private static string TranslatedNumber(string charString, CodeKey_ codeKey, bool above = true)
{
var number = above ? int.Parse(charString) + (int)codeKey : int.Parse(charString) - (int)codeKey;
var translation = Enum.GetValues(typeof(TranslationDescription_)).Cast <TranslationDescription_>().ToList().Find(e => (int)e == number);
return(EnumDescription(translation));
}
private static string TranslatedLetter(string charString, CodeKey_ codeKey, bool above = true)
{
var letter = charString;
var translation = Enum.GetValues(typeof(TranslationDescription_)).Cast <TranslationDescription_>().ToList().Find(e => EnumDescription(e) == letter);
var number = above ? (int)translation + (int)codeKey : (int)translation - (int)codeKey;
return(number.ToString());
}
public static string Encrypt(string decryption, CodeKey_ decodeKey)
{
var encryption = string.Empty;
var temp = string.Empty;
var addition = string.Empty;
switch (decodeKey)
{
case CodeKey_.oei_ntla_ltnb_si:
decryption.ToList().ForEach(c =>
{
var charString = $"{string.Empty}{c}";
if (Char.IsNumber(c))
{
addition = TranslatedNumber(charString, decodeKey);
}
else if (Char.IsLetter(c))
{
addition = TranslatedLetter(charString, decodeKey, above: false);
}
else
{
addition = charString;
}
temp += string.Join(string.Empty, Enumerable.Range(1, (int)decodeKey).Select(n => addition));
});
encryption = temp += (int)decodeKey;
break;
case CodeKey_.pi_oei_ntlb_ltna:
decryption.ToList().ForEach(c =>
{
var charString = $"{string.Empty}{c}";
if (Char.IsNumber(c))
{
addition = TranslatedNumber(charString, decodeKey, above: false);
}
else if (Char.IsLetter(c))
{
addition = TranslatedLetter(charString, decodeKey);
}
else
{
addition = charString;
}
temp += string.Join(string.Empty, Enumerable.Range(1, (int)decodeKey).Select(n => addition));
});
encryption = $"{(int)decodeKey} + {temp}";
break;
}
return(encryption);
}
public static string Decrypt(string encryption, CodeKey_ encodeKey)
{
var decryption = string.Empty;
var temp = string.Empty;
List <char> distinctEncryption = null;
var addition = string.Empty;
switch (encodeKey)
{
case CodeKey_.oei_ntla_ltnb_si:
temp = encryption.TrimEnd($"{(int)encodeKey}".ToArray());
distinctEncryption = temp.GroupBy(g => g).Select(c => c.Key).ToList();
distinctEncryption.ToList().ForEach(c =>
{
var charString = $"{string.Empty}{c}";
if (Char.IsNumber(c))
{
addition = TranslatedNumber(charString, encodeKey, above: false);
}
else if (Char.IsLetter(c))
{
addition = TranslatedLetter(charString, encodeKey);
}
else
{
addition = charString;
}
decryption += addition;
});
break;
case CodeKey_.pi_oei_ntlb_ltna:
temp = encryption.TrimStart($"{(int)encodeKey}".ToArray());
distinctEncryption = temp.GroupBy(g => g).Select(c => c.Key).ToList();
distinctEncryption.ToList().ForEach(c =>
{
var charString = $"{string.Empty}{c}";
if (Char.IsNumber(c))
{
addition = TranslatedNumber(charString, encodeKey);
}
else if (Char.IsLetter(c))
{
addition = TranslatedLetter(charString, encodeKey, above: false);
}
else
{
addition = charString;
}
decryption += addition;
});
break;
}
return(decryption);
}
