TypeScripty Sha1

module gtm {export class Sha1 {private blockstart: any;private W = new Array(80);private H0 = 0x67452301;private H1 = 0xEFCDAB89;private H2 = 0x98BADCFE;private H3 = 0x10325476;private H4 = 0xC3D2E1F0;private A; private B;private C;private D;private E;private temp;public msg;private msg_len;private word_array;/*msg :要传入验证的的 sha1字符串*/constructor(msg) {this.word_array = new Array();this.msg = this.Utf8Encode(msg);this.msg_len = this.msg.length;for (let i = 0; i < this.msg_len - 3; i += 4) {let j = this.msg.charCodeAt(i) << 24 | this.msg.charCodeAt(i + 1) << 16 |this.msg.charCodeAt(i + 2) << 8 | this.msg.charCodeAt(i + 3);this.word_array.push(j);}this.initMsg(this.msg_len);}public initMsg(msg_len) {let i;switch (msg_len % 4) {case 0:i = 0x080000000;break;case 1:i = this.msg.charCodeAt(msg_len - 1) << 24 | 0x0800000;break;case 2:i = this.msg.charCodeAt(msg_len - 2) << 24 | this.msg.charCodeAt(msg_len - 1) << 16 | 0x08000;break;case 3:i = this.msg.charCodeAt(msg_len - 3) << 24 | this.msg.charCodeAt(msg_len - 2) << 16 | this.msg.charCodeAt(msg_len - 1) << 8 | 0x80;break;}this.word_array.push(i);while ((this.word_array.length % 16) != 14) this.word_array.push(0);this.word_array.push(msg_len >>> 29);this.word_array.push((msg_len << 3) & 0x0ffffffff);this.getTemp();}public getTemp() {for (this.blockstart = 0; this.blockstart < this.word_array.length; this.blockstart += 16) {for (let i = 0; i < 16; i++) this.W[i] = this.word_array[this.blockstart + i];for (let i = 16; i <= 79; i++) this.W[i] = this.rotate_left(this.W[i - 3] ^ this.W[i - 8] ^ this.W[i - 14] ^ this.W[i - 16], 1);this.A = this.H0;this.B = this.H1;this.C = this.H2;this.D = this.H3;this.E = this.H4;for (let i = 0; i <= 19; i++) {this.temp = (this.rotate_left(this.A, 5) + ((this.B & this.C) | (~this.B & this.D)) + this.E + this.W[i] + 0x5A827999) & 0x0ffffffff;this.E = this.D;this.D = this.C;this.C = this.rotate_left(this.B, 30);this.B = this.A;this.A = this.temp;}for (let i = 20; i <= 39; i++) {this.temp = (this.rotate_left(this.A, 5) + (this.B ^ this.C ^ this.D) + this.E + this.W[i] + 0x6ED9EBA1) & 0x0ffffffff;this.E = this.D;this.D = this.C;this.C = this.rotate_left(this.B, 30);this.B = this.A;this.A = this.temp;}for (let i = 40; i <= 59; i++) {this.temp = (this.rotate_left(this.A, 5) + ((this.B & this.C) | (this.B & this.D) | (this.C & this.D)) + this.E + this.W[i] + 0x8F1BBCDC) & 0x0ffffffff;this.E = this.D;this.D = this.C;this.C = this.rotate_left(this.B, 30);this.B = this.A;this.A = this.temp;}for (let i = 60; i <= 79; i++) {this.temp = (this.rotate_left(this.A, 5) + (this.B ^ this.C ^ this.D) + this.E + this.W[i] + 0xCA62C1D6) & 0x0ffffffff;this.E = this.D;this.D = this.C;this.C = this.rotate_left(this.B, 30);this.B = this.A;this.A = this.temp;}this.H0 = (this.H0 + this.A) & 0x0ffffffff;this.H1 = (this.H1 + this.B) & 0x0ffffffff;this.H2 = (this.H2 + this.C) & 0x0ffffffff;this.H3 = (this.H3 + this.D) & 0x0ffffffff;this.H4 = (this.H4 + this.E) & 0x0ffffffff;}}/**获取sha1加密字符串*/public hex_sha1() {let temp = this.cvt_hex(this.H0) + this.cvt_hex(this.H1) + this.cvt_hex(this.H2) + this.cvt_hex(this.H3) + this.cvt_hex(this.H4);return temp.toLowerCase();}private rotate_left(n, s) {var t4 = (n << s) | (n >>> (32 - s));return t4;};private lsb_hex(val) {var str = "";var i;var vh;var vl;for (i = 0; i <= 6; i += 2) {vh = (val >>> (i * 4 + 4)) & 0x0f;vl = (val >>> (i * 4)) & 0x0f;str += vh.toString(16) + vl.toString(16);}return str;};private cvt_hex(val) {var str = "";var i;var v;for (i = 7; i >= 0; i--) {v = (val >>> (i * 4)) & 0x0f;str += v.toString(16);}return str;};private Utf8Encode(string) {string = string.replace(/\r\n/g, "\n");var utftext = "";for (var n = 0; n < string.length; n++) {var c = string.charCodeAt(n);if (c < 128) {utftext += String.fromCharCode(c);}else if ((c > 127) && (c < 2048)) {utftext += String.fromCharCode((c >> 6) | 192);utftext += String.fromCharCode((c & 63) | 128);}else {utftext += String.fromCharCode((c >> 12) | 224);utftext += String.fromCharCode(((c >> 6) & 63) | 128);utftext += String.fromCharCode((c & 63) | 128);}}return utftext;};}}