1 /*
2  *  Copyright (c) 2019 The WebRTC project authors. All Rights Reserved.
3  *
4  *  Use of this source code is governed by a BSD-style license
5  *  that can be found in the LICENSE file in the root of the source
6  *  tree. An additional intellectual property rights grant can be found
7  *  in the file PATENTS.  All contributing project authors may
8  *  be found in the AUTHORS file in the root of the source tree.
9  */
10 
11 #include <stddef.h>
12 #include <stdint.h>
13 
14 #include <string>
15 
16 #include "rtc_base/ssl_certificate.h"
17 #include "rtc_base/string_encode.h"
18 
19 namespace webrtc {
20 
FuzzOneInput(const uint8_t * data,size_t size)21 void FuzzOneInput(const uint8_t* data, size_t size) {
22   std::string pem_certificate(reinterpret_cast<const char*>(data), size);
23 
24   std::unique_ptr<rtc::SSLCertificate> cert =
25       rtc::SSLCertificate::FromPEMString(pem_certificate);
26 
27   if (cert == nullptr) {
28     return;
29   }
30 
31   cert->Clone();
32   cert->GetStats();
33   cert->ToPEMString();
34   cert->CertificateExpirationTime();
35 
36   std::string algorithm;
37   cert->GetSignatureDigestAlgorithm(algorithm);
38 
39   unsigned char digest[rtc::MessageDigest::kMaxSize];
40   size_t digest_len;
41   cert->ComputeDigest(algorithm, digest, rtc::MessageDigest::kMaxSize,
42                       &digest_len);
43 
44   rtc::Buffer der_buffer;
45   cert->ToDER(&der_buffer);
46 }
47 
48 }  // namespace webrtc
49