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<?php class EAHashor { //initialise the class function __construct() { } function eaEncode($string){ $a = "67452301"; $b = "EFCDAB89"; $c = "98BADCFE"; $d = "10325476"; $words = $this->init($string); for($i = 0; $i <= count($words)/16-1; $i++){ $A = $a; $B = $b; $C = $c; $D = $d; /* ROUND 1 */ $this->FF ($A, $B, $C, $D, $words[0 + ($i * 16)], 7, "d76aa478"); $this->FF ($D, $A, $B, $C, $words[1 + ($i * 16)], 12, "e8c7b756"); $this->FF ($C, $D, $A, $B, $words[2 + ($i * 16)], 17, "242070db"); $this->FF ($B, $C, $D, $A, $words[3 + ($i * 16)], 22, "c1bdceee"); $this->FF ($A, $B, $C, $D, $words[4 + ($i * 16)], 7, "f57c0faf"); $this->FF ($D, $A, $B, $C, $words[5 + ($i * 16)], 12, "4787c62a"); $this->FF ($C, $D, $A, $B, $words[6 + ($i * 16)], 17, "a8304613"); $this->FF ($B, $C, $D, $A, $words[7 + ($i * 16)], 22, "fd469501"); $this->FF ($A, $B, $C, $D, $words[8 + ($i * 16)], 7, "698098d8"); $this->FF ($D, $A, $B, $C, $words[9 + ($i * 16)], 12, "8b44f7af"); $this->FF ($C, $D, $A, $B, $words[10 + ($i * 16)], 17, "ffff5bb1"); $this->FF ($B, $C, $D, $A, $words[11 + ($i * 16)], 22, "895cd7be"); $this->FF ($A, $B, $C, $D, $words[12 + ($i * 16)], 7, "6b901122"); $this->FF ($D, $A, $B, $C, $words[13 + ($i * 16)], 12, "fd987193"); $this->FF ($C, $D, $A, $B, $words[14 + ($i * 16)], 17, "a679438e"); $this->FF ($B, $C, $D, $A, $words[15 + ($i * 16)], 22, "49b40821"); /* ROUND 2 */ $this->GG ($A, $B, $C, $D, $words[1 + ($i * 16)], 5, "f61e2562"); $this->GG ($D, $A, $B, $C, $words[6 + ($i * 16)], 9, "c040b340"); $this->GG ($C, $D, $A, $B, $words[11 + ($i * 16)], 14, "265e5a51"); $this->GG ($B, $C, $D, $A, $words[0 + ($i * 16)], 20, "e9b6c7aa"); $this->GG ($A, $B, $C, $D, $words[5 + ($i * 16)], 5, "d62f105d"); $this->GG ($D, $A, $B, $C, $words[10 + ($i * 16)], 9, "02441453"); $this->GG ($C, $D, $A, $B, $words[15 + ($i * 16)], 14, "d8a1e681"); $this->GG ($B, $C, $D, $A, $words[4 + ($i * 16)], 20, "e7d3fbc8"); $this->GG ($A, $B, $C, $D, $words[9 + ($i * 16)], 5, "21e1cde6"); $this->GG ($D, $A, $B, $C, $words[14 + ($i * 16)], 9, "c33707d6"); $this->GG ($C, $D, $A, $B, $words[3 + ($i * 16)], 14, "f4d50d87"); $this->GG ($B, $C, $D, $A, $words[8 + ($i * 16)], 20, "455a14ed"); $this->GG ($A, $B, $C, $D, $words[13 + ($i * 16)], 5, "a9e3e905"); $this->GG ($D, $A, $B, $C, $words[2 + ($i * 16)], 9, "fcefa3f8"); $this->GG ($C, $D, $A, $B, $words[7 + ($i * 16)], 14, "676f02d9"); $this->GG ($B, $C, $D, $A, $words[12 + ($i * 16)], 20, "8d2a4c8a"); /* ROUND 3 */ $this->HH ($A, $B, $C, $D, $words[5 + ($i * 16)], 4, "fffa3942"); $this->HH ($D, $A, $B, $C, $words[8 + ($i * 16)], 11, "8771f681"); //HH ($C, $D, $A, $B, $words[11 + ($i * 16)], 16, "6d9d6122"); //EA change to use 14 rather than 16 as seen in the commented line $this->HH ($C, $D, $A, $B, $words[11 + ($i * 16)], 14, "6d9d6122"); $this->HH ($B, $C, $D, $A, $words[14 + ($i * 16)], 23, "fde5380c"); $this->HH ($A, $B, $C, $D, $words[1 + ($i * 16)], 4, "a4beea44"); $this->HH ($D, $A, $B, $C, $words[4 + ($i * 16)], 11, "4bdecfa9"); $this->HH ($C, $D, $A, $B, $words[7 + ($i * 16)], 16, "f6bb4b60"); $this->HH ($B, $C, $D, $A, $words[10 + ($i * 16)], 23, "bebfbc70"); $this->HH ($A, $B, $C, $D, $words[13 + ($i * 16)], 4, "289b7ec6"); $this->HH ($D, $A, $B, $C, $words[0 + ($i * 16)], 11, "eaa127fa"); $this->HH ($C, $D, $A, $B, $words[3 + ($i * 16)], 16, "d4ef3085"); $this->HH ($B, $C, $D, $A, $words[6 + ($i * 16)], 23, "04881d05"); $this->HH ($A, $B, $C, $D, $words[9 + ($i * 16)], 4, "d9d4d039"); $this->HH ($D, $A, $B, $C, $words[12 + ($i * 16)], 11, "e6db99e5"); $this->HH ($C, $D, $A, $B, $words[15 + ($i * 16)], 16, "1fa27cf8"); $this->HH ($B, $C, $D, $A, $words[2 + ($i * 16)], 23, "c4ac5665"); /* ROUND 4 */ $this->II ($A, $B, $C, $D, $words[0 + ($i * 16)], 6, "f4292244"); $this->II ($D, $A, $B, $C, $words[7 + ($i * 16)], 10, "432aff97"); $this->II ($C, $D, $A, $B, $words[14 + ($i * 16)], 15, "ab9423a7"); $this->II ($B, $C, $D, $A, $words[5 + ($i * 16)], 21, "fc93a039"); $this->II ($A, $B, $C, $D, $words[12 + ($i * 16)], 6, "655b59c3"); $this->II ($D, $A, $B, $C, $words[3 + ($i * 16)], 10, "8f0ccc92"); $this->II ($C, $D, $A, $B, $words[10 + ($i * 16)], 15, "ffeff47d"); $this->II ($B, $C, $D, $A, $words[1 + ($i * 16)], 21, "85845dd1"); $this->II ($A, $B, $C, $D, $words[8 + ($i * 16)], 6, "6fa87e4f"); $this->II ($D, $A, $B, $C, $words[15 + ($i * 16)], 10, "fe2ce6e0"); $this->II ($C, $D, $A, $B, $words[6 + ($i * 16)], 15, "a3014314"); $this->II ($B, $C, $D, $A, $words[13 + ($i * 16)], 21, "4e0811a1"); $this->II ($A, $B, $C, $D, $words[4 + ($i * 16)], 6, "f7537e82"); $this->II ($D, $A, $B, $C, $words[11 + ($i * 16)], 10, "bd3af235"); $this->II ($C, $D, $A, $B, $words[2 + ($i * 16)], 15, "2ad7d2bb"); $this->II ($B, $C, $D, $A, $words[9 + ($i * 16)], 21, "eb86d391"); //EA change to use this last line twice $this->II ($B, $C, $D, $A, $words[9 + ($i * 16)], 21, "eb86d391"); $this->addVars($a, $b, $c, $d, $A, $B, $C, $D); } $MD5 = ''; foreach (array($a, $b, $c, $d) as $x) { $MD5 .= implode('', array_reverse(str_split($this->leftpad($x, 8), 2))); } return $MD5; } /* General functions */ function hexbin($str){ $hexbinmap = array( "0" => "0000", "1" => "0001", "2" => "0010", "3" => "0011" , "4" => "0100" , "5" => "0101" , "6" => "0110" , "7" => "0111" , "8" => "1000" , "9" => "1001" , "A" => "1010" , "a" => "1010" , "B" => "1011" , "b" => "1011" , "C" => "1100" , "c" => "1100" , "D" => "1101" , "d" => "1101" , "E" => "1110" , "e" => "1110" , "F" => "1111" , "f" => "1111"); $bin = ""; for ($i = 0; $i < strlen($str); $i++){ $bin .= $hexbinmap[$str[$i]]; } $bin = ltrim($bin, '0'); // echo "Original: ".$str." New: ".$bin."<br />"; return $bin; } function strhex($str){ $hex = ""; for ($i = 0; $i < strlen($str); $i++){ $hex = $hex.$this->leftpad(dechex(ord($str[$i])), 2); } return $hex; } /* MD5-specific functions */ function init($string){ $len = strlen($string) * 8; $hex = $this->strhex($string); // convert ascii string to hex $bin = $this->leftpad($this->hexbin($hex), $len); // convert hex string to bin $padded = $this->pad($bin); $padded = $this->pad($padded, 1, $len); $block = str_split($padded, 32); foreach ($block as &$b) { $b = implode('', array_reverse(str_split($b, 8))); } return $block; } function pad($bin, $type=0, $len = 0){ if($type == 0){ $bin = $bin."1"; $buff = strlen($bin) % 512; if($buff != 448){ while(strlen($bin) % 512 != 448){ $bin = $bin."0"; } } } // append length (b) of string to latter 64 bits elseif($type == 1){ $bLen = $this->leftpad(decbin($len), 64); $bin .= implode('', array_reverse(str_split($bLen, 8))); } return $bin; } /* MD5 base functions */ function F($X, $Y, $Z){ $X = hexdec($X); $Y = hexdec($Y); $Z = hexdec($Z); $calc = (($X & $Y) | ((~ $X) & $Z)); // X AND Y OR NOT X AND Z return $calc; } function G($X, $Y, $Z){ $X = hexdec($X); $Y = hexdec($Y); $Z = hexdec($Z); $calc = (($X & $Z) | ($Y & (~ $Z))); // X AND Z OR Y AND NOT Z return $calc; } function H($X, $Y, $Z){ $X = hexdec($X); $Y = hexdec($Y); $Z = hexdec($Z); $calc = ($X ^ $Y ^ $Z); // X XOR Y XOR Z return $calc; } function I($X, $Y, $Z){ $X = hexdec($X); $Y = hexdec($Y); $Z = hexdec($Z); $calc = ($Y ^ ($X | (~ $Z))) ; // Y XOR (X OR NOT Z) return $calc; } /* MD5 round functions */ /* $A - hex, $B - hex, $C - hex, $D - hex (F - dec) $M - binary $s - decimal $t - hex */ function FF(&$A, $B, $C, $D, $M, $s, $t){ $A = hexdec($A); $t = hexdec($t); $M = bindec($M); $A = ($A + $this->F($B, $C, $D) + $M + $t) & 0xffffffff; //decimal $A = $this->rotate($A, $s); $A = dechex((hexdec($B) + hexdec($A)) & 0xffffffff); } function GG(&$A, $B, $C, $D, $M, $s, $t){ $A = hexdec($A); $t = hexdec($t); $M = bindec($M); $A = ($A + $this->G($B, $C, $D) + $M + $t) & 0xffffffff; //decimal $A = $this->rotate($A, $s); $A = dechex((hexdec($B) + hexdec($A)) & 0xffffffff); } function HH(&$A, $B, $C, $D, $M, $s, $t){ $A = hexdec($A); $t = hexdec($t); $M = bindec($M); $A = ($A + $this->H($B, $C, $D) + $M + $t) & 0xffffffff; //decimal $A = $this->rotate($A, $s); $A = dechex((hexdec($B) + hexdec($A)) & 0xffffffff); } function II(&$A, $B, $C, $D, $M, $s, $t){ $A = hexdec($A); $t = hexdec($t); $M = bindec($M); $A = ($A + $this->I($B, $C, $D) + $M + $t) & 0xffffffff; //decimal $A = $this->rotate($A, $s); $A = dechex((hexdec($B) + hexdec($A)) & 0xffffffff); } // shift function rotate ($decimal, $bits) { //returns hex return dechex((($decimal << $bits) | ($decimal >> (32 - $bits))) & 0xffffffff); } function addVars(&$a, &$b, &$c, &$d, $A, $B, $C, $D){ $A = hexdec($A); $B = hexdec($B); $C = hexdec($C); $D = hexdec($D); $aa = hexdec($a); $bb = hexdec($b); $cc = hexdec($c); $dd = hexdec($d); $aa = ($aa + $A) & 0xffffffff; $bb = ($bb + $B) & 0xffffffff; $cc = ($cc + $C) & 0xffffffff; $dd = ($dd + $D) & 0xffffffff; $a = dechex($aa); $b = dechex($bb); $c = dechex($cc); $d = dechex($dd); } function leftpad($needs_padding, $alignment) { if (strlen($needs_padding) % $alignment) { $pad_amount = $alignment - strlen($needs_padding) % $alignment; $left_pad = implode('', array_fill(0, $pad_amount, '0')); $needs_padding = $left_pad . $needs_padding; } return $needs_padding; } } $eahashor = new EAHashor(); $hash = $eahashor->eaEncode('test'); echo $hash;