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

24 lines
553 B
C++

#include <string>
using std::string;
#include "crypto_sign.h"
string crypto_sign(const string &m_string, const string &sk_string)
{
if (sk_string.size() != crypto_sign_SECRETKEYBYTES) throw "incorrect secret-key length";
size_t mlen = m_string.size();
unsigned char m[mlen+crypto_sign_BYTES];
unsigned long long smlen;
for (int i = 0;i < mlen;++i) m[i] = m_string[i];
crypto_sign(
m,
&smlen,
m,
mlen,
(const unsigned char *) sk_string.c_str()
);
return string(
(char *) m,
smlen
);
}