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Only support 32-byte keys in ChaCha20{,Aligned}

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This commit is contained in:
Pieter Wuille
2022-09-21 17:39:48 -04:00
parent f21994a02e
commit 62ec713961
9 changed files with 46 additions and 53 deletions
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12
src/test/fuzz/crypto_diff_fuzz_chacha20.cpp
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@@ -277,10 +277,10 @@ FUZZ_TARGET(crypto_diff_fuzz_chacha20)
}
if (fuzzed_data_provider.ConsumeBool()) {
const std::vector<unsigned char> key = ConsumeFixedLengthByteVector(fuzzed_data_provider, fuzzed_data_provider.ConsumeIntegralInRange<size_t>(16, 32));
chacha20 = ChaCha20{key.data(), key.size()};
const std::vector<unsigned char> key = ConsumeFixedLengthByteVector(fuzzed_data_provider, 32);
chacha20 = ChaCha20{key.data()};
ECRYPT_keysetup(&ctx, key.data(), key.size() * 8, 0);
// ECRYPT_keysetup() doesn't set the counter and nonce to 0 while SetKey() does
// ECRYPT_keysetup() doesn't set the counter and nonce to 0 while SetKey32() does
uint8_t iv[8] = {0, 0, 0, 0, 0, 0, 0, 0};
ECRYPT_ivsetup(&ctx, iv);
}
@@ -289,10 +289,10 @@ FUZZ_TARGET(crypto_diff_fuzz_chacha20)
CallOneOf(
fuzzed_data_provider,
[&] {
const std::vector<unsigned char> key = ConsumeFixedLengthByteVector(fuzzed_data_provider, fuzzed_data_provider.ConsumeIntegralInRange<size_t>(16, 32));
chacha20.SetKey(key.data(), key.size());
const std::vector<unsigned char> key = ConsumeFixedLengthByteVector(fuzzed_data_provider, 32);
chacha20.SetKey32(key.data());
ECRYPT_keysetup(&ctx, key.data(), key.size() * 8, 0);
// ECRYPT_keysetup() doesn't set the counter and nonce to 0 while SetKey() does
// ECRYPT_keysetup() doesn't set the counter and nonce to 0 while SetKey32() does
uint8_t iv[8] = {0, 0, 0, 0, 0, 0, 0, 0};
ECRYPT_ivsetup(&ctx, iv);
},