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/*************************************************
* OpenSSL ARC4 Source File *
* (C) 1999-2007 Jack Lloyd *
*************************************************/
#include <botan/arc4_openssl.h>
#include <botan/parsing.h>
#include <openssl/rc4.h>
namespace Botan {
/*************************************************
* Return the name of this type *
*************************************************/
std::string ARC4_OpenSSL::name() const
{
if(SKIP == 0) return "ARC4";
if(SKIP == 256) return "MARK-4";
else return "RC4_skip(" + to_string(SKIP) + ")";
}
/*************************************************
* ARC4 Key Schedule *
*************************************************/
void ARC4_OpenSSL::key_schedule(const byte key[], u32bit length)
{
RC4_set_key(&state, length, key);
byte dummy = 0;
for(u32bit j = 0; j != SKIP; j++)
RC4(&state, 1, &dummy, &dummy);
}
/*************************************************
* ARC4 Encryption *
*************************************************/
void ARC4_OpenSSL::cipher(const byte in[], byte out[], u32bit length)
{
RC4(&state, length, in, out);
}
}
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