Ejemplo n.º 1
0
        public void EncryptDecryptBasic()
        {
            Substitution sub       = new Substitution(new Alphabet("PHQGIUMEAYLNOFDXJKRCVSTZWB"));
            var          encrypted = sub.Encrypt(TextExample);

            Assert.AreEqual("GIUIFGCEIIPRCTPNN", encrypted);
            var decrypted = sub.Decrypt(encrypted);

            Assert.AreEqual(TextExample, decrypted);
        }
Ejemplo n.º 2
0
        public IActionResult EncryptMessage([FromBody] VigenereModel message)
        {
            var plainText = message.Message;
            var alphabet  = message.Alphabet;
            var password  = message.Password;

            Substitution cipher = new Substitution(alphabet);

            message.Message = cipher.Encrypt(plainText, password);

            return(Json(message));
        }
Ejemplo n.º 3
0
        /// <summary>
        /// Converts a missiong information into a password.
        /// </summary>
        /// <param name="info">Mission to convert.</param>
        /// <returns>The password.</returns>
        public static string Convert(WonderSMail info)
        {
            if (info == null)
            {
                throw new ArgumentNullException(nameof(info));
            }

            // Serialize the structure into a bit stream
            DataStream stream = new DataStream();
            BitWriter  writer = new BitWriter(stream);

            writer.Write(info.MailType, 4);
            writer.Write(info.MissionType, 4);
            writer.Write(info.MissionSubType, 4);
            writer.Write(info.SourceClientId, 11);
            writer.Write(info.TargetClientId, 11);
            writer.Write(info.TargetClientFemale, 11);
            writer.Write(info.RewardObjectId, 10);
            writer.Write(info.RewardType, 4);
            writer.Write(info.RewardId, 11);
            writer.Write(info.RestrictionType, 1);
            writer.Write(info.RestrictionParam, 11);
            writer.Write(info.Random, 24);
            writer.Write(info.LocationId, 8);
            writer.Write(info.FloorNumber, 8);
            writer.Write(info.Requirement, 8);

            // Write the stream into an array for the rounds.
            // We allocate an extra space for the checksum (first uint)
            // and the null terminator (last byte).
            byte[] binary = new byte[stream.Length + 5];
            stream.Position = 0;
            stream.Read(binary, 4, (int)stream.Length);

            // Create checksum
            uint crc32 = Crc32.Calculate(binary, 4, binary.Length - 5);

            byte[] crc32Bytes = BitConverter.GetBytes(crc32);
            binary[0] = crc32Bytes[0];
            binary[1] = crc32Bytes[1];
            binary[2] = crc32Bytes[2];
            binary[3] = crc32Bytes[3];

            // Do encryption rounds
            // The key is the checksum, we don't encrypt the null terminator.
            Scramble.Encrypt(crc32Bytes[0], binary, 4, binary.Length - 5);
            string password = Substitution.Encrypt(binary, PasswordLength);

            password = Permutation.Encrypt(password, false);

            return(password);
        }
        /// <summary>
        /// Converts a missiong information into a password.
        /// </summary>
        /// <param name="info">Mission to convert.</param>
        /// <returns>The password.</returns>
        public static string Convert(MissionMail info)
        {
            if (info == null)
            {
                throw new ArgumentNullException(nameof(info));
            }

            // Serialize the structure into a bit stream
            DataStream stream = new DataStream();
            BitWriter  writer = new BitWriter(stream);

            writer.Write((byte)info.Type, 4);
            writer.Write(info.LocationId, 7);
            writer.Write(info.FloorNumber, 7);
            if (info.Type == MissionState.Sos)
            {
                writer.Write(info.Random, 24);
            }
            writer.Write(info.UID, 64);
            writer.Write((byte)info.ClientLanguage, 4);
            writer.Write(info.ClientName, 80, EncodingName);
            if (info.Type != MissionState.Sos)
            {
                writer.Write(info.ObjectID1, 10);
                writer.Write(info.ObjectID2, 10);
            }

            writer.Write(info.RescuerUID, 64);
            writer.Write((byte)info.GameType, 2);

            // Write the stream into an array for the rounds.
            // We allocate an extra space for the checksum (first byte)
            // and the null terminator (last byte).
            byte[] binary = new byte[stream.Length + 2];
            stream.Position = 0;
            stream.Read(binary, 1, binary.Length - 2);

            // Create checksum
            byte checksum = Checksum.Calculate(binary, 1, binary.Length - 1);

            binary[0] = checksum;

            // Do encryption rounds
            // The key is the checksum, we don't encrypt the null terminator.
            Scramble.Encrypt(checksum, binary, 1, binary.Length - 2);
            string password = Substitution.Encrypt(binary, PasswordLength);

            password = Permutation.Encrypt(password, true);

            return(password);
        }
Ejemplo n.º 5
0
        public void Multigraph_SubstitutionTest()
        {
            Substitution substitution = new Substitution(Utility.KeyedEnglishAlphabet("KRYPTOS").ToStringArray());

            for (int i = 0; i < 25; i++)
            {
                substitution.Key = substitution.ScrambledAlphabet();
                generated        = substitution.GenerateRandomLetters();

                cipher = substitution.Encrypt(generated);
                clear  = substitution.Decrypt(cipher);

                CollectionAssert.AreEqual(generated, clear);
            }
        }
Ejemplo n.º 6
0
        public void Unigraph_SubstitutionTest()
        {
            Substitution substitution = new Substitution(Utility.KeyedEnglishAlphabet("KRYPTOS"));

            cipher    = "";
            clear     = "";
            generated = "";
            for (int i = 0; i < 25; i++)
            {
                substitution.Key = substitution.ScrambledAlphabet();
                generated        = substitution.GenerateRandomString();

                cipher = substitution.Encrypt(generated);
                clear  = substitution.Decrypt(cipher);

                Assert.AreEqual(generated, clear);
            }
        }