CentoOS openssl: Create a self-signed ECC certificate

Self-signed certificates and Elliptic Curve Cryptography

There are many reasons to self-sign SSL certificates, but we find them particularly useful for staging sites and in the early stages of a project. We have a three command guide to self-signing an SSL certificate if you aren’t interested in ECC.

If you also are interested in ECC, you may know that the main reason for using elliptic curves as the basis for communication over SSL is the small key size – where regular DSA would require 1024 bits, ECDSA (the elliptic-curve variant of DSA) would require about 160 bits. The computational power required for communication over ECDSA is also less.

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