Delete Crypt.php

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killua 2019-02-21 22:22:05 +02:00 committed by GitHub
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commit 58f4f4c18f
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Crypt.php
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<?php
namespace killua;
final class Crypt0 {
// a string of all alphanumeric characters
// used for random string generation
public static $S = [];
public static $chars = '0123456789abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ';
public static $key = 'yj21i6d6cO35efgDH43G4Pe3XSo7aEUcb4wiee1R574bdUY77Iv787fFta7Fwp86pA6b8U6';
public static function encode_url( string $str ) : string {
$i = -1;
$encoded = '';
while( ($i++) < mb_strlen( $str ) - 1 ){
if( $str[$i] == ' ' ){
$encoded .= '+';
}
else if( (ord( $str[$i] ) <= 57 && ord( $str[$i] ) >= 48) ||
(ord( $str[$i] ) >= 65 && ord( $str[$i] ) <= 90) ||
(ord( $str[$i] ) >= 97 && ord( $str[$i] ) <= 122) ||
( $str[$i] == '-' || $str[$i] == '_' || $str[$i] == '.' || $str[$i] == '~' ) ){
$encoded .= $str[$i];
} else{
$encoded .= '%';
$encoded .= self::dec_2_hex( (int) ord( $str[$i] ) );
}
}
return $encoded;
}
public static function decode_url( string $str ) : string {
$i = -1;
$decoded = '';
}
public static function signature_generate() : string {
$length = strlen( self::$chars );
$signature = '';
$i = 0;
$fp = fopen( '/dev/urandom', 'rb' );
$f = fread( $fp, strlen( self::$chars ) );
while( ( $i++ ) < $length ) {
if( $i % 4 == 0 ){
$signature .= dechex( ord( $f[$i] ) );
} else{
$signature .= self::$chars[ mt_rand( 0, $length - 1 ) ];
}
}
return substr( $signature, 0, strlen( $signature ) - 5 );
}
public static function dec_2_hex( int $dec_num ) : string {
$hex = '';
$remainder = 0;
while( (int) $dec_num != 0 ){
$remainder = $dec_num % 16;
if( $remainder <= 9 ){
$hex .= chr( $remainder + 48 );
} else{
$hex .= chr( $remainder + ( (48 << 1) - 9 ) );
}
$dec_num /= 16;
}
return strrev( $hex );
}
public static function hex_2_dec( string $hex_string ) : int {
$d = 0;
$num = 0;
$i = strlen( $hex_string );
$hex_string = strrev( $hex_string );
# remove leading '0x | 0X'
if ( strpos( $hex_string, '0x' ) === 0 || strpos( $hex_string, '0X' ) === 0 ) {
$hex_string = substr( $hex_string, 2 );
}
while( ($i--) > 0 ){
if( ord( $hex_string[$i] ) >= 65 && ord( $hex_string[$i] ) <= 90 ){
$d = ord( $hex_string[$i] ) - ord('A') + 10;
$num += (int) ($d * (16 ** $i));
}
else if( ord( $hex_string[$i] ) >= 97 && ord( $hex_string[$i] ) <= 122 ){
$d = ord( $hex_string[$i] ) - ord('a') + 10;
$num += (int) ($d * (16 ** $i));
}
else{
$num += (int) ((int) $hex_string[$i] * (16 ** $i));
}
}
return $num;
}
# ROT13 cipher
public static function rot13 ( string $str ) : string {
$i = -1;
$newStr = '';
while ( ($i++) < mb_strlen( $str ) - 1 ) {
if ( (ord($str[$i]) >= ord('A') && ord($str[$i]) <= ord('M') )
|| (ord($str[$i]) >= ord('a') && ord($str[$i]) <= ord('m') ) ) {
$newStr .= chr( ord( $str[$i] ) + 13 );
}
else if ( (ord($str[$i]) >= ord('N') && ord($str[$i]) <= ord('Z'))
|| (ord($str[$i]) >= ord('n') && ord($str[$i]) <= ord('z')) ) {
$newStr .= chr( ord( $str[$i] ) - 13 );
}
else{
$newStr .= $str[$i];
}
}
return $newStr;
}
# RC4
public function rc_crypt0( $key, &$S, $message ) {
$crypted = '';
for ( $i = 0 ; $i < 256 ; $i++ ) {
$S[$i] = (int) $i;
}
$j = 0;
for ( $i = 0 ; $i < 256 ; $i++ ) {
$j = ( $j + $S[$i] + ord( $key[ $i % strlen( $key ) ] ) ) % 256;
$temp = $S[$i];
$S[$i] = $S[$j];
$S[$j] = $temp;
}
$i = 0;
$j = 0;
$x = -1;
while ( ($x++) < strlen( $message ) - 1 ) {
$i = ( $i + 1 ) % 256;
$j = ( $j + $S[$i] ) % 256;
$temp = $S[$i];
$S[$i] = $S[$j];
$S[$j] = $temp;
$K = $S[( $S[$i] + $S[$j] ) % 256];
$crypted[$x] = (string) chr( ord( $message[$x] ) ^ $K ); # XOR the current plaintext digit with the current 'S' digit
}
return $crypted;
}
public function code( $msg ) {
$res = '';
for ( $i = 0 ; $i < strlen( $msg ) ; $i++ ) {
$res[$i] = chr( (ord( $msg[$i] ) ^ 0x05) % 256 );
}
return $res;
}
public function cry0( string $msg, int $num ){
$str = '';
for ( $i = 0 ; $i < strlen( $msg ) ; $i++ ) {
$str[$i] = chr( ord( $msg[$i] ) - $num );
}
return $str;
}
public function cry1( string $msg, int $num ){
$str = '';
for ( $i = 0 ; $i < strlen( $msg ) ; $i++ ) {
$str[$i] = chr( ord( $msg[$i] ) + $num );
}
return $str;
}
public static function dec_2_bin( int $dec_num ) : string {
$i = -1;
$bin = '';
while( $dec_num ){
$bin .= (string) ($dec_num & 1);
$dec_num >>= 1;
}
return strrev( $bin );
}
public function rnd_slt( string &$msg ){
}
}
//echo \killua\Crypt0::dec_2_hex( 346777 );
//echo \killua\Crypt0::hex_2_dec( '3a3' );
//echo \killua\Crypt0::dec_2_hex( '931' );
//echo \killua\Crypt0::dec_2_bin( 231 );
//$a = \killua\Crypt0::code( 'what is that?' );
//echo \killua\Crypt0::code( $a );
//$a = \killua\Crypt0::cry0( 'what is that', 4 );
//echo \killua\Crypt0::cry1( $a, 4 );
//$key = \killua\Crypt0::$key;
//$msg0 = 'what the fuck man? my h0use is f0ken dead!';
//$msg0 = "Holy sh1t man! that's fo0-ken awesome!?!$";
//$a0 = \killua\Crypt0::rc_crypt0( $key, \killua\Crypt0::$S, $msg0 );
//echo $a0 . "\x0a";
//$b0 = \killua\Crypt0::rc_crypt0( $key, \killua\Crypt0::$S, $a0 );
//echo $b0 . "\x0a";
?>