@nogsantos/hash
Version:
Sha1 and Md5 hash encoder for javascript
266 lines (257 loc) • 11.9 kB
JavaScript
"use strict";
Object.defineProperty(exports, "__esModule", {
value: true
});
var _createClass = function () { function defineProperties(target, props) { for (var i = 0; i < props.length; i++) { var descriptor = props[i]; descriptor.enumerable = descriptor.enumerable || false; descriptor.configurable = true; if ("value" in descriptor) descriptor.writable = true; Object.defineProperty(target, descriptor.key, descriptor); } } return function (Constructor, protoProps, staticProps) { if (protoProps) defineProperties(Constructor.prototype, protoProps); if (staticProps) defineProperties(Constructor, staticProps); return Constructor; }; }();
function _classCallCheck(instance, Constructor) { if (!(instance instanceof Constructor)) { throw new TypeError("Cannot call a class as a function"); } }
var Md5 = exports.Md5 = function () {
function Md5() {
_classCallCheck(this, Md5);
}
_createClass(Md5, [{
key: "_rotateLeft",
value: function _rotateLeft(lValue, iShiftBits) {
return lValue << iShiftBits | lValue >>> 32 - iShiftBits;
}
}, {
key: "_addUnsigned",
value: function _addUnsigned(lX, lY) {
var lX4, lY4, lX8, lY8, lResult;
lX8 = lX & 0x80000000;
lY8 = lY & 0x80000000;
lX4 = lX & 0x40000000;
lY4 = lY & 0x40000000;
lResult = (lX & 0x3FFFFFFF) + (lY & 0x3FFFFFFF);
if (lX4 & lY4) {
return lResult ^ 0x80000000 ^ lX8 ^ lY8;
}
if (lX4 | lY4) {
if (lResult & 0x40000000) {
return lResult ^ 0xC0000000 ^ lX8 ^ lY8;
} else {
return lResult ^ 0x40000000 ^ lX8 ^ lY8;
}
} else {
return lResult ^ lX8 ^ lY8;
}
}
}, {
key: "_f",
value: function _f(x, y, z) {
return x & y | ~x & z;
}
}, {
key: "_g",
value: function _g(x, y, z) {
return x & z | y & ~z;
}
}, {
key: "_h",
value: function _h(x, y, z) {
return x ^ y ^ z;
}
}, {
key: "_i",
value: function _i(x, y, z) {
return y ^ (x | ~z);
}
}, {
key: "_ff",
value: function _ff(a, b, c, d, x, s, ac) {
a = this._addUnsigned(a, this._addUnsigned(this._addUnsigned(this._f(b, c, d), x), ac));
return this._addUnsigned(this._rotateLeft(a, s), b);
}
}, {
key: "_gg",
value: function _gg(a, b, c, d, x, s, ac) {
a = this._addUnsigned(a, this._addUnsigned(this._addUnsigned(this._g(b, c, d), x), ac));
return this._addUnsigned(this._rotateLeft(a, s), b);
}
}, {
key: "_hh",
value: function _hh(a, b, c, d, x, s, ac) {
a = this._addUnsigned(a, this._addUnsigned(this._addUnsigned(this._h(b, c, d), x), ac));
return this._addUnsigned(this._rotateLeft(a, s), b);
}
}, {
key: "_ii",
value: function _ii(a, b, c, d, x, s, ac) {
a = this._addUnsigned(a, this._addUnsigned(this._addUnsigned(this._i(b, c, d), x), ac));
return this._addUnsigned(this._rotateLeft(a, s), b);
}
}, {
key: "_convertToWordArray",
value: function _convertToWordArray(string) {
var lWordCount;
var lMessageLength = string.length;
var lNumberOfWords_temp1 = lMessageLength + 8;
var lNumberOfWords_temp2 = (lNumberOfWords_temp1 - lNumberOfWords_temp1 % 64) / 64;
var lNumberOfWords = (lNumberOfWords_temp2 + 1) * 16;
var lWordArray = Array(lNumberOfWords - 1);
var lBytePosition = 0;
var lByteCount = 0;
while (lByteCount < lMessageLength) {
lWordCount = (lByteCount - lByteCount % 4) / 4;
lBytePosition = lByteCount % 4 * 8;
lWordArray[lWordCount] = lWordArray[lWordCount] | string.charCodeAt(lByteCount) << lBytePosition;
lByteCount++;
}
lWordCount = (lByteCount - lByteCount % 4) / 4;
lBytePosition = lByteCount % 4 * 8;
lWordArray[lWordCount] = lWordArray[lWordCount] | 0x80 << lBytePosition;
lWordArray[lNumberOfWords - 2] = lMessageLength << 3;
lWordArray[lNumberOfWords - 1] = lMessageLength >>> 29;
return lWordArray;
}
}, {
key: "_wordToHex",
value: function _wordToHex(lValue) {
var WordToHexValue = "",
WordToHexValue_temp = "",
lByte,
lCount;
for (lCount = 0; lCount <= 3; lCount++) {
lByte = lValue >>> lCount * 8 & 255;
WordToHexValue_temp = "0" + lByte.toString(16);
WordToHexValue = WordToHexValue + WordToHexValue_temp.substr(WordToHexValue_temp.length - 2, 2);
}
return WordToHexValue;
}
}, {
key: "_utf8Encode",
value: function _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;
}
}, {
key: "encode",
value: function encode(string) {
if (!string) {
return null;
}
var x = Array();
var k = void 0,
AA = void 0,
BB = void 0,
CC = void 0,
DD = void 0,
a = void 0,
b = void 0,
c = void 0,
d = void 0;
var S11 = 7,
S12 = 12,
S13 = 17,
S14 = 22;
var S21 = 5,
S22 = 9,
S23 = 14,
S24 = 20;
var S31 = 4,
S32 = 11,
S33 = 16,
S34 = 23;
var S41 = 6,
S42 = 10,
S43 = 15,
S44 = 21;
string = this._utf8Encode(string);
x = this._convertToWordArray(string);
a = 0x67452301;
b = 0xEFCDAB89;
c = 0x98BADCFE;
d = 0x10325476;
for (k = 0; k < x.length; k += 16) {
AA = a;
BB = b;
CC = c;
DD = d;
a = this._ff(a, b, c, d, x[k + 0], S11, 0xD76AA478);
d = this._ff(d, a, b, c, x[k + 1], S12, 0xE8C7B756);
c = this._ff(c, d, a, b, x[k + 2], S13, 0x242070DB);
b = this._ff(b, c, d, a, x[k + 3], S14, 0xC1BDCEEE);
a = this._ff(a, b, c, d, x[k + 4], S11, 0xF57C0FAF);
d = this._ff(d, a, b, c, x[k + 5], S12, 0x4787C62A);
c = this._ff(c, d, a, b, x[k + 6], S13, 0xA8304613);
b = this._ff(b, c, d, a, x[k + 7], S14, 0xFD469501);
a = this._ff(a, b, c, d, x[k + 8], S11, 0x698098D8);
d = this._ff(d, a, b, c, x[k + 9], S12, 0x8B44F7AF);
c = this._ff(c, d, a, b, x[k + 10], S13, 0xFFFF5BB1);
b = this._ff(b, c, d, a, x[k + 11], S14, 0x895CD7BE);
a = this._ff(a, b, c, d, x[k + 12], S11, 0x6B901122);
d = this._ff(d, a, b, c, x[k + 13], S12, 0xFD987193);
c = this._ff(c, d, a, b, x[k + 14], S13, 0xA679438E);
b = this._ff(b, c, d, a, x[k + 15], S14, 0x49B40821);
a = this._gg(a, b, c, d, x[k + 1], S21, 0xF61E2562);
d = this._gg(d, a, b, c, x[k + 6], S22, 0xC040B340);
c = this._gg(c, d, a, b, x[k + 11], S23, 0x265E5A51);
b = this._gg(b, c, d, a, x[k + 0], S24, 0xE9B6C7AA);
a = this._gg(a, b, c, d, x[k + 5], S21, 0xD62F105D);
d = this._gg(d, a, b, c, x[k + 10], S22, 0x2441453);
c = this._gg(c, d, a, b, x[k + 15], S23, 0xD8A1E681);
b = this._gg(b, c, d, a, x[k + 4], S24, 0xE7D3FBC8);
a = this._gg(a, b, c, d, x[k + 9], S21, 0x21E1CDE6);
d = this._gg(d, a, b, c, x[k + 14], S22, 0xC33707D6);
c = this._gg(c, d, a, b, x[k + 3], S23, 0xF4D50D87);
b = this._gg(b, c, d, a, x[k + 8], S24, 0x455A14ED);
a = this._gg(a, b, c, d, x[k + 13], S21, 0xA9E3E905);
d = this._gg(d, a, b, c, x[k + 2], S22, 0xFCEFA3F8);
c = this._gg(c, d, a, b, x[k + 7], S23, 0x676F02D9);
b = this._gg(b, c, d, a, x[k + 12], S24, 0x8D2A4C8A);
a = this._hh(a, b, c, d, x[k + 5], S31, 0xFFFA3942);
d = this._hh(d, a, b, c, x[k + 8], S32, 0x8771F681);
c = this._hh(c, d, a, b, x[k + 11], S33, 0x6D9D6122);
b = this._hh(b, c, d, a, x[k + 14], S34, 0xFDE5380C);
a = this._hh(a, b, c, d, x[k + 1], S31, 0xA4BEEA44);
d = this._hh(d, a, b, c, x[k + 4], S32, 0x4BDECFA9);
c = this._hh(c, d, a, b, x[k + 7], S33, 0xF6BB4B60);
b = this._hh(b, c, d, a, x[k + 10], S34, 0xBEBFBC70);
a = this._hh(a, b, c, d, x[k + 13], S31, 0x289B7EC6);
d = this._hh(d, a, b, c, x[k + 0], S32, 0xEAA127FA);
c = this._hh(c, d, a, b, x[k + 3], S33, 0xD4EF3085);
b = this._hh(b, c, d, a, x[k + 6], S34, 0x4881D05);
a = this._hh(a, b, c, d, x[k + 9], S31, 0xD9D4D039);
d = this._hh(d, a, b, c, x[k + 12], S32, 0xE6DB99E5);
c = this._hh(c, d, a, b, x[k + 15], S33, 0x1FA27CF8);
b = this._hh(b, c, d, a, x[k + 2], S34, 0xC4AC5665);
a = this._ii(a, b, c, d, x[k + 0], S41, 0xF4292244);
d = this._ii(d, a, b, c, x[k + 7], S42, 0x432AFF97);
c = this._ii(c, d, a, b, x[k + 14], S43, 0xAB9423A7);
b = this._ii(b, c, d, a, x[k + 5], S44, 0xFC93A039);
a = this._ii(a, b, c, d, x[k + 12], S41, 0x655B59C3);
d = this._ii(d, a, b, c, x[k + 3], S42, 0x8F0CCC92);
c = this._ii(c, d, a, b, x[k + 10], S43, 0xFFEFF47D);
b = this._ii(b, c, d, a, x[k + 1], S44, 0x85845DD1);
a = this._ii(a, b, c, d, x[k + 8], S41, 0x6FA87E4F);
d = this._ii(d, a, b, c, x[k + 15], S42, 0xFE2CE6E0);
c = this._ii(c, d, a, b, x[k + 6], S43, 0xA3014314);
b = this._ii(b, c, d, a, x[k + 13], S44, 0x4E0811A1);
a = this._ii(a, b, c, d, x[k + 4], S41, 0xF7537E82);
d = this._ii(d, a, b, c, x[k + 11], S42, 0xBD3AF235);
c = this._ii(c, d, a, b, x[k + 2], S43, 0x2AD7D2BB);
b = this._ii(b, c, d, a, x[k + 9], S44, 0xEB86D391);
a = this._addUnsigned(a, AA);
b = this._addUnsigned(b, BB);
c = this._addUnsigned(c, CC);
d = this._addUnsigned(d, DD);
}
var temp = this._wordToHex(a) + this._wordToHex(b) + this._wordToHex(c) + this._wordToHex(d);
return temp.toLowerCase();
}
}]);
return Md5;
}();