search for: engine_process_add

Engine keys are private key files which are only understood by openssl external engines. ?The problem is they can't be loaded with the usual openssl methods, they have to be loaded via ENGINE_load_private_key(). ?Because they're files, they fit well into openssh pub/private file structure, so they're not very appropriately handled by the pkcs11 interface because it assumes the private

...; + death = monotime() + seconds; + break; + case SSH_AGENT_CONSTRAIN_CONFIRM: + confirm = 1; + break; + default: + error("%s: Unknown constraint type %d", __func__, type); + goto send; + } + } + if (lifetime && !death) + death = monotime() + lifetime; + + if ((r = engine_process_add(engine, file, pin, &k)) < 0) + goto send; + + if (sshkey_load_public(file, &kp, &comment) < 0) + comment = xstrdup(file); + else + sshkey_free(kp); + + r = SSH_AGENT_SUCCESS; + if (lookup_identity(k) == NULL) { + id = xcalloc(1, sizeof(Identity)); + id->key = k; + id->...

I've architected this in a way that looks future proof at least to the openssl provider transition. What will happen in openssl 3.0.0 is that providers become active and will accept keys via URI. The current file mechanisms will still be available but internally it will become a file URI. To support the provider interface, openssl will have to accept keys by URI instead of file and may