[Swan-commit] Changes to ref refs/heads/master

[Andrew Cagney]

New commits:
commit 611f6f769b789999387d72d5379e9ca98e86ffa8
Author: Andrew Cagney <cagney at gnu.org>
Date:   Sun Nov 27 21:15:35 2016 -0500

    include: add struct encrypt_desc.key_bit_lengths[]
    
    A zero-terminated descending-order array of valid encrypt bit lengths.
    Define explicitly using simple constants rather than obtuse macros.
    
    Assert that the key lengths known to encrypt_desc (keyminlen,
    keydeflen, keymaxlen) are found in the array.
    
    Long ago algorithms would allow arbitrary variable length keys, that
    is no longer true.  Instead only a small fixed set of key lengths is
    allowed.