public BBSGenerator2(uint[] parityBytes, uint p, uint q, uint initSeed)
{
_parityBytes = parityBytes;
_p = p;
_q = q;
_xVal = initSeed;
//Check for even or odd seed
_mode = (initSeed % 2 == 0) ? ParityMode.Even : ParityMode.Odd;
}
public BBSGenerator2(uint[] parityBytes, uint p, uint q, uint initSeed)
{
_parityBytes = parityBytes;
_p = p;
_q = q;
_xVal = initSeed;
//Check for even or odd seed
_mode = (initSeed % 2 == 0) ? ParityMode.Even : ParityMode.Odd;
}
public BBSGenerator(uint[] parityBytes, uint[] primes, uint initSeed)
{
_parityBytes = parityBytes;
_primes = primes;
_pIndex = 0;
_qIndex = 1;
_xVal = initSeed;
//Check for even or odd seed
_mode = (initSeed % 2 == 0) ? ParityMode.Even : ParityMode.Odd;
}
public BBSGenerator(uint[] parityBytes, uint[] primes, uint initSeed)
{
_parityBytes = parityBytes;
_primes = primes;
_pIndex = 0;
_qIndex = 1;
_xVal = initSeed;
//Check for even or odd seed
_mode = (initSeed % 2 == 0) ? ParityMode.Even : ParityMode.Odd;
}
/// <summary>
/// Calculates the parity bit of n. Setting isEven to true calculates even parity. Setting odd to true calculates odd.
/// </summary>
/// <param name="n">The unsigned integer to calculate for.</param>
/// <param name="isEvenParity">True if looking for even parity, otherwise false.</param>
/// <returns>True if parity is 1, or false if 0.</returns>
private bool CalculateParityBit(uint n, uint[] parityBits, ParityMode mode)
{
int bitCounter = 0;
for (int i = parityBits.Length - 1; i >= 0; i--)
{
if (n >= parityBits[i])
{
n -= parityBits[i];
bitCounter++;
}
}
//If even and looking for even then we want to return 0, else 1
//If even and looking for odd then we want to return 1, else 0
return ((bitCounter % 2) == 0) ^ (mode.Equals(ParityMode.Even));
}
/// <summary>
/// Calculates the parity bit of n. Setting isEven to true calculates even parity. Setting odd to true calculates odd.
/// </summary>
/// <param name="n">The unsigned integer to calculate for.</param>
/// <param name="isEvenParity">True if looking for even parity, otherwise false.</param>
/// <returns>True if parity is 1, or false if 0.</returns>
private bool CalculateParityBit(uint n, uint[] parityBits, ParityMode mode)
{
int bitCounter = 0;
for (int i = parityBits.Length - 1; i >= 0; i--)
{
if (n >= parityBits[i])
{
n -= parityBits[i];
bitCounter++;
}
}
//If even and looking for even then we want to return 0, else 1
//If even and looking for odd then we want to return 1, else 0
return(((bitCounter % 2) == 0) ^ (mode.Equals(ParityMode.Even)));
}
