Add cosign project to oss-fuzz (#5415)

projects/cosign/Dockerfile

@@ -0,0 +1,21 @@
+# Copyright 2021 Google LLC
+#
+# 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.
+#
+################################################################################
+
+FROM gcr.io/oss-fuzz-base/base-builder
+RUN git clone --depth 1 https://github.com/sigstore/cosign
+
+COPY build.sh $SRC/
+WORKDIR $SRC/cosign

projects/cosign/build.sh

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+#!/bin/bash -eu
+# Copyright 2021 Google LLC
+#
+# 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.
+#
+################################################################################
+
+
+compile_go_fuzzer github.com/sigstore/cosign/test FuzzGetPassword fuzz_getPassword gofuzz

projects/cosign/project.yaml

@@ -0,0 +1,8 @@
+homepage: https://sigstore.dev/
+language: go 
+primary_contact: "priyawadhwa@google.com"
+main_repo: "https://github.com/sigstore/cosign"
+fuzzing_engines:
+  - libfuzzer
+sanitizers:
+  - address