// Copyright 2020 Google Inc.

//

// Licensed under the Apache License, Version 2.0 (the "License");

// you may not use this file except in compliance with the License.

// You may obtain a copy of the License at

//

//      http://www.apache.org/licenses/LICENSE-2.0

//

// Unless required by applicable law or agreed to in writing, software

// distributed under the License is distributed on an "AS IS" BASIS,

// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.

// See the License for the specific language governing permissions and

// limitations under the License.

//

////////////////////////////////////////////////////////////////////////////////

// This fuzz target fuzzes the same API as

// https://github.com/google/boringssl/blob/master/fuzz/pkcs12.cc, but it

// employs libprotobuf-mutator for structure-aware fuzzing.

#include <openssl/bytestring.h>

#include <openssl/evp.h>

#include <openssl/pkcs8.h>

#include <openssl/x509.h>

#include "asn1_pdu.pb.h"

#include "asn1_pdu_to_der.h"

#include "libprotobuf-mutator/src/libfuzzer/libfuzzer_macro.h"

DEFINE_PROTO_FUZZER(const asn1_pdu::PDU& asn1) {

  asn1_pdu::ASN1PDUToDER converter;

  std::vector<uint8_t> encoded = converter.PDUToDER(asn1);

  const uint8_t* buf = encoded.data();

  size_t len = encoded.size();

  bssl::UniquePtr<STACK_OF(X509)> certs(sk_X509_new_null());

  EVP_PKEY* key = nullptr;

  CBS cbs;

  CBS_init(&cbs, buf, len);

  PKCS12_get_key_and_certs(&key, certs.get(), &cbs, "foo");

  EVP_PKEY_free(key);

}