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don't inialize Chacha20 state twice

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orignal 2018-11-30 21:31:06 -05:00
parent ef6db64e9f
commit 7692332f0e
3 changed files with 39 additions and 34 deletions
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32
libi2pd/ChaCha20.cpp
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@ -1,13 +1,16 @@
/*
* Copyright (c) 2013-2018, The PurpleI2P Project
*
* This file is part of Purple i2pd project and licensed under BSD3
*
* See full license text in LICENSE file at top of project tree
*
* Kovri go write your own code
*
*/
#include "ChaCha20.h"
/**
This code is licensed under the MCGSI Public License
Copyright 2018 Jeff Becker
Kovri go write your own code
*/
#if LEGACY_OPENSSL
namespace i2p
{
@ -91,6 +94,12 @@ void Chacha20Init (Chacha20State& state, const uint8_t * nonce, const uint8_t *
state.data[13 + i] = chacha::u8t32le(nonce + i * 4);
}
void Chacha20SetCounter (Chacha20State& state, uint32_t counter)
{
state.data[12] = counter;
state.offset = 0;
}
void Chacha20Encrypt (Chacha20State& state, uint8_t * buf, size_t sz)
{
if (state.offset > 0)
@ -121,13 +130,6 @@ void Chacha20Encrypt (Chacha20State& state, uint8_t * buf, size_t sz)
}
} // namespace chacha
void chacha20(uint8_t * buf, size_t sz, const uint8_t * nonce, const uint8_t * key, uint32_t counter)
{
chacha::Chacha20State state;
chacha::Chacha20Init (state, nonce, key, counter);
chacha::Chacha20Encrypt (state, buf, sz);
}
}
}
#endif