[C#]qCrypt - Open Source Encryption

Intelext · Sep 4, 2009

qCrypt - One side encryption. It's kinda hard to decrypt it. Although if used small amount of letters it's not so hard. Very basic encryption. Feel free to modify/improve it and upload of course so everyone can see. :thumbup:

Screenshot:

Intelext - [C#]qCrypt - Open Source Encryption - RaGEZONE Forums

Download: http://yy.lv/download.php?f=69738

Example:
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I iove RaGEZONE -> 43694397774867024729779803447143

Main Form

PHP:

namespace qCrypt
{
    public partial class frmMainForm : Form
    {
        public frmMainForm()
        {
            InitializeComponent();
        }

        private void buttonEncrypt_Click(object sender, EventArgs e)
        {
            Encrypt.StartEncryption(textBoxUncrypted.Text);
            textBoxEncrypted.Text = Encrypt.ReturnString();
        }
    }
}

Encrypt

PHP:

namespace qCrypt.Classes
{
    static class Encrypt
    {
        static string FinalIntegers;
        static string EncryptText;
        static int[] MyIntArray = new int[32];

        public static void StartEncryption(string MyText)
        {
            //Uppering it just in case.
            MyText = MyText.ToUpper();

            //Making these strings empty.
            FinalIntegers = string.Empty;
            EncryptText = string.Empty;

            //Main loop where checking each letter.
            for (int i = 0; i < MyText.Length; i++)
            {
                if (MyText[i] == 'A')
                {
                    EncryptText = "67147804386935659614295334925265";
                }

                if (MyText[i] == 'B')
                {
                    EncryptText = "40234261117512095921888831693698";
                }

                if (MyText[i] == 'C')
                {
                    EncryptText = "25554594088772765822059033491034";
                }

                if (MyText[i] == 'D')
                {
                    EncryptText = "49257666344761728762503183692300";
                }

                if (MyText[i] == 'E')
                {
                    EncryptText = "92345676992698286431550173278515";
                }

                if (MyText[i] == 'F')
                {
                    EncryptText = "93726526035464017048882091246568";
                }

                if (MyText[i] == 'G')
                {
                    EncryptText = "24590313462079242595407758509550";
                }

                if (MyText[i] == 'H')
                {
                    EncryptText = "83759930172522751880516343255280";
                }

                if (MyText[i] == 'I')
                {
                    EncryptText = "90291595376905753003909888385940";
                }

                if (MyText[i] == 'K')
                {
                    EncryptText = "37127880863226049166796151709548";
                }

                if (MyText[i] == 'L')
                {
                    EncryptText = "71461042420384157122852407900801";
                }

                if (MyText[i] == 'M')
                {
                    EncryptText = "58006678924036605768805688980313";
                }

                if (MyText[i] == 'N')
                {
                    EncryptText = "12447122735386729167866363617985";
                }

                if (MyText[i] == 'O')
                {
                    EncryptText = "36141394090474783907420403818251";
                }

                if (MyText[i] == 'P')
                {
                    EncryptText = "99248304649302231675368493493475";
                }

                if (MyText[i] == 'Q')
                {
                    EncryptText = "40735018298008298730725431001991";
                }

                if (MyText[i] == 'R')
                {
                    EncryptText = "81629254782078072283690311362428";
                }

                if (MyText[i] == 'S')
                {
                    EncryptText = "11484931118782297739315078625300";
                }

                if (MyText[i] == 'T')
                {
                    EncryptText = "80642658828236815024324663471131";
                }

                if (MyText[i] == 'V')
                {
                    EncryptText = "98185113022618718347727108401890";
                }

                if (MyText[i] == 'W')
                {
                    EncryptText = "64055954743088822242668717475581";
                }

                if (MyText[i] == 'X')
                {
                    EncryptText = "34011518510939004400504471925399";
                }

                if (MyText[i] == 'Y')
                {
                    EncryptText = "34044922747088848241238723934011";
                }

                if (MyText[i] == 'Z')
                {
                    EncryptText = "34084952747088846202261871934781";
                }

                for (int n = 0; n < 32; n++)
                {
                    //Adding.
                    MyIntArray[n] = MyIntArray[n] + Convert.ToInt32(EncryptText[n]);

                    //Checking if the value is more than 10.
                    while (MyIntArray[n] > 9)
                    {
                        MyIntArray[n] = MyIntArray[n] - 10;
                    }
                }
            }

            //Adding everything.
            for (int i = 0; i < 32; i++)
            {
                FinalIntegers = FinalIntegers + Convert.ToString(MyIntArray[i]);
            }

            //TODO - Add your own sequence here. - TODO//
        }

        //Returning encrypted text.
        public static string ReturnString()
        {
            return FinalIntegers;
        }

    }
}

jM2.me · Sep 4, 2009

It seems really cool to me. Never knew how to make such thing.
But as I understand from code it will work only for letters.
And when you try to decrypt text it will be all upper case.

Intelext · Sep 4, 2009

ProKiller002 said:
It seems really cool to me. Never knew how to make such thing.
But as I understand from code it will work only for letters.
And when you try to decrypt text it will be all upper case.

Well you can improve it so it will work with numbers and stuff. But actually it does work with numbers or any characters as long as it is not first char. It will just simply use the numbers from last letter which exists in the context. Actually I made them uppercase just for checking, it does not matter upper or lower. This program is not case-sensitive so does not matter at all.

jM2.me · Sep 4, 2009

Intelext said:
Well you can improve it so it will work with numbers and stuff. But actually it does work with numbers or any characters as long as it is not first char. It will just simply use the numbers from last letter which exists in the context. Actually I made them uppercase just for checking, it does not matter upper or lower. This program is not case-sensitive so does not matter at all.

Ohh I see. Then I must learn more to understand it better

Ron · Sep 4, 2009

Encryption is useless without being able to decrypt it.

Intelext · Sep 5, 2009

Ron said:
Encryption is useless without being able to decrypt it.

Now this is just wrong.

It's not useless, it is used in passwords. When user enters it's password and encrypted password is compared with db password. Like MD5. It's also decryptable as far as I know. You can only guess the password using bruteforce or directory lookup.

SimpleBB · Sep 8, 2009

Why did you change it to upper?
You can just do

Code:

if(MyText[i] == 'A' || MyText[i] == 'a')

etc.

This is more like a hash than an encryption. O_O

Intelext · Sep 8, 2009

SimpleBB said:
Why did you change it to upper?
You can just do

Code:

if(MyText[i] == 'A' || MyText[i] == 'a')

etc.

This is more like a hash than an encryption. O_O

It's because I want to change every letter in the text. Not just A, or B.

jM2.me · Sep 8, 2009

Btw numbers for each letter are completely random right?

Intelext · Sep 8, 2009

ProKiller002 said:
Btw numbers for each letter are completely random right?

Yes, no algorithm was made during number creation.

You can create random numbers for each letter at program start, but then encrypted text will be useless if you restart the application.

jM2.me · Sep 8, 2009

I thought about generating random numbers each time but add like 4 characters specifying how numbers were generated or something like that.
Will that work? And will it be useful?

Intelext · Sep 8, 2009

Well you need to figure it out by yourself. If you will generate numbers and add 4 to the end.. Well you will need to read only those last 4 if you want encryption to be the same every time. Otherwise it's cool to generate everything randomly each start.

Try it, then make it better, then try again and make it even more better.

jMerliN · Sep 10, 2009

Intelext said:
Now this is just wrong.

It's not useless, it is used in passwords. When user enters it's password and encrypted password is compared with db password. Like MD5. It's also decryptable as far as I know. You can only guess the password using bruteforce or directory lookup.

This isn't encryption. It's not 100% reversible but it is incredibly weak, so it's also not suitable for a hash.

Why don't you get a book on encryption algorithms and read up a bit on some math before you try and make your own encryption algorithm?

Intelext · Sep 11, 2009

jMerliN said:
Why don't you get a book on encryption algorithms and read up a bit on some math before you try and make your own encryption algorithm?

I have no point in making one. This was just for fun.

ThePhailure772 · Sep 11, 2009

This isn't actually encryption at all. You're just giving a random number for a letter. Example for a BASIC encryption:

PHP:

public void Encrpyt (ref byte[] bArray, Int32 nIndex, Int32 nSize)
{
   if (nSize < 0) return;
   for (int i = nIndex; i < nSize; ++i)
        bArray[i] = ~((bArray[i] << 3) | (bArray[i] >> 5)&0xff);
}

Like I said, that's veryyyyyyyy basic.

ExploitR · Sep 24, 2009

This is just substitution so its more like a cipher..And it has no real use since for each letter is replaced with something massive, imagine a 12 character pass "encrypted" with this, the field in the db would have to hold like 120 characters..

FrostElite · Sep 28, 2009

why not use a switch inside the forloop instead of all those ifs?

Supicioso · Sep 28, 2009

He could also use case instead of if. lol.

---------- Post added at 09:59 PM ---------- Previous post was at 09:56 PM ----------

I wonder.. could this be used to encrypt a file?

FrostElite · Sep 28, 2009

JaredT said:
He could also use case instead of if. lol.

---------- Post added at 09:59 PM ---------- Previous post was at 09:56 PM ----------

I wonder.. could this be used to encrypt a file?

cases are inside switch statements :tongue:

Phant0m · Sep 28, 2009

A good encryption system should have a password, and from that password the encryption for the text should be made. That way there is no way in hell some one can break it without threatening you

Still very good though

[C#]qCrypt - Open Source Encryption

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