48 lines
1.5 KiB
C++
48 lines
1.5 KiB
C++
// Copyright 2020 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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#include "AES.c"
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#include "common.h"
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#include <fuzzer/FuzzedDataProvider.h>
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extern "C" int LLVMFuzzerTestOneInput(const uint8_t *data, size_t size) {
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if (!size)
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return 0;
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enum KeySize { AES128 = 16, AES192 = 24, AES256 = 32, kMaxValue = AES256 };
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FuzzedDataProvider stream(data, size);
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const KeySize keySize = stream.ConsumeEnum<KeySize>();
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if (stream.remaining_bytes() < keySize)
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return 0;
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std::vector<uint8_t> keyBuf = stream.ConsumeBytes<uint8_t>(keySize);
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const uint8_t *key = keyBuf.data();
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BlockBase *state;
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if (AES_start_operation(key, keySize, reinterpret_cast<AES_State **>(&state)))
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return 0;
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uint8_t outEnc[size];
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uint8_t outDec[size];
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AES_encrypt(reinterpret_cast<BlockBase *>(state), data, outEnc, size);
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AES_decrypt(reinterpret_cast<BlockBase *>(state), data, outDec, size);
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AES_stop_operation(reinterpret_cast<BlockBase *>(state));
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return 0;
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}
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