package main
import (
"fmt"
)
// XORCipher encrypts or decrypts a string using a key
func XORCipher(input, key string) string {
output := make([]byte, len(input))
keyLen := len(key)
for i := 0; i < len(input); i++ {
output[i] = input[i] ^ key[i % keyLen]
}
return string(output)
}
func main() {
// Original message
str := "May the Force be with you."
// Key for encryption/decryption
key := "Obelus"
// Encrypt the message
encrypted := XORCipher(str, key)
fmt.Println("Encrypted:\n", encrypted)
// Decrypt the message
decrypted := XORCipher(encrypted, key)
fmt.Println("Decrypted:\n", decrypted)
}
/*
run:
Encrypted:
L :L *B# *B U &
Decrypted:
May the Force be with you.
*/
