我想生成rsa密钥对(公共和私有),然后将它们用于AES加密和解密。加密的公钥和Decryption的私钥。我为此编写了一个简单的代码,但问题是当我运行此代码时出现此错误:
crypto/aes: invalid key size 1639
我怎样才能解决这个问题?我的加密代码如下:
//genrarting private key
privateKey, err := rsa.GenerateKey(rand.Reader, 2014)
if err != nil {
return
}
privateKeyDer := x509.MarshalPKCS1PrivateKey(privateKey)
privateKeyBlock := pem.Block{
Type: "RSA PRIVATE KEY",
Headers: nil,
Bytes: privateKeyDer,
}
privateKeyPem := string(pem.EncodeToMemory(&privateKeyBlock))
//using privateKeyPem for encryption
text := []byte("My name is Astaxie")
ciphertext, err := encrypt(text, []byte(privateKeyPem))
if err != nil {
// TODO: Properly handle error
log.Fatal(err)
}
fmt.Printf("%s => %x\n", text, ciphertext)
//Definition of encrypt()
func encrypt(plaintext []byte, key []byte) ([]byte, error) {
c, err := aes.NewCipher(key)
if err != nil {
return nil, err
}
gcm, err := cipher.NewGCM(c)
if err != nil {
return nil, err
}
nonce := make([]byte, gcm.NonceSize())
if _, err = io.ReadFull(rand.Reader, nonce); err != nil {
return nil, err
}
return gcm.Seal(nonce, nonce, plaintext, nil), nil
}