In some legacy code, I encountered RSA signature padding in the following format (hexadecimal):

0B BB BB BB BB BB BB ... BB BB <hash>

Is there a name for this simple type of RSA padding? I would think that the original developers got this design from something.

  • 7
    $\begingroup$ This looks vaguely similar to ANSI X9.31 padding, except that the first byte in X9.31 padding is 6B instead of 0B, and the last one is BA. $\endgroup$ – Ilmari Karonen Jun 14 '16 at 23:39
  • 4
    $\begingroup$ Although I don't know the background of the legacy code, I think you could well be assuming too much. $\endgroup$ – Maarten Bodewes Jun 15 '16 at 9:44

Your Answer

By clicking “Post Your Answer”, you agree to our terms of service, privacy policy and cookie policy

Browse other questions tagged or ask your own question.