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fclblowfish's Issues

How to work with PHP

Hi There,

I have the encryption and decryption code in PHP working fine, but I cannot decrypt or encrypt in iOS using this lib.

My encryption and decryption code in PHP are:

Decrypt

$initializationVectorSize = mcrypt_get_iv_size(MCRYPT_BLOWFISH, 'ecb');
$initializationVector = mcrypt_create_iv($initializationVectorSize, MCRYPT_RAND);

$valor = $_GET['v'];
$valor = base64_decode($valor);
$valor = mcrypt_decrypt(MCRYPT_BLOWFISH, 'mYk3yS3c', $valor, 'ecb', $initializationVector);
$valor = trim($valor, " \x00..\x1F");
print 'Valor: ' . $valor;

Encrypt

$initializationVectorSize = mcrypt_get_iv_size(MCRYPT_BLOWFISH, 'ecb');
$initializationVector = mcrypt_create_iv($initializationVectorSize, MCRYPT_RAND);

$v = mcrypt_encrypt(MCRYPT_BLOWFISH, 'mYk3yS3c', $v, 'ecb', $initializationVector);
print base64_encode($v);

one example is the following encrypted string:
cCVGRSYKtjQhyaLfn+lumQ==

In my PHP code it decrypts fines, with the result "21988882121" (without quotes).

But in my decryption code on iOS, I don't know how to properly initialize the vector following the PHP standard.

FclBlowfish *bf = [[FclBlowfish alloc] init];
bf.Key = @"mYk3yS3c";
bf.IV = @"";
[bf prepare];

NSLog(@"decrypt %@", [bf decrypt:@"d5NXWox77nXb0InI+zP98Q==" withMode:modeEBC withPadding:paddingZero]);

Any help is much appreciated!

Thanks!

crash in removePad Method

  • (NSString *)removePad:(NSString *)plain
    {
    //need add code
    if (![plain length])
    {
    return nil;
    }
    NSUInteger paddedlen = [plain characterAtIndex:[plain length] - 1]; //When plain = @"" shows crash

    .......
    }

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