CODEWITHSUNDEEP
phpencryptionphpseclib3des
oentoro
oentoro

Reputation: 750

phpseclib zero byte padding

How to add zero byte padding in phpseclib with encryption method 3des in EBC mode?

Here my current code: 

$cipher = new TripleDES(TripleDES::MODE_ECB);
$cipher->setKey('1234567890ABCDEFGHIJKLMN');

Upvotes: 2

Views: 497

Answers (1)

oentoro
oentoro

Reputation: 750

Just figure it out:

  1. Disable padding: <hack

    $cipher->disablePadding();

  2. Manually pad message (depending on size here I used multiple of 8): <hack

    $message_padded = $urlencoded;
if (strlen($message_padded) % 8) {
    $message_padded = str_pad($message_padded,
        strlen($message_padded) + 8 - strlen($message_padded) % 8, "\0");
}

  3. encrypt: <hack

    $result = $cipher -> encrypt($message_padded);

Upvotes: 2

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