From mboxrd@z Thu Jan  1 00:00:00 1970
Message-ID: <9ab217670705101626v28598dddh81bbaca29e455455@mail.gmail.com>
Date: Thu, 10 May 2007 19:26:00 -0400
From: "Devon H. O'Dell" <devon.odell@gmail.com>
To: "Fans of the OS Plan 9 from Bell Labs" <9fans@cse.psu.edu>
Subject: Re: [9fans] crypto licensing
In-Reply-To: <4643A897.2040208@gmail.com>
MIME-Version: 1.0
Content-Type: text/plain; charset=ISO-8859-1; format=flowed
Content-Transfer-Encoding: 7bit
Content-Disposition: inline
References: <4643A4C2.90009@gmail.com>
	<9ab217670705101612r365df1abw2be7f99c021d1d30@mail.gmail.com>
	<4643A897.2040208@gmail.com>
Topicbox-Message-UUID: 63cbd9ee-ead2-11e9-9d60-3106f5b1d025

2007/5/10, don bailey <don.bailey@gmail.com>:
> -----BEGIN PGP SIGNED MESSAGE-----
> Hash: SHA1
>
> >> Not sure what you mean. You can freely use MD5, SHA, DES, DES3,
> >> Rijndael (AES), RSA, and even IDEA now (I believe the patent is gone)
> >> without obtaining licenses from any entities.
> >
>
> Right, that's what I understand but I can't *prove* it. Are there places
>   online where I can find a verified current status for algorithm
> specific licenses? Like, is there someplace that RSADSI says "yes, we've
> let go of MD5 and RSA for public use."?
>
> Any help or advice is appreciated. I'm a bit lost when it comes to
> legalese.

There is public domain code for MD5 and RSA in any case, and the
patents have expired on them. The USPTO would have more information on
the patents, and I know NIST has information about other ones. AES was
designed to be a fantastic, openly available cryptosystem.

--dho

> Don
>
> -----BEGIN PGP SIGNATURE-----
> Version: GnuPG v1.4.6 (GNU/Linux)
>
> iD8DBQFGQ6iXyWX0NBMJYAcRAgUkAJ9nyFc0cLoN7GgSlxPngE7y55EesgCfaekG
> BoA5nuXlhc8ZFd+dMYyhidk=
> =Ev1I
> -----END PGP SIGNATURE-----
>