/// <summary>
/// 加密
/// </summary>
/// <param name="algorithm">算法</param>
/// <param name="valueToEnCrypt">加密值</param>
/// <returns>结果</returns>
private static string EnCrypt(SymmetricAlgorithm algorithm, string valueToEnCrypt)
{
byte[] bytes = Encoding.UTF8.GetBytes(valueToEnCrypt);
string encryptionKey = EncryptionKey;
byte[] originalArray = Encoding.ASCII.GetBytes(encryptionKey);
algorithm.Key = (byte[])ArrayFunctions.ReDim(originalArray, algorithm.Key.Length);
algorithm.IV = (byte[])ArrayFunctions.ReDim(originalArray, algorithm.IV.Length);
StringBuilder builder;
using (var stream = new MemoryStream())
{
using (var stream2 = new CryptoStream(stream, algorithm.CreateEncryptor(), CryptoStreamMode.Write))
{
stream2.Write(bytes, 0, bytes.Length);
stream2.FlushFinalBlock();
}
builder = new StringBuilder();
for (int i = 0; i < stream.ToArray().Length; i++)
{
byte num2 = stream.ToArray()[i];
builder.AppendFormat("{0:X2}", num2);
}
}
return(builder.ToString());
}
/// <summary>
/// 解密
/// </summary>
/// <param name="algorithm">算法</param>
/// <param name="valueToDeCrypt">解密值</param>
/// <returns>结果</returns>
private static string DeCrypt(SymmetricAlgorithm algorithm, string valueToDeCrypt)
{
var buffer = new byte[valueToDeCrypt.Length / 2];
for (int i = 0; i < (valueToDeCrypt.Length / 2); i++)
{
int num2 = Convert.ToInt32(valueToDeCrypt.Substring(i * 2, 2), 0x10);
buffer[i] = (byte)num2;
}
string encryptionKey = EncryptionKey;
byte[] bytes = Encoding.ASCII.GetBytes(encryptionKey);
algorithm.Key = (byte[])ArrayFunctions.ReDim(bytes, algorithm.Key.Length);
algorithm.IV = (byte[])ArrayFunctions.ReDim(bytes, algorithm.IV.Length);
StringBuilder builder;
using (var stream = new MemoryStream())
{
using (var stream2 = new CryptoStream(stream, algorithm.CreateDecryptor(), CryptoStreamMode.Write))
{
stream2.Write(buffer, 0, buffer.Length);
stream2.FlushFinalBlock();
}
builder = new StringBuilder();
for (int j = 0; j < stream.ToArray().Length; j++)
{
builder.Append((char)stream.ToArray()[j]);
}
}
return(builder.ToString());
}
