mcrypt_encrypt在php和ios中的不同结果

Question

I've been trying to encrypt something in PHP 5.2 like so:

$key = "12345678901234567890123456789012345678901234567890123456";//56 chars
$iv = "12345678";//8 chars
$text = "Nick is pooping.";//16 chars

$enc = mcrypt_encrypt("blowfish", $key, $text, "cbc", $iv);

var_dump($enc); echo "<br>";
var_dump(base64_encode($enc)); echo "<br>";

This is the output:

string(16) "–±–%ê„zÆtȾ R" 
string(24) "lrGWJeofhHrGdMi+BiBSHQ==" 

I'm using this on my iOS side, with this code:

Blowfish* _blowfish = [BlowfishAlgorithm new];
[_blowfish setMode:[BlowfishAlorithm buildModeEnum:@"CBC"]];
[_blowfish setKey:@"12345678901234567890123456789012345678901234567890123456"];
[_blowfish setInitVector:@"12345678"];
[_blowfish setupKey];
NSLog(@"%@",[_blowfish encrypt:@"Nick is pooping."]);

This outputs:

3132333435363738f61e0c4683e55fe061f1951e7a8182be

base64_encode doesn't do the trick in php, and I can't figure out how to match them so that they output the same. :(

Answer 1

To remove these null characters, you can use the rtrim function. After running the decrypted output through that it should be equal.

Please refer to this link for more information:

https://stackoverflow.com/a/15352155/516512