doxygen/html/chacha20_8h_source.html

 // Copyright (c) 2017 The Bitcoin Core developers
 // Distributed under the MIT software license, see the accompanying
 // file COPYING or http://www.opensource.org/licenses/mit-license.php.

 #ifndef BITCOIN_CRYPTO_CHACHA20_H
 #define BITCOIN_CRYPTO_CHACHA20_H

 #include <stdint.h>
 #include <stdlib.h>

 class ChaCha20
 {
 private:
     uint32_t input[16];

 public:
     ChaCha20();
     ChaCha20(const unsigned char* key, size_t keylen);
     void SetKey(const unsigned char* key, size_t keylen);
     void SetIV(uint64_t iv); // set the 64bit nonce
     void Seek(uint64_t pos); // set the 64bit block counter

     void Keystream(unsigned char* c, size_t bytes);

     void Crypt(const unsigned char* input, unsigned char* output, size_t bytes);
 };

 #endif // BITCOIN_CRYPTO_CHACHA20_H
ChaCha20::input
uint32_t input[16]
Definition: chacha20.h:16

ChaCha20::Crypt
void Crypt(const unsigned char *input, unsigned char *output, size_t bytes)
enciphers the message <input> of length <bytes> and write the enciphered representation into <output>...
Definition: chacha20.cpp:182

ChaCha20
A class for ChaCha20 256-bit stream cipher developed by Daniel J.
Definition: chacha20.h:13

ChaCha20::ChaCha20
ChaCha20()
Definition: chacha20.cpp:52

ChaCha20::Seek
void Seek(uint64_t pos)
Definition: chacha20.cpp:68

ChaCha20::Keystream
void Keystream(unsigned char *c, size_t bytes)
outputs the keystream of size <bytes> into
Definition: chacha20.cpp:74

ChaCha20::SetKey
void SetKey(const unsigned char *key, size_t keylen)
set key with flexible keylength; 256bit recommended */
Definition: chacha20.cpp:24

ChaCha20::SetIV
void SetIV(uint64_t iv)
Definition: chacha20.cpp:62