protected virtual BigInteger CalculateE(BigInteger n, byte[] message)
{
int messageBitLength = message.Length * 8;
BigInteger trunc = new BigInteger(1, message);
if (n.BitLength < messageBitLength)
{
trunc = trunc.ShiftRight(messageBitLength - n.BitLength);
}
return trunc;
}
private BigInteger BitsToInt(byte[] t)
{
BigInteger v = new BigInteger(1, t);
if (t.Length * 8 > n.BitLength)
{
v = v.ShiftRight(t.Length * 8 - n.BitLength);
}
return v;
}
private BigInteger bits2int(byte[] @in)
{
BigInteger v = new BigInteger(1, @in);
int vlen = @in.Length * 8;
if(vlen > qlen)
{
v = v.ShiftRight(vlen - qlen);
}
return v;
}