public byte[] FromBase64(string base64Text)
{
if (string.IsNullOrEmpty(base64Text))
{
return(EmptyBytes);
}
return(Base64Encoders.Base64Decode(base64Text));
}
public string ToBase64(byte[] bytes)
{
if (bytes == null || bytes.Length == 0)
{
return(string.Empty);
}
return(Base64Encoders.Base64Encode(bytes));
}
//public const string Base256Code0 = "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789†‡ÀÁÂÃÄÅÆÇÈÉÊËÌÍÎÏÐÑÒÓÔÕÖ×ØÙÚÛÜÝÞßàáâãäåæçèéêëìíîïðñòóôõö÷øùúûüýþÿĀāĂ㥹ĆćĈĉĊċČčĎďĐđĒēĔĕĖėĘęĚěĜĝĞğĠġĢģĤĥĦħĨĩĪīĬĭĮįİıIJijĴĵĶķĸĹĺĻļĽľĿŀŁłŃńŅņŇňʼnŊŋŌōŎŏŐőŒœŔŕŖŗŘřŚśŜŝŞşŠšŢţŤťŦŧŨũŪūŬŭŮůŰűŲųŴŵŶŷŸŹźŻżŽžſ";
//public const string Base256Code1 = "!#$%&`()*+,-./0123456789:;<=>?@ABCDEFGHIJKLMNOPQRSTUVWXYZ[]^_'abcdefghijklmnopqrstuvwxyz{|}~ÀÁÂÃÄÅÆÇÈÉÊËÌÍÎÏÐÑÒÓÔÕÖ×ØÙÚÛÜÝÞßàáâãäåæçèéêëìíîïðñòóôõö÷øùúûüýþÿĀāĂ㥹ĆćĈĉĊċČčĎďĐđĒēĔĕĖėĘęĚěĜĝĞğĠġĢģĤĥĦħĨĩĪīĬĭĮįİıIJijĴĵĶķĸĹĺĻļĽľĿŀŁłŃńŅņŇňʼnŊŋŌōŎŏŐőŒœŔŕŖŗŘřŚśŜŝŞşŢţŤť";
//public const string Base256Code = "!#$%&'()*+,-./0123456789:;<=>?@ABCDEFGHIJKLMNOPQRSTUVWXYZ[]^_`abcdefghijklmnopqrstuvwxyz{|}~¡¢£¤¥¦§¨©ª«¬®¯°±²³´µ¶·¸¹º»¼½¾¿ÀÁÂÃÄÅÆÇÈÉÊËÌÍÎÏÐÑÒÓÔÕÖ×ØÙÚÛÜÝÞßàáâãäåæçèéêëìíîïðñòóôõö÷øùúûüýþÿĀāĂ㥹ĆćĈĉĊċČčĎďĐđĒēĔĕĖėĘęĚěĜĝĞğĠġĢģĤĥĦħĨĪīĬĭĮįİıIJijĴĵĶķĸĹĺĻļĽľĿŀŁłŃńŅņ";
//todo unused
//const string Base64Code = "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/=";
public static string EncryptToBase64(Guid key, string plainInput, byte[] confusionCode)
{
if (string.IsNullOrEmpty(plainInput) || key == null || key == Guid.Empty || confusionCode.Length != MaxLegnth)
{
return(string.Empty);
}
byte[] plainBytes = SecureUtf8Encoding.GetBytes(plainInput);
var encryptBytes = EncryptToBase256(plainBytes, confusionCode);
var bytes = key.ToByteArray().Concat(encryptBytes);
return(Base64Encoders.Base64Encode(bytes.ToArray()));
}