--- a/includes/diffiehellman.php Sun Mar 28 21:49:26 2010 -0400
+++ b/includes/diffiehellman.php Sun Mar 28 23:10:46 2010 -0400
@@ -20,11 +20,11 @@
$dh_supported = true;
try
{
- $GLOBALS['_math'] = enanomath_create();
+ $GLOBALS['_math'] = enanomath_create();
}
catch ( Exception $e )
{
- $dh_supported = false;
+ $dh_supported = false;
}
// Our prime number as a base for operations.
$GLOBALS['dh_prime'] = '7916586051748534588306961133067968196965257961415756656521818848750723547477673457670019632882524164647651492025728980571833579341743988603191694784406703';
@@ -40,8 +40,8 @@
function dh_gen_private()
{
- global $_math;
- return $_math->random(256);
+ global $_math;
+ return $_math->random(256);
}
/**
@@ -52,8 +52,8 @@
function dh_gen_public($b)
{
- global $_math, $dh_g, $dh_prime;
- return $_math->powmod($dh_g, $b, $dh_prime);
+ global $_math, $dh_g, $dh_prime;
+ return $_math->powmod($dh_g, $b, $dh_prime);
}
/**
@@ -65,8 +65,8 @@
function dh_gen_shared_secret($a, $B)
{
- global $_math, $dh_g, $dh_prime;
- return $_math->powmod($B, $a, $dh_prime);
+ global $_math, $dh_g, $dh_prime;
+ return $_math->powmod($B, $a, $dh_prime);
}
/*
@@ -80,13 +80,13 @@
are permitted provided that the following conditions are met:
* Redistributions of source code must retain the above copyright notice, this
- list of conditions and the following disclaimer.
+ list of conditions and the following disclaimer.
* Redistributions in binary form must reproduce the above copyright notice,
- this list of conditions and the following disclaimer in the documentation
- and/or other materials provided with the distribution.
+ this list of conditions and the following disclaimer in the documentation
+ and/or other materials provided with the distribution.
* Neither the name of the <ORGANIZATION> nor the names of its contributors may
- be used to endorse or promote products derived from this software without
- specific prior written permission.
+ be used to endorse or promote products derived from this software without
+ specific prior written permission.
THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
@@ -101,165 +101,165 @@
*/
class SHA256
{
- var $chrsz = 8; /* bits per input character. 8 - ASCII; 16 - Unicode */
-
- function safe_add ($x, $y) {
- $lsw = ($x & 0xFFFF) + ($y & 0xFFFF);
- $msw = ($x >> 16) + ($y >> 16) + ($lsw >> 16);
- // 2009-07-02 Added & 0xFFFFFFFF here to fix problem on PHP w/ native 64-bit integer support (rev. 1030)
- return (($msw << 16) | ($lsw & 0xFFFF)) & 0xFFFFFFFF;
- }
- function rshz($X, $n)
- {
- // equivalent to $X >>> $n in javascript
- // pulled from http://www.tapouillo.com/firefox_extension/sourcecode.txt, public domain
- $z = hexdec(80000000);
- if ($z & $X)
- {
- $X = ($X>>1);
- $X &= (~$z);
- $X |= 0x40000000;
- $X = ($X>>($n-1));
- }
- else
- {
- $X = ($X>>$n);
- }
- return $X;
- }
- function S ($X, $n) {return ( $this->rshz($X, $n) ) | ($X << (32 - $n));}
- function R ($X, $n) {return ( $this->rshz($X, $n) );}
- function Ch($x, $y, $z) {return (($x & $y) ^ ((~$x) & $z));}
- function Maj($x, $y, $z) {return (($x & $y) ^ ($x & $z) ^ ($y & $z));}
- function Sigma0256($x) {return ($this->S($x, 2) ^ $this->S($x, 13) ^ $this->S($x, 22));}
- function Sigma1256($x) {return ($this->S($x, 6) ^ $this->S($x, 11) ^ $this->S($x, 25));}
- function Gamma0256($x) {return ($this->S($x, 7) ^ $this->S($x, 18) ^ $this->R($x, 3));}
- function Gamma1256($x) {return ($this->S($x, 17) ^ $this->S($x, 19) ^ $this->R($x, 10));}
- function core_sha256 ($m, $l) {
- $K = Array(0x428A2F98,0x71374491,0xB5C0FBCF,0xE9B5DBA5,0x3956C25B,0x59F111F1,0x923F82A4,0xAB1C5ED5,0xD807AA98,0x12835B01,0x243185BE,0x550C7DC3,0x72BE5D74,0x80DEB1FE,0x9BDC06A7,0xC19BF174,0xE49B69C1,0xEFBE4786,0xFC19DC6,0x240CA1CC,0x2DE92C6F,0x4A7484AA,0x5CB0A9DC,0x76F988DA,0x983E5152,0xA831C66D,0xB00327C8,0xBF597FC7,0xC6E00BF3,0xD5A79147,0x6CA6351,0x14292967,0x27B70A85,0x2E1B2138,0x4D2C6DFC,0x53380D13,0x650A7354,0x766A0ABB,0x81C2C92E,0x92722C85,0xA2BFE8A1,0xA81A664B,0xC24B8B70,0xC76C51A3,0xD192E819,0xD6990624,0xF40E3585,0x106AA070,0x19A4C116,0x1E376C08,0x2748774C,0x34B0BCB5,0x391C0CB3,0x4ED8AA4A,0x5B9CCA4F,0x682E6FF3,0x748F82EE,0x78A5636F,0x84C87814,0x8CC70208,0x90BEFFFA,0xA4506CEB,0xBEF9A3F7,0xC67178F2);
- $HASH = Array(0x6A09E667, 0xBB67AE85, 0x3C6EF372, 0xA54FF53A, 0x510E527F, 0x9B05688C, 0x1F83D9AB, 0x5BE0CD19);
- $W = Array(64);
- /* append padding */
- if ( !isset($m[$l >> 5]) )
- $m[$l >> 5] = 0;
- $m[$l >> 5] |= 0x80 << (24 - $l % 32);
- $m[(($l + 64 >> 9) << 4) + 15] = $l;
- for ( $i = 0; $i<count($m); $i+=16 ) {
- $a = $HASH[0];
- $b = $HASH[1];
- $c = $HASH[2];
- $d = $HASH[3];
- $e = $HASH[4];
- $f = $HASH[5];
- $g = $HASH[6];
- $h = $HASH[7];
- for ( $j = 0; $j<64; $j++)
- {
- if ( $j < 16 )
- {
- $W[$j] = ( isset($m[$j + $i]) ) ? $m[$j + $i] : 0;
- }
- else
- {
- $W[$j] = $this->safe_add(
- $this->safe_add(
- $this->safe_add(
- $this->Gamma1256($W[$j - 2]), $W[$j - 7]),
- $this->Gamma0256($W[$j - 15])),
- $W[$j - 16]);
- }
- $T1 = $this->safe_add(
- $this->safe_add(
- $this->safe_add(
- $this->safe_add($h, $this->Sigma1256($e)
- ),
- $this->Ch($e, $f, $g)),
- $K[$j]),
- $W[$j]);
- $T2 = $this->safe_add($this->Sigma0256($a), $this->Maj($a, $b, $c));
- $h = $g;
- $g = $f;
- $f = $e;
- $e = $this->safe_add($d, $T1);
- $d = $c;
- $c = $b;
- $b = $a;
- $a = $this->safe_add($T1, $T2);
- }
- $HASH[0] = $this->safe_add($a, $HASH[0]);
- $HASH[1] = $this->safe_add($b, $HASH[1]);
- $HASH[2] = $this->safe_add($c, $HASH[2]);
- $HASH[3] = $this->safe_add($d, $HASH[3]);
- $HASH[4] = $this->safe_add($e, $HASH[4]);
- $HASH[5] = $this->safe_add($f, $HASH[5]);
- $HASH[6] = $this->safe_add($g, $HASH[6]);
- $HASH[7] = $this->safe_add($h, $HASH[7]);
- }
- return $HASH;
- }
- function str2binb ($str) {
- $bin = Array();
- for ( $i = 0; $i < strlen($str); $i++ )
- {
- $byte = ord($str{$i});
- $block = floor($i / 4);
- $stage = $i % 4;
- if ( $stage == 0 )
- {
- $bin[$block] = $byte;
- }
- else
- {
- $bin[$block] <<= 8;
- $bin[$block] |= $byte;
- }
- }
- while ( $stage < 3 )
- {
- $stage++;
- $bin[$block] <<= 8;
- }
- return $bin;
- }
- function byte2hex($byte)
- {
- $b = dechex(ord($byte));
- return ( strlen($b) < 2 ) ? "0$b" : $b;
- }
- function binb2hex ($binarray) {
- $hexcase = 0; /* hex output format. 0 - lowercase; 1 - uppercase */
- $hex_tab = $hexcase ? "0123456789ABCDEF" : "0123456789abcdef";
- $str = "";
- foreach ( $binarray as $bytes )
- {
- $str .= implode('', array(
- $this->byte2hex(chr(( $bytes >> 24 ) & 0xFF)),
- $this->byte2hex(chr(( $bytes >> 16 ) & 0xFF)),
- $this->byte2hex(chr(( $bytes >> 8 ) & 0xFF)),
- $this->byte2hex(chr($bytes & 0xFF))
- ));
- }
- return $str;
- }
- function hex_sha256 ( $s )
- {
- return $this->binb2hex(
- $this->core_sha256(
- $this->str2binb($s),
- strlen($s) * $this->chrsz)
- );
- }
+ var $chrsz = 8; /* bits per input character. 8 - ASCII; 16 - Unicode */
+
+ function safe_add ($x, $y) {
+ $lsw = ($x & 0xFFFF) + ($y & 0xFFFF);
+ $msw = ($x >> 16) + ($y >> 16) + ($lsw >> 16);
+ // 2009-07-02 Added & 0xFFFFFFFF here to fix problem on PHP w/ native 64-bit integer support (rev. 1030)
+ return (($msw << 16) | ($lsw & 0xFFFF)) & 0xFFFFFFFF;
+ }
+ function rshz($X, $n)
+ {
+ // equivalent to $X >>> $n in javascript
+ // pulled from http://www.tapouillo.com/firefox_extension/sourcecode.txt, public domain
+ $z = hexdec(80000000);
+ if ($z & $X)
+ {
+ $X = ($X>>1);
+ $X &= (~$z);
+ $X |= 0x40000000;
+ $X = ($X>>($n-1));
+ }
+ else
+ {
+ $X = ($X>>$n);
+ }
+ return $X;
+ }
+ function S ($X, $n) {return ( $this->rshz($X, $n) ) | ($X << (32 - $n));}
+ function R ($X, $n) {return ( $this->rshz($X, $n) );}
+ function Ch($x, $y, $z) {return (($x & $y) ^ ((~$x) & $z));}
+ function Maj($x, $y, $z) {return (($x & $y) ^ ($x & $z) ^ ($y & $z));}
+ function Sigma0256($x) {return ($this->S($x, 2) ^ $this->S($x, 13) ^ $this->S($x, 22));}
+ function Sigma1256($x) {return ($this->S($x, 6) ^ $this->S($x, 11) ^ $this->S($x, 25));}
+ function Gamma0256($x) {return ($this->S($x, 7) ^ $this->S($x, 18) ^ $this->R($x, 3));}
+ function Gamma1256($x) {return ($this->S($x, 17) ^ $this->S($x, 19) ^ $this->R($x, 10));}
+ function core_sha256 ($m, $l) {
+ $K = Array(0x428A2F98,0x71374491,0xB5C0FBCF,0xE9B5DBA5,0x3956C25B,0x59F111F1,0x923F82A4,0xAB1C5ED5,0xD807AA98,0x12835B01,0x243185BE,0x550C7DC3,0x72BE5D74,0x80DEB1FE,0x9BDC06A7,0xC19BF174,0xE49B69C1,0xEFBE4786,0xFC19DC6,0x240CA1CC,0x2DE92C6F,0x4A7484AA,0x5CB0A9DC,0x76F988DA,0x983E5152,0xA831C66D,0xB00327C8,0xBF597FC7,0xC6E00BF3,0xD5A79147,0x6CA6351,0x14292967,0x27B70A85,0x2E1B2138,0x4D2C6DFC,0x53380D13,0x650A7354,0x766A0ABB,0x81C2C92E,0x92722C85,0xA2BFE8A1,0xA81A664B,0xC24B8B70,0xC76C51A3,0xD192E819,0xD6990624,0xF40E3585,0x106AA070,0x19A4C116,0x1E376C08,0x2748774C,0x34B0BCB5,0x391C0CB3,0x4ED8AA4A,0x5B9CCA4F,0x682E6FF3,0x748F82EE,0x78A5636F,0x84C87814,0x8CC70208,0x90BEFFFA,0xA4506CEB,0xBEF9A3F7,0xC67178F2);
+ $HASH = Array(0x6A09E667, 0xBB67AE85, 0x3C6EF372, 0xA54FF53A, 0x510E527F, 0x9B05688C, 0x1F83D9AB, 0x5BE0CD19);
+ $W = Array(64);
+ /* append padding */
+ if ( !isset($m[$l >> 5]) )
+ $m[$l >> 5] = 0;
+ $m[$l >> 5] |= 0x80 << (24 - $l % 32);
+ $m[(($l + 64 >> 9) << 4) + 15] = $l;
+ for ( $i = 0; $i<count($m); $i+=16 ) {
+ $a = $HASH[0];
+ $b = $HASH[1];
+ $c = $HASH[2];
+ $d = $HASH[3];
+ $e = $HASH[4];
+ $f = $HASH[5];
+ $g = $HASH[6];
+ $h = $HASH[7];
+ for ( $j = 0; $j<64; $j++)
+ {
+ if ( $j < 16 )
+ {
+ $W[$j] = ( isset($m[$j + $i]) ) ? $m[$j + $i] : 0;
+ }
+ else
+ {
+ $W[$j] = $this->safe_add(
+ $this->safe_add(
+ $this->safe_add(
+ $this->Gamma1256($W[$j - 2]), $W[$j - 7]),
+ $this->Gamma0256($W[$j - 15])),
+ $W[$j - 16]);
+ }
+ $T1 = $this->safe_add(
+ $this->safe_add(
+ $this->safe_add(
+ $this->safe_add($h, $this->Sigma1256($e)
+ ),
+ $this->Ch($e, $f, $g)),
+ $K[$j]),
+ $W[$j]);
+ $T2 = $this->safe_add($this->Sigma0256($a), $this->Maj($a, $b, $c));
+ $h = $g;
+ $g = $f;
+ $f = $e;
+ $e = $this->safe_add($d, $T1);
+ $d = $c;
+ $c = $b;
+ $b = $a;
+ $a = $this->safe_add($T1, $T2);
+ }
+ $HASH[0] = $this->safe_add($a, $HASH[0]);
+ $HASH[1] = $this->safe_add($b, $HASH[1]);
+ $HASH[2] = $this->safe_add($c, $HASH[2]);
+ $HASH[3] = $this->safe_add($d, $HASH[3]);
+ $HASH[4] = $this->safe_add($e, $HASH[4]);
+ $HASH[5] = $this->safe_add($f, $HASH[5]);
+ $HASH[6] = $this->safe_add($g, $HASH[6]);
+ $HASH[7] = $this->safe_add($h, $HASH[7]);
+ }
+ return $HASH;
+ }
+ function str2binb ($str) {
+ $bin = Array();
+ for ( $i = 0; $i < strlen($str); $i++ )
+ {
+ $byte = ord($str{$i});
+ $block = floor($i / 4);
+ $stage = $i % 4;
+ if ( $stage == 0 )
+ {
+ $bin[$block] = $byte;
+ }
+ else
+ {
+ $bin[$block] <<= 8;
+ $bin[$block] |= $byte;
+ }
+ }
+ while ( $stage < 3 )
+ {
+ $stage++;
+ $bin[$block] <<= 8;
+ }
+ return $bin;
+ }
+ function byte2hex($byte)
+ {
+ $b = dechex(ord($byte));
+ return ( strlen($b) < 2 ) ? "0$b" : $b;
+ }
+ function binb2hex ($binarray) {
+ $hexcase = 0; /* hex output format. 0 - lowercase; 1 - uppercase */
+ $hex_tab = $hexcase ? "0123456789ABCDEF" : "0123456789abcdef";
+ $str = "";
+ foreach ( $binarray as $bytes )
+ {
+ $str .= implode('', array(
+ $this->byte2hex(chr(( $bytes >> 24 ) & 0xFF)),
+ $this->byte2hex(chr(( $bytes >> 16 ) & 0xFF)),
+ $this->byte2hex(chr(( $bytes >> 8 ) & 0xFF)),
+ $this->byte2hex(chr($bytes & 0xFF))
+ ));
+ }
+ return $str;
+ }
+ function hex_sha256 ( $s )
+ {
+ return $this->binb2hex(
+ $this->core_sha256(
+ $this->str2binb($s),
+ strlen($s) * $this->chrsz)
+ );
+ }
}
if ( !function_exists('sha256') )
{
- function sha256($text)
- {
- static $sha_obj = false;
- if ( !is_object($sha_obj) )
- $sha_obj = new SHA256();
- return $sha_obj->hex_sha256($text);
- }
+ function sha256($text)
+ {
+ static $sha_obj = false;
+ if ( !is_object($sha_obj) )
+ $sha_obj = new SHA256();
+ return $sha_obj->hex_sha256($text);
+ }
}
?>