Padding Oracle Vulnerability in RSA Encryption

Hi, https://github.com/pagarme/pagarme-php/blob/master/lib/Pagarme/CardHashCommon.php This class has a confusing name. CardHash implies a cryptographic hash e.g. SHA256 is being used, but you're encrypting with RSA. Interestingly, you're not specifying the padding client-side, so you're encryptin...