Add a bunch of NSS ASN.1 fuzzers

testing/libfuzzer/fuzzers/nss/cert_certificate_fuzzer.cc

Index: testing/libfuzzer/fuzzers/nss/cert_certificate_fuzzer.cc
diff --git a/components/webcrypto/rsa_import_key_spki_fuzzer.cc b/testing/libfuzzer/fuzzers/nss/cert_certificate_fuzzer.cc
similarity index 50%
copy from components/webcrypto/rsa_import_key_spki_fuzzer.cc
copy to testing/libfuzzer/fuzzers/nss/cert_certificate_fuzzer.cc
index e91b1403738b8f35258a74895ab741f9c1ce4679..ce69f42292241b8bd1711cb172cac8eee9883395 100644
--- a/components/webcrypto/rsa_import_key_spki_fuzzer.cc
+++ b/testing/libfuzzer/fuzzers/nss/cert_certificate_fuzzer.cc
@@ -2,14 +2,18 @@
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
+#include <cert.h>
 #include <stddef.h>
 #include <stdint.h>
 
-#include "components/webcrypto/fuzzer_support.h"
+#include "testing/libfuzzer/fuzzers/nss/asn1_fuzzer_template.h"
 
 // Entry point for LibFuzzer.
 extern "C" int LLVMFuzzerTestOneInput(const uint8_t* data, size_t size) {
-  webcrypto::ImportRsaKeyFromDerFuzzData(data, size,
-                                         blink::WebCryptoKeyFormatSpki);
+  NSSFuzzOneInput<CERTCertificate, SEC_QuickDERDecodeItem>(
+      SEC_ASN1_GET(CERT_CertificateTemplate), data, size);
+  NSSFuzzOneInput<CERTCertificate, SEC_ASN1DecodeItem>(
+      SEC_ASN1_GET(CERT_CertificateTemplate), data, size);
+
   return 0;
 }