pkcs7.cc (1663B)
1 /* This Source Code Form is subject to the terms of the Mozilla Public 2 * License, v. 2.0. If a copy of the MPL was not distributed with this 3 * file, You can obtain one at http://mozilla.org/MPL/2.0/. */ 4 5 #include <cstddef> 6 #include <cstdint> 7 8 #include "cert.h" 9 #include "nss_scoped_ptrs.h" 10 #include "prtime.h" 11 #include "prtypes.h" 12 #include "seccomon.h" 13 #include "utilrename.h" 14 15 #include "asn1/mutators.h" 16 #include "base/database.h" 17 #include "base/mutate.h" 18 19 extern "C" int LLVMFuzzerTestOneInput(const uint8_t *data, size_t size) { 20 static NSSDatabase db = NSSDatabase(); 21 22 ScopedCERTCertificate cert( 23 CERT_DecodeCertFromPackage((char *)data, (int)size)); 24 if (!cert) { 25 return 0; 26 } 27 28 SECCertificateUsage usage; 29 SECItem der; 30 31 (void)CERT_VerifyCertificateNow(CERT_GetDefaultCertDB(), cert.get(), PR_TRUE, 32 certificateUsageCheckAllUsages, nullptr, 33 &usage); 34 (void)CERT_VerifyCertName(cert.get(), "fuzz.host"); 35 (void)CERT_GetCertificateDer(cert.get(), &der); 36 37 ScopedSECKEYPublicKey pubk(CERT_ExtractPublicKey(cert.get())); 38 ScopedCERTCertList chain( 39 CERT_GetCertChainFromCert(cert.get(), PR_Now(), certUsageEmailSigner)); 40 41 CERTCertNicknames *patterns = CERT_GetValidDNSPatternsFromCert(cert.get()); 42 PORT_FreeArena(patterns ? patterns->arena : nullptr, PR_FALSE); 43 44 return 0; 45 } 46 47 extern "C" size_t LLVMFuzzerCustomMutator(uint8_t *data, size_t size, 48 size_t maxSize, unsigned int seed) { 49 return CustomMutate( 50 Mutators({ASN1Mutators::FlipConstructed, ASN1Mutators::ChangeType}), data, 51 size, maxSize, seed); 52 }