Files
rippled/modules/ripple_basics/utility/ripple_DiffieHellmanUtil.cpp
2013-06-14 08:45:13 -07:00

34 lines
786 B
C++

std::string DH_der_gen (int iKeyLength)
{
DH* dh = 0;
int iCodes;
std::string strDer;
do
{
dh = DH_generate_parameters (iKeyLength, DH_GENERATOR_5, NULL, NULL);
iCodes = 0;
DH_check (dh, &iCodes);
}
while (iCodes & (DH_CHECK_P_NOT_PRIME | DH_CHECK_P_NOT_SAFE_PRIME | DH_UNABLE_TO_CHECK_GENERATOR | DH_NOT_SUITABLE_GENERATOR));
strDer.resize (i2d_DHparams (dh, NULL));
unsigned char* next = reinterpret_cast<unsigned char*> (&strDer[0]);
(void) i2d_DHparams (dh, &next);
return strDer;
}
DH* DH_der_load (const std::string& strDer)
{
const unsigned char* pbuf = reinterpret_cast<const unsigned char*> (&strDer[0]);
return d2i_DHparams (NULL, &pbuf, strDer.size ());
}
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