[cryptography] ECDSA - patent free?

James A. Donald jamesd at echeque.com
Thu Nov 10 16:13:47 EST 2011

On 2011-11-11 6:11 AM, coderman wrote:
> ... or wait for all relevant patents to expire. note that a sufficient
> period of time may extend beyond expiration for some safe duration of
> months/years.

All the routinely used ECC technology is more than fifteen years old. 
What stops them from continuing to endless repatent the same stuff using 
slightly different words?

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