https://www.chieflearningofficer.com/wp-content/plugins/superfly-m…/icon_manager/js/md5.js?ver=1.0%2C0

1function md5cycle(x, k) {
2    var a = x[0], b = x[1], c = x[2], d = x[3];
3
4    a = ff(a, b, c, d, k[0], 7, -680876936);
5    d = ff(d, a, b, c, k[1], 12, -389564586);
6    c = ff(c, d, a, b, k[2], 17,  606105819);
7    b = ff(b, c, d, a, k[3], 22, -1044525330);
8    a = ff(a, b, c, d, k[4], 7, -176418897);
9    d = ff(d, a, b, c, k[5], 12,  1200080426);
10    c = ff(c, d, a, b, k[6], 17, -1473231341);
11    b = ff(b, c, d, a, k[7], 22, -45705983);
12    a = ff(a, b, c, d, k[8], 7,  1770035416);
13    d = ff(d, a, b, c, k[9], 12, -1958414417);
14    c = ff(c, d, a, b, k[10], 17, -42063);
15    b = ff(b, c, d, a, k[11], 22, -1990404162);
16    a = ff(a, b, c, d, k[12], 7,  1804603682);
17    d = ff(d, a, b, c, k[13], 12, -40341101);
18    c = ff(c, d, a, b, k[14], 17, -1502002290);
19    b = ff(b, c, d, a, k[15], 22,  1236535329);
20
21    a = gg(a, b, c, d, k[1], 5, -165796510);
22    d = gg(d, a, b, c, k[6], 9, -1069501632);
23    c = gg(c, d, a, b, k[11], 14,  643717713);
24    b = gg(b, c, d, a, k[0], 20, -373897302);
25    a = gg(a, b, c, d, k[5], 5, -701558691);
26    d = gg(d, a, b, c, k[10], 9,  38016083);
27    c = gg(c, d, a, b, k[15], 14, -660478335);
28    b = gg(b, c, d, a, k[4], 20, -405537848);
29    a = gg(a, b, c, d, k[9], 5,  568446438);
30    d = gg(d, a, b, c, k[14], 9, -1019803690);
31    c = gg(c, d, a, b, k[3], 14, -187363961);
32    b = gg(b, c, d, a, k[8], 20,  1163531501);
33    a = gg(a, b, c, d, k[13], 5, -1444681467);
34    d = gg(d, a, b, c, k[2], 9, -51403784);
35    c = gg(c, d, a, b, k[7], 14,  1735328473);
36    b = gg(b, c, d, a, k[12], 20, -1926607734);
37
38    a = hh(a, b, c, d, k[5], 4, -378558);
39    d = hh(d, a, b, c, k[8], 11, -2022574463);
40    c = hh(c, d, a, b, k[11], 16,  1839030562);
41    b = hh(b, c, d, a, k[14], 23, -35309556);
42    a = hh(a, b, c, d, k[1], 4, -1530992060);
43    d = hh(d, a, b, c, k[4], 11,  1272893353);
44    c = hh(c, d, a, b, k[7], 16, -155497632);
45    b = hh(b, c, d, a, k[10], 23, -1094730640);
46    a = hh(a, b, c, d, k[13], 4,  681279174);
47    d = hh(d, a, b, c, k[0], 11, -358537222);
48    c = hh(c, d, a, b, k[3], 16, -722521979);
49    b = hh(b, c, d, a, k[6], 23,  76029189);
50    a = hh(a, b, c, d, k[9], 4, -640364487);
51    d = hh(d, a, b, c, k[12], 11, -421815835);
52    c = hh(c, d, a, b, k[15], 16,  530742520);
53    b = hh(b, c, d, a, k[2], 23, -995338651);
54
55    a = ii(a, b, c, d, k[0], 6, -198630844);
56    d = ii(d, a, b, c, k[7], 10,  1126891415);
57    c = ii(c, d, a, b, k[14], 15, -1416354905);
58    b = ii(b, c, d, a, k[5], 21, -57434055);
59    a = ii(a, b, c, d, k[12], 6,  1700485571);
60    d = ii(d, a, b, c, k[3], 10, -1894986606);
61    c = ii(c, d, a, b, k[10], 15, -1051523);
62    b = ii(b, c, d, a, k[1], 21, -2054922799);
63    a = ii(a, b, c, d, k[8], 6,  1873313359);
64    d = ii(d, a, b, c, k[15], 10, -30611744);
65    c = ii(c, d, a, b, k[6], 15, -1560198380);
66    b = ii(b, c, d, a, k[13], 21,  1309151649);
67    a = ii(a, b, c, d, k[4], 6, -145523070);
68    d = ii(d, a, b, c, k[11], 10, -1120210379);
69    c = ii(c, d, a, b, k[2], 15,  718787259);
70    b = ii(b, c, d, a, k[9], 21, -343485551);
71
72    x[0] = add32(a, x[0]);
73    x[1] = add32(b, x[1]);
74    x[2] = add32(c, x[2]);
75    x[3] = add32(d, x[3]);
76
77}
78
79function cmn(q, a, b, x, s, t) {
80    a = add32(add32(a, q), add32(x, t));
81    return add32((a << s) | (a >>> (32 - s)), b);
82}
83
84function ff(a, b, c, d, x, s, t) {
85    return cmn((b & c) | ((~b) & d), a, b, x, s, t);
86}
87
88function gg(a, b, c, d, x, s, t) {
89    return cmn((b & d) | (c & (~d)), a, b, x, s, t);
90}
91
92function hh(a, b, c, d, x, s, t) {
93    return cmn(b ^ c ^ d, a, b, x, s, t);
94}
95
96function ii(a, b, c, d, x, s, t) {
97    return cmn(c ^ (b | (~d)), a, b, x, s, t);
98}
99
100function md51(s) {
101    txt = '';
102    var n = s.length,
103        state = [1732584193, -271733879, -1732584194, 271733878], i;
104    for (i=64; i<=s.length; i+=64) {
105        md5cycle(state, md5blk(s.substring(i-64, i)));
106    }
107    s = s.substring(i-64);
108    var tail = [0,0,0,0, 0,0,0,0, 0,0,0,0, 0,0,0,0];
109    for (i=0; i<s.length; i++)
110        tail[i>>2] |= s.charCodeAt(i) << ((i%4) << 3);
111    tail[i>>2] |= 0x80 << ((i%4) << 3);
112    if (i > 55) {
113        md5cycle(state, tail);
114        for (i=0; i<16;

114 i++) tail[i] = 0;
115    }
116    tail[14] = n*8;
117    md5cycle(state, tail);
118    return state;
119}
120
121/* there needs to be support for Unicode here,
122 * unless we pretend that we can redefine the MD-5
123 * algorithm for multi-byte characters (perhaps
124 * by adding every four 16-bit characters and
125 * shortening the sum to 32 bits). Otherwise
126 * I suggest performing MD-5 as if every character
127 * was two bytes--e.g., 0040 0025 = @%--but then
128 * how will an ordinary MD-5 sum be matched?
129 * There is no way to standardize text to something
130 * like UTF-8 before transformation; speed cost is
131 * utterly prohibitive. The JavaScript standard
132 * itself needs to look at this: it should start
133 * providing access to strings as preformed UTF-8
134 * 8-bit unsigned value arrays.
135 */
136function md5blk(s) { /* I figured global was faster.   */
137    var md5blks = [], i; /* Andy King said do it this way. */
138    for (i=0; i<64; i+=4) {
139        md5blks[i>>2] = s.charCodeAt(i)
140            + (s.charCodeAt(i+1) << 8)
141            + (s.charCodeAt(i+2) << 16)
142            + (s.charCodeAt(i+3) << 24);
143    }
144    return md5blks;
145}
146
147var hex_chr = '0123456789abcdef'.split('');
148
149function rhex(n)
150{
151    var s='', j=0;
152    for(; j<4; j++)
153        s += hex_chr[(n >> (j * 8 + 4)) & 0x0F]
154            + hex_chr[(n >> (j * 8)) & 0x0F];
155    return s;
156}
157
158function hex(x) {
159    for (var i=0; i<x.length; i++)
160        x[i] = rhex(x[i]);
161    return x.join('');
162}
163
164function md5(s) {
165    return hex(md51(s));
166}
167
168/* this function is much faster,
169 so if possible we use it. Some IEs
170 are the only ones I know of that
171 need the idiotic second function,
172 generated by an if clause.  */
173
174function add32(a, b) {
175    return (a + b) & 0xFFFFFFFF;
176}
177
178if (md5('hello') != '5d41402abc4b2a76b9719d911017c592') {
179    function add32(x, y) {
180        var lsw = (x & 0xFFFF) + (y & 0xFFFF),
181            msw = (x >> 16) + (y >> 16) + (lsw >> 16);
182        return (msw << 16) | (lsw & 0xFFFF);
183    }
184}