ossl_x509_pubkey_hash
ikeyid = ossl_x509_pubkey_hash(pubkey);
return ossl_x509_pubkey_hash(ctx->subject_cert != NULL ? ctx->subject_cert->cert_info.key : ctx->subject_req->req_info.pubkey);
ASN1_OCTET_STRING *ossl_x509_pubkey_hash(X509_PUBKEY *pubkey);