fuzz: added PKCS#8 private key parser

1 files changed, 54 insertions, 0 deletions

diff --git a/devel/fuzz/gnutls_pkcs8_key_parser_fuzzer.cc b/devel/fuzz/gnutls_pkcs8_key_parser_fuzzer.cc
new file mode 100644
index 0000000000..6111764bd5
--- /dev/null
+++ b/devel/fuzz/gnutls_pkcs8_key_parser_fuzzer.cc
@@ -0,0 +1,54 @@
+/*
+# Copyright 2016 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.
+#
+################################################################################
+*/
+
+#include <assert.h>
+#include <stdint.h>
+
+#include <gnutls/gnutls.h>
+#include <gnutls/x509.h>
+
+
+extern "C" int LLVMFuzzerTestOneInput(const uint8_t *data, size_t size) {
+    gnutls_datum_t raw;
+    gnutls_x509_privkey_t key;
+    gnutls_datum_t out;
+    int ret;
+
+    raw.data = (unsigned char *)data;
+    raw.size = size;
+
+    ret = gnutls_x509_privkey_init(&key);
+    assert(ret >= 0);
+
+    ret = gnutls_x509_privkey_import_pkcs8(key, &raw, GNUTLS_X509_FMT_DER, "password", 0);
+    if (ret < 0) {
+        goto cleanup;
+    }
+
+    /* If properly loaded, try to re-export */
+    ret = gnutls_x509_privkey_export2(key, GNUTLS_X509_FMT_DER, &out);
+    if (ret < 0) {
+        goto cleanup;
+    }
+
+    gnutls_free(out.data);
+
+ cleanup:
+    gnutls_x509_privkey_deinit(key);
+    return 0;
+}