[889] in cryptography@c2.net mail archive
Re: RFC 2144 on CAST-128 Encryption Algorithms (fwd)
daemon@ATHENA.MIT.EDU (Perry E. Metzger)
Thu May 22 14:48:19 1997
To: cryptography@c2.net
In-reply-to: Your message of "Thu, 22 May 1997 14:15:50 EDT."
<3.0.1.32.19970522141550.00deaaa0@pop3.pn.com>
Reply-To: perry@piermont.com
Date: Thu, 22 May 1997 14:46:45 -0400
From: "Perry E. Metzger" <perry@piermont.com>
Rodney Thayer writes:
> The Entrust folks were pushing CAST at the Memphis IETF. It also suddenly
> showed up as an IPsec option right after Memphis.
>
> It would be interesting to know if it's "safe". (and if it's fast and if
> you can get a copy in C and and and...)
CAST and CAST-128 are pro-forma patented but in fact NORTEL happily
lets everyone use them for free. (DES was patented in the same way,
btw.)
The CASTs are reportedly pretty good, though I've heard much less
analysis of -128 since it's newer.
Perry
