toxcore/nacl/crypto_stream/wrapper-xor.cpp
2013-07-02 09:53:34 -04:00

18 lines
527 B
C++

#include <string>
using std::string;
#include "crypto_stream.h"
string crypto_stream_xor(const string &m,const string &n,const string &k)
{
if (n.size() != crypto_stream_NONCEBYTES) throw "incorrect nonce length";
if (k.size() != crypto_stream_KEYBYTES) throw "incorrect key length";
size_t mlen = m.size();
unsigned char c[mlen];
crypto_stream_xor(c,
(const unsigned char *) m.c_str(),mlen,
(const unsigned char *) n.c_str(),
(const unsigned char *) k.c_str()
);
return string((char *) c,mlen);
}