On Sep 17, 2009, at 1:20 AM, Peter Gutmann wrote:
"Kevin W. Wall" <kevin.w.w...@gmail.com> writes:
(Obviously some of these padding schemes such as OAEP are not
suitable with
symmetric ciphers. Or at least I don't think they are.)
You'd be surprised at what JCE developers will implement just
because they
can, and what therefore gets used by application developers. I've
seen
RSA-CBC used on more than one occasion.
(No, that's not a typo, RSA in CBC mode. The app developers
wondered why it
was so slow).
Interesting. It sounds as if the JCE developers have gone from one
extreme to another. I no longer remember the details, but a number of
years back, in a project I was involved with, we needed to implement
some particular (sane) combination of a cipher and a mode. JCE at the
time had a fixed list of combinations it was willing to let you use;
ours wasn't on that list. "ECB" wasn't an accepted mode, so it wasn't
easy to build your own mode out of what the API provided.
-- Jerry
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