.ÔÚÌá½»¸øIETF
| µÄRFC1321ÖеÄMD5 message-digest Ëã·¨¡£
| *************************************************/
|
| public class MD5 {
| /* ÏÂÃæÕâЩS11-S44ʵ¼ÊÉÏÊÇÒ»¸ö4*4µÄ¾ØÕó£¬ÔÚÔʼµÄCʵÏÖÖÐÊÇÓÃ#define ʵÏֵģ¬
| ÕâÀï°ÑËüÃÇʵÏÖ³ÉΪstatic finalÊDZíʾÁËÖ»¶Á£¬ÇÐÄÜÔÚͬһ¸ö½ø³Ì¿Õ¼äÄڵĶà¸ö
| Instance¼ä¹²Ïí*/
| static final int S11 = 7;
| static final int S12 = 12;
| static final int S13 = 17;
| static final int S14 = 22;
|
| static final int S21 = 5;
| static final int S22 = 9;
| static final int S23 = 14;
| static final int S24 = 20;
|
| static final int S31 = 4;
| static final int S32 = 11;
| static final int S33 = 16;
| static final int S34 = 23;
|
| static final int S41 = 6;
| static final int S42 = 10;
| static final int S43 = 15;
| static final int S44 = 21;
|
| static final byte[] PADDING = { -128, 0, 0, 0, 0, 0, 0, 0, 0,
| 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
| 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
| 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 };
| /* ÏÂÃæµÄÈý¸ö³ÉÔ±ÊÇMD5¼ÆËã¹ý³ÌÖÐÓõ½µÄ3¸öºËÐÄÊý¾Ý£¬ÔÚÔʼµÄCʵÏÖÖÐ
| ±»¶¨Òåµ½MD5_CTX½á¹¹ÖÐ
|
| */
| private long[] state = new long[4]; // state (ABCD)
| private long[] count = new long[2]; // number of bits, modulo 2^64 (lsb first)
| private byte[] buffer = new byte[64]; // input buffer
|
| /* digestHexStrÊÇMD5µÄΨһһ¸ö¹«¹²³ÉÔ±£¬ÊÇ×îÐÂÒ»´Î¼ÆËã½á¹ûµÄ
| ¡¡ 16½øÖÆASCII±íʾ.
| */
| public String digestHexStr;
|
| /* digest,ÊÇ×îÐÂÒ»´Î¼ÆËã½á¹ûµÄ2½øÖÆÄÚ²¿±íʾ£¬±íʾ128bitµÄMD5Öµ.
| */
| private byte[] digest = new byte[16];
|
| /*
| getMD5ofStrÊÇÀàMD5×îÖ÷ÒªµÄ¹«¹²·½·¨£¬Èë¿Ú²ÎÊýÊÇÄãÏëÒª½øÐÐMD5±ä»»µÄ×Ö·û´®
| ·µ»ØµÄÊDZ任ÍêµÄ½á¹û£¬Õâ¸ö½á¹ûÊÇ´Ó¹«¹²³ÉÔ±digestHexStrÈ¡µÃµÄ£®
| */
| public String getMD5ofStr(String inbuf) {
| md5Init();
| md5Update(inbuf.getBytes(), inbuf.length());
| md5Final();
| digestHexStr = "";
| for (int i = 0; i < 16; i++) {
| digestHexStr += byteHEX(digest[i]);
| }
| return digestHexStr;
|
| }
| // ÕâÊÇMD5Õâ¸öÀàµÄ±ê×¼¹¹Ô캯Êý£¬JavaBeanÒªÇóÓÐÒ»¸öpublicµÄ²¢ÇÒûÓвÎÊýµÄ¹¹Ô캯Êý
| public MD5() {
| md5Init();
|
| return;
| }
|
|
|
| /* md5InitÊÇÒ»¸ö³õʼ»¯º¯Êý£¬³õʼ»¯ºËÐıäÁ¿£¬×°Èë±ê×¼µÄ»ÃÊý */
| private void md5Init() {
| count[0] = 0L;
| count[1] = 0L;
| ///* Load magic initialization constants.
|
| state[0] = 0x67452301L;
| state[1] = 0xefcdab89L;
| state[2] = 0x98badcfeL;
| state[3] = 0x10325476L;
|
| return;
| }
| /* F, G, H ,I ÊÇ4¸ö»ù±¾µÄMD5º¯Êý£¬ÔÚÔʼµÄMD5µÄCʵÏÖÖУ¬ÓÉÓÚËüÃÇÊÇ
| ¼òµ¥µÄλÔËË㣬¿ÉÄܳöÓÚЧÂʵĿ¼ÂÇ°ÑËüÃÇʵÏÖ³ÉÁ˺꣬ÔÚjavaÖУ¬ÎÒÃÇ°ÑËüÃÇ
| ¡¡¡¡ÊµÏÖ³ÉÁËprivate·½·¨£¬Ãû×Ö±£³ÖÁËÔÀ´CÖеġ£ */
|
| private long F(long x, long y, long z) {
| return (x & y) | ((~x) & z);
|
| }
| private long G(long x, long y, long z) {
| return (x & z) | (y & (~z));
|
| }
| private long H(long x, long y, long z) {
| return x ^ y ^ z;
| }
|
| private long I(long x, long y, long z) {
| return y ^ (x | (~z));
| }
|
| /*
| FF,GG,HHºÍII½«µ÷ÓÃF,G,H,I½øÐнüÒ»²½±ä»»
| FF, GG, HH, and II transformations for rounds 1, 2, 3, and 4.
| Rotation is separate from addition to prevent recomputation.
| */
|
| private long FF(long a, long b, long c, long d, long x, long s,
| long ac) {
| a += F (b, c, d) + x + ac;
| a = ((int) a << s) | ((int) a >>> (32 - s));
| a += b;
| return a;
| }
|
| private long GG(long a, long b, long c, long d, long x, long s,
| long ac) {
| a += G (b, c, d) + x + ac;
| a = ((int) a << s) | ((int) a >>> (32 - s));
| a += b;
| return a;
| }
| private long HH(long a, long b, long c, long d, long x, long s,
| long ac) {
| a += H (b, c, d) + x + ac;
| a = ((int) a << s) | ((int) a >>> (32 - s));
| a += b;
| return a;
| }
| private long II(long a, long b, long c, long d, long x, long s,
| long ac) {
| a += I (b, c, d) + x + ac;
| a = ((int) a << s) | ((int) a >>> (32 - s));
| a += b;
| return a;
| }
| /*
| md5UpdateÊÇMD5µÄÖ÷¼ÆËã¹ý³Ì£¬inbufÊÇÒª±ä»»µÄ×Ö½Ú´®£¬inputlenÊdz¤¶È£¬Õâ¸ö
| º¯ÊýÓÉgetMD5ofStrµ÷Ó㬵÷ÓÃ֮ǰÐèÒªµ÷ÓÃmd5init£¬Òò´Ë°ÑËüÉè¼Æ³ÉprivateµÄ
| */
| private void md5Update(byte[] inbuf, int inputLen) {
|
| int i, index, partLen;
| byte[] block = new byte[64];
| index = (int)(count[0] >>> 3) & 0x3F;
| // /* Update number of bits */
| if ((count[0] += (inputLen << 3)) < (inputLen << 3))
| count[1]++;
| count[1] += (inputLen >>> 29);
|
| partLen = 64 - index;
|
| // Transform as many times as possible.
| if (inputLen >= partLen) {
| md5Memcpy(buffer, inbuf, index, 0, partLen);
| md5Transform(buffer);
|
| for (i = partLen; i + 63 < inputLen; i += 64) {
|
| md5Memcpy(block, inbuf, 0, i, 64);
| md5Transform (block);
| }
| index = 0;
|
| } else
|
| i = 0;
|
| ///* Buffer remaining input */
| md5Memcpy(buffer, inbuf, index, i, inputLen - i);
|
| }
|
| /*
| md5FinalÕûÀíºÍÌîдÊä³ö½á¹û
| */
| private void md5Final () {
| byte[] bits = new byte[8];
| int index, padLen;
|
| ///* Save number of bits */
| Encode (bits, count, 8);
|
| ///* Pad out to 56 mod 64.
| index = (int)(count[0] >>> 3) & 0x3f;
| padLen = (index < 56) ? (56 - index) : (120 - index);
| md5Update (PADDING, padLen);
|
| ///* Append length (before padding) */
| md5Update(bits, 8);
|
| ///* Store state in digest */
| Encode (digest, state, 16);
|
| }
|
| /* md5MemcpyÊÇÒ»¸öÄÚ²¿Ê¹ÓõÄbyteÊý×éµÄ¿é¿½±´º¯Êý£¬´ÓinputµÄinpos¿ªÊ¼°Ñlen³¤¶ÈµÄ
| ¡¡¡¡¡¡¡¡¡¡ ×Ö½Ú¿½±´µ½outputµÄoutposλÖÿªÊ¼
| */
|
| private void md5Memcpy (byte[] output, byte[] input,
| int outpos, int inpos, int len)
| {
| int i;
|
| for (i = 0; i < len; i++)
| output[outpos + i] = input[inpos + i];
| }
|
| /*
| md5TransformÊÇMD5ºËÐı任³ÌÐò£¬ÓÐmd5Updateµ÷Óã¬blockÊÇ·Ö¿éµÄÔʼ×Ö½Ú
| */
| private void md5Transform (byte block[]) {
| long a = state[0], b = state[1], c = state[2], d = state[3];
| long[] x = new long[16];
|
| Decode (x, block, 64);
|
| /* Round 1 */
| a = FF (a, b, c, d, x[0], S11, 0xd76aa478L); /* 1 */
| d = FF (d, a, b, c, x[1], S12, 0xe8c7b756L); /* 2 */
| c = FF (c, d, a, b, x[2], S13, 0x242070dbL); /* 3 */
| b = FF (b, c, d, a, x[3], S14, 0xc1bdceeeL); /* 4 */
| a = FF (a, b, c, d, x[4], S11, 0xf57c0fafL); /* 5 */
| d = FF (d, a, b, c, x[5], S12, 0x4787c62aL); /* 6 */
| c = FF (c, d, a, b, x[6], S13, 0xa8304613L); /* 7 */
| b = FF (b, c, d, a, x[7], S14, 0xfd469501L); /* 8 */
| a = FF (a, b, c, d, x[8], S11, 0x698098d8L); /* 9 */
| d = FF (d, a, b, c, x[9], S12, 0x8b44f7afL); /* 10 */
| c = FF (c, d, a, b, x[10], S13, 0xffff5bb1L); /* 11 */
| b = FF (b, c, d, a, x[11], S14, 0x895cd7beL); /* 12 */
| a = FF (a, b, c, d, x[12], S11, 0x6b901122L); /* 13 */
| d = FF (d, a, b, c, x[13], S12, 0xfd987193L); /* 14 */
| c = FF (c, d, a, b, x[14], S13, 0xa679438eL); /* 15 */
| b = FF (b, c, d, a, x[15], S14, 0x49b40821L); /* 16 */
|
| /* Round 2 */
| a = GG (a, b, c, d, x[1], S21, 0xf61e2562L); /* 17 */
| d = GG (d, a, b, c, x[6], S22, 0xc040b340L); /* 18 */
| c = GG (c, d, a, b, x[11], S23, 0x265e5a51L); /* 19 */
| b = GG (b, c, d, a, x[0], S24, 0xe9b6c7aaL); /* 20 */
| a = GG (a, b, c, d, x[5], S21, 0xd62f105dL); /* 21 */
| d = GG (d, a, b, c, x[10], S22, 0x2441453L); /* 22 */
| c = GG (c, d, a, b, x[15], S23, 0xd8a1e681L); /* 23 */
| b = GG (b, c, d, a, x[4], S24, 0xe7d3fbc8L); /* 24 */
| a = GG (a, b, c, d, x[9], S21, 0x21e1cde6L); /* 25 */
| d = GG (d, a, b, c, x[14], S22, 0xc33707d6L); /* 26 */
| c = GG (c, d, a, b, x[3], S23, 0xf4d50d87L); /* 27 */
| b = GG (b, c, d, a, x[8], S24, 0x455a14edL); /* 28 */
| a = GG (a, b, c, d, x[13], S21, 0xa9e3e905L); /* 29 */
| d = GG (d, a, b, c, x[2], S22, 0xfcefa3f8L); /* 30 */
| c = GG (c, d, a, b, x[7], S23, 0x676f02d9L); /* 31 */
| b = GG (b, c, d, a, x[12], S24, 0x8d2a4c8aL); /* 32 */
|
| /* Round 3 */
| a = HH (a, b, c, d, x[5], S31, 0xfffa3942L); /* 33 */
| d = HH (d, a, b, c, x[8], S32, 0x8771f681L); /* 34 */
| c = HH (c, d, a, b, x[11], S33, 0x6d9d6122L); /* 35 */
| b = HH (b, c, d, a, x[14], S34, 0xfde5380cL); /* 36 */
| a = HH (a, b, c, d, x[1], S31, 0xa4beea44L); /* 37 */
| d = HH (d, a, b, c, x[4], S32, 0x4bdecfa9L); /* 38 */
| c = HH (c, d, a, b, x[7], S33, 0xf6bb4b60L); /* 39 */
| b = HH (b, c, d, a, x[10], S34, 0xbebfbc70L); /* 40 */
| a = HH (a, b, c, d, x[13], S31, 0x289b7ec6L); /* 41 */
| d = HH (d, a, b, c, x[0], S32, 0xeaa127faL); /* 42 */
| c = HH (c, d, a, b, x[3], S33, 0xd4ef3085L); /* 43 */
| b = HH (b, c, d, a, x[6], S34, 0x4881d05L); /* 44 */
| a = HH (a, b, c, d, x[9], S31, 0xd9d4d039L); /* 45 */
| d = HH (d, a, b, c, x[12], S32, 0xe6db99e5L); /* 46 */
| c = HH (c, d, a, b, x[15], S33, 0x1fa27cf8L); /* 47 */
| b = HH (b, c, d, a, x[2], S34, 0xc4ac5665L); /* 48 */
|
| /* Round 4 */
| a = II (a, b, c, d, x[0], S41, 0xf4292244L); /* 49 */
| d = II (d, a, b, c, x[7], S42, 0x432aff97L); /* 50 */
| c = II (c, d, a, b, x[14], S43, 0xab9423a7L); /* 51 */
| b = II (b, c, d, a, x[5], S44, 0xfc93a039L); /* 52 */
| a = II (a, b, c, d, x[12], S41, 0x655b59c3L); /* 53 */
| d = II (d, a, b, c, x[3], S42, 0x8f0ccc92L); /* 54 */
| c = II (c, d, a, b, x[10], S43, 0xffeff47dL); /* 55 */
| b = II (b, c, d, a, x[1], S44, 0x85845dd1L); /* 56 */
| a = II (a, b, c, d, x[8], S41, 0x6fa87e4fL); /* 57 */
| d = II (d, a, b, c, x[15], S42, 0xfe2ce6e0L); /* 58 */
| c = II (c, d, a, b, x[6], S43, 0xa3014314L); /* 59 */
| b = II (b, c, d, a, x[13], S44, 0x4e0811a1L); /* 60 */
| a = II (a, b, c, d, x[4], S41, 0xf7537e82L); /* 61 */
| d = II (d, a, b, c, x[11], S42, 0xbd3af235L); /* 62 */
| c = II (c, d, a, b, x[2], S43, 0x2ad7d2bbL); /* 63 */
| b = II (b, c, d, a, x[9], S44, 0xeb86d391L); /* 64 */
|
| state[0] += a;
| state[1] += b;
| state[2] += c;
| state[3] += d;
|
| }
|
| /*Encode°ÑlongÊý×鰴˳Ðò²ð³ÉbyteÊý×飬ÒòΪjavaµÄlongÀàÐÍÊÇ64bitµÄ£¬
| Ö»²ðµÍ32bit£¬ÒÔÊÊÓ¦ÔʼCʵÏÖµÄÓÃ;
| */
| private void Encode (byte[] output, long[] input, int len) {
| int i, j;
|
| for (i = 0, j = 0; j < len; i++, j += 4) {
| output[j] = (byte)(input[i] & 0xffL);
| output[j + 1] = (byte)((input[i] >>> 8) & 0xffL);
| output[j + 2] = (byte)((input[i] >>> 16) & 0xffL);
| output[j + 3] = (byte)((input[i] >>> 24) & 0xffL);
| }
| }
|
| /*Decode°ÑbyteÊý×鰴˳ÐòºÏ³É³ÉlongÊý×飬ÒòΪjavaµÄlongÀàÐÍÊÇ64bitµÄ£¬
| Ö»ºÏ³ÉµÍ32bit£¬¸ß32bitÇåÁ㣬ÒÔÊÊÓ¦ÔʼCʵÏÖµÄÓÃ;
| */
| private void Decode (long[] output, byte[] input, int len) {
| int i, j;
|
|
| for (i = 0, j = 0; j < len; i++, j += 4)
| output[i] = b2iu(input[j]) |
| (b2iu(input[j + 1]) << 8) |
| (b2iu(input[j + 2]) << 16) |
| (b2iu(input[j + 3]) << 24);
|
| return;
| }
|
| /*
| b2iuÊÇÎÒдµÄÒ»¸ö°Ñbyte°´ÕÕ²»¿¼ÂÇÕý¸ººÅµÄÔÔòµÄ£¢Éýλ£¢³ÌÐò£¬ÒòΪjavaûÓÐunsignedÔËËã
| */
| public static long b2iu(byte b) {
| return b < 0 ? b & 0x7F + 128 : b;
| }
|
| /*byteHEX()£¬ÓÃÀ´°ÑÒ»¸öbyteÀàÐ͵ÄÊýת»»³ÉÊ®Áù½øÖƵÄASCII±íʾ£¬
| ¡¡ÒòΪjavaÖеÄbyteµÄtoStringÎÞ·¨ÊµÏÖÕâÒ»µã£¬ÎÒÃÇÓÖûÓÐCÓïÑÔÖеÄ
| sprintf(outbuf,"%02X",ib)
| */
| public static String byteHEX(byte ib) {
| char[] Digit = { '0','1','2','3','4','5','6','7','8','9',
| 'A','B','C','D','E','F' };
| char [] ob = new char[2];
| ob[0] = Digit[(ib >>> 4) & 0X0F];
| ob[1] = Digit[ib & 0X0F];
| String s = new String(ob);
| return s;
| }
| }
|
|
