package main
import (
"fmt"
"io"
"crypto/aes"
"crypto/cipher"
"encoding/base64"
"crypto/rand"
)
func encrypt(key []byte, text string) string {
plaintext := []byte(text)
block, err := aes.NewCipher(key)
if err != nil {
panic(err)
}
ciphertext := make([]byte, aes.BlockSize+len(plaintext))
iv := ciphertext[:aes.BlockSize]
if _, err := io.ReadFull(rand.Reader, iv); err != nil {
panic(err)
}
stream := cipher.NewCFBEncrypter(block, iv)
stream.XORKeyStream(ciphertext[aes.BlockSize:], plaintext)
return base64.URLEncoding.EncodeToString(ciphertext)
}
func main() {
fmt.Printf(encrypt([]byte("0123456789abcdef"), "test text 123"))
}
