author | Dan |
Thu, 06 Mar 2008 23:39:23 -0500 | |
changeset 487 | 545f20141cf9 |
parent 436 | 242353360e37 |
permissions | -rw-r--r-- |
436
242353360e37
Added support for Diffie-Hellman key exchange during login. w00t!
Dan
parents:
diff
changeset
|
1 |
/* |
242353360e37
Added support for Diffie-Hellman key exchange during login. w00t!
Dan
parents:
diff
changeset
|
2 |
* EnanoMath, an abstraction layer for big-integer (arbitrary precision) |
242353360e37
Added support for Diffie-Hellman key exchange during login. w00t!
Dan
parents:
diff
changeset
|
3 |
* mathematics. |
242353360e37
Added support for Diffie-Hellman key exchange during login. w00t!
Dan
parents:
diff
changeset
|
4 |
*/ |
242353360e37
Added support for Diffie-Hellman key exchange during login. w00t!
Dan
parents:
diff
changeset
|
5 |
|
242353360e37
Added support for Diffie-Hellman key exchange during login. w00t!
Dan
parents:
diff
changeset
|
6 |
var EnanoMathLayers = {}; |
242353360e37
Added support for Diffie-Hellman key exchange during login. w00t!
Dan
parents:
diff
changeset
|
7 |
|
242353360e37
Added support for Diffie-Hellman key exchange during login. w00t!
Dan
parents:
diff
changeset
|
8 |
// EnanoMath layer: Leemon (frontend to BigInt library by Leemon Baird) |
242353360e37
Added support for Diffie-Hellman key exchange during login. w00t!
Dan
parents:
diff
changeset
|
9 |
|
242353360e37
Added support for Diffie-Hellman key exchange during login. w00t!
Dan
parents:
diff
changeset
|
10 |
EnanoMathLayers.Leemon = { |
242353360e37
Added support for Diffie-Hellman key exchange during login. w00t!
Dan
parents:
diff
changeset
|
11 |
Base: 10, |
242353360e37
Added support for Diffie-Hellman key exchange during login. w00t!
Dan
parents:
diff
changeset
|
12 |
PowMod: function(a, b, c) |
242353360e37
Added support for Diffie-Hellman key exchange during login. w00t!
Dan
parents:
diff
changeset
|
13 |
{ |
242353360e37
Added support for Diffie-Hellman key exchange during login. w00t!
Dan
parents:
diff
changeset
|
14 |
a = str2bigInt(a, this.Base); |
242353360e37
Added support for Diffie-Hellman key exchange during login. w00t!
Dan
parents:
diff
changeset
|
15 |
b = str2bigInt(b, this.Base); |
242353360e37
Added support for Diffie-Hellman key exchange during login. w00t!
Dan
parents:
diff
changeset
|
16 |
c = str2bigInt(c, this.Base); |
242353360e37
Added support for Diffie-Hellman key exchange during login. w00t!
Dan
parents:
diff
changeset
|
17 |
var result = powMod(a, b, c); |
242353360e37
Added support for Diffie-Hellman key exchange during login. w00t!
Dan
parents:
diff
changeset
|
18 |
result = bigInt2str(result, this.Base); |
242353360e37
Added support for Diffie-Hellman key exchange during login. w00t!
Dan
parents:
diff
changeset
|
19 |
return result; |
242353360e37
Added support for Diffie-Hellman key exchange during login. w00t!
Dan
parents:
diff
changeset
|
20 |
}, |
242353360e37
Added support for Diffie-Hellman key exchange during login. w00t!
Dan
parents:
diff
changeset
|
21 |
RandomInt: function(bits) |
242353360e37
Added support for Diffie-Hellman key exchange during login. w00t!
Dan
parents:
diff
changeset
|
22 |
{ |
242353360e37
Added support for Diffie-Hellman key exchange during login. w00t!
Dan
parents:
diff
changeset
|
23 |
var result = randBigInt(bits); |
242353360e37
Added support for Diffie-Hellman key exchange during login. w00t!
Dan
parents:
diff
changeset
|
24 |
return bigInt2str(result, this.Base); |
242353360e37
Added support for Diffie-Hellman key exchange during login. w00t!
Dan
parents:
diff
changeset
|
25 |
} |
242353360e37
Added support for Diffie-Hellman key exchange during login. w00t!
Dan
parents:
diff
changeset
|
26 |
} |
242353360e37
Added support for Diffie-Hellman key exchange during login. w00t!
Dan
parents:
diff
changeset
|
27 |
|
242353360e37
Added support for Diffie-Hellman key exchange during login. w00t!
Dan
parents:
diff
changeset
|
28 |
var EnanoMath = EnanoMathLayers.Leemon; |
242353360e37
Added support for Diffie-Hellman key exchange during login. w00t!
Dan
parents:
diff
changeset
|
29 |