Rusty Shackleford
60 lines
2.4 KiB
PHP
60 lines
2.4 KiB
PHP
<?php # NCC # Encryption toolkit
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final class NCC extends Protector {
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const CRYPT_METHOD_CIPHER = 'aes-256-ctr';
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const CRYPT_METHOD_DIGEST = 'md5';
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const CRYPT_RAW_DATA = null;#OPENSSL_RAW_DATA;
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const CRYPT_SEED = ',343K^bEqxFYL!%uEMK-№hf+}m4444y3';
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static function encrypt($m,$k=null,$iv=null){
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if($iv===null) $iv = static::num(16);
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if($k===null) $k = static::CRYPT_SEED;
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return openssl_encrypt($m,static::CRYPT_METHOD_CIPHER,openssl_digest($k,static::CRYPT_METHOD_DIGEST,true),static::CRYPT_RAW_DATA,$iv);
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}
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static function decrypt($m,$k=null,$iv=null){
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if($iv===null) return false;
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if($k===null) $k = static::CRYPT_SEED;
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return openssl_decrypt($m,static::CRYPT_METHOD_CIPHER,openssl_digest($k,static::CRYPT_METHOD_DIGEST,true),static::CRYPT_RAW_DATA,$iv);
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}
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static function match($p,$h){ return (crypt($p,$h)==$h); }
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static function num($x){
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if(function_exists('mcrypt_create_iv')) return mcrypt_create_iv($x,MCRYPT_DEV_URANDOM);
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return openssl_random_pseudo_bytes($x);
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}
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static function hash($p,$f=9){
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$salt=substr(strtr(base64_encode(static::num(17)),'+','/'),0,22);
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$param='$'.implode('$',array("2y",str_pad($f,2,"0",STR_PAD_LEFT),$salt));
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$final=crypt($p,$param);
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if(mb_strlen($final)>13) return $final;
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return false;
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}
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static function hmac_sign($m,$k){ return hash_hmac('sha256',$m,$k).$m; }
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static function hmac_verify($b,$k){ return hash_equals(hash_hmac('sha256',mb_substr($b,64,null,'8bit'),$k),mb_substr($b,0,64,'8bit')); }
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static function token_patch(){ return bin2hex(static::num(32)); }
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static function token_match($s,$p){ return hash_equals($s,$p); }
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static function token($secret,$verify=false){
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if(empty(X::$sign)) return false;
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$real = crypt($secret, X::$sign);
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if($verify) return hash_equals($real,$verify);
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return $real;
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}
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static function noise_add($data,$key){
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$key = static::hash($key); $str = '';
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for($i=0,$j=0,$ld=strlen($data),$lk=strlen($key); $i<$ld; ++$i,++$j){
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if ($j>=$lk) $j=0;
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$str.=chr((ord($data[$i])+ord($key[$j]))%256);
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}
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return $str;
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}
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static function noise_rem($data,$key){
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$key = static::hash($key); $str = '';
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for($i=0,$j=0,$ld=strlen($data),$lk=strlen($key); $i<$ld; ++$i,++$j){
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if($j>=$lk) $j=0;
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$temp=ord($data[$i])-ord($key[$j]);
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if($temp<0) $temp+=256;
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$str.=chr($temp);
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}
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return $str;
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}
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static function rstr($len){ return bin2hex(random_bytes(abs(intval($len)))); }
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} |