453 static enum err generate_new_ssn(struct context *c)  in generate_new_ssn()  argument
455 	if (NULL == c) {  in generate_new_ssn()
459 	c->sc.ssn++;  in generate_new_ssn()
460 	if (!c->cc.fresh_master_secret_salt) {  in generate_new_ssn()
462 		struct nvm_key_t nvm_key = { .sender_id = c->sc.sender_id,  in generate_new_ssn()
463 					     .recipient_id = c->rc.recipient_id,  in generate_new_ssn()
464 					     .id_context = c->cc.id_context };  in generate_new_ssn()
466 			(ECHO_SYNCHRONIZED != c->rrc.echo_state_machine);  in generate_new_ssn()
467 		return ssn_store_in_nvm(&nvm_key, c->sc.ssn,  in generate_new_ssn()
508 				struct context *c,  in encrypt_wrapper()  argument
526 	bool use_new_piv = needs_new_piv(msg_type, c->rrc.echo_state_machine);  in encrypt_wrapper()
528 		TRY(ssn2piv(c->sc.ssn, &new_piv));  in encrypt_wrapper()
529 		TRY(generate_new_ssn(c));  in encrypt_wrapper()
530 		TRY(create_nonce(&c->sc.sender_id, &new_piv, &c->cc.common_iv,  in encrypt_wrapper()
535 		kid = c->sc.sender_id;  in encrypt_wrapper()
536 		kid_context = c->cc.id_context;  in encrypt_wrapper()
538 		nonce = c->rrc.nonce;  in encrypt_wrapper()
551 					     c->rrc.interactions, &request_piv,  in encrypt_wrapper()
553 	TRY(create_aad(NULL, 0, c->cc.aead_alg, &request_kid, &request_piv,  in encrypt_wrapper()
558 				&c->sc.sender_key));  in encrypt_wrapper()
562 		TRY(byte_array_cpy(&c->rrc.nonce, &nonce, NONCE_LEN));  in encrypt_wrapper()
571 					       c->rrc.interactions,  in encrypt_wrapper()
592 		     struct context *c)  in coap2oscore()  argument
605 	TRY(check_context_freshness(c));  in coap2oscore()
651 	if (ECHO_VERIFY == c->rrc.echo_state_machine) {  in coap2oscore()
653 		TRY(cache_echo_val(&c->rrc.echo_opt_val, e_options,  in coap2oscore()
659 	TRY(encrypt_wrapper(&plaintext, &ciphertext, c, &o_coap_pkt,  in coap2oscore()