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384 lines
13 KiB
384 lines
13 KiB
/**
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* TypeScript Md5加密
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*/
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export default class Md5 {
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/** 能否使用 */
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public static ifUse: boolean = true;
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// One time hashing functions
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public static hashStr(str: string, raw: boolean = false) {
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return this.onePassHasher
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.start()
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.appendStr(str)
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.end(raw);
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}
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public static hashAsciiStr(str: string, raw: boolean = false) {
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return this.onePassHasher
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.start()
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.appendAsciiStr(str)
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.end(raw);
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}
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// Private Static Variables
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private static stateIdentity = new Int32Array([1732584193, -271733879, -1732584194, 271733878]);
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private static buffer32Identity = new Int32Array([0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0]);
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private static hexChars = '012345abcdef';
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private static hexOut: string[] = [];
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// Permanent instance is to use for one-call hashing
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private static onePassHasher = new Md5();
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private static _hex(x: any): string {
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const hc = Md5.hexChars;
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const ho = Md5.hexOut;
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let n;
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let offset;
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let j;
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let i;
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for (i = 0; i < 4; i += 1) {
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offset = i * 8;
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n = x[i];
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for (j = 0; j < 8; j += 2) {
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ho[offset + 1 + j] = hc.charAt(n & 0x0F);
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n >>>= 4;
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ho[offset + 0 + j] = hc.charAt(n & 0x0F);
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n >>>= 4;
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}
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}
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return ho.join('');
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}
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private static _md5cycle(x: Int32Array | Uint32Array, k: Int32Array | Uint32Array) {
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let a = x[0];
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let b = x[1];
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let c = x[2];
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let d = x[3];
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// ff()
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a += (b & c | ~b & d) + k[0] - 680876936 | 0;
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a = (a << 7 | a >>> 25) + b | 0;
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d += (a & b | ~a & c) + k[1] - 389564586 | 0;
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d = (d << 12 | d >>> 20) + a | 0;
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c += (d & a | ~d & b) + k[2] + 606105819 | 0;
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c = (c << 17 | c >>> 15) + d | 0;
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b += (c & d | ~c & a) + k[3] - 1044525330 | 0;
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b = (b << 22 | b >>> 10) + c | 0;
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a += (b & c | ~b & d) + k[4] - 176418897 | 0;
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a = (a << 7 | a >>> 25) + b | 0;
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d += (a & b | ~a & c) + k[5] + 1200080426 | 0;
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d = (d << 12 | d >>> 20) + a | 0;
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c += (d & a | ~d & b) + k[6] - 1473231341 | 0;
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c = (c << 17 | c >>> 15) + d | 0;
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b += (c & d | ~c & a) + k[7] - 45705983 | 0;
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b = (b << 22 | b >>> 10) + c | 0;
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a += (b & c | ~b & d) + k[8] + 1770035416 | 0;
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a = (a << 7 | a >>> 25) + b | 0;
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d += (a & b | ~a & c) + k[9] - 1958414417 | 0;
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d = (d << 12 | d >>> 20) + a | 0;
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c += (d & a | ~d & b) + k[10] - 42063 | 0;
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c = (c << 17 | c >>> 15) + d | 0;
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b += (c & d | ~c & a) + k[11] - 1990404162 | 0;
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b = (b << 22 | b >>> 10) + c | 0;
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a += (b & c | ~b & d) + k[12] + 1804603682 | 0;
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a = (a << 7 | a >>> 25) + b | 0;
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d += (a & b | ~a & c) + k[13] - 40341101 | 0;
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d = (d << 12 | d >>> 20) + a | 0;
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c += (d & a | ~d & b) + k[14] - 1502002290 | 0;
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c = (c << 17 | c >>> 15) + d | 0;
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b += (c & d | ~c & a) + k[15] + 1236535329 | 0;
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b = (b << 22 | b >>> 10) + c | 0;
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// gg()
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a += (b & d | c & ~d) + k[1] - 165796510 | 0;
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a = (a << 5 | a >>> 27) + b | 0;
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d += (a & c | b & ~c) + k[6] - 1069501632 | 0;
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d = (d << 9 | d >>> 23) + a | 0;
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c += (d & b | a & ~b) + k[11] + 643717713 | 0;
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c = (c << 14 | c >>> 18) + d | 0;
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b += (c & a | d & ~a) + k[0] - 373897302 | 0;
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b = (b << 20 | b >>> 12) + c | 0;
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a += (b & d | c & ~d) + k[5] - 701558691 | 0;
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a = (a << 5 | a >>> 27) + b | 0;
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d += (a & c | b & ~c) + k[10] + 38016083 | 0;
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d = (d << 9 | d >>> 23) + a | 0;
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c += (d & b | a & ~b) + k[15] - 660478335 | 0;
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c = (c << 14 | c >>> 18) + d | 0;
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b += (c & a | d & ~a) + k[4] - 405537848 | 0;
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b = (b << 20 | b >>> 12) + c | 0;
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a += (b & d | c & ~d) + k[9] + 568446438 | 0;
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a = (a << 5 | a >>> 27) + b | 0;
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d += (a & c | b & ~c) + k[14] - 1019803690 | 0;
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d = (d << 9 | d >>> 23) + a | 0;
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c += (d & b | a & ~b) + k[3] - 187363961 | 0;
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c = (c << 14 | c >>> 18) + d | 0;
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b += (c & a | d & ~a) + k[8] + 1163531501 | 0;
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b = (b << 20 | b >>> 12) + c | 0;
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a += (b & d | c & ~d) + k[13] - 1444681467 | 0;
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a = (a << 5 | a >>> 27) + b | 0;
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d += (a & c | b & ~c) + k[2] - 51403784 | 0;
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d = (d << 9 | d >>> 23) + a | 0;
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c += (d & b | a & ~b) + k[7] + 1735328473 | 0;
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c = (c << 14 | c >>> 18) + d | 0;
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b += (c & a | d & ~a) + k[12] - 1926607734 | 0;
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b = (b << 20 | b >>> 12) + c | 0;
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// hh()
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a += (b ^ c ^ d) + k[5] - 378558 | 0;
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a = (a << 4 | a >>> 28) + b | 0;
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d += (a ^ b ^ c) + k[8] - 2022574463 | 0;
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d = (d << 11 | d >>> 21) + a | 0;
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c += (d ^ a ^ b) + k[11] + 1839030562 | 0;
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c = (c << 16 | c >>> 16) + d | 0;
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b += (c ^ d ^ a) + k[14] - 35309556 | 0;
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b = (b << 23 | b >>> 9) + c | 0;
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a += (b ^ c ^ d) + k[1] - 1530992060 | 0;
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a = (a << 4 | a >>> 28) + b | 0;
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d += (a ^ b ^ c) + k[4] + 1272893353 | 0;
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d = (d << 11 | d >>> 21) + a | 0;
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c += (d ^ a ^ b) + k[7] - 155497632 | 0;
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c = (c << 16 | c >>> 16) + d | 0;
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b += (c ^ d ^ a) + k[10] - 1094730640 | 0;
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b = (b << 23 | b >>> 9) + c | 0;
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a += (b ^ c ^ d) + k[13] + 681279174 | 0;
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a = (a << 4 | a >>> 28) + b | 0;
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d += (a ^ b ^ c) + k[0] - 358537222 | 0;
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d = (d << 11 | d >>> 21) + a | 0;
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c += (d ^ a ^ b) + k[3] - 722521979 | 0;
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c = (c << 16 | c >>> 16) + d | 0;
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b += (c ^ d ^ a) + k[6] + 76029189 | 0;
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b = (b << 23 | b >>> 9) + c | 0;
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a += (b ^ c ^ d) + k[9] - 640364487 | 0;
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a = (a << 4 | a >>> 28) + b | 0;
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d += (a ^ b ^ c) + k[12] - 421815835 | 0;
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d = (d << 11 | d >>> 21) + a | 0;
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c += (d ^ a ^ b) + k[15] + 530742520 | 0;
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c = (c << 16 | c >>> 16) + d | 0;
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b += (c ^ d ^ a) + k[2] - 995338651 | 0;
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b = (b << 23 | b >>> 9) + c | 0;
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// ii()
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a += (c ^ (b | ~d)) + k[0] - 198630844 | 0;
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a = (a << 6 | a >>> 26) + b | 0;
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d += (b ^ (a | ~c)) + k[7] + 1126891415 | 0;
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d = (d << 10 | d >>> 22) + a | 0;
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c += (a ^ (d | ~b)) + k[14] - 1416354905 | 0;
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c = (c << 15 | c >>> 17) + d | 0;
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b += (d ^ (c | ~a)) + k[5] - 57434055 | 0;
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b = (b << 21 | b >>> 11) + c | 0;
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a += (c ^ (b | ~d)) + k[12] + 1700485571 | 0;
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a = (a << 6 | a >>> 26) + b | 0;
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d += (b ^ (a | ~c)) + k[3] - 1894986606 | 0;
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d = (d << 10 | d >>> 22) + a | 0;
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c += (a ^ (d | ~b)) + k[10] - 1051523 | 0;
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c = (c << 15 | c >>> 17) + d | 0;
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b += (d ^ (c | ~a)) + k[1] - 2054922799 | 0;
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b = (b << 21 | b >>> 11) + c | 0;
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a += (c ^ (b | ~d)) + k[8] + 1873313359 | 0;
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a = (a << 6 | a >>> 26) + b | 0;
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d += (b ^ (a | ~c)) + k[15] - 30611744 | 0;
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d = (d << 10 | d >>> 22) + a | 0;
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c += (a ^ (d | ~b)) + k[6] - 1560198380 | 0;
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c = (c << 15 | c >>> 17) + d | 0;
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b += (d ^ (c | ~a)) + k[13] + 1309151649 | 0;
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b = (b << 21 | b >>> 11) + c | 0;
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a += (c ^ (b | ~d)) + k[4] - 145523070 | 0;
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a = (a << 6 | a >>> 26) + b | 0;
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d += (b ^ (a | ~c)) + k[11] - 1120210379 | 0;
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d = (d << 10 | d >>> 22) + a | 0;
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c += (a ^ (d | ~b)) + k[2] + 718787259 | 0;
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c = (c << 15 | c >>> 17) + d | 0;
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b += (d ^ (c | ~a)) + k[9] - 343485551 | 0;
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b = (b << 21 | b >>> 11) + c | 0;
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x[0] = a + x[0] | 0;
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x[1] = b + x[1] | 0;
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x[2] = c + x[2] | 0;
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x[3] = d + x[3] | 0;
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}
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private _dataLength: number;
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private _bufferLength: number;
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private _state: Int32Array = new Int32Array(4);
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private _buffer: ArrayBuffer = new ArrayBuffer(68);
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private _buffer8: Uint8Array;
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private _buffer32: Uint32Array;
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constructor() {
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this._buffer8 = new Uint8Array(this._buffer, 0, 68);
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this._buffer32 = new Uint32Array(this._buffer, 0, 17);
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this.start();
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}
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public start() {
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this._dataLength = 0;
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this._bufferLength = 0;
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this._state.set(Md5.stateIdentity);
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return this;
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}
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// Char to code point to to array conversion:
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// https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/String/charCodeAt
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// #Example.3A_Fixing_charCodeAt_to_handle_non-Basic-Multilingual-Plane_characters_if_their_presence_earlier_in_the_string_is_unknown
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public appendStr(str: string) {
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const buf8 = this._buffer8;
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const buf32 = this._buffer32;
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let bufLen = this._bufferLength;
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let code;
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let i;
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for (i = 0; i < str.length; i += 1) {
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code = str.charCodeAt(i);
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if (code < 128) {
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buf8[bufLen++] = code;
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} else if (code < 0x800) {
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buf8[bufLen++] = (code >>> 6) + 0xC0;
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buf8[bufLen++] = code & 0x3F | 0x80;
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} else if (code < 0xD800 || code > 0xDBFF) {
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buf8[bufLen++] = (code >>> 12) + 0xE0;
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buf8[bufLen++] = (code >>> 6 & 0x3F) | 0x80;
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buf8[bufLen++] = (code & 0x3F) | 0x80;
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} else {
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code = ((code - 0xD800) * 0x400) + (str.charCodeAt(++i) - 0xDC00) + 0x10000;
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if (code > 0x10FFFF) {
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throw new Error('Unicode standard supports code points up to U+10FFFF');
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}
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buf8[bufLen++] = (code >>> 18) + 0xF0;
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buf8[bufLen++] = (code >>> 12 & 0x3F) | 0x80;
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buf8[bufLen++] = (code >>> 6 & 0x3F) | 0x80;
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buf8[bufLen++] = (code & 0x3F) | 0x80;
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}
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if (bufLen >= 64) {
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this._dataLength += 64;
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Md5._md5cycle(this._state, buf32);
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bufLen -= 64;
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buf32[0] = buf32[16];
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}
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}
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this._bufferLength = bufLen;
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return this;
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}
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public appendAsciiStr(str: string) {
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const buf8 = this._buffer8;
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const buf32 = this._buffer32;
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let bufLen = this._bufferLength;
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let i;
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let j = 0;
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for (; ;) {
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i = Math.min(str.length - j, 64 - bufLen);
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while (i--) {
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buf8[bufLen++] = str.charCodeAt(j++);
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}
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if (bufLen < 64) {
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break;
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}
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this._dataLength += 64;
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Md5._md5cycle(this._state, buf32);
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bufLen = 0;
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}
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this._bufferLength = bufLen;
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return this;
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}
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public appendByteArray(input: Uint8Array) {
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const buf8 = this._buffer8;
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const buf32 = this._buffer32;
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let bufLen = this._bufferLength;
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let i;
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let j = 0;
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for (; ;) {
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i = Math.min(input.length - j, 64 - bufLen);
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while (i--) {
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buf8[bufLen++] = input[j++];
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}
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if (bufLen < 64) {
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break;
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}
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this._dataLength += 64;
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Md5._md5cycle(this._state, buf32);
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bufLen = 0;
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}
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this._bufferLength = bufLen;
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return this;
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}
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public getState() {
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const self = this;
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const s = self._state;
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return {
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buffer: String.fromCharCode.apply(null, self._buffer8),
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buflen: self._bufferLength,
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length: self._dataLength,
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state: [s[0], s[1], s[2], s[3]]
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};
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}
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public setState(state: any) {
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const buf = state.buffer;
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const x = state.state;
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const s = this._state;
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let i;
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this._dataLength = state.length;
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this._bufferLength = state.buflen;
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s[0] = x[0];
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s[1] = x[1];
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s[2] = x[2];
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s[3] = x[3];
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for (i = 0; i < buf.length; i += 1) {
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this._buffer8[i] = buf.charCodeAt(i);
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}
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}
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public end(raw: boolean = false) {
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const bufLen = this._bufferLength;
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const buf8 = this._buffer8;
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const buf32 = this._buffer32;
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const i = (bufLen >> 2) + 1;
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let dataBitsLen;
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this._dataLength += bufLen;
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buf8[bufLen] = 0x80;
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buf8[bufLen + 1] = buf8[bufLen + 2] = buf8[bufLen + 3] = 0;
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buf32.set(Md5.buffer32Identity.subarray(i), i);
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if (bufLen > 55) {
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Md5._md5cycle(this._state, buf32);
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buf32.set(Md5.buffer32Identity);
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}
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// Do the final computation based on the tail and length
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// Beware that the final length may not fit in 32 bits so we take care of that
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dataBitsLen = this._dataLength * 8;
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if (dataBitsLen <= 0xFFFFFFFF) {
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buf32[14] = dataBitsLen;
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} else {
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const matches = dataBitsLen.toString(16).match(/(.*?)(.{0,8})$/);
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if (matches === null) {
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return;
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}
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const lo = parseInt(matches[2], 16);
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const hi = parseInt(matches[1], 16) || 0;
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buf32[14] = lo;
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buf32[15] = hi;
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}
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Md5._md5cycle(this._state, buf32);
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return raw ? this._state : Md5._hex(this._state);
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}
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}
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//检查Md5是否可用
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if (Md5.hashStr('hello') !== '541402ef4f2ebafdb1dd1101b5d2') {
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//设置不能使用
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Md5.ifUse = false;
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//ConsoleEx.Warn('Md5 self test failed.');
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}
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window["MyMd5"] = Md5;
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