20 CHKDF_HMAC_SHA256_L32 hkdf_hmac_sha256_l32(initial_key_material.data(), initial_key_material.size(), fuzzed_data_provider.ConsumeRandomLengthString(1024));
22 std::vector<uint8_t> out(32);
23 hkdf_hmac_sha256_l32.
Expand32(fuzzed_data_provider.ConsumeRandomLengthString(128), out.data());