1063 	struct ssh_digest_ctx *hashctx = NULL;  in derive_key()  local
1078 	if ((hashctx = ssh_digest_start(kex->hash_alg)) == NULL ||  in derive_key()
1079 	    ssh_digest_update_buffer(hashctx, shared_secret) != 0 ||  in derive_key()
1080 	    ssh_digest_update(hashctx, hash, hashlen) != 0 ||  in derive_key()
1081 	    ssh_digest_update(hashctx, &c, 1) != 0 ||  in derive_key()
1082 	    ssh_digest_update_buffer(hashctx, kex->session_id) != 0 ||  in derive_key()
1083 	    ssh_digest_final(hashctx, digest, mdsz) != 0) {  in derive_key()
1088 	ssh_digest_free(hashctx);  in derive_key()
1089 	hashctx = NULL;  in derive_key()
1097 		if ((hashctx = ssh_digest_start(kex->hash_alg)) == NULL ||  in derive_key()
1098 		    ssh_digest_update_buffer(hashctx, shared_secret) != 0 ||  in derive_key()
1099 		    ssh_digest_update(hashctx, hash, hashlen) != 0 ||  in derive_key()
1100 		    ssh_digest_update(hashctx, digest, have) != 0 ||  in derive_key()
1101 		    ssh_digest_final(hashctx, digest + have, mdsz) != 0) {  in derive_key()
1106 		ssh_digest_free(hashctx);  in derive_key()
1107 		hashctx = NULL;  in derive_key()
1118 	ssh_digest_free(hashctx);  in derive_key()