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57 lines
2 KiB
C++
57 lines
2 KiB
C++
/* Copyright (C) 2014 Wildfire Games.
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* This file is part of 0 A.D.
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*
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* 0 A.D. is free software: you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation, either version 2 of the License, or
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* (at your option) any later version.
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*
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* 0 A.D. is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with 0 A.D. If not, see <http://www.gnu.org/licenses/>.
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*/
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#include "lib/self_test.h"
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#include "third_party/encryption/sha.h"
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class TestEncryptionSha256 : public CxxTest::TestSuite
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{
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public:
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void test_sha256()
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{
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// Test two hashes of the same variable are equal.
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SHA256 hash1, hash2;
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unsigned char finalHash1A[SHA_DIGEST_SIZE], finalHash1B[SHA_DIGEST_SIZE];
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const char cStringToHash1[] = "Hash me!";
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hash1.update(cStringToHash1, sizeof(cStringToHash1));
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hash2.update(cStringToHash1, sizeof(cStringToHash1));
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hash1.finish(finalHash1A);
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hash2.finish(finalHash1B);
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TS_ASSERT_EQUALS(*finalHash1A, *finalHash1B);
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// Test that the output isn't the same as the input.
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TS_ASSERT_DIFFERS(*cStringToHash1, *finalHash1A)
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// Test if updating the hash multiple times changes the
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// original hashes but still results in them being equal.
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unsigned char finalHash2A[SHA_DIGEST_SIZE], finalHash2B[SHA_DIGEST_SIZE];
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const char cStringToHash2[] = "Hash me too please!";
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hash1.update(cStringToHash2, sizeof(cStringToHash2));
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hash2.update(cStringToHash2, sizeof(cStringToHash2));
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hash1.finish(finalHash2A);
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hash2.finish(finalHash2B);
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TS_ASSERT_EQUALS(*finalHash2A, *finalHash2B);
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// Make sure the updated hash is actually different
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// compared to the original hash.
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TS_ASSERT_DIFFERS(*finalHash1A, *finalHash2A);
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TS_ASSERT_DIFFERS(*finalHash1B, *finalHash2B);
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}
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};
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