oscrypto: initial integration (#9258)

Signed-off-by: David Korczynski <david@adalogics.com>

Signed-off-by: David Korczynski <david@adalogics.com>

projects/oscrypto/Dockerfile

@@ -0,0 +1,18 @@
+#!/usr/bin/python3
+# Copyright 2022 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-python
+RUN git clone --depth=1 https://github.com/wbond/oscrypto oscrypto
+COPY *.sh *py $SRC/
+WORKDIR $SRC/oscrypto

projects/oscrypto/build.sh

@@ -0,0 +1,22 @@
+#!/bin/bash -eu
+# Copyright 2022 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.
+#
+################################################################################
+pip3 install .
+
+# Build fuzzers in $OUT.
+for fuzzer in $(find $SRC -name 'fuzz_*.py'); do
+  compile_python_fuzzer $fuzzer
+done

projects/oscrypto/fuzz_asymmetric_load.py

@@ -0,0 +1,57 @@
+#!/usr/bin/python3
+# Copyright 2022 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.
+import sys
+import atheris
+
+from oscrypto import asymmetric, errors, backend
+
+
+def TestOneInput(data):
+  randfile = "/tmp/random.cert"
+  with open(randfile, "wb") as f:
+    f.write(data)
+
+  if not os.path.isfile(randfile):
+    return
+
+  try:
+    asymmetric.load_certificate(randfile)
+  except ValueError:
+    pass
+  except OSError:
+    pass
+
+  try:
+    asymmetric.load_private_key(randfile)
+  except ValueError:
+    pass
+  except OSError:
+    pass
+  
+  try:
+    asymmetric.load_public_key(randfile)
+  except ValueError:
+    pass
+  except OSError:
+    pass
+
+def main():
+  atheris.instrument_all()
+  atheris.Setup(sys.argv, TestOneInput, enable_python_coverage=True)
+  atheris.Fuzz()
+
+
+if __name__ == "__main__":
+  main()

projects/oscrypto/fuzz_keys.py

@@ -0,0 +1,37 @@
+#!/usr/bin/python3
+# Copyright 2022 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.
+import sys
+import atheris
+
+from oscrypto import keys
+
+
+def TestOneInput(data):
+  try:
+    keys.parse_pkcs12(data, b'123')
+  except ValueError:
+    pass
+  except OSError:
+    pass
+
+
+def main():
+  atheris.instrument_all()
+  atheris.Setup(sys.argv, TestOneInput, enable_python_coverage=True)
+  atheris.Fuzz()
+
+
+if __name__ == "__main__":
+  main()

projects/oscrypto/project.yaml

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+fuzzing_engines:
+- libfuzzer
+homepage: https://github.com/wbond/oscrypto
+language: python
+main_repo: https://github.com/wbond/oscrypto
+sanitizers:
+- address
+- undefined
+vendor_ccs:
+- david@adalogics.com