pynacl: initial integration (#9373)

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

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

projects/pynacl/Dockerfile

@@ -0,0 +1,20 @@
+#!/usr/bin/python3
+# Copyright 2023 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 apt-get install -y libffi-dev mercurial
+RUN pip3 install --upgrade pip cffi
+RUN git clone https://github.com/pyca/pynacl pynacl
+COPY *.sh *py $SRC/
+WORKDIR $SRC/pynacl

projects/pynacl/build.sh

@@ -0,0 +1,22 @@
+#!/bin/bash -eu
+# Copyright 2023 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.
+#
+################################################################################
+python3 ./setup.py install
+
+# Build fuzzers in $OUT.
+for fuzzer in $(find $SRC -name 'fuzz_*.py'); do
+  compile_python_fuzzer $fuzzer --hidden-import=cffi
+done

projects/pynacl/fuzz_hash.py

@@ -0,0 +1,50 @@
+#!/usr/bin/python3
+# Copyright 2023 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
+
+import nacl.hash
+import nacl.pwhash
+
+
+def TestOneInput(data):
+  fdp = atheris.FuzzedDataProvider(data)
+
+  nacl.hash.sha256(fdp.ConsumeBytes(sys.maxsize))
+  nacl.hash.sha512(fdp.ConsumeBytes(sys.maxsize))
+  nacl.hash.generichash(fdp.ConsumeBytes(sys.maxsize), key=fdp.ConsumeBytes(32))
+
+  try:
+    nacl.pwhash.kdf_scryptsalsa208sha256(
+      32,
+      fdp.ConsumeBytes(fdp.ConsumeIntInRange(10, 1000)),
+      fdp.ConsumeBytes(32),
+      2000,
+      (2**20)*100
+    )
+  except ValueError:
+    pass
+
+  nacl.pwhash.scryptsalsa208sha256_str(fdp.ConsumeBytes(1024))
+
+
+def main():
+  atheris.instrument_all()
+  atheris.Setup(sys.argv, TestOneInput)
+  atheris.Fuzz()
+
+
+if __name__ == "__main__":
+  main()

projects/pynacl/fuzz_signing.py

@@ -0,0 +1,41 @@
+#!/usr/bin/python3
+# Copyright 2023 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
+
+import nacl.hash
+import nacl.pwhash
+
+from nacl.bindings import crypto_sign_PUBLICKEYBYTES
+from nacl.signing import SigningKey, VerifyKey
+
+
+def TestOneInput(data):
+  skey = SigningKey.generate()
+  signature = skey.sign(data)
+  try:
+    VerifyKey(data)
+  except ValueError:
+    pass
+
+
+def main():
+  atheris.instrument_all()
+  atheris.Setup(sys.argv, TestOneInput)
+  atheris.Fuzz()
+
+
+if __name__ == "__main__":
+  main()

projects/pynacl/project.yaml

@@ -0,0 +1,10 @@
+fuzzing_engines:
+- libfuzzer
+homepage: https://github.com/pyca/pynacl
+language: python
+main_repo: https://github.com/pyca/pynacl
+sanitizers:
+- address
+- undefined
+vendor_ccs:
+- david@adalogics.com