fix: Refactor crypto

crypto/subtle/random/random.go

@@ -1,22 +0,0 @@
-package random
-
-import (
-	"crypto/rand"
-	"encoding/binary"
-)
-
-// GetRandomBytes randomly generates n bytes.
-func GetRandomBytes(n uint32) []byte {
-	buf := make([]byte, n)
-	_, err := rand.Read(buf)
-	if err != nil {
-		panic(err) // out of randomness, should never happen
-	}
-	return buf
-}
-
-// GetRandomUint32 randomly generates an unsigned 32-bit integer.
-func GetRandomUint32() uint32 {
-	b := GetRandomBytes(4)
-	return binary.BigEndian.Uint32(b)
-}