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password/lib/helpers.go
Knut Ahlers 698109fb04
SEC: fix usage of insecure RNG
Signed-off-by: Knut Ahlers <knut@ahlers.me>
2022-06-27 19:41:47 +02:00

16 lines
282 B
Go

package securepassword
import (
"crypto/rand"
"fmt"
"math/big"
)
func randIntn(max int) (int, error) {
cidx, err := rand.Int(rand.Reader, big.NewInt(int64(max)))
if err != nil {
return 0, fmt.Errorf("generating random number: %w", err)
}
return int(cidx.Int64()), nil
}