js_md5.js 15 KB

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  1. function strMd5CtxParams() {
  2. this.md5count;
  3. this.state;
  4. this.buffer;
  5. };
  6. function md5_init() {
  7. var md5CtxParams = new strMd5CtxParams();
  8. md5CtxParams.md5count = new Array(2);
  9. md5CtxParams.state = new Array(4);
  10. md5CtxParams.buffer = new Uint8Array(64);
  11. md5CtxParams.md5count[0] = 0;
  12. md5CtxParams.md5count[1] = 0;
  13. md5CtxParams.state[0] = 0x67452301;
  14. md5CtxParams.state[1] = 0xEFCDAB89;
  15. md5CtxParams.state[2] = 0x98BADCFE;
  16. md5CtxParams.state[3] = 0x10325476;
  17. return md5CtxParams;
  18. }
  19. function md5_update(md5CtxParams, data, datalen) {
  20. //unsigned int i = 0;
  21. //unsigned int index = 0;
  22. //unsigned int partlen = 0;
  23. var index = 0;
  24. var i = 0;
  25. var j = 0;
  26. var partlen = 0;
  27. //index = (m_Md5Count[0] >> 3) & 0x3F;
  28. index = (md5CtxParams.md5count[0] >>> 3) & 0x3F;
  29. partlen = 64 - index;
  30. //m_Md5Count[0] += (inputlen << 3);
  31. md5CtxParams.md5count[0] = bn_u32_add(md5CtxParams.md5count[0], datalen << 3);
  32. //if(m_Md5Count[0] < (inputlen << 3)) {
  33. if (bn_u32_compare(md5CtxParams.md5count[0], datalen << 3) < 0) {
  34. //m_Md5Count[1]++;
  35. md5CtxParams.md5count[1] = bn_u32_add(md5CtxParams.md5count[1], 1);
  36. }
  37. //m_Md5Count[1] += (inputlen >> 29);
  38. md5CtxParams.md5count[1] = bn_u32_add(md5CtxParams.md5count[1], datalen >>> 29);
  39. if (datalen >= partlen) {
  40. //memcpy(&m_Buffer[index],input,partlen);
  41. for (j = 0; j < partlen; j++) {
  42. md5CtxParams.buffer[index + j] = data[j];
  43. }
  44. //Transform(m_State,m_Buffer);
  45. Transform(md5CtxParams.state, md5CtxParams.buffer, 0);
  46. for (i = partlen; i + 64 <= datalen; i += 64) {
  47. //Transform(m_State, (unsigned char*)&input[i]);
  48. Transform(md5CtxParams.state, data, i);
  49. }
  50. index = 0;
  51. } else {
  52. i = 0;
  53. //console.log("iii");
  54. }
  55. //memcpy(&m_Buffer[index],&input[i],inputlen-i);
  56. for (j = 0; j < datalen - i; j++) {
  57. md5CtxParams.buffer[index + j] = data[i + j];
  58. }
  59. }
  60. function md5_final(md5CtxParams) {
  61. var PADDING = [0x80, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
  62. 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
  63. 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
  64. 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0];
  65. var index = 0, padlen = 0;
  66. var result = new Uint8Array(16);
  67. var bits = new Uint8Array(8);
  68. var i = 0;
  69. //index = (m_Md5Count[0] >> 3) & 0x3F;
  70. index = (md5CtxParams.md5count[0] >> 3) & 0x3F;
  71. padlen = (index < 56) ? (56 - index) : (120 - index);
  72. Encode(bits, md5CtxParams.md5count, 0, 8);
  73. md5_update(md5CtxParams, PADDING, padlen);
  74. md5_update(md5CtxParams, bits, 8);
  75. //console.log("md5_final = %d %d %d %d", md5CtxParams.state[0], md5CtxParams.state[1], md5CtxParams.state[2], md5CtxParams.state[3]);
  76. Encode(result, md5CtxParams.state, 0, 16);
  77. return result;
  78. }
  79. function md5_str_to_array(strIn) {
  80. var bytesArray = new Uint8Array(strIn.length);
  81. var i = 0;
  82. for (i = 0; i < strIn.length; i++) {
  83. bytesArray[i] = strIn.charCodeAt(i);
  84. }
  85. return bytesArray;
  86. }
  87. function md5_hex_to_array(hexStrIn) {
  88. var i = 0;
  89. var cnt = 0;
  90. var ele = 0;
  91. var bytesArray = null;
  92. cnt = 0;
  93. for (i = 0; i < hexStrIn.length; i++) {
  94. ele = hexStrIn.charCodeAt(i);
  95. if (ele >= 48 && ele < 48 + 10) {
  96. cnt++;
  97. }
  98. if (ele >= 65 && ele < 65 + 6) {
  99. cnt++;
  100. }
  101. if (ele >= 97 && ele < 97 + 6) {
  102. cnt++;
  103. }
  104. }
  105. bytesArray = new Uint8Array(parseInt((cnt + 1) / 2));
  106. cnt = 0;
  107. for (i = 0; i < hexStrIn.length; i++) {
  108. ele = hexStrIn.charCodeAt(i);
  109. if (ele >= 48 && ele < 48 + 10) {
  110. ele -= 48;
  111. cnt++;
  112. } else if (ele >= 65 && ele < 65 + 6) {
  113. ele = ele - 65 + 10;
  114. cnt++;
  115. } else if (ele >= 97 && ele < 97 + 6) {
  116. ele = ele - 97 + 10;
  117. cnt++;
  118. } else {
  119. continue;
  120. }
  121. if ((cnt % 2) == 1) {
  122. bytesArray[parseInt((cnt - 1) / 2)] = (ele << 4) & 0xF0;
  123. } else {
  124. bytesArray[parseInt((cnt - 1) / 2)] |= ele;
  125. }
  126. }
  127. return bytesArray;
  128. }
  129. function md5_encode_hex(result, len) {
  130. var sha256_hex_digits = "0123456789abcdef";
  131. var output = new String();
  132. var i = 0;
  133. for (i = 0; i < len; i++) {
  134. output += sha256_hex_digits.charAt((result[i] >>> 4) & 0x0f);
  135. output += sha256_hex_digits.charAt((result[i]) & 0x0f);
  136. }
  137. return output;
  138. }
  139. function F(x, y, z) {
  140. return ((x & y) | (~x & z));
  141. }
  142. function G(x, y, z) {
  143. return ((x & z) | (y & ~z));
  144. }
  145. function H(x, y, z) {
  146. return (x ^ y ^ z);
  147. }
  148. function I(x, y, z) {
  149. return (y ^ (x | ~z));
  150. }
  151. function ROTATE_LEFT(x, n) {
  152. x = x & 0xffffffff;
  153. return ((x << n) | (x >>> (32 - n)));
  154. }
  155. function FF(a, b, c, d, x, s, ac) {
  156. //a += F(b,c,d) + x + ac;
  157. a = bn_u32_add(a, F(b, c, d));
  158. a = bn_u32_add(a, x);
  159. a = bn_u32_add(a, ac);
  160. a = ROTATE_LEFT(a, s);
  161. //a += b;
  162. a = bn_u32_add(a, b);
  163. return a;
  164. }
  165. function GG(a, b, c, d, x, s, ac) {
  166. //a += G(b,c,d) + x + ac;
  167. a = bn_u32_add(a, G(b, c, d));
  168. a = bn_u32_add(a, x);
  169. a = bn_u32_add(a, ac);
  170. a = ROTATE_LEFT(a, s);
  171. //a += b;
  172. a = bn_u32_add(a, b);
  173. return a;
  174. }
  175. function HH(a, b, c, d, x, s, ac) {
  176. //a += H(b,c,d) + x + ac;
  177. a = bn_u32_add(a, H(b, c, d));
  178. a = bn_u32_add(a, x);
  179. a = bn_u32_add(a, ac);
  180. a = ROTATE_LEFT(a, s);
  181. //a += b;
  182. a = bn_u32_add(a, b);
  183. return a;
  184. }
  185. function II(a, b, c, d, x, s, ac) {
  186. //a += H(b,c,d) + x + ac;
  187. a = bn_u32_add(a, I(b, c, d));
  188. a = bn_u32_add(a, x);
  189. a = bn_u32_add(a, ac);
  190. a = ROTATE_LEFT(a, s);
  191. //a += b;
  192. a = bn_u32_add(a, b);
  193. return a;
  194. }
  195. function Transform(state, block, blockindex) {
  196. var x = new Array(64);//Uint8Array(64);
  197. var a = state[0];
  198. var b = state[1];
  199. var c = state[2];
  200. var d = state[3];
  201. //var i = 0;
  202. Decode(x, block, blockindex, 64);
  203. //printfIntsIndex("x", x, 0, 64);
  204. a = FF(a, b, c, d, x[0], 7, 0xd76aa478); /* 1 */
  205. d = FF(d, a, b, c, x[1], 12, 0xe8c7b756); /* 2 */
  206. c = FF(c, d, a, b, x[2], 17, 0x242070db); /* 3 */
  207. b = FF(b, c, d, a, x[3], 22, 0xc1bdceee); /* 4 */
  208. a = FF(a, b, c, d, x[4], 7, 0xf57c0faf); /* 5 */
  209. d = FF(d, a, b, c, x[5], 12, 0x4787c62a); /* 6 */
  210. c = FF(c, d, a, b, x[6], 17, 0xa8304613); /* 7 */
  211. b = FF(b, c, d, a, x[7], 22, 0xfd469501); /* 8 */
  212. a = FF(a, b, c, d, x[8], 7, 0x698098d8); /* 9 */
  213. d = FF(d, a, b, c, x[9], 12, 0x8b44f7af); /* 10 */
  214. c = FF(c, d, a, b, x[10], 17, 0xffff5bb1); /* 11 */
  215. b = FF(b, c, d, a, x[11], 22, 0x895cd7be); /* 12 */
  216. a = FF(a, b, c, d, x[12], 7, 0x6b901122); /* 13 */
  217. d = FF(d, a, b, c, x[13], 12, 0xfd987193); /* 14 */
  218. c = FF(c, d, a, b, x[14], 17, 0xa679438e); /* 15 */
  219. b = FF(b, c, d, a, x[15], 22, 0x49b40821); /* 16 */
  220. //console.log("a = %d b = %d c = %d d = %d", a, b, c, d);
  221. //console.log("3a = %d b = %d c = %d d = %d", a, b, c, d);
  222. /* Round 2 */
  223. a = GG(a, b, c, d, x[1], 5, 0xf61e2562); /* 17 */
  224. //console.log("4a = %d b = %d c = %d d = %d", a, b, c, d);
  225. d = GG(d, a, b, c, x[6], 9, 0xc040b340); /* 18 */
  226. //console.log("5a = %d b = %d c = %d d = %d", a, b, c, d);
  227. c = GG(c, d, a, b, x[11], 14, 0x265e5a51); /* 19 */
  228. //console.log("6a = %d b = %d c = %d d = %d", a, b, c, d);
  229. b = GG(b, c, d, a, x[0], 20, 0xe9b6c7aa); /* 20 */
  230. //console.log("7a = %d b = %d c = %d d = %d", a, b, c, d);
  231. a = GG(a, b, c, d, x[5], 5, 0xd62f105d); /* 21 */
  232. //console.log("8a = %d b = %d c = %d d = %d", a, b, c, d);
  233. d = GG(d, a, b, c, x[10], 9, 0x2441453); /* 22 */
  234. //console.log("9a = %d b = %d c = %d d = %d", a, b, c, d);
  235. c = GG(c, d, a, b, x[15], 14, 0xd8a1e681); /* 23 */
  236. //console.log("10a = %d b = %d c = %d d = %d", a, b, c, d);
  237. b = GG(b, c, d, a, x[4], 20, 0xe7d3fbc8); /* 24 */
  238. //console.log("11a = %d b = %d c = %d d = %d", a, b, c, d);
  239. a = GG(a, b, c, d, x[9], 5, 0x21e1cde6); /* 25 */
  240. //console.log("12a = %d b = %d c = %d d = %d", a, b, c, d);
  241. d = GG(d, a, b, c, x[14], 9, 0xc33707d6); /* 26 */
  242. //console.log("13a = %d b = %d c = %d d = %d", a, b, c, d);
  243. c = GG(c, d, a, b, x[3], 14, 0xf4d50d87); /* 27 */
  244. //console.log("14a = %d b = %d c = %d d = %d", a, b, c, d);
  245. b = GG(b, c, d, a, x[8], 20, 0x455a14ed); /* 28 */
  246. //console.log("15a = %d b = %d c = %d d = %d", a, b, c, d);
  247. a = GG(a, b, c, d, x[13], 5, 0xa9e3e905); /* 29 */
  248. //console.log("16a = %d b = %d c = %d d = %d", a, b, c, d);
  249. d = GG(d, a, b, c, x[2], 9, 0xfcefa3f8); /* 30 */
  250. //console.log("17a = %d b = %d c = %d d = %d", a, b, c, d);
  251. c = GG(c, d, a, b, x[7], 14, 0x676f02d9); /* 31 */
  252. //console.log("18a = %d b = %d c = %d d = %d", a, b, c, d);
  253. b = GG(b, c, d, a, x[12], 20, 0x8d2a4c8a); /* 32 */
  254. //console.log("2a = %d b = %d c = %d d = %d", a, b, c, d);
  255. /* Round 3 */
  256. a = HH(a, b, c, d, x[5], 4, 0xfffa3942); /* 33 */
  257. d = HH(d, a, b, c, x[8], 11, 0x8771f681); /* 34 */
  258. c = HH(c, d, a, b, x[11], 16, 0x6d9d6122); /* 35 */
  259. b = HH(b, c, d, a, x[14], 23, 0xfde5380c); /* 36 */
  260. a = HH(a, b, c, d, x[1], 4, 0xa4beea44); /* 37 */
  261. d = HH(d, a, b, c, x[4], 11, 0x4bdecfa9); /* 38 */
  262. c = HH(c, d, a, b, x[7], 16, 0xf6bb4b60); /* 39 */
  263. b = HH(b, c, d, a, x[10], 23, 0xbebfbc70); /* 40 */
  264. a = HH(a, b, c, d, x[13], 4, 0x289b7ec6); /* 41 */
  265. d = HH(d, a, b, c, x[0], 11, 0xeaa127fa); /* 42 */
  266. c = HH(c, d, a, b, x[3], 16, 0xd4ef3085); /* 43 */
  267. b = HH(b, c, d, a, x[6], 23, 0x4881d05); /* 44 */
  268. a = HH(a, b, c, d, x[9], 4, 0xd9d4d039); /* 45 */
  269. d = HH(d, a, b, c, x[12], 11, 0xe6db99e5); /* 46 */
  270. c = HH(c, d, a, b, x[15], 16, 0x1fa27cf8); /* 47 */
  271. b = HH(b, c, d, a, x[2], 23, 0xc4ac5665); /* 48 */
  272. //console.log("1a = %d b = %d c = %d d = %d", a, b, c, d);
  273. /* Round 4 */
  274. a = II(a, b, c, d, x[0], 6, 0xf4292244); /* 49 */
  275. d = II(d, a, b, c, x[7], 10, 0x432aff97); /* 50 */
  276. c = II(c, d, a, b, x[14], 15, 0xab9423a7); /* 51 */
  277. b = II(b, c, d, a, x[5], 21, 0xfc93a039); /* 52 */
  278. a = II(a, b, c, d, x[12], 6, 0x655b59c3); /* 53 */
  279. d = II(d, a, b, c, x[3], 10, 0x8f0ccc92); /* 54 */
  280. c = II(c, d, a, b, x[10], 15, 0xffeff47d); /* 55 */
  281. b = II(b, c, d, a, x[1], 21, 0x85845dd1); /* 56 */
  282. a = II(a, b, c, d, x[8], 6, 0x6fa87e4f); /* 57 */
  283. d = II(d, a, b, c, x[15], 10, 0xfe2ce6e0); /* 58 */
  284. c = II(c, d, a, b, x[6], 15, 0xa3014314); /* 59 */
  285. b = II(b, c, d, a, x[13], 21, 0x4e0811a1); /* 60 */
  286. a = II(a, b, c, d, x[4], 6, 0xf7537e82); /* 61 */
  287. d = II(d, a, b, c, x[11], 10, 0xbd3af235); /* 62 */
  288. c = II(c, d, a, b, x[2], 15, 0x2ad7d2bb); /* 63 */
  289. b = II(b, c, d, a, x[9], 21, 0xeb86d391); /* 64 */
  290. //console.log("0a = %d b = %d c = %d d = %d", a, b, c, d);
  291. //console.log("pre state = %d %d %d %d", state[0], state[1], state[2], state[3]);
  292. //state[0] += a;
  293. state[0] = bn_u32_add(state[0], a);
  294. //state[1] += b;
  295. state[1] = bn_u32_add(state[1], b);
  296. //state[2] += c;
  297. state[2] = bn_u32_add(state[2], c);
  298. //state[3] += d;
  299. state[3] = bn_u32_add(state[3], d);
  300. //throw Error("11");
  301. //console.log("state = %d %d %d %d", state[0], state[1], state[2], state[3]);
  302. //throw Error("11");
  303. }
  304. function Decode(output, input, inputindex, len) {
  305. var i = 0;
  306. var j = 0;
  307. while (j < len) {
  308. output[i] = ((input[j + inputindex]) & 0xff) |
  309. ((input[j + 1 + inputindex] & 0xff) << 8) |
  310. ((input[j + 2 + inputindex] & 0xff) << 16) |
  311. ((input[j + 3 + inputindex] & 0xff) << 24);
  312. i++;
  313. j += 4;
  314. }
  315. }
  316. function Encode(output, input, inputindex, len) {
  317. //unsigned int i = 0;
  318. //unsigned int j = 0;
  319. var i = 0;
  320. var j = 0;
  321. while (j < len) {
  322. output[j] = input[i + inputindex] & 0xFF;
  323. output[j + 1] = (input[i + inputindex] >>> 8) & 0xFF;
  324. output[j + 2] = (input[i + inputindex] >>> 16) & 0xFF;
  325. output[j + 3] = (input[i + inputindex] >>> 24) & 0xFF;
  326. i++;
  327. j += 4;
  328. }
  329. }
  330. /*
  331. function printfInts(title, data, len) {
  332. printfIntsIndex(title, data, 0, len);
  333. }
  334. function printfIntsIndex(title, data, index, len) {
  335. var i = 0;
  336. for (i = 0; i < len; i++) {
  337. console.log("%d %s %d", i, title == null ? "":title, data[i + index]);
  338. }
  339. }*/
  340. function bn_u32_compare(uint1, uint2) {
  341. uint1 &= 0xffffffff;
  342. uint2 &= 0xffffffff;
  343. if ((uint1 & 0x80000000) == 0 && (uint2 & 0x80000000) == 0) {
  344. return uint1 > uint2 ? 1 : (uint1 == uint2 ? 0 : (-1));
  345. }
  346. if ((uint1 & 0x80000000) != 0 && (uint2 & 0x80000000) != 0) {
  347. uint1 &= 0x7fffffff;
  348. uint2 &= 0x7fffffff;
  349. return uint1 > uint2 ? 1 : (uint1 == uint2 ? 0 : (-1));
  350. }
  351. if ((uint1 & 0x80000000) != 0) {
  352. return 1;
  353. } else {
  354. return -1;
  355. }
  356. }
  357. function bn_u32_add(add1, add2) {
  358. var i = 0;
  359. var tmp = 0;
  360. var result = 0;
  361. //add1 &= 0xffffffff;
  362. //add2 &= 0xffffffff;
  363. for (i = 0; i < 4; i++) {
  364. tmp = ((add1 >>> (i * 8)) & 0xff) + ((add2 >>> (i * 8)) & 0xff) + tmp;
  365. result |= ((tmp & 0xff) << (i * 8));
  366. tmp = tmp >>> 8;
  367. }
  368. return result & 0xffffffff;
  369. }
  370. /*
  371. function bn_u32_minus(minuend, subtractor) {
  372. var a = (minuend & 0xffffffff) >>> 0;
  373. var b = (subtractor & 0xffffffff) >>> 0;
  374. return (a - b) & 0xffffffff;
  375. }
  376. */
  377. module.exports = {
  378. md5_init: md5_init,
  379. md5_update: md5_update,
  380. md5_final: md5_final,
  381. md5_encode_hex: md5_encode_hex,
  382. md5_str_to_array: md5_str_to_array,
  383. md5_hex_to_array: md5_hex_to_array,
  384. }
  385. /*
  386. var data1 = "Decrypt";
  387. var data0 = "1234567890abcdef9999oplk8563plmh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
  388. var data2 = "96325";
  389. //char buf[128];
  390. //EZERO_ARRAY(buf);
  391. var md5ctx = null;
  392. var result = null;
  393. // 字符串
  394. md5ctx = md5_init();
  395. md5_update(md5ctx, md5_str_to_array(data0), data0.length);
  396. md5_update(md5ctx, md5_str_to_array(data1), data1.length);
  397. md5_update(md5ctx, md5_str_to_array(data2), data2.length);
  398. result = md5_final(md5ctx);
  399. console.log("result:" + md5_encode_hex(result, 16));
  400. // hex
  401. md5ctx = md5_init();
  402. md5_update(md5ctx, md5_hex_to_array("001122334455"), 6);
  403. md5_update(md5ctx, md5_hex_to_array("AABBCCDDEEFF"), 6);
  404. md5_update(md5ctx, md5_hex_to_array("88"), 1);
  405. result = md5_final(md5ctx);
  406. console.log("result:" + md5_encode_hex(result, 16));
  407. */