package main

import (
    "crypto/rand"
    "encoding/hex"
    "fmt"
)

func generateKey() ([]byte, error) {
    key := make([]byte, 16)
    _, err := rand.Read(key)
    if err != nil {
        return nil, err
    }
    return key, nil
}

func main() {
    key, err := generateKey()
    if err != nil {
        panic(err)
    }

    fmt.Println("Generated 32-byte key (hex):", hex.EncodeToString(key))
}