46 lines
1.5 KiB
PHP
46 lines
1.5 KiB
PHP
<?php
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function cryption($hash, $method)
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{
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// Method e=encrypt, d=decrypt
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// Store the cipher method
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# Für PHP 7.1 noch 128
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$ciphering = "AES-128-CTR";
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// Use OpenSSl Encryption method
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$iv_length = openssl_cipher_iv_length($ciphering);
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$options = 0;
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// Store the encryption key
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$key = "!O3JoDLnBI6#[M%4S!sZH1zU0?8+5C_!}";
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// Non-NULL Initialization Vector for encryption
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$vector = '0843413489572156';
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if ($method == 'e') {
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// Use openssl_encrypt() function to encrypt the data
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$encryption = openssl_encrypt($hash, $ciphering, $key, $options, $vector);
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return $encryption;
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}
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// Store a string into the variable which
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// need to be Encrypted
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if ($method == 'd') {
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// Use openssl_decrypt() function to decrypt the data
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$decryption = openssl_decrypt($hash, $ciphering, $key, $options, $vector);
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# kryptische Returnwerte bei falschem String entfernen: Nur Zahlen und Buchstaben
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#$decryption = preg_replace('![^0-9a-zA-Z]!', '', $decryption);
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# https://stackoverflow.com/questions/1176904/php-how-to-remove-all-non-printable-characters-in-a-string
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$decryption = preg_replace('/[\x00-\x1F\x7F-\xFF]/', '', $decryption);
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return $decryption;
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}
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}
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#$crypt = cryption("!DWdMiU#", 'e');
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#echo $crypt;
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#echo "<br>";
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#echo cryption($crypt, 'd');
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?>
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