oss-fuzz/projects/pycrypto/fuzz_hash.py

74 lines
1.4 KiB
Python

#!/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 atheris
import sys
with atheris.instrument_imports():
from Crypto.Hash import (
CMAC,
HMAC,
SHA224,
SHA256,
SHA384,
SHA512,
MD2,
MD4,
MD5,
RIPEMD160
)
from Crypto.Cipher import AES
@atheris.instrument_func
def TestOneInput(data):
fdp = atheris.FuzzedDataProvider(data)
hashes = [
SHA224,
SHA256,
SHA384,
SHA512,
MD2,
MD4,
MD5,
RIPEMD160
]
for f in hashes:
h = f.new()
h.update(data)
h.digest
h = HMAC.new(fdp.ConsumeBytes(9))
h.update(data)
h.digest
try:
cobj = CMAC.new(fdp.ConsumeBytes(16), ciphermod=AES)
cobj.update(data)
except ValueError as e:
if "Key cannot be the null string" not in str(e):
raise e
def main():
atheris.Setup(sys.argv, TestOneInput, enable_python_coverage=True)
atheris.Fuzz()
if __name__ == "__main__":
main()