Les Hazlewood – WindowsTechs.com

openssl x509 -sigopt algorithms and options list?

Posted on August 30, 2023 by Les Hazlewood

Per the OpenSSL 3.1 documentation for the x509 subcommand, the -sigopt flag allows one to pass signing options. The documentation for that flag currently states:

-sigopt nm:v
Pass options to the signature algorithm during sign operations… Continue reading openssl x509 -sigopt algorithms and options list?→

Is the JDK standard EC KeyPairGenerator suitable for use with both ECDSA and ECDH algorithms?

Posted on August 2, 2018 by Les Hazlewood

I’ve seen various references on the web for generating Elliptic Curve KeyPairs in Java, and the two most commonly referenced examples (unsurprisingly) use the JDK default provider and BouncyCastle.

But what confuses me is th… Continue reading Is the JDK standard EC KeyPairGenerator suitable for use with both ECDSA and ECDH algorithms?→