parse_data_equal
failed = !parse_data_equal(p, "shared_secret", &shared_secret,
failed = !parse_data_equal(p, "shared secret", &k,
failed = !parse_data_equal(p, "shared_secret", &shared_secret,
failed |= !parse_data_equal(p, "ciphertext", &ciphertext,
failed = !parse_data_equal(p, "private key", &private_key,
failed |= !parse_data_equal(p, "public key", &public_key,
failed = !parse_data_equal(p, "public key", &ek,
failed |= !parse_data_equal(p, "private key", &dk,
int parse_data_equal(struct parse *p, const char *descr, CBS *want,