<?php function decryptData($value){ $key = "ICS2015"; $crypttext = base64_decode($value); $iv_size = mcrypt_get_iv_size(MCRYPT_RIJNDAEL_256, MCRYPT_MODE_ECB); $iv = mcrypt_create_iv($iv_size, MCRYPT_RAND); $decrypttext = mcrypt_decrypt(MCRYPT_RIJNDAEL_256, $key, $crypttext, MCRYPT_MODE_ECB, $iv); return trim($decrypttext); } function encryptData($value) { $key = "ICS2015"; $text = $value; // getting the size of the IV (Initialization Vector) belonging to a specific cipher / mode combination // Accept two params // 1: cipher (MCPYPT_ciphername constraint or the name of algorithms string) // 2: mode (MCPYPT_MODE_modename constraint or one of the following string - ecb, cbc, cfb, ofb, nofb or stream ) $iv_size = mcrypt_get_iv_size(MCRYPT_RIJNDAEL_256, MCRYPT_MODE_ECB); // Create an initialization vector(IV) from RANDOM source $iv = mcrypt_create_iv($iv_size, MCRYPT_RAND); // Encrypt plaintext with given params $crypttext = mcrypt_encrypt(MCRYPT_RIJNDAEL_256, $key, $text, MCRYPT_MODE_ECB, $iv); return base64_encode($crypttext); } $data = 'testdata'; $encData = encryptData($data); $decData = decryptData($encData); echo "$data : " + $data + "\r\n"; echo "$encData : " + $encData + "\r\n"; echo "$decData : " + $decData + "\r\n"; ?>
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