<?php
class EAHashor {
private $right32;
//initialise the class
public function __construct() {
// This is a 32- and 64-bit safe way to get an integer with only the
// right-most 32-bits set
$this->right32 = ~((~0 << 16) << 16);
}
public function eaEncode($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);
$A = $this->add($A, $this->F($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);
echo $A . "\n";
}
private function GG(&$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);
echo $A . "\n";
}
private function HH(&$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);
echo $A . "\n";
}
private function II(&$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);
echo $A . "\n";
}
// shift
private function rotate ($decimal, $bits) { //returns hex
return dechex((($decimal << $bits) | ($decimal >> (32 - $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 $needs_padding;
}
public function binarySafeBinDec($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)
{
$h = str_split(str_pad($hex, 8, '0', STR_PAD_LEFT), 2);
return (hexdec($h[0]) << 24) | (hexdec($h[1]) << 16) | (hexdec($h[2]) << 8) | hexdec($h[3]);
}
// shamelessly stolen from http://stackoverflow.com/a/4068918/889949
private function binarySafeAddition($a, $b) {
$carry = $a & $b;
$result = $a ^ $b;
while($carry != 0) {
$shiftedcarry = $carry << 1;
$carry = $result & $shiftedcarry;
$result ^= $shiftedcarry;
}
return $result;
}
public 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
- ded2a12e
f74edac
f1824515
daf27c2c
c5adad00
b7ac6179
480530da
e95caa49
d2b0528f
3a68633f
e81c99b1
39c7f222
70426956
6c99c85b
1c3dc813
2f9be0b
e6bca679
95200ee0
a1551890
dce63c0f
90098dd
15c03ec7
4ba62b4
eb97fa59
7f3420de
d933566e
89f5cc1e
e2416eb4
1dfc71b1
4cb69e35
8841b1fd
377d2ce4
4f880ed5
38cc24fb
3f467281
1f0524df
ec6be8bf
8a081345
270ec2ad
7a1e5bba
3c1d7938
90248b89
2c625dae
1be1dec1
f577043c
9add0e0b
4a79ce5b
137cff57
da2c677d
44859aa8
3c813104
94525ddc
7515e4cc
757f59a7
17f57d54
77960830
c0239a23
67702270
fe929798
ee3e6135
d75f1462
8826f1d9
332d2dea
90bed7f4
68932803
6337a43e8cd36058e80ae8cb4f465998
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