CVS commit: src/sys/arch/x86/x86

["Taylor R Campbell" <riastradh%netbsd.org@localhost>]

Module Name:    src
Committed By:   riastradh
Date:           Sun Jun 14 23:20:15 UTC 2020

Modified Files:
        src/sys/arch/x86/x86: via_padlock.c

Log Message:
padlock(4): Don't use prev msg's last block as IV for next msg in CBC.

This violates the security contract of the CBC construction, which
requires that the IV be unpredictable in advance; an adaptive adversary
can exploit this to verify plaintext guesses.

XXX Compile-tested only.


To generate a diff of this commit:
cvs rdiff -u -r1.28 -r1.29 src/sys/arch/x86/x86/via_padlock.c

Please note that diffs are not public domain; they are subject to the
copyright notices on the relevant files.