Mencari Kembali Password yang Terlupa pada Berkas Konfigurasi rclone.conf

package main

import (
    "crypto/aes"
    "crypto/cipher"
    "crypto/rand"
    "encoding/base64"
    "errors"
    "fmt"
    "log"
)

// crypt internals
var (
    cryptKey = []byte{
        0x9c, 0x93, 0x5b, 0x48, 0x73, 0x0a, 0x55, 0x4d,
        0x6b, 0xfd, 0x7c, 0x63, 0xc8, 0x86, 0xa9, 0x2b,
        0xd3, 0x90, 0x19, 0x8e, 0xb8, 0x12, 0x8a, 0xfb,
        0xf4, 0xde, 0x16, 0x2b, 0x8b, 0x95, 0xf6, 0x38,
    }
    cryptBlock cipher.Block
    cryptRand  = rand.Reader
)

// crypt transforms in to out using iv under AES-CTR.
//
// in and out may be the same buffer.
//
// Note encryption and decryption are the same operation
func crypt(out, in, iv []byte) error {
    if cryptBlock == nil {
        var err error
        cryptBlock, err = aes.NewCipher(cryptKey)
        if err != nil {
            return err
        }
    }
    stream := cipher.NewCTR(cryptBlock, iv)
    stream.XORKeyStream(out, in)
    return nil
}

// Reveal an obscured value
func Reveal(x string) (string, error) {
    ciphertext, err := base64.RawURLEncoding.DecodeString(x)
    if err != nil {
        return "", fmt.Errorf("base64 decode failed when revealing password - is it obscured? %w", err)
    }
    if len(ciphertext) < aes.BlockSize {
        return "", errors.New("input too short when revealing password - is it obscured?")
    }
    buf := ciphertext[aes.BlockSize:]
    iv := ciphertext[:aes.BlockSize]
    if err := crypt(buf, buf, iv); err != nil {
        return "", fmt.Errorf("decrypt failed when revealing password - is it obscured? %w", err)
    }
    return string(buf), nil
}

// MustReveal reveals an obscured value, exiting with a fatal error if it failed
func MustReveal(x string) string {
    out, err := Reveal(x)
    if err != nil {
        log.Fatalf("Reveal failed: %v", err)
    }
    return out
}

func main() {
    fmt.Println(MustReveal("YOUR PSEUDO-ENCRYPTED PASSWORD HERE"))
}