public void Encrypt_Decrypt()
{
//Arrange
string message = "message";
dynamic json = new JObject();
json.Data = message;
byte[] key =
{
0x88, 0x99, 0xaa, 0xbb, 0xcc, 0xdd, 0xee, 0xff,
0x00, 0x11, 0x22, 0x33, 0x44, 0x55, 0x66, 0x77,
0xfe, 0xdc, 0xba, 0x98, 0x76, 0x54, 0x32, 0x10,
0x01, 0x23, 0x45, 0x67, 0x89, 0xab, 0xcd, 0xef
};
AESHelper aESHelper = new AESHelper();
byte[] data = aESHelper.Normalize(json);
byte[] cipherbytes;
//Act
using (MemoryStream stream = new MemoryStream(data))
{
byte[] block = new byte[16];
cipherbytes = new byte[0];
while (stream.Read(block, 0, 16) > 0)
{
Array.Resize(ref cipherbytes, cipherbytes.Length + 16);
Array.Copy(serviceMock.Encrypt(block, key), 0, cipherbytes, cipherbytes.Length - 16, 16);
}
}
byte[] plainbytes = new byte[cipherbytes.Length];
using (MemoryStream stream = new MemoryStream(cipherbytes))
{
byte[] block = new byte[16];
int count = 0;
while (stream.Read(block, 0, 16) > 0)
{
Array.Copy(serviceMock.Decrypt(block, key), 0, plainbytes, count, 16);
count += 16;
}
}
var result = aESHelper.ParseToJson(plainbytes);
//Assert
Assert.IsNotNull(cipherbytes);
Assert.IsNotNull(plainbytes);
Assert.AreEqual(cipherbytes.Length, plainbytes.Length);
Assert.AreEqual(Newtonsoft.Json.JsonConvert.SerializeObject(json),
Newtonsoft.Json.JsonConvert.SerializeObject(result));
}
/// <summary>
/// Decrypts the cipherbytes. Implements <see cref="IAESService.Decrypt(byte[])"/>.
/// </summary>
/// <param name="cipherbytes">The cipherbytes to be decrypted.</param>
/// <returns>The JSON object.</returns>
public JObject Decrypt(byte[] cipherbytes)
{
helperAES = new AESHelper();
algorithm = new Grasshopper();
byte[] plainbytes = new byte[cipherbytes.Length];
using (MemoryStream stream = new MemoryStream(cipherbytes))
{
byte[] block = new byte[16];
int count = 0;
while (stream.Read(block, 0, blockLength) > 0)
{
Array.Copy(algorithm.Decrypt(block, Keys.GrasshopperKey), 0, plainbytes, count, blockLength);
count += blockLength;
}
return(helperAES.ParseToJson(plainbytes));
}
}