Cryptography

Go มี crypto packages ที่ครบถ้วนสำหรับ encryption, hashing, และ signatures

Hashing

package main

import (
    "crypto/md5"
    "crypto/sha256"
    "crypto/sha512"
    "fmt"
)

func main() {
    data := []byte("Hello, World!")

    // SHA-256 (recommended)
    sha256Hash := sha256.Sum256(data)
    fmt.Printf("SHA-256: %x\n", sha256Hash)

    // SHA-512
    sha512Hash := sha512.Sum512(data)
    fmt.Printf("SHA-512: %x\n", sha512Hash[:32]) // แค่ 32 bytes แรก

    // MD5 (NOT recommended for security)
    md5Hash := md5.Sum(data)
    fmt.Printf("MD5: %x\n", md5Hash)
}