这是我的AES实现代码。传递字符串时,它会成功加密字符串。但是当我尝试使用上面提到的方法将byte []转换为sting时,它会给出错误。同样它不执行解密。接下来所有值在控制台窗口中返回null。 这是屏幕上的错误: 错误:填充无效且无法删除。当我尝试在数据库中插入值时发生此错误。并且当尝试检索空值时得到回报。我该怎么办?
namespace AES_Implmentatio
{
class Program
{
static void Main(string[] args) // write public in start
{
try
{
string original = "Here is some data to encrypt!";
using (AesManaged myAes = new AesManaged())
{
//byte[] cipherbytes = System.Text.ASCIIEncoding.Default.GetBytes(encypted);
//string result = Encoding.ASCII.GetString(encrypted);
Console.WriteLine("Original: {0}", original);
byte[] encrypted = EncryptStringToBytes_Aes(original, myAes.Key, myAes.IV);
string result1 = Encoding.ASCII.GetString(encrypted); // Not showing the results
Console.WriteLine("Encypted Data", result1);
byte[] cipherbytes = System.Text.ASCIIEncoding.Default.GetBytes(result1);
string roundtrip = DecryptStringFromBytes_Aes(cipherbytes, myAes.Key, myAes.IV);
}
}
catch (Exception e)
{
Console.WriteLine("Error: {0}", e.Message);
}
Console.ReadLine();
}
static byte[] EncryptStringToBytes_Aes(string plainText, byte[] Key, byte[] IV)
{
// Check arguments.
if (plainText == null || plainText.Length <= 0)
throw new ArgumentNullException("plainText");
if (Key == null || Key.Length <= 0)
throw new ArgumentNullException("Key");
if (IV == null || IV.Length <= 0)
throw new ArgumentNullException("IV");
byte[] encrypted;
// Create an AesManaged object
// with the specified key and IV.
using (AesManaged aesAlg = new AesManaged())
{
aesAlg.Key = Key;
aesAlg.IV = IV;
// Create a decrytor to perform the stream transform.
ICryptoTransform encryptor = aesAlg.CreateEncryptor(aesAlg.Key, aesAlg.IV);
// Create the streams used for encryption.
using (MemoryStream msEncrypt = new MemoryStream())
{
using (CryptoStream csEncrypt = new CryptoStream(msEncrypt, encryptor, CryptoStreamMode.Write))
{
using (StreamWriter swEncrypt = new StreamWriter(csEncrypt))
{
//Write all data to the stream.
swEncrypt.Write(plainText);
}
encrypted = msEncrypt.ToArray();
}
}
}
// Return the encrypted bytes from the memory stream.
return encrypted;
}
static string DecryptStringFromBytes_Aes(byte[] cipherText, byte[] Key, byte[] IV)
{
// Check arguments.
if (cipherText == null || cipherText.Length <= 0)
throw new ArgumentNullException("cipherText");
if (Key == null || Key.Length <= 0)
throw new ArgumentNullException("Key");
if (IV == null || IV.Length <= 0)
throw new ArgumentNullException("IV");
// Declare the string used to hold
// the decrypted text.
string plaintext = null;
// Create an AesManaged object
// with the specified key and IV.
using (AesManaged aesAlg = new AesManaged())
{
aesAlg.Key = Key;
aesAlg.IV = IV;
// Create a decrytor to perform the stream transform.
ICryptoTransform decryptor = aesAlg.CreateDecryptor(aesAlg.Key, aesAlg.IV);
// Create the streams used for decryption.
using (MemoryStream msDecrypt = new MemoryStream(cipherText))
{
using (CryptoStream csDecrypt = new CryptoStream(msDecrypt, decryptor, CryptoStreamMode.Read))
{
using (StreamReader srDecrypt = new StreamReader(csDecrypt))
{
// Read the decrypted bytes from the decrypting stream
// and place them in a string.
plaintext = srDecrypt.ReadToEnd();
}
}
}
}
return plaintext;
}
}
}
答案 0 :(得分:0)
您无法将二进制加密数据转换为字符串。如果你想要一个中间字符串,那么你可以将数据转换为base64并返回,否则它将被损坏:
function isOldEnoughToDrinkAndDrive(age) {
age = age ? parseInt(age) : 0;
var output = (age >= 21);
console.log(output);
return output;
}
var output = isOldEnoughToDrinkAndDrive(21);