Enano CMS (1.1.x): comparison includes/diffiehellman.php

equal deleted inserted replaced

-:de56132c008d
+:bdac73ed481e
 global $dh_supported;
 $dh_supported = true;
 try
 {
-$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';
 // g, a primitive root used as an exponent
 * @return string(BigInt)
 */
 function dh_gen_private()
 {
-global $_math;
+	global $_math;
-return $_math->random(256);
+	return $_math->random(256);
 }
 /**
 * Calculates the public key from the private key
 * @param string(BigInt)
 * @return string(BigInt)
 */
 function dh_gen_public($b)
 {
-global $_math, $dh_g, $dh_prime;
+	global $_math, $dh_g, $dh_prime;
-return $_math->powmod($dh_g, $b, $dh_prime);
+	return $_math->powmod($dh_g, $b, $dh_prime);
 }
 /**
 * Calculates the shared secret.
 * @param string(BigInt) Our private key
 * @return string(BigInt)
 */
 function dh_gen_shared_secret($a, $B)
 {
-global $_math, $dh_g, $dh_prime;
+	global $_math, $dh_g, $dh_prime;
-return $_math->powmod($B, $a, $dh_prime);
+	return $_math->powmod($B, $a, $dh_prime);
 }
 /*
 SHA-256 algorithm - ported from Javascript
 Redistribution and use in source and binary forms, with or without modification,
 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
+	this list of conditions and the following disclaimer in the documentation
-and/or other materials provided with the distribution.
+	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
+	be used to endorse or promote products derived from this software without
-specific prior written permission.
+	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
 WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
 IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT,
 OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
 OF THE POSSIBILITY OF SUCH DAMAGE.
 */
 class SHA256
 {
-var $chrsz = 8;  /* bits per input character. 8 - ASCII; 16 - Unicode  */
+	var $chrsz = 8;  /* bits per input character. 8 - ASCII; 16 - Unicode  */
-function safe_add ($x, $y) {
+	function safe_add ($x, $y) {
-$lsw = ($x & 0xFFFF) + ($y & 0xFFFF);
+		$lsw = ($x & 0xFFFF) + ($y & 0xFFFF);
-$msw = ($x >> 16) + ($y >> 16) + ($lsw >> 16);
+		$msw = ($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)
+		// 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;
+		return (($msw << 16) | ($lsw & 0xFFFF)) & 0xFFFFFFFF;
-}
+	}
-function rshz($X, $n)
+	function rshz($X, $n)
-{
+	{
-// equivalent to $X >>> $n in javascript
+		// equivalent to $X >>> $n in javascript
-// pulled from http://www.tapouillo.com/firefox_extension/sourcecode.txt, public domain
+		// pulled from http://www.tapouillo.com/firefox_extension/sourcecode.txt, public domain
-$z = hexdec(80000000);
+		$z = hexdec(80000000);
-if ($z & $X)
+		if ($z & $X)
-{
+		{
-$X = ($X>>1);
+				$X = ($X>>1);
-$X &= (~$z);
+				$X &= (~$z);
-$X |= 0x40000000;
+				$X |= 0x40000000;
-$X = ($X>>($n-1));
+				$X = ($X>>($n-1));
-}
+		}
-else
+		else
-{
+		{
-$X = ($X>>$n);
+				$X = ($X>>$n);
-}
+		}
-return $X;
+		return $X;
-}
+	}
-function S ($X, $n) {return ( $this->rshz($X, $n) ) | ($X << (32 - $n));}
+	function S ($X, $n) {return ( $this->rshz($X, $n) ) | ($X << (32 - $n));}
-function R ($X, $n) {return ( $this->rshz($X, $n) );}
+	function R ($X, $n) {return ( $this->rshz($X, $n) );}
-function Ch($x, $y, $z)  {return (($x & $y) ^ ((~$x) & $z));}
+	function Ch($x, $y, $z)  {return (($x & $y) ^ ((~$x) & $z));}
-function Maj($x, $y, $z) {return (($x & $y) ^ ($x & $z) ^ ($y & $z));}
+	function Maj($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 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 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 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 Gamma1256($x) {return ($this->S($x, 17) ^ $this->S($x, 19) ^ $this->R($x, 10));}
-function core_sha256 ($m, $l) {
+	function core_sha256 ($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);
+			$K = Array(0x428A2F98,0x71374491,0xB5C0FBCF,0xE9B5DBA5,0x3956C25B,0x59F111F1,0x923F82A4,0xAB1C5ED5,0xD807AA98,0x12835B01,0x243185BE,0x550C7DC3,0x72BE5D74,0x80DEB1FE,0x9BDC06A7,0xC19BF174,0xE49B69C1,0xEFBE4786,0xFC19DC6,0x240CA1CC,0x2DE92C6F,0x4A7484AA,0x5CB0A9DC,0x76F988DA,0x983E5152,0xA831C66D,0xB00327C8,0xBF597FC7,0xC6E00BF3,0xD5A79147,0x6CA6351,0x14292967,0x27B70A85,0x2E1B2138,0x4D2C6DFC,0x53380D13,0x650A7354,0x766A0ABB,0x81C2C92E,0x92722C85,0xA2BFE8A1,0xA81A664B,0xC24B8B70,0xC76C51A3,0xD192E819,0xD6990624,0xF40E3585,0x106AA070,0x19A4C116,0x1E376C08,0x2748774C,0x34B0BCB5,0x391C0CB3,0x4ED8AA4A,0x5B9CCA4F,0x682E6FF3,0x748F82EE,0x78A5636F,0x84C87814,0x8CC70208,0x90BEFFFA,0xA4506CEB,0xBEF9A3F7,0xC67178F2);
-$HASH = Array(0x6A09E667, 0xBB67AE85, 0x3C6EF372, 0xA54FF53A, 0x510E527F, 0x9B05688C, 0x1F83D9AB, 0x5BE0CD19);
+			$HASH = Array(0x6A09E667, 0xBB67AE85, 0x3C6EF372, 0xA54FF53A, 0x510E527F, 0x9B05688C, 0x1F83D9AB, 0x5BE0CD19);
-$W = Array(64);
+			$W = Array(64);
-/* append padding */
+			/* append padding */
-if ( !isset($m[$l >> 5]) )
+			if ( !isset($m[$l >> 5]) )
-$m[$l >> 5] = 0;
+				$m[$l >> 5] = 0;
-$m[$l >> 5] |= 0x80 << (24 - $l % 32);
+			$m[$l >> 5] |= 0x80 << (24 - $l % 32);
-$m[(($l + 64 >> 9) << 4) + 15] = $l;
+			$m[(($l + 64 >> 9) << 4) + 15] = $l;
-for ( $i = 0; $i<count($m); $i+=16 ) {
+			for ( $i = 0; $i<count($m); $i+=16 ) {
-$a = $HASH[0];
+					$a = $HASH[0];
-$b = $HASH[1];
+					$b = $HASH[1];
-$c = $HASH[2];
+					$c = $HASH[2];
-$d = $HASH[3];
+					$d = $HASH[3];
-$e = $HASH[4];
+					$e = $HASH[4];
-$f = $HASH[5];
+					$f = $HASH[5];
-$g = $HASH[6];
+					$g = $HASH[6];
-$h = $HASH[7];
+					$h = $HASH[7];
-for ( $j = 0; $j<64; $j++)
+					for ( $j = 0; $j<64; $j++)
-{
+					{
-if ( $j < 16 )
+							if ( $j < 16 )
-{
+							{
-$W[$j] = ( isset($m[$j + $i]) ) ? $m[$j + $i] : 0;
+								$W[$j] = ( isset($m[$j + $i]) ) ? $m[$j + $i] : 0;
-}
+							}
-else
+							else
-{
+							{
-$W[$j] = $this->safe_add(
+								$W[$j] = $this->safe_add(
-$this->safe_add(
+									$this->safe_add(
-$this->safe_add(
+										$this->safe_add(
-$this->Gamma1256($W[$j - 2]), $W[$j - 7]),
+											$this->Gamma1256($W[$j - 2]), $W[$j - 7]),
-$this->Gamma0256($W[$j - 15])),
+										$this->Gamma0256($W[$j - 15])),
-$W[$j - 16]);
+									$W[$j - 16]);
-}
+							}
-$T1 = $this->safe_add(
+							$T1 = $this->safe_add(
-$this->safe_add(
+								$this->safe_add(
-$this->safe_add(
+									$this->safe_add(
-$this->safe_add($h, $this->Sigma1256($e)
+										$this->safe_add($h, $this->Sigma1256($e)
-),
+											),
-$this->Ch($e, $f, $g)),
+										$this->Ch($e, $f, $g)),
-$K[$j]),
+									$K[$j]),
-$W[$j]);
+								$W[$j]);
-$T2 = $this->safe_add($this->Sigma0256($a), $this->Maj($a, $b, $c));
+							$T2 = $this->safe_add($this->Sigma0256($a), $this->Maj($a, $b, $c));
-$h = $g;
+							$h = $g;
-$g = $f;
+							$g = $f;
-$f = $e;
+							$f = $e;
-$e = $this->safe_add($d, $T1);
+							$e = $this->safe_add($d, $T1);
-$d = $c;
+							$d = $c;
-$c = $b;
+							$c = $b;
-$b = $a;
+							$b = $a;
-$a = $this->safe_add($T1, $T2);
+							$a = $this->safe_add($T1, $T2);
-}
+					}
-$HASH[0] = $this->safe_add($a, $HASH[0]);
+					$HASH[0] = $this->safe_add($a, $HASH[0]);
-$HASH[1] = $this->safe_add($b, $HASH[1]);
+					$HASH[1] = $this->safe_add($b, $HASH[1]);
-$HASH[2] = $this->safe_add($c, $HASH[2]);
+					$HASH[2] = $this->safe_add($c, $HASH[2]);
-$HASH[3] = $this->safe_add($d, $HASH[3]);
+					$HASH[3] = $this->safe_add($d, $HASH[3]);
-$HASH[4] = $this->safe_add($e, $HASH[4]);
+					$HASH[4] = $this->safe_add($e, $HASH[4]);
-$HASH[5] = $this->safe_add($f, $HASH[5]);
+					$HASH[5] = $this->safe_add($f, $HASH[5]);
-$HASH[6] = $this->safe_add($g, $HASH[6]);
+					$HASH[6] = $this->safe_add($g, $HASH[6]);
-$HASH[7] = $this->safe_add($h, $HASH[7]);
+					$HASH[7] = $this->safe_add($h, $HASH[7]);
-}
+			}
-return $HASH;
+			return $HASH;
-}
+	}
-function str2binb ($str) {
+	function str2binb ($str) {
-$bin = Array();
+		$bin = Array();
-for ( $i = 0; $i < strlen($str); $i++ )
+		for ( $i = 0; $i < strlen($str); $i++ )
-{
+		{
-$byte = ord($str{$i});
+			$byte = ord($str{$i});
-$block = floor($i / 4);
+			$block = floor($i / 4);
-$stage = $i % 4;
+			$stage = $i % 4;
-if ( $stage == 0 )
+			if ( $stage == 0 )
-{
+			{
-$bin[$block] = $byte;
+				$bin[$block] = $byte;
-}
+			}
-else
+			else
-{
+			{
-$bin[$block] <<= 8;
+				$bin[$block] <<= 8;
-$bin[$block] |= $byte;
+				$bin[$block] |= $byte;
-}
+			}
-}
+		}
-while ( $stage < 3 )
+		while ( $stage < 3 )
-{
+		{
-$stage++;
+			$stage++;
-$bin[$block] <<= 8;
+			$bin[$block] <<= 8;
-}
+		}
-return $bin;
+		return $bin;
-}
+	}
-function byte2hex($byte)
+	function byte2hex($byte)
-{
+	{
-$b = dechex(ord($byte));
+		$b = dechex(ord($byte));
-return ( strlen($b) < 2 ) ? "0$b" : $b;
+		return ( strlen($b) < 2 ) ? "0$b" : $b;
-}
+	}
-function binb2hex ($binarray) {
+	function binb2hex ($binarray) {
-$hexcase = 0; /* hex output format. 0 - lowercase; 1 - uppercase */
+		$hexcase = 0; /* hex output format. 0 - lowercase; 1 - uppercase */
-$hex_tab = $hexcase ? "0123456789ABCDEF" : "0123456789abcdef";
+		$hex_tab = $hexcase ? "0123456789ABCDEF" : "0123456789abcdef";
-$str = "";
+		$str = "";
-foreach ( $binarray as $bytes )
+		foreach ( $binarray as $bytes )
-{
+		{
-$str .= implode('', array(
+			$str .= implode('', array(
-$this->byte2hex(chr(( $bytes >> 24 ) & 0xFF)),
+					$this->byte2hex(chr(( $bytes >> 24 ) & 0xFF)),
-$this->byte2hex(chr(( $bytes >> 16 ) & 0xFF)),
+					$this->byte2hex(chr(( $bytes >> 16 ) & 0xFF)),
-$this->byte2hex(chr(( $bytes >> 8 ) & 0xFF)),
+					$this->byte2hex(chr(( $bytes >> 8 ) & 0xFF)),
-$this->byte2hex(chr($bytes & 0xFF))
+					$this->byte2hex(chr($bytes & 0xFF))
-));
+				));
-}
+		}
-return $str;
+		return $str;
-}
+	}
-function hex_sha256 ( $s )
+	function hex_sha256 ( $s )
-{
+	{
-return $this->binb2hex(
+		return $this->binb2hex(
-$this->core_sha256(
+			$this->core_sha256(
-$this->str2binb($s),
+				$this->str2binb($s),
-strlen($s) * $this->chrsz)
+				strlen($s) * $this->chrsz)
-);
+			);
-}
+	}
 }
 if ( !function_exists('sha256') )
 {
-function sha256($text)
+	function sha256($text)
-{
+	{
-static $sha_obj = false;
+		static $sha_obj = false;
-if ( !is_object($sha_obj) )
+		if ( !is_object($sha_obj) )
-$sha_obj = new SHA256();
+			$sha_obj = new SHA256();
-return $sha_obj->hex_sha256($text);
+		return $sha_obj->hex_sha256($text);
-}
+	}
 }
 ?>

changeset 1227	bdac73ed481e
parent 1081	745200a9cc2a
child 1261	beb0da036222