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Truetype	GeoGrid	OpenGL	RSA & Co	iPIX vs Dersch

RSA & Schnorr retardent le Commerce Électronique

Les algorithmes cryoptographique ont empeché longtemps la diffusion de techniques de signature digitale etc. Il a etait difficile d'etablir des alternatives au méthodes brevetés autour de RSA. Les alternatives ont subit des attaques juridiques par des professionaux exploitateurs de brevets comme PKP, qui affirmaient que tout algorithmes crypto tombe sous ses revendication autour de RSA et d'autres brevets dans leur portfolio, surtout celui du professeur allemand Schnorr.

name	US patent number
Diffie-Hellman	4,200,770
Hellman-Merkle	4,218,582
RSA	4,405,829
Hellman-Pohlig	4,424,414
Schnorr	4,995,082

cyberlaw-rsa

CyberLaw Presents: The RSA Algorithm & The RSA Patent: Patent lawyers analyse the weaknesses of the RSA patent. On the one hand side, it can be attacked as non-statutory, because the only way it goes beyond a pure algorithm is by claiming standard computer implementations of this algorithm, which is, at least according to the law, not permissible. On the other hand side, the RSA algorithm is very similar to a previously known formula. The authors find that the patent has done disproportionate harm, partially because its strength was over-estimated.
(The Crypto Patent Challenge : Collection of Schnorr and PKP related court action documents by Greg Aharonian)
(Public Key Patent Cases -- Roger Shlafly on his successful defense against infringement charges by RSADSI)
(RMS on crypto patent questions)
(Prof. Dr. C.P. Schnorr's Generic Home Page)
Google Search for Schnorr Patent