Fix G404 gosec lint error

utils/random/number.go

@@ -2,12 +2,23 @@ package random
 
 import (
 	"crypto/rand"
+	"encoding/binary"
 	"math/big"
 
 	"golang.org/x/exp/constraints"
 )
 
-func Int64[T constraints.Integer](max T) int64 {
+// Int64N returns a random int64 between 0 and max.
+// This is a reimplementation of math/rand/v2.Int64N using a cryptographically secure random number generator.
+func Int64N[T constraints.Integer](max T) int64 {
 	rnd, _ := rand.Int(rand.Reader, big.NewInt(int64(max)))
 	return rnd.Int64()
 }
+
+// Uint64 returns a random uint64.
+// This is a reimplementation of math/rand/v2.Uint64 using a cryptographically secure random number generator.
+func Uint64() uint64 {
+	buffer := make([]byte, 8)
+	_, _ = rand.Read(buffer)
+	return binary.BigEndian.Uint64(buffer)
+}