Hello,

I am currently looking into what configuration of openssl that would be patent infringement safe world wide. This is what come up with so far.

IDEA should be left out, Ascom holds a patent for this algorithm.
RC5 should be left out. RSA security holds a patent for this algorithm

MD2, MD4 and MD5 are ok to use. RSA Security has published an IPR disclosure on www.ietf.org stating that these algorithms can be made, used and sold without any license from RSA Security Inc.

Is RSA ok to include? The RSA patent has expired in the US, but what about other countries?

What about eliptic curves? I have found some discussions on emailing lists about Sun's eliptic curve contribution to Openssl and possible IPR issues? What is the status?

Are there other patents or other IPR issues that needs to be considered?

Regards Roger

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