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‎md5.js

Lines changed: 163 additions & 163 deletions
Original file line numberDiff line numberDiff line change
@@ -1,163 +1,163 @@
1-
/*
2-
* A JavaScript implementation of the RSA Data Security, Inc. MD5 Message
3-
* Digest Algorithm, as defined in RFC 1321.
4-
* Version 2.1 Copyright (C) Paul Johnston 1999 - 2002.
5-
* Other contributors: Greg Holt, Andrew Kepert, Ydnar, Lostinet
6-
* Distributed under the BSD License
7-
* See http://pajhome.org.uk/crypt/md5 for more info.
8-
*/
9-
10-
var helpers = require('./helpers');
11-
12-
/*
13-
* Perform a simple self-test to see if the VM is working
14-
*/
15-
function md5_vm_test()
16-
{
17-
return hex_md5("abc") == "900150983cd24fb0d6963f7d28e17f72";
18-
}
19-
20-
/*
21-
* Calculate the MD5 of an array of little-endian words, and a bit length
22-
*/
23-
function core_md5(x, len)
24-
{
25-
/* append padding */
26-
x[len >> 5] |= 0x80 << ((len) % 32);
27-
x[(((len + 64) >>> 9) << 4) + 14] = len;
28-
29-
var a = 1732584193;
30-
var b = -271733879;
31-
var c = -1732584194;
32-
var d = 271733878;
33-
34-
for(var i = 0; i < x.length; i += 16)
35-
{
36-
var olda = a;
37-
var oldb = b;
38-
var oldc = c;
39-
var oldd = d;
40-
41-
a = md5_ff(a, b, c, d, x[i+ 0], 7 , -680876936);
42-
d = md5_ff(d, a, b, c, x[i+ 1], 12, -389564586);
43-
c = md5_ff(c, d, a, b, x[i+ 2], 17, 606105819);
44-
b = md5_ff(b, c, d, a, x[i+ 3], 22, -1044525330);
45-
a = md5_ff(a, b, c, d, x[i+ 4], 7 , -176418897);
46-
d = md5_ff(d, a, b, c, x[i+ 5], 12, 1200080426);
47-
c = md5_ff(c, d, a, b, x[i+ 6], 17, -1473231341);
48-
b = md5_ff(b, c, d, a, x[i+ 7], 22, -45705983);
49-
a = md5_ff(a, b, c, d, x[i+ 8], 7 , 1770035416);
50-
d = md5_ff(d, a, b, c, x[i+ 9], 12, -1958414417);
51-
c = md5_ff(c, d, a, b, x[i+10], 17, -42063);
52-
b = md5_ff(b, c, d, a, x[i+11], 22, -1990404162);
53-
a = md5_ff(a, b, c, d, x[i+12], 7 , 1804603682);
54-
d = md5_ff(d, a, b, c, x[i+13], 12, -40341101);
55-
c = md5_ff(c, d, a, b, x[i+14], 17, -1502002290);
56-
b = md5_ff(b, c, d, a, x[i+15], 22, 1236535329);
57-
58-
a = md5_gg(a, b, c, d, x[i+ 1], 5 , -165796510);
59-
d = md5_gg(d, a, b, c, x[i+ 6], 9 , -1069501632);
60-
c = md5_gg(c, d, a, b, x[i+11], 14, 643717713);
61-
b = md5_gg(b, c, d, a, x[i+ 0], 20, -373897302);
62-
a = md5_gg(a, b, c, d, x[i+ 5], 5 , -701558691);
63-
d = md5_gg(d, a, b, c, x[i+10], 9 , 38016083);
64-
c = md5_gg(c, d, a, b, x[i+15], 14, -660478335);
65-
b = md5_gg(b, c, d, a, x[i+ 4], 20, -405537848);
66-
a = md5_gg(a, b, c, d, x[i+ 9], 5 , 568446438);
67-
d = md5_gg(d, a, b, c, x[i+14], 9 , -1019803690);
68-
c = md5_gg(c, d, a, b, x[i+ 3], 14, -187363961);
69-
b = md5_gg(b, c, d, a, x[i+ 8], 20, 1163531501);
70-
a = md5_gg(a, b, c, d, x[i+13], 5 , -1444681467);
71-
d = md5_gg(d, a, b, c, x[i+ 2], 9 , -51403784);
72-
c = md5_gg(c, d, a, b, x[i+ 7], 14, 1735328473);
73-
b = md5_gg(b, c, d, a, x[i+12], 20, -1926607734);
74-
75-
a = md5_hh(a, b, c, d, x[i+ 5], 4 , -378558);
76-
d = md5_hh(d, a, b, c, x[i+ 8], 11, -2022574463);
77-
c = md5_hh(c, d, a, b, x[i+11], 16, 1839030562);
78-
b = md5_hh(b, c, d, a, x[i+14], 23, -35309556);
79-
a = md5_hh(a, b, c, d, x[i+ 1], 4 , -1530992060);
80-
d = md5_hh(d, a, b, c, x[i+ 4], 11, 1272893353);
81-
c = md5_hh(c, d, a, b, x[i+ 7], 16, -155497632);
82-
b = md5_hh(b, c, d, a, x[i+10], 23, -1094730640);
83-
a = md5_hh(a, b, c, d, x[i+13], 4 , 681279174);
84-
d = md5_hh(d, a, b, c, x[i+ 0], 11, -358537222);
85-
c = md5_hh(c, d, a, b, x[i+ 3], 16, -722521979);
86-
b = md5_hh(b, c, d, a, x[i+ 6], 23, 76029189);
87-
a = md5_hh(a, b, c, d, x[i+ 9], 4 , -640364487);
88-
d = md5_hh(d, a, b, c, x[i+12], 11, -421815835);
89-
c = md5_hh(c, d, a, b, x[i+15], 16, 530742520);
90-
b = md5_hh(b, c, d, a, x[i+ 2], 23, -995338651);
91-
92-
a = md5_ii(a, b, c, d, x[i+ 0], 6 , -198630844);
93-
d = md5_ii(d, a, b, c, x[i+ 7], 10, 1126891415);
94-
c = md5_ii(c, d, a, b, x[i+14], 15, -1416354905);
95-
b = md5_ii(b, c, d, a, x[i+ 5], 21, -57434055);
96-
a = md5_ii(a, b, c, d, x[i+12], 6 , 1700485571);
97-
d = md5_ii(d, a, b, c, x[i+ 3], 10, -1894986606);
98-
c = md5_ii(c, d, a, b, x[i+10], 15, -1051523);
99-
b = md5_ii(b, c, d, a, x[i+ 1], 21, -2054922799);
100-
a = md5_ii(a, b, c, d, x[i+ 8], 6 , 1873313359);
101-
d = md5_ii(d, a, b, c, x[i+15], 10, -30611744);
102-
c = md5_ii(c, d, a, b, x[i+ 6], 15, -1560198380);
103-
b = md5_ii(b, c, d, a, x[i+13], 21, 1309151649);
104-
a = md5_ii(a, b, c, d, x[i+ 4], 6 , -145523070);
105-
d = md5_ii(d, a, b, c, x[i+11], 10, -1120210379);
106-
c = md5_ii(c, d, a, b, x[i+ 2], 15, 718787259);
107-
b = md5_ii(b, c, d, a, x[i+ 9], 21, -343485551);
108-
109-
a = safe_add(a, olda);
110-
b = safe_add(b, oldb);
111-
c = safe_add(c, oldc);
112-
d = safe_add(d, oldd);
113-
}
114-
return Array(a, b, c, d);
115-
116-
}
117-
118-
/*
119-
* These functions implement the four basic operations the algorithm uses.
120-
*/
121-
function md5_cmn(q, a, b, x, s, t)
122-
{
123-
return safe_add(bit_rol(safe_add(safe_add(a, q), safe_add(x, t)), s),b);
124-
}
125-
function md5_ff(a, b, c, d, x, s, t)
126-
{
127-
return md5_cmn((b & c) | ((~b) & d), a, b, x, s, t);
128-
}
129-
function md5_gg(a, b, c, d, x, s, t)
130-
{
131-
return md5_cmn((b & d) | (c & (~d)), a, b, x, s, t);
132-
}
133-
function md5_hh(a, b, c, d, x, s, t)
134-
{
135-
return md5_cmn(b ^ c ^ d, a, b, x, s, t);
136-
}
137-
function md5_ii(a, b, c, d, x, s, t)
138-
{
139-
return md5_cmn(c ^ (b | (~d)), a, b, x, s, t);
140-
}
141-
142-
/*
143-
* Add integers, wrapping at 2^32. This uses 16-bit operations internally
144-
* to work around bugs in some JS interpreters.
145-
*/
146-
function safe_add(x, y)
147-
{
148-
var lsw = (x & 0xFFFF) + (y & 0xFFFF);
149-
var msw = (x >> 16) + (y >> 16) + (lsw >> 16);
150-
return (msw << 16) | (lsw & 0xFFFF);
151-
}
152-
153-
/*
154-
* Bitwise rotate a 32-bit number to the left.
155-
*/
156-
function bit_rol(num, cnt)
157-
{
158-
return (num << cnt) | (num >>> (32 - cnt));
159-
}
160-
161-
module.exports = function md5(buf) {
162-
return helpers.hash(buf, core_md5, 16);
163-
};
1+
/*
2+
* A JavaScript implementation of the RSA Data Security, Inc. MD5 Message
3+
* Digest Algorithm, as defined in RFC 1321.
4+
* Version 2.1 Copyright (C) Paul Johnston 1999 - 2002.
5+
* Other contributors: Greg Holt, Andrew Kepert, Ydnar, Lostinet
6+
* Distributed under the BSD License
7+
* See http://pajhome.org.uk/crypt/md5 for more info.
8+
*/
9+
10+
var helpers = require('./helpers');
11+
12+
/*
13+
* Perform a simple self-test to see if the VM is working
14+
*/
15+
function md5_vm_test()
16+
{
17+
return hex_md5("abc") == "900150983cd24fb0d6963f7d28e17f72";
18+
}
19+
20+
/*
21+
* Calculate the MD5 of an array of little-endian words, and a bit length
22+
*/
23+
function core_md5(x, len)
24+
{
25+
/* append padding */
26+
x[len >> 5] |= 0x80 << ((len) % 32);
27+
x[(((len + 64) >>> 9) << 4) + 14] = len;
28+
29+
var a = 1732584193;
30+
var b = -271733879;
31+
var c = -1732584194;
32+
var d = 271733878;
33+
34+
for(var i = 0; i < x.length; i += 16)
35+
{
36+
var olda = a;
37+
var oldb = b;
38+
var oldc = c;
39+
var oldd = d;
40+
41+
a = md5_ff(a, b, c, d, x[i+ 0], 7 , -680876936);
42+
d = md5_ff(d, a, b, c, x[i+ 1], 12, -389564586);
43+
c = md5_ff(c, d, a, b, x[i+ 2], 17, 606105819);
44+
b = md5_ff(b, c, d, a, x[i+ 3], 22, -1044525330);
45+
a = md5_ff(a, b, c, d, x[i+ 4], 7 , -176418897);
46+
d = md5_ff(d, a, b, c, x[i+ 5], 12, 1200080426);
47+
c = md5_ff(c, d, a, b, x[i+ 6], 17, -1473231341);
48+
b = md5_ff(b, c, d, a, x[i+ 7], 22, -45705983);
49+
a = md5_ff(a, b, c, d, x[i+ 8], 7 , 1770035416);
50+
d = md5_ff(d, a, b, c, x[i+ 9], 12, -1958414417);
51+
c = md5_ff(c, d, a, b, x[i+10], 17, -42063);
52+
b = md5_ff(b, c, d, a, x[i+11], 22, -1990404162);
53+
a = md5_ff(a, b, c, d, x[i+12], 7 , 1804603682);
54+
d = md5_ff(d, a, b, c, x[i+13], 12, -40341101);
55+
c = md5_ff(c, d, a, b, x[i+14], 17, -1502002290);
56+
b = md5_ff(b, c, d, a, x[i+15], 22, 1236535329);
57+
58+
a = md5_gg(a, b, c, d, x[i+ 1], 5 , -165796510);
59+
d = md5_gg(d, a, b, c, x[i+ 6], 9 , -1069501632);
60+
c = md5_gg(c, d, a, b, x[i+11], 14, 643717713);
61+
b = md5_gg(b, c, d, a, x[i+ 0], 20, -373897302);
62+
a = md5_gg(a, b, c, d, x[i+ 5], 5 , -701558691);
63+
d = md5_gg(d, a, b, c, x[i+10], 9 , 38016083);
64+
c = md5_gg(c, d, a, b, x[i+15], 14, -660478335);
65+
b = md5_gg(b, c, d, a, x[i+ 4], 20, -405537848);
66+
a = md5_gg(a, b, c, d, x[i+ 9], 5 , 568446438);
67+
d = md5_gg(d, a, b, c, x[i+14], 9 , -1019803690);
68+
c = md5_gg(c, d, a, b, x[i+ 3], 14, -187363961);
69+
b = md5_gg(b, c, d, a, x[i+ 8], 20, 1163531501);
70+
a = md5_gg(a, b, c, d, x[i+13], 5 , -1444681467);
71+
d = md5_gg(d, a, b, c, x[i+ 2], 9 , -51403784);
72+
c = md5_gg(c, d, a, b, x[i+ 7], 14, 1735328473);
73+
b = md5_gg(b, c, d, a, x[i+12], 20, -1926607734);
74+
75+
a = md5_hh(a, b, c, d, x[i+ 5], 4 , -378558);
76+
d = md5_hh(d, a, b, c, x[i+ 8], 11, -2022574463);
77+
c = md5_hh(c, d, a, b, x[i+11], 16, 1839030562);
78+
b = md5_hh(b, c, d, a, x[i+14], 23, -35309556);
79+
a = md5_hh(a, b, c, d, x[i+ 1], 4 , -1530992060);
80+
d = md5_hh(d, a, b, c, x[i+ 4], 11, 1272893353);
81+
c = md5_hh(c, d, a, b, x[i+ 7], 16, -155497632);
82+
b = md5_hh(b, c, d, a, x[i+10], 23, -1094730640);
83+
a = md5_hh(a, b, c, d, x[i+13], 4 , 681279174);
84+
d = md5_hh(d, a, b, c, x[i+ 0], 11, -358537222);
85+
c = md5_hh(c, d, a, b, x[i+ 3], 16, -722521979);
86+
b = md5_hh(b, c, d, a, x[i+ 6], 23, 76029189);
87+
a = md5_hh(a, b, c, d, x[i+ 9], 4 , -640364487);
88+
d = md5_hh(d, a, b, c, x[i+12], 11, -421815835);
89+
c = md5_hh(c, d, a, b, x[i+15], 16, 530742520);
90+
b = md5_hh(b, c, d, a, x[i+ 2], 23, -995338651);
91+
92+
a = md5_ii(a, b, c, d, x[i+ 0], 6 , -198630844);
93+
d = md5_ii(d, a, b, c, x[i+ 7], 10, 1126891415);
94+
c = md5_ii(c, d, a, b, x[i+14], 15, -1416354905);
95+
b = md5_ii(b, c, d, a, x[i+ 5], 21, -57434055);
96+
a = md5_ii(a, b, c, d, x[i+12], 6 , 1700485571);
97+
d = md5_ii(d, a, b, c, x[i+ 3], 10, -1894986606);
98+
c = md5_ii(c, d, a, b, x[i+10], 15, -1051523);
99+
b = md5_ii(b, c, d, a, x[i+ 1], 21, -2054922799);
100+
a = md5_ii(a, b, c, d, x[i+ 8], 6 , 1873313359);
101+
d = md5_ii(d, a, b, c, x[i+15], 10, -30611744);
102+
c = md5_ii(c, d, a, b, x[i+ 6], 15, -1560198380);
103+
b = md5_ii(b, c, d, a, x[i+13], 21, 1309151649);
104+
a = md5_ii(a, b, c, d, x[i+ 4], 6 , -145523070);
105+
d = md5_ii(d, a, b, c, x[i+11], 10, -1120210379);
106+
c = md5_ii(c, d, a, b, x[i+ 2], 15, 718787259);
107+
b = md5_ii(b, c, d, a, x[i+ 9], 21, -343485551);
108+
109+
a = safe_add(a, olda);
110+
b = safe_add(b, oldb);
111+
c = safe_add(c, oldc);
112+
d = safe_add(d, oldd);
113+
}
114+
return Array(a, b, c, d);
115+
116+
}
117+
118+
/*
119+
* These functions implement the four basic operations the algorithm uses.
120+
*/
121+
function md5_cmn(q, a, b, x, s, t)
122+
{
123+
return safe_add(bit_rol(safe_add(safe_add(a, q), safe_add(x, t)), s),b);
124+
}
125+
function md5_ff(a, b, c, d, x, s, t)
126+
{
127+
return md5_cmn((b & c) | ((~b) & d), a, b, x, s, t);
128+
}
129+
function md5_gg(a, b, c, d, x, s, t)
130+
{
131+
return md5_cmn((b & d) | (c & (~d)), a, b, x, s, t);
132+
}
133+
function md5_hh(a, b, c, d, x, s, t)
134+
{
135+
return md5_cmn(b ^ c ^ d, a, b, x, s, t);
136+
}
137+
function md5_ii(a, b, c, d, x, s, t)
138+
{
139+
return md5_cmn(c ^ (b | (~d)), a, b, x, s, t);
140+
}
141+
142+
/*
143+
* Add integers, wrapping at 2^32. This uses 16-bit operations internally
144+
* to work around bugs in some JS interpreters.
145+
*/
146+
function safe_add(x, y)
147+
{
148+
var lsw = (x & 0xFFFF) + (y & 0xFFFF);
149+
var msw = (x >> 16) + (y >> 16) + (lsw >> 16);
150+
return (msw << 16) | (lsw & 0xFFFF);
151+
}
152+
153+
/*
154+
* Bitwise rotate a 32-bit number to the left.
155+
*/
156+
function bit_rol(num, cnt)
157+
{
158+
return (num << cnt) | (num >>> (32 - cnt));
159+
}
160+
161+
module.exports = function md5(buf) {
162+
return helpers.hash(buf, core_md5, 16);
163+
};

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