Re: [9fans] crypto licensing

["Devon H. O'Dell" <devon.odell@gmail.com>]

2007/5/10, don bailey <don.bailey@gmail.com>:
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> >> 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
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