Re: RC5 Patent Awarded

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Steve Schear (schear@lvdi.net)
Mon, 9 Mar 1998 12:34:57 -0800

At 1:26 AM -0800 3/9/98, Bill Stewart wrote:
>At 05:24 PM 3/9/98 +1000, Eric Young wrote:
>>
>>On Sun, 8 Mar 1998, Bruce Schneier wrote:
>>> Patent No 5,724,428 issued on 3 March 1998 to Rivest on "Block
>>> Encryption Algorithm With Data Dependent Rotation."
>>
>>Thats a pity. For the better known block ciphers, it is very fast on
>>the Penitum pro/Pentium 2 architecture.
>...
>>Looks like CAST-128 will probably be it, with the option of RC5-32/12 for
>>non-USA people.
>
>It's not clear that RC5 will be a legal option for non-USA people.
>Some algorithms, like RSA, are unpatentable because they're disclosed
>to the public before the patent applications are made,
>but I don't know where RSA* Inc. has applied for patents -
>they may be in queue in Australia and Europe, or they may not.

It was my understanding that SW patents weren't recognized in Australia.

--Steve

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The following archive was created by hippie-mail 7.98617-22 on Fri Aug 21 1998 - 17:15:55 ADT