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don't create EVP_CIPHER_CTX for each ChaCha20

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orignal
2025-01-15 21:13:50 -05:00
parent 8c555fe592
commit 4bb82110ab
6 changed files with 63 additions and 21 deletions
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15
libi2pd/Crypto.h
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@@ -1,5 +1,5 @@
/*
* Copyright (c) 2013-2024, The PurpleI2P Project
* Copyright (c) 2013-2025, The PurpleI2P Project
*
* This file is part of Purple i2pd project and licensed under BSD3
*
@@ -226,6 +226,19 @@ namespace crypto
// ChaCha20
void ChaCha20 (const uint8_t * msg, size_t msgLen, const uint8_t * key, const uint8_t * nonce, uint8_t * out);
class ChaCha20Context
{
public:
ChaCha20Context ();
~ChaCha20Context ();
void operator ()(const uint8_t * msg, size_t msgLen, const uint8_t * key, const uint8_t * nonce, uint8_t * out);
private:
EVP_CIPHER_CTX * m_Ctx;
};
// HKDF
void HKDF (const uint8_t * salt, const uint8_t * key, size_t keyLen, const std::string& info, uint8_t * out, size_t outLen = 64); // salt - 32, out - 32 or 64, info <= 32