error in php crypt
i use such f-n to encrypt\decrypt
<?
//Encrypt Function
function mc_encrypt($encrypt, $mc_key) {
$iv = mcrypt_create_iv(mcrypt_get_iv_size(MCRYPT_RIJNDAEL_256, MCRYPT_MODE_ECB), MCRYPT_RAND);
$passcrypt = trim(mcrypt_encrypt(MCRYPT_RIJNDAEL_256, $mc_key, trim($encrypt), MCRYPT_MODE_ECB, $iv));
$encode = base64_encode($passcrypt);
return $encode;
}
// Decrypt Function
function mc_decrypt($decrypt, $mc_key) {
$decoded = base64_decode($decrypt);
$iv = mcrypt_create_iv(mcrypt_get_iv_size(MCRYPT_RIJNDAEL_256, MCRYPT_MODE_ECB), MCRYPT_RAND);
$decrypted = trim(mcrypt_decrypt(MCRYPT_RIJNDAEL_256, $mc_key, trim($decoded), MCRYPT_MODE_ECB, $iv));
return $decrypted;
}
?>
if i call mc_encrypt('test', 'pass') all 开发者_Go百科decrypts ok, but if i call mc_encrypt('test=value', 'pass') i can't decrypt. why? and what must i do?
You should tell us what happens, i.e. what code you call, what you expect, and what comes out. We cannot guess what "I can't decrypt" means.
I can give you one suggestion already though:
$passcrypt = trim(mcrypt_encrypt(
MCRYPT_RIJNDAEL_256, $mc_key, trim($encrypt), MCRYPT_MODE_ECB, $iv));
Don't mess with the input data [trim($encrypt)
]. If the caller wants to trim the string, leave it to them to do it. Otherwise, if your input string has whitespace to trim, you will end up encrypting a different string than was passed in. That can only end in tears.
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