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The following archive was created by hippie-mail 7.98617-22 on Sat Apr 10 1999 - 01:15:22
EKR (ekr@rtfm.com)
28 Oct 1998 06:20:21 -0800
Bill Stewart <bill.stewart@pobox.com> writes:
> Other people have commented that IDEA has patent problems.
> 3DES is slow, but everybody trusts it, so if you've got small enough data
> it's probably ok. There's the minor annoyance that 168-bit keys are
> longer than 160-bit SHA1 hashes, so you'll need to scrounge some bits :-)
X9.42 contains a quite nice key expansion transform that will
give you an arbitrary number of bits for the DH shared secret.
(Basically using the digest in counter mode.)
-Ekr
-- [Eric Rescorla ekr@rtfm.com]
The following archive was created by hippie-mail 7.98617-22 on Sat Apr 10 1999 - 01:15:22