tree cb4ad30b71f4e62b0f82f6d9be627d9d40bd05b1
parent a4dc1a17120058d1604cf9c4fc4586cd044105ee
author Alex Klyubin <klyubin@google.com> 1391211500 -0800
committer Alex Klyubin <klyubin@google.com> 1391211500 -0800

Assert PKCS#7 padding supported for AES and 3DES.

This tests that PKCS#7 padding for all Cipher transformations which
currently support PKCS#5 padding.

PKCS#5 padding is a special case of PKCS#7 padding. PKCS#5 padding
is defined specifically for 64 bit long blocks. However, lots of code
assumes that PKCS#5 for other block sizes works exactly like PKCS#7,
and thus uses PKCS#5 padding where PKCS#7 should actually be used
(e.g., with AES). Thus, we assert the assumption that PKCS#7 padding
works exactly like PKCS#5 padding.

Change-Id: I0ca8a952c67bc7aff172e22bd730378d41438067