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/*
* Copyright (C) 2016+ AzerothCore <www.azerothcore.org>, released under GNU GPL v2 license: http://github.com/azerothcore/azerothcore-wotlk/LICENSE-GPL2
* Copyright (C) 2008-2016 TrinityCore <http://www.trinitycore.org/>
* Copyright (C) 2005-2009 MaNGOS <http://getmangos.com/>
*/
#include "ARC4.h"
#include <openssl/sha.h>
ARC4::ARC4(uint8 len) : m_ctx()
{
EVP_CIPHER_CTX_init(&m_ctx);
EVP_EncryptInit_ex(&m_ctx, EVP_rc4(), NULL, NULL, NULL);
EVP_CIPHER_CTX_set_key_length(&m_ctx, len);
}
ARC4::ARC4(uint8 *seed, uint8 len) : m_ctx()
{
EVP_CIPHER_CTX_init(&m_ctx);
EVP_EncryptInit_ex(&m_ctx, EVP_rc4(), NULL, NULL, NULL);
EVP_CIPHER_CTX_set_key_length(&m_ctx, len);
EVP_EncryptInit_ex(&m_ctx, NULL, NULL, seed, NULL);
}
ARC4::~ARC4()
{
EVP_CIPHER_CTX_cleanup(&m_ctx);
}
void ARC4::Init(uint8 *seed)
{
EVP_EncryptInit_ex(&m_ctx, NULL, NULL, seed, NULL);
}
void ARC4::UpdateData(int len, uint8 *data)
{
int outlen = 0;
EVP_EncryptUpdate(&m_ctx, data, &outlen, data, len);
EVP_EncryptFinal_ex(&m_ctx, data, &outlen);
}
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