/// <summary>
/// 加密
/// </summary>
/// <param name="input">明文字节数组</param>
/// <param name="key">秘钥</param>
/// <param name="iv">初始化向量</param>
/// <returns>密文字节数组</returns>
public static byte[] Encrypt(byte[] inputBytes, byte[] key, byte[] iv)
{
if (inputBytes == null || inputBytes.Length <= 0)
{
throw new ArgumentNullException("inputBytes");
}
if (key == null || key.Length <= 0)
{
throw new ArgumentNullException("Key");
}
//创建AES管理工具
using (AesManaged myAes = CreateAesManaged(key, iv))
{
//创建加密算法
var encrypt = myAes.CreateEncryptor(key, iv);
using (MemoryStream inputStream = new MemoryStream(inputBytes))
{
Stream outStream = new MemoryStream();
try
{
CryptoTransform.TransformByRead(inputStream, encrypt, ref outStream);
return((outStream as MemoryStream).ToArray());
}
finally
{
if (outStream != null)
{
outStream.Close();
}
}
}
}
}
public static void Decryptor(Stream inputStream, byte[] key, byte[] iv, ref Stream outStream)
{
using (RijndaelManaged managed = CreateRijndaelManaged(key, iv))
{
var encryptory = managed.CreateDecryptor();
CryptoTransform.TransformByRead(inputStream, encryptory, ref outStream);
}
}
/// <summary>
/// 解密
/// </summary>
/// <param name="inputStream">密文输入流</param>
/// <param name="key">秘钥</param>
/// <param name="iv">偏移量</param>
/// <param name="outStream">明文输出流</param>
public static void Decryptor(Stream inputStream, byte[] key, byte[] iv, ref Stream outStream)
{
using (RC2CryptoServiceProvider rC2Crypto = CreateRC2CriptoService(key, iv))
{
var encryptor = rC2Crypto.CreateDecryptor();
CryptoTransform.TransformByWrite(inputStream, encryptor, ref outStream);
}
}
/// <summary>
/// 创建签名秘钥
/// </summary>
/// <param name="lenght">签名秘钥字节长度</param>
/// <returns>签名Key Base64字符串</returns>
public static String CreatedSignKey(int lenght = 32)
{
return(CryptoTransform.CreateKey(lenght));
//byte[] bytes = new Byte[lenght];
//using (RNGCryptoServiceProvider rng = new RNGCryptoServiceProvider())
//{
// rng.GetBytes(bytes);
// return Convert.ToBase64String(bytes);
//}
}
public static String CreateKeyNoIv()
{
return(CryptoTransform.CreateKey(32));
}
