1 // regression test for Bug 452008 - TM: SRP in Clipperz crypto library fails when JIT (TraceMonkey) is enabled.
3 var x = [9385, 32112, 25383, 16317, 30138, 14565, 17812, 24500, 2719, 30174, 3546, 9096, 15352, 19120, 20648, 14334, 7426, 0, 0, 0];
4 var n = [27875, 25925, 30422, 12227, 27798, 32170, 10873, 21748, 30629, 26296, 20697, 5125, 4815, 2221, 14392, 23369, 5560, 2, 0, 0];
6 var expected = [18770, 31456, 17999, 32635, 27508, 29131, 2856, 16233, 5439, 27580, 7093, 18192, 30804, 5472, 8529, 28649, 14852, 0, 0, 0];
9 bpe=0; //bits stored per array element
10 mask=0; //AND this with an array element to chop it down to bpe bits
12 //initialize the global variables
13 for (bpe=0; (1<<(bpe+1)) > (1<<bpe); bpe++); //bpe=number of bits in the mantissa on this platform
14 bpe>>=1; //bpe=number of bits in one element of the array representing the bigInt
15 mask=(1<<bpe)-1; //AND the mask with an integer to get its bpe least significant bits
18 //the following global variables are scratchpad memory to
19 //reduce dynamic memory allocation in the inner loop
20 sa = new Array(0); //used in mont_()
22 //do x=y on bigInts x and y. x must be an array at least as big as y (not counting the leading zeros in y).
25 var k=x.length<y.length ? x.length : y.length;
28 for (i=k;i<x.length;i++)
32 //do x=y on bigInt x and integer y.
33 function copyInt_(x,n) {
35 for (c=n,i=0;i<x.length;i++) {
41 //is x > y? (x and y both nonnegative)
42 function greater(x,y) {
44 var k=(x.length<y.length) ? x.length : y.length;
46 for (i=x.length;i<y.length;i++)
48 return 0; //y has more digits
50 for (i=y.length;i<x.length;i++)
52 return 1; //x has more digits
63 //do x=x*y*Ri mod n for bigInts x,y,n,
64 // where Ri = 2**(-kn*bpe) mod n, and kn is the
65 // number of elements in the n array, not
66 // counting leading zeros.
67 //x must be large enough to hold the answer.
68 //It's OK if x and y are the same variable.
72 // np = -(n^(-1)) mod radix
73 function mont_(x,y,n,np) {
81 for (;kn>0 && n[kn-1]==0;kn--); //ignore leading zeros of n
82 for (;ky>0 && y[ky-1]==0;ky--); //ignore leading zeros of y
86 //the following loop consumes 95% of the runtime for randTruePrime_() and powMod_() for large keys
87 for (i=0; i<kn; i++) {
89 ui=((t & mask) * np) & mask; //the inner "& mask" is needed on Macintosh MSIE, but not windows MSIE
93 //do sa=(sa+x[i]*y+ui*n)/b where b=2**bpe
95 c+=sa[j]+t*y[j]+ui*n[j];
114 var passed = expected.length == x.length;
115 for (var i = 0; i < expected.length; i++) {
117 passed = expected[i] == x[i];
119 assertEq(passed, true);