Rambox-CE/app/util/MD5.js

Ext.define('Rambox.util.MD5', {
	 singleton: true

	,encypt: function(s, raw, hexcase, chrsz) {
		raw = raw || false;
		hexcase = hexcase || false;
		chrsz = chrsz || 8;

		function safe_add(x, y){
			var lsw = (x & 0xFFFF) + (y & 0xFFFF);
			var msw = (x >> 16) + (y >> 16) + (lsw >> 16);
			return (msw << 16) | (lsw & 0xFFFF);
		}
		function bit_rol(num, cnt){
			return (num << cnt) | (num >>> (32 - cnt));
		}
		function md5_cmn(q, a, b, x, s, t){
			return safe_add(bit_rol(safe_add(safe_add(a, q), safe_add(x, t)), s),b);
		}
		function md5_ff(a, b, c, d, x, s, t){
			return md5_cmn((b & c) | ((~b) & d), a, b, x, s, t);
		}
		function md5_gg(a, b, c, d, x, s, t){
			return md5_cmn((b & d) | (c & (~d)), a, b, x, s, t);
		}
		function md5_hh(a, b, c, d, x, s, t){
			return md5_cmn(b ^ c ^ d, a, b, x, s, t);
		}
		function md5_ii(a, b, c, d, x, s, t){
			return md5_cmn(c ^ (b | (~d)), a, b, x, s, t);
		}

		function core_md5(x, len){
			x[len >> 5] |= 0x80 << ((len) % 32);
			x[(((len + 64) >>> 9) << 4) + 14] = len;
			var a =  1732584193;
			var b = -271733879;
			var c = -1732584194;
			var d =  271733878;
			for(var i = 0; i < x.length; i += 16){
				var olda = a;
				var oldb = b;
				var oldc = c;
				var oldd = d;
				a = md5_ff(a, b, c, d, x[i+ 0], 7 , -680876936);
				d = md5_ff(d, a, b, c, x[i+ 1], 12, -389564586);
				c = md5_ff(c, d, a, b, x[i+ 2], 17,  606105819);
				b = md5_ff(b, c, d, a, x[i+ 3], 22, -1044525330);
				a = md5_ff(a, b, c, d, x[i+ 4], 7 , -176418897);
				d = md5_ff(d, a, b, c, x[i+ 5], 12,  1200080426);
				c = md5_ff(c, d, a, b, x[i+ 6], 17, -1473231341);
				b = md5_ff(b, c, d, a, x[i+ 7], 22, -45705983);
				a = md5_ff(a, b, c, d, x[i+ 8], 7 ,  1770035416);
				d = md5_ff(d, a, b, c, x[i+ 9], 12, -1958414417);
				c = md5_ff(c, d, a, b, x[i+10], 17, -42063);
				b = md5_ff(b, c, d, a, x[i+11], 22, -1990404162);
				a = md5_ff(a, b, c, d, x[i+12], 7 ,  1804603682);
				d = md5_ff(d, a, b, c, x[i+13], 12, -40341101);
				c = md5_ff(c, d, a, b, x[i+14], 17, -1502002290);
				b = md5_ff(b, c, d, a, x[i+15], 22,  1236535329);
				a = md5_gg(a, b, c, d, x[i+ 1], 5 , -165796510);
				d = md5_gg(d, a, b, c, x[i+ 6], 9 , -1069501632);
				c = md5_gg(c, d, a, b, x[i+11], 14,  643717713);
				b = md5_gg(b, c, d, a, x[i+ 0], 20, -373897302);
				a = md5_gg(a, b, c, d, x[i+ 5], 5 , -701558691);
				d = md5_gg(d, a, b, c, x[i+10], 9 ,  38016083);
				c = md5_gg(c, d, a, b, x[i+15], 14, -660478335);
				b = md5_gg(b, c, d, a, x[i+ 4], 20, -405537848);
				a = md5_gg(a, b, c, d, x[i+ 9], 5 ,  568446438);
				d = md5_gg(d, a, b, c, x[i+14], 9 , -1019803690);
				c = md5_gg(c, d, a, b, x[i+ 3], 14, -187363961);
				b = md5_gg(b, c, d, a, x[i+ 8], 20,  1163531501);
				a = md5_gg(a, b, c, d, x[i+13], 5 , -1444681467);
				d = md5_gg(d, a, b, c, x[i+ 2], 9 , -51403784);
				c = md5_gg(c, d, a, b, x[i+ 7], 14,  1735328473);
				b = md5_gg(b, c, d, a, x[i+12], 20, -1926607734);
				a = md5_hh(a, b, c, d, x[i+ 5], 4 , -378558);
				d = md5_hh(d, a, b, c, x[i+ 8], 11, -2022574463);
				c = md5_hh(c, d, a, b, x[i+11], 16,  1839030562);
				b = md5_hh(b, c, d, a, x[i+14], 23, -35309556);
				a = md5_hh(a, b, c, d, x[i+ 1], 4 , -1530992060);
				d = md5_hh(d, a, b, c, x[i+ 4], 11,  1272893353);
				c = md5_hh(c, d, a, b, x[i+ 7], 16, -155497632);
				b = md5_hh(b, c, d, a, x[i+10], 23, -1094730640);
				a = md5_hh(a, b, c, d, x[i+13], 4 ,  681279174);
				d = md5_hh(d, a, b, c, x[i+ 0], 11, -358537222);
				c = md5_hh(c, d, a, b, x[i+ 3], 16, -722521979);
				b = md5_hh(b, c, d, a, x[i+ 6], 23,  76029189);
				a = md5_hh(a, b, c, d, x[i+ 9], 4 , -640364487);
				d = md5_hh(d, a, b, c, x[i+12], 11, -421815835);
				c = md5_hh(c, d, a, b, x[i+15], 16,  530742520);
				b = md5_hh(b, c, d, a, x[i+ 2], 23, -995338651);
				a = md5_ii(a, b, c, d, x[i+ 0], 6 , -198630844);
				d = md5_ii(d, a, b, c, x[i+ 7], 10,  1126891415);
				c = md5_ii(c, d, a, b, x[i+14], 15, -1416354905);
				b = md5_ii(b, c, d, a, x[i+ 5], 21, -57434055);
				a = md5_ii(a, b, c, d, x[i+12], 6 ,  1700485571);
				d = md5_ii(d, a, b, c, x[i+ 3], 10, -1894986606);
				c = md5_ii(c, d, a, b, x[i+10], 15, -1051523);
				b = md5_ii(b, c, d, a, x[i+ 1], 21, -2054922799);
				a = md5_ii(a, b, c, d, x[i+ 8], 6 ,  1873313359);
				d = md5_ii(d, a, b, c, x[i+15], 10, -30611744);
				c = md5_ii(c, d, a, b, x[i+ 6], 15, -1560198380);
				b = md5_ii(b, c, d, a, x[i+13], 21,  1309151649);
				a = md5_ii(a, b, c, d, x[i+ 4], 6 , -145523070);
				d = md5_ii(d, a, b, c, x[i+11], 10, -1120210379);
				c = md5_ii(c, d, a, b, x[i+ 2], 15,  718787259);
				b = md5_ii(b, c, d, a, x[i+ 9], 21, -343485551);
				a = safe_add(a, olda);
				b = safe_add(b, oldb);
				c = safe_add(c, oldc);
				d = safe_add(d, oldd);
			}
			return [a, b, c, d];
		}
		function str2binl(str){
			var bin = [];
			var mask = (1 << chrsz) - 1;
			for(var i = 0; i < str.length * chrsz; i += chrsz) {
				bin[i>>5] |= (str.charCodeAt(i / chrsz) & mask) << (i%32);
			}
			return bin;
		}
		function binl2str(bin){
			var str = "";
			var mask = (1 << chrsz) - 1;
			for(var i = 0; i < bin.length * 32; i += chrsz) {
				str += String.fromCharCode((bin[i>>5] >>> (i % 32)) & mask);
			}
			return str;
		}

		function binl2hex(binarray){
			var hex_tab = hexcase ? "0123456789ABCDEF" : "0123456789abcdef";
			var str = "";
			for(var i = 0; i < binarray.length * 4; i++) {
				str += hex_tab.charAt((binarray[i>>2] >> ((i%4)*8+4)) & 0xF) + hex_tab.charAt((binarray[i>>2] >> ((i%4)*8  )) & 0xF);
			}
			return str;
		}
		return (raw ? binl2str(core_md5(str2binl(s), s.length * chrsz)) : binl2hex(core_md5(str2binl(s), s.length * chrsz))	);
	}
});