public void AESinECB_Test() //ECB = Electronic Codebook
{
//https://cryptopals.com/sets/1/challenges/7
string str = Util.GetFile(7);
string Hex = MyConvert.Base64ToHex(str);
var bytes = MyConvert.HexToByteArray(Hex);
string key = "YELLOW SUBMARINE";
string HexKey = MyConvert.HexEncodePlainText(key);
var Keybytes = MyConvert.HexToByteArray(HexKey);
var result = MyCrypto.AES_ECB_Decrypt(bytes, Keybytes);
var HexResult = MyConvert.BytesToHex(result);
var Plain = MyConvert.HexToAscii(HexResult);
Assert.IsTrue("I'm back and I'm ringin' " == Plain.Substring(0, 25));
}
public void AESinECB_Encrypt_Decrypt_Test() //ECB = Electronic Codebook
{
string OriginalMessage = "Now is the time for all good men to come to the aid of their country";
var bytes = MyConvert.TextToByteArray(OriginalMessage);
var PaddedBytes = Pad.AddPkcs7(bytes, 128); //Pad the message to 128 bytes
//The Key (16 bytes)
string key = "YELLOW SUBMARINE";
string HexKey = MyConvert.HexEncodePlainText(key);
var Keybytes = MyConvert.HexToByteArray(HexKey);
//Encrypt
var CiperBytes = MyCrypto.AES_ECB_Encrypt(PaddedBytes, Keybytes);
//Decrypt
var PlainBytes = MyCrypto.AES_ECB_Decrypt(CiperBytes, Keybytes);
var UnPaddedBytes = Pad.RemovePkcs7(PlainBytes); //Unpad the message
var hexPlain = MyConvert.BytesToHex(UnPaddedBytes);
var PlainText = MyConvert.HexToAscii(hexPlain);
Assert.IsTrue(OriginalMessage == PlainText);
}