I want to implement a function that validates a public key produced by either ed25519 or ed448 – according to the tests in NIST SP 800-186 appendix D.1.3 There doesn’t appear to be any helper functions to assist in this – at least for Edwards curves. I have implemented something for Weierstrass curves – and have used helper functions to obtain the curve/group, domain parameters, EC_POINT_is_at_infinity() etc etc – but nothing for Edwards. All I can see is EVCP_PKEY_new_raw_public_key() and EVCP_PKEY_get_raw_public_key() – and that does really help in what I’m trying to do. John |
