Static Public Member Functions | List of all members
Primes Class Reference

Prime number creation class. More...

Static Public Member Functions

static BigInteger createProbablePrime (int bitLength, int certainty, const int *randomSeeds=0, int numRandomSeeds=0)
 Creates a random prime number with a given bit-length. More...
 
static bool isProbablyPrime (const BigInteger &number, int certainty)
 Tests a number to see if it's prime. More...
 

Detailed Description

Prime number creation class.

This class contains static methods for generating and testing prime numbers.

See also
BigInteger

Member Function Documentation

◆ createProbablePrime()

static BigInteger Primes::createProbablePrime ( int  bitLength,
int  certainty,
const int *  randomSeeds = 0,
int  numRandomSeeds = 0 
)
static

Creates a random prime number with a given bit-length.

The certainty parameter specifies how many iterations to use when testing for primality. A safe value might be anything over about 20-30.

The randomSeeds parameter lets you optionally pass it a set of values with which to seed the random number generation, improving the security of the keys generated.

◆ isProbablyPrime()

static bool Primes::isProbablyPrime ( const BigInteger number,
int  certainty 
)
static

Tests a number to see if it's prime.

This isn't a bulletproof test, it uses a Miller-Rabin test to determine whether the number is prime.

The certainty parameter specifies how many iterations to use when testing - a safe value might be anything over about 20-30.


The documentation for this class was generated from the following file: