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<?php class EAHashor { private $right32; public function __construct() { $this->right32 = ~((~0 << 16) << 16); } public function eaEncode($string){ $a = "67452301"; $b = "EFCDAB89"; $c = "98BADCFE"; $d = "10325476"; $words = $this->init($string); for($i = 0, $l = count($words) / 16 - 1; $i <= $l; $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"); //the line below has been changed 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"); //this last line is used 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 $MD5; } /* General functions */ private function hexbin($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 $bin; } private function strhex($str){ $hex = ""; for ($i = 0; $i < strlen($str); $i++){ $hex = $hex.$this->leftpad(dechex(ord($str[$i])), 2); } return $hex; } /* MD5-specific functions */ private function init($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 $block; } private function pad($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 $bin; } /* MD5 base functions */ private function F($X, $Y, $Z){ $X = $this->binarySafeHexDec($X); $Y = $this->binarysafehexdec($Y); $Z = $this->binarysafehexdec($Z); $calc = (($X & $Y) | ((~ $X) & $Z)); // X AND Y OR NOT X AND Z return $calc; } private function G($X, $Y, $Z){ $X = $this->binarysafehexdec($X); $Y = $this->binarysafehexdec($Y); $Z = $this->binarysafehexdec($Z); $calc = (($X & $Z) | ($Y & (~ $Z))); // X AND Z OR Y AND NOT Z return $calc; } private function H($X, $Y, $Z){ $X = $this->binarysafehexdec($X); $Y = $this->binarysafehexdec($Y); $Z = $this->binarysafehexdec($Z); $calc = ($X ^ $Y ^ $Z); // X XOR Y XOR Z return $calc; } private function I($X, $Y, $Z){ $X = $this->binarysafehexdec($X); $Y = $this->binarysafehexdec($Y); $Z = $this->binarysafehexdec($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 $t - hex */ private function FF(&$A, $B, $C, $D, $M, $s, $t){ $A = $this->binarysafehexdec($A); $t = $this->binarysafehexdec($t); $M = $this->binarysafebindec($M); printf("A: %032b\nt: %032b\nM: %032b\nF: %032b\n", $A, $t, $M, $this->F($B, $C, $D)); $A = $this->add($A, $this->F($B, $C, $D), $M, $t) & $this->right32; //decimal printf("4: %032b\n", $this->binarysafehexdec($A)); $A = $this->rotate($A, $s); echo "5: $A\n"; $A = dechex($this->add($this->binarysafehexdec($B), $this->binarysafehexdec($A)) & $this->right32); echo "Result: $A\n\n"; } private function GG(&$A, $B, $C, $D, $M, $s, $t){ $A = $this->binarysafehexdec($A); $t = $this->binarysafehexdec($t); $M = $this->binarysafebindec($M); $A = $this->add($A, $this->G($B, $C, $D), $M, $t) & $this->right32; //decimal $A = $this->rotate($A, $s); $A = dechex($this->add($this->binarysafehexdec($B), $this->binarysafehexdec($A)) & $this->right32); } private function HH(&$A, $B, $C, $D, $M, $s, $t){ $A = $this->binarysafehexdec($A); $t = $this->binarysafehexdec($t); $M = $this->binarysafebindec($M); $A = $this->add($A, $this->H($B, $C, $D), $M, $t) & $this->right32; //decimal $A = $this->rotate($A, $s); $A = dechex($this->add($this->binarysafehexdec($B), $this->binarysafehexdec($A)) & $this->right32); } private function II(&$A, $B, $C, $D, $M, $s, $t){ $A = $this->binarysafehexdec($A); $t = $this->binarysafehexdec($t); $M = $this->binarysafebindec($M); $A = $this->add($A, $this->I($B, $C, $D), $M, $t) & $this->right32; //decimal $A = $this->rotate($A, $s); $A = dechex($this->add($this->binarysafehexdec($B), $this->binarysafehexdec($A)) & $this->right32); } private function rotate ($decimal, $bits) { return dechex(($decimal << $bits) | (($decimal >> (32 - $bits)) & (~(~0 << $bits) & $this->right32))); } private function addVars(&$a, &$b, &$c, &$d, $A, $B, $C, $D){ $A = $this->binarysafehexdec($A); $B = $this->binarysafehexdec($B); $C = $this->binarysafehexdec($C); $D = $this->binarysafehexdec($D); $aa = $this->binarysafehexdec($a); $bb = $this->binarysafehexdec($b); $cc = $this->binarysafehexdec($c); $dd = $this->binarysafehexdec($d); $aa = $this->add($aa, $A) & $this->right32; $bb = $this->add($bb, $B) & $this->right32; $cc = $this->add($cc, $C) & $this->right32; $dd = $this->add($dd, $D) & $this->right32; $a = dechex($aa); $b = dechex($bb); $c = dechex($cc); $d = dechex($dd); } private 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 $needs_padding; } private function binarySafeBinDec($bin) { $bits = array_reverse(str_split($bin, 1)); $result = 0; foreach ($bits as $position => $bit) { $result |= ((int) $bit) << $position; } return $result; } private function binarySafeHexDec($hex) { $h = str_split(substr(str_pad($hex, 8, '0', STR_PAD_LEFT), -8), 2); return (hexdec($h[0]) << 24) | (hexdec($h[1]) << 16) | (hexdec($h[2]) << 8) | hexdec($h[3]); } private function leftShiftByOne($intAsStr) { $p = unpack('N2', $intAsStr); return pack('N2', ($p[1] << 1) | (($p[2] >> 31) & 0x00000001), $p[2] << 1); } private function binarySafeAddition($a, $b) { // NB: we don't actually need 64 bits, but 40 bit integers are confusing $a = "\x00\x00\x00\x00" . pack('N', $a); $b = "\x00\x00\x00\x00" . pack('N', $b); $carry = $a & $b; $result = $a ^ $b; while ($carry != "\x00\x00\x00\x00\x00\x00\x00\x00") { $shiftedcarry = $this->leftShiftByOne($carry); $carry = $result & $shiftedcarry; $result ^= $shiftedcarry; } return current(unpack('N', substr($result, 4))); } private function add() { $result = 0; foreach (func_get_args() as $int) { $result = $this->binarySafeAddition($result, $int); } return $result; } } $eahashor = new EAHashor(); $hash = $eahashor->eaEncode('test'); echo $hash;
Output for git.master, git.master_jit, rfc.property-hooks
A: 01100111010001010010001100000001 t: 11010111011010101010010001111000 M: 01110100011100110110010101110100 F: 10011000101110101101110011111110 4: 01110010100001000010011100110001 5: 25ef04f5a5 Result: ded2a12e A: 00010000001100100101010001110110 t: 11101000110001111011011101010110 M: 00000000000000000000000010000000 F: 11001110111010001111110111011000 4: 01010011010101000101001001010010 5: c7e30a24c7e Result: f74edac A: 10011000101110101101110011111110 t: 00100100001000000111000011011011 M: 00000000000000000000000000000000 F: 11101110110110011010001100101101 4: 10000000011101100010000100011000 5: 15769e20d5769 Result: f1824515 A: 11101111110011011010101110001001 t: 11000001101111011100111011101110 M: 00000000000000000000000000000000 F: 00001111010100001110010100101110 4: 00110101011001100111100001110111 5: 303717e9703717 Result: daf27c2c A: 11011110110100101010000100101110 t: 11110101011111000000111110101111 M: 00000000000000000000000000000000 F: 11010101100001101100010110000100 4: 01001001001100111000100101110111 5: 54eabb30d4 Result: c5adad00 A: 00001111011101001110110110101100 t: 01000111100001111100011000101010 M: 00000000000000000000000000000000 F: 11110000101000100110110000010101 4: 00000001011000010000011100110001 5: 479f1feb479 Result: b7ac6179 A: 11110001100000100100010100010101 t: 10101000001100000100011000010011 M: 00000000000000000000000000000000 F: 11001101111111100011110100000100 4: 00111001011000111000100000101000 5: cf619058cf61 Result: 480530da A: 11011010111100100111110000101100 t: 11111101010001101001010100000001 M: 00000000000000000000000000000000 F: 10000101101011001010110101011000 4: 01110101001100110111011000000101 5: 17796fa157796f Result: e95caa49 A: 11000101101011011010110100000000 t: 01101001100000001001100011011000 M: 00000000000000000000000000000000 F: 01011110101001000110000101111000 4: 01111001001110010010100001001000 5: 46e953a846 Result: d2b0528f A: 10110111101011000110000101111001 t: 10001011010001001111011110101111 M: 00000000000000000000000000000000 F: 11001000000101010010001001011001 4: 10000100100101110100001000001001 5: b067b810b0 Result: 3a68633f A: 01001000000001010011000011011010 t: 11111111111111110101101110110001 M: 00000000000000000000000000000000 F: 11010011001101001100101001001111 4: 01010110011101000010011000011000 5: 3672adb43672 Result: e81c99b1 A: 11101001010111001010101001001001 t: 10001001010111001101011110111110 M: 00000000000000000000000000000000 F: 00111010101010000100001100111111 4: 00001000100001100101100001100010 5: 2b587151ab5871 Result: 39c7f222 A: 11010010101100000101001010001111 t: 01101011100100000001000100100010 M: 00000000000000000000000000000000 F: 00101010001011001001000100111101 4: 01010001100101110001000001010100 5: 34367a7734 Result: 70426956 A: 00111010011010000110001100111111 t: 11111101100110000111000110010011 M: 00000000000000000000000000000000 F: 10111000010111101111000010100011 4: 00110010100000001000001100001001 5: f05fc575f05 Result: 6c99c85b A: 11101000000111001001100110110001 t: 10100110011110010100001110001110 M: 00000000000000000000000000100000 F: 01110001010001100111101001110010 4: 10010010011000110000010010000001 5: 1ffb8afa3ffb8 Result: 1c3dc813 A: 00111001110001111111001000100010 t: 01001001101101000000100000100001 M: 00000000000000000000000000000000 F: 01101100010110111110100101010111 4: 00100011100100000011000100110000 5: 3bf5f8e6bbf5f8 Result: 2f9be0b 6337a43e8cd36058e80ae8cb4f465998

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