package crypto/rand
Prime returns a number, p, of the given size, such that p is prime with high probability. Prime will return error for any error returned by rand.Read(1st parameter) or if bits(2nd param) < 2.
Golang crypto/rand.Prime() function usage example
package main
import (
"crypto/rand"
"fmt"
"math/big"
)
func main() {
var p *big.Int
var bits int
var err error
bits = 99
p, err = rand.Prime(rand.Reader, bits)
if err != nil {
fmt.Println(err)
}
fmt.Printf("%d\n", p)
}
Sample output :
go run cryptorandprime.go
565350588010525112928194028091
Reference :
http://golang.org/pkg/crypto/rand/#Prime
