[Cryptography] Large companies sued for using Elliptic Curve TLS?

Tony Arcieri bascule at gmail.com
Wed Dec 2 14:26:43 EST 2015

On Tue, Dec 1, 2015 at 5:41 PM, Phillip Hallam-Baker <phill at hallambaker.com>

> In this particular instance, the patent can be read as describing El Gamal
> signatures which are actually used in ECC certificates since DSA is a
> variation of El Gamal. But that approach falls foul of prior art because El
> Gamal and DSA were both published long before the patent was issued.

See also the Schnorr signature patent. DSA is something of a hybrid of El
Gamal and Schnorr, and Schnorr insisted DSA violated his patent.

The signature algorithm to be adopted by the CFRG will be a Schnorr variant.

Tony Arcieri
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