public static string aesDecryptStringFromBytes(byte[] cipherText, string privateKeyStr)
{
string plaintext = null;
using (Aes aesAlg = AES_class.GetAes(privateKeyStr))
{
ICryptoTransform decryptor = aesAlg.CreateDecryptor(aesAlg.Key, aesAlg.IV);
using (MemoryStream msDecrypt = new MemoryStream(cipherText))
{
using (CryptoStream csDecrypt = new CryptoStream(msDecrypt, decryptor, CryptoStreamMode.Read))
{
using (StreamReader srDecrypt = new StreamReader(csDecrypt))
{
plaintext = srDecrypt.ReadToEnd();
}
}
}
}
return(plaintext);
}
public static byte[] aesEncryptStringToBytes(string plainText, string privateKeyStr)
{
byte[] encrypted;
using (Aes aesAlg = AES_class.GetAes(privateKeyStr))// Aes.Create())
{
ICryptoTransform encryptor = aesAlg.CreateEncryptor(aesAlg.Key, aesAlg.IV);
using (MemoryStream msEncrypt = new MemoryStream())
{
using (CryptoStream csEncrypt = new CryptoStream(msEncrypt, encryptor, CryptoStreamMode.Write))
{
using (StreamWriter swEncrypt = new StreamWriter(csEncrypt))
{
swEncrypt.Write(plainText);
}
encrypted = msEncrypt.ToArray();
}
}
}
return(encrypted);
}