Go语言使用AES加密解密的示例代码

package main
import (
    "crypto/aes"
    "crypto/cipher"
    "encoding/base64"
    "fmt"
)
func main() {
    key := []byte("this is a 16 byte key")
    iv := []byte("this is a 16 byte iv")
    plaintext := []byte("hello world")
    // 加密
    ciphertext, err := encrypt(plaintext, key, iv)
    if err != nil {
        panic(err)
    }
    fmt.Printf("加密结果：%s\n", base64.StdEncoding.EncodeToString(ciphertext))
    // 解密
    decrypted, err := decrypt(ciphertext, key, iv)
    if err != nil {
        panic(err)
    }
    fmt.Printf("解密结果：%s\n", decrypted)
}
func encrypt(plaintext []byte, key []byte, iv []byte) ([]byte, error) {
    block, err := aes.NewCipher(key)
    if err != nil {
        return nil, err
    }
    ciphertext := make([]byte, len(plaintext))
    mode := cipher.NewCBCEncrypter(block, iv)
    mode.CryptBlocks(ciphertext, plaintext)
    return ciphertext, nil
}
func decrypt(ciphertext []byte, key []byte, iv []byte) ([]byte, error) {
    block, err := aes.NewCipher(key)
    if err != nil {
        return nil, err
    }
    plaintext := make([]byte, len(ciphertext))
    mode := cipher.NewCBCDecrypter(block, iv)
    mode.CryptBlocks(plaintext, ciphertext)
    return plaintext, nil
}