> On Aug 14, 2018, at 4:55 PM, Stephane van Hardeveld <stephane@xxxxxxxxxxxxxxx> wrote: > > If I would try this endeavour, what would be the best interface to set this? > For creation, use the EVP_PKEY type with the EVP_PKEY_CTX, and set > attributes there? You'll need a new EVP_PKEY type that is mostly like RSA, but specialized for OAEP. > Something like: > res = X509_set_pubkey(cert, contentKey); > EVP_DigestSignInit(ctx, &pkey_ctx, EVP_sha256(), NULL, contentKey); > EVP_PKEY_encrypt_init(pkey_ctx); > EVP_PKEY_CTX_set_rsa_padding(ctx, RSA_OAEP_PADDING); > EVP_PKEY_CTX_set_signature_md(pkey_ctx, EVP_sha256()); Nothing in EVP_PKEY_CTX has any effect on the key. The data flow is in the other direction. Different key types lead to different EVP_PKEY_CTX objects that are used to process data with that key. -- Viktor. -- openssl-users mailing list To unsubscribe: https://mta.openssl.org/mailman/listinfo/openssl-users