compressed ecdsa public keys

Matt Caswell matt at
Mon Jun 5 13:49:49 UTC 2023

On 05/06/2023 14:17, Robert Moskowitz wrote:
> is there a way in genkey to create an ECDSA P-256 in compressed format 
> (now that the patent is well expired)?

You can do it like this:

$ openssl ecparam -genkey -name P-256 -noout | openssl ec -conv_form 
compressed -out key.pem


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