Ox: Use crypto/rand instead of math/rand for rpad.

helpers.go

@@ -9,9 +9,8 @@ import (
 	"crypto/rand"
 	"fmt"
 	"log"
-	mrand "math/rand"
+	"math/big"
 	"os"
-	"time"
 )
 
 func readFile(path string) (*bytes.Buffer, error) {
@@ -31,12 +30,14 @@ func readFile(path string) (*bytes.Buffer, error) {
 
 func getRpad() string {
 	var letters = []rune("abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ0123456789.,;?!+-_§$%&/()=")
-
-	mrand.Seed(time.Now().UnixNano())
-	s := make([]rune, mrand.Intn(30)+20)
+	lettersLength := int64(len(letters))
+	length, _ := rand.Int(rand.Reader, big.NewInt(30))
+	s := make([]rune, length.Int64())
 	for i := range s {
-		s[i] = letters[mrand.Intn(len(letters))]
+		pos, _ := rand.Int(rand.Reader, big.NewInt(lettersLength))
+		s[i] = letters[pos.Int64()]
 	}
+	println("rpad:",string(s))
 	return string(s)
 }