mirror of https://github.com/google/oss-fuzz.git
52 lines
1.5 KiB
Python
52 lines
1.5 KiB
Python
#!/usr/bin/python3
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# Copyright 2022 Google LLC
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#
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# Licensed under the Apache License, Version 2.0 (the "License");
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# you may not use this file except in compliance with the License.
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# You may obtain a copy of the License at
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#
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# http://www.apache.org/licenses/LICENSE-2.0
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#
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# Unless required by applicable law or agreed to in writing, software
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# distributed under the License is distributed on an "AS IS" BASIS,
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# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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# See the License for the specific language governing permissions and
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# limitations under the License.
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import sys
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import atheris
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with atheris.instrument_imports():
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from ellipticcurve import Ecdsa, Signature, PublicKey, PrivateKey
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@atheris.instrument_func
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def TestOneInput(input_bytes):
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fdp = atheris.FuzzedDataProvider(input_bytes)
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privateKey1 = PrivateKey()
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publicKey1 = privateKey1.publicKey()
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privateKeyPem = privateKey1.toPem()
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publicKeyPem = publicKey1.toPem()
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privateKey2 = PrivateKey.fromPem(privateKeyPem)
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publicKey2 = PublicKey.fromPem(publicKeyPem)
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message = fdp.ConsumeUnicode(sys.maxsize)
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signatureBase64 = Ecdsa.sign(message=message,
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privateKey=privateKey2).toBase64()
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signature = Signature.fromBase64(signatureBase64)
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assert(Ecdsa.verify(message=message, signature=signature, publicKey=publicKey2))
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def main():
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atheris.Setup(sys.argv, TestOneInput, enable_python_coverage=True)
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atheris.Fuzz()
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if __name__ == "__main__":
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main()
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