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Fixed ChaCha code

pull/157/head
DevJPM 2016-04-26 21:55:33 +02:00
parent 275afb4955
commit 7ae41dd708
1 changed files with 8 additions and 2 deletions
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10
chacha.cpp
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@ -29,7 +29,11 @@ void ChaCha_TestInstantiations()
void ChaCha_Policy::CipherSetKey(const NameValuePairs &params, const byte *key, size_t length)
{
CRYPTOPP_UNUSED(params);
m_rounds = params.GetIntValueWithDefault(Name::Rounds(), 20);
if (!(m_rounds == 8 || m_rounds == 12 || m_rounds == 20))
throw InvalidRounds(ChaCha::StaticAlgorithmName(), m_rounds);
assert(length == 16 || length == 32);
// "expand 16-byte k" or "expand 32-byte k"
@ -58,7 +62,7 @@ void ChaCha_Policy::CipherResynchronize(byte *keystreamBuffer, const byte *IV, s
void ChaCha_Policy::SeekToIteration(lword iterationCount)
{
CRYPTOPP_UNUSED(iterationCount);
throw NotImplemented(std::string(ChaCha_Info<R>::StaticAlgorithmName()) + ": SeekToIteration is not yet implemented");
throw NotImplemented(std::string(ChaCha_Info::StaticAlgorithmName()) + ": SeekToIteration is not yet implemented");
// TODO: these were Salsa20, and Wei re-arranged the state array for SSE2 operations.
// If we can generate some out-of-band test vectors, then test and implement. Also
@ -138,9 +142,11 @@ void ChaCha_Policy::OperateKeystream(KeystreamOperation operation, byte *output,
}
}
/*
template class ChaCha_Policy<8>;
template class ChaCha_Policy<12>;
template class ChaCha_Policy<20>;
*/
NAMESPACE_END