Fuzzing: add more fuzzers

pkg/signer/fuzz_test.go

@@ -0,0 +1,41 @@
+/*
+Copyright The Rekor Authors.
+
+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.
+*/
+
+package signer
+
+import (
+	"os"
+	"testing"
+)
+
+func FuzzNewFile(f *testing.F) {
+	f.Fuzz(func(t *testing.T, keyData []byte, keyPass string) {
+		keyPath, err := os.CreateTemp(t.TempDir(), "keyfile")
+		if err != nil {
+			t.Skip()
+		}
+		defer func() {
+			keyPath.Close()
+			os.Remove(keyPath.Name())
+		}()
+		_, err = keyPath.Write(keyData)
+		if err != nil {
+			t.Skip()
+		}
+
+		_, _ = NewFile(keyPath.Name(), keyPass)
+	})
+}

pkg/types/cose/fuzz_test.go

@@ -0,0 +1,32 @@
+//
+// Copyright 2022 The Sigstore Authors.
+//
+// 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.
+
+package cose
+
+import (
+	"context"
+	"testing"
+
+	"github.com/sigstore/rekor/pkg/types"
+)
+
+func FuzzCreateProposedEntry(f *testing.F) {
+	f.Fuzz(func(t *testing.T, version string) {
+		ctx := context.Background()
+		brt := New()
+		props := types.ArtifactProperties{}
+		_, _ = brt.CreateProposedEntry(ctx, version, props)
+	})
+}

pkg/types/jar/fuzz_test.go

@@ -0,0 +1,34 @@
+//
+// Copyright 2022 The Sigstore Authors.
+//
+// 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.
+
+package jar
+
+import (
+	"testing"
+
+	"github.com/sigstore/rekor/pkg/generated/models"
+)
+
+func FuzzJarUnmarshal(f *testing.F) {
+	f.Fuzz(func(t *testing.T, raw []byte) {
+		m := &models.Jar{}
+		err := m.UnmarshalJSON(raw)
+		if err != nil {
+			t.Skip()
+		}
+		brt := New()
+		brt.UnmarshalEntry(m)
+	})
+}