}
function gg(a,b,c,d,x,s,ac) {
a = a+g(b, c, d) +x + ac;
a = rotateleft(a, s);
a = a+b;
return a;
}
function hh(a,b,c,d,x,s,ac) {
a = a+h(b, c, d) + x + ac;
a = rotateleft(a, s);
a = a+b;
return a;
}
function ii(a,b,c,d,x,s,ac) {
a = a+i(b, c, d) + x + ac;
a = rotateleft(a, s);
a = a+b;
return a;
}
function transform(buf,offset) {
var a=0, b=0, c=0, d=0;
var x = transformbuffer;
a = state[0];
b = state[1];
c = state[2];
d = state[3];
for (i = 0; i < 16; i++) {
x[i] = and(buf[i*4+offset],0xff);
for (j = 1; j < 4; j++) {
x[i]+=shl(and(buf[i*4+j+offset] ,0xff), j * 8);
}
}
/* round 1 */
a = ff ( a, b, c, d, x[ 0], s11, 0xd76aa478); /* 1 */
d = ff ( d, a, b, c, x[ 1], s12, 0xe8c7b756); /* 2 */
c = ff ( c, d, a, b, x[ 2], s13, 0x242070db); /* 3 */
b = ff ( b, c, d, a, x[ 3], s14, 0xc1bdceee); /* 4 */
a = ff ( a, b, c, d, x[ 4], s11, 0xf57c0faf); /* 5 */
d = ff ( d, a, b, c, x[ 5], s12, 0x4787c62a); /* 6 */
c = ff ( c, d, a, b, x[ 6], s13, 0xa8304613); /* 7 */
b = ff ( b, c, d, a, x[ 7], s14, 0xfd469501); /* 8 */
a = ff ( a, b, c, d, x[ 8], s11, 0x698098d8); /* 9 */
d = ff ( d, a, b, c, x[ 9], s12, 0x8b44f7af); /* 10 */
c = ff ( c, d, a, b, x[10], s13, 0xffff5bb1); /* 11 */
b = ff ( b, c, d, a, x[11], s14, 0x895cd7be); /* 12 */
a = ff ( a, b, c, d, x[12], s11, 0x6b901122); /* 13 */
d = ff ( d, a, b, c, x[13], s12, 0xfd987193); /* 14 */
c = ff ( c, d, a, b, x[14], s13, 0xa679438e); /* 15 */
b = ff ( b, c, d, a, x[15], s14, 0x49b40821); /* 16 */
/* round 2 */
a = gg ( a, b, c, d, x[ 1], s21, 0xf61e2562); /* 17 */
d = gg ( d, a, b, c, x[ 6], s22, 0xc040b340); /* 18 */
c = gg ( c, d, a, b, x[11], s23, 0x265e5a51); /* 19 */
b = gg ( b, c, d, a, x[ 0], s24, 0xe9b6c7aa); /* 20 */
a = gg ( a, b, c, d, x[ 5], s21, 0xd62f105d); /* 21 */
d = gg ( d, a, b, c, x[10], s22, 0x2441453); /* 22 */
c = gg ( c, d, a, b, x[15], s23, 0xd8a1e681); /* 23 */
b = gg ( b, c, d, a, x[ 4], s24, 0xe7d3fbc8); /* 24 */
a = gg ( a, b, c, d, x[ 9], s21, 0x21e1cde6); /* 25 */
d = gg ( d, a, b, c, x[14], s22, 0xc33707d6); /* 26 */
c = gg ( c, d, a, b, x[ 3], s23, 0xf4d50d87); /* 27 */
b = gg ( b, c, d, a, x[ 8], s24, 0x455a14ed); /* 28 */
a = gg ( a, b, c, d, x[13], s21, 0xa9e3e905); /* 29 */
d = gg ( d, a, b, c, x[ 2], s22, 0xfcefa3f8); /* 30 */
c = gg ( c, d, a, b, x[ 7], s23, 0x676f02d9); /* 31 */
b = gg ( b, c, d, a, x[12], s24, 0x8d2a4c8a); /* 32 */
/* round 3 */
a = hh ( a, b, c, d, x[ 5], s31, 0xfffa3942); /* 33 */
d = hh ( d, a, b, c, x[ 8], s32, 0x8771f681); /* 34 */
c = hh ( c, d, a, b, x[11], s33, 0x6d9d6122); /* 35 */
b = hh ( b, c, d, a, x[14], s34, 0xfde5380c); /* 36 */
a = hh ( a, b, c, d, x[ 1], s31, 0xa4beea44); /* 37 */
d = hh ( d, a, b, c, x[ 4], s32, 0x4bdecfa9); /* 38 */
c = hh ( c, d, a, b, x[ 7], s33, 0xf6bb4b60); /* 39 */
b = hh ( b, c, d, a, x[10], s34, 0xbebfbc70); /* 40 */
a = hh ( a, b, c, d, x[13], s31, 0x289b7ec6); /* 41 */
d = hh ( d, a, b, c, x[ 0], s32, 0xeaa127fa); /* 42 */
c = hh ( c, d, a, b, x[ 3], s33, 0xd4ef3085); /* 43 */
b = hh ( b, c, d, a, x[ 6], s34, 0x4881d05); /* 44 */
a = hh ( a, b, c, d, x[ 9], s31, 0xd9d4d039); /* 45 */
d = hh ( d, a, b, c, x[12], s32, 0xe6db99e5); /* 46 */
c = hh ( c, d, a, b, x[15], s33, 0x1fa27cf8); /* 47 */
b = hh ( b, c, d, a, x[ 2], s34, 0xc4ac5665); /* 48 */
/* round 4 */
a = ii ( a, b, c, d, x[ 0], s41, 0xf4292244); /* 49 */
d = ii ( d, a, b, c, x[ 7], s42, 0x432aff97); /* 50 */
c = ii ( c, d, a, b, x[14], s43, 0xab9423a7); /* 51 */
b = ii ( b, c, d, a, x[ 5], s44, 0xfc93a039); /* 52 */
a = ii ( a, b, c, d, x[12], s41, 0x655b59c3); /* 53 */
d = ii ( d, a, b, c, x[ 3], s42, 0x8f0ccc92); /* 54 */
c = ii ( c, d, a, b, x[10], s43, 0xffeff47d); /* 55 */
b = ii ( b, c, d, a, x[ 1], s44, 0x85845dd1); /* 56 */
a = ii ( a, b, c, d, x[ 8], s41, 0x6fa87e4f); /* 57 */
d = ii ( d, a, b, c, x[15], s42, 0xfe2ce6e0); /* 58 */
c = ii ( c, d, a, b, x[ 6], s43, 0xa3014314); /* 59 */
