On 04/12/2019 11:22, Angus Robertson - Magenta Systems Ltd wrote: >>> It seems the EVP_PKEY_RSA_PSS addition was only committed 28th >>> October 2019, so need to wait for 1.1.1e, hopefully real soon... >> >> Ah, that explains it! > > Now tested with 1.1.1e-dev and I can generate a JWK from an RSA-PSS key. > > > Since JWK is for signing, I also tried to support ED25519 private keys, > but get: > > error:0D0A40A7:asn1 encoding routines:i2d_PublicKey:unsupported public > key type > > A binary public key is all I need for JWK, simple format. A search of > master suggests nothing yet. i2d_PublicKey() serializes a public key using key specific (legacy) formats where available. There isn't a key specific format for Ed25519. It just uses the generic SubjectPublicKeyInfo format. You need to use i2d_PUBKEY() for that. Arguably we should make i2d_PublicKey() fallback to i2d_PUBKEY() where no key specific format is available. Matt
