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[zachman61]

How can i create a file ex (.dlx)*random extension*.
With encrypted data so the user can't open in a .txt file.
For example if someone opened it, it would look like this:

Code: Select all

ÃÑr&àùÃ3_#Ÿªž;K‘Ä6ÉxQåÍo¨úlµÔ}@["µ¾EäÇËà bÀ·Öð¨X›>9j=›ýÎñLð-{©–y»]Ù: à½_¼ûw˜è“ˆC}˜íU¬¡B

[MrAksel]

You could use IO.File.Encrypt, it ensures that only the user that encrypted it can open or decrypt it. You could also use the Cryptography namespace inside System.Security. Here is an example

Code: Select all

        Dim Holder As New TripleDESCryptoServiceProvider  'There are many others too
        Holder.Key = System.Text.Encoding.ASCII.GetBytes("Password") 'Either 8 or 16 to 24 characters
        Holder.GenerateIV()
        Dim Encrypter As ICryptoTransform = Holder.CreateEncryptor

        Dim FileStream As New IO.FileStream("File Path", IO.FileMode.Open, IO.FileAccess.Read)
        Dim FileData(FileStream.Length) As Byte
        FileStream.Read(FileData, 0, FileStream.Length)
        FileStream.Close()

        Dim Encrypted As Byte() = Encrypter.TransformFinalBlock(FileData, 0, FileData.Length)

        IO.File.WriteAllBytes("File Path", Encrypted)
        Holder.Dispose()
        Encrypter.Dispose()

Just import System.Security.Cryptography first

To decrypt it use this:

Code: Select all

        Dim Holder As New TripleDESCryptoServiceProvider  'There are many others too
        Holder.Key = System.Text.Encoding.ASCII.GetBytes("Password") 'Either 8 or 16 to 24 characters
        Dim Decryptor As ICryptoTransform = Holder.CreateDecryptor

        Dim FileStream As New IO.FileStream("File Path", IO.FileMode.Open, IO.FileAccess.Read)
        Dim FileData(FileStream.Length) As Byte
        FileStream.Read(FileData, 0, FileStream.Length)
        FileStream.Close()

        Dim Decrypted As Byte() = Decryptor.TransformFinalBlock(FileData, 0, FileData.Length)

        IO.File.WriteAllBytes("File Path", Decrypted)
        Holder.Dispose()
        Decryptor.Dispose()

Oh dang... Its C#! Well wait a minute... :evil:

[zachman61]

You could use IO.File.Encrypt, it ensures that only the user that encrypted it can open or decrypt it. You could also use the Cryptography namespace inside System.Security. Here is an example

Code: Select all

        Dim Holder As New TripleDESCryptoServiceProvider  'There are many others too
        Holder.Key = System.Text.Encoding.ASCII.GetBytes("Password") 'Either 8 or 16 to 24 characters
        Holder.GenerateIV()
        Dim Encrypter As ICryptoTransform = Holder.CreateEncryptor

        Dim FileStream As New IO.FileStream("File Path", IO.FileMode.Open, IO.FileAccess.Read)
        Dim FileData(FileStream.Length) As Byte
        FileStream.Read(FileData, 0, FileStream.Length)
        FileStream.Close()

        Dim Encrypted As Byte() = Encrypter.TransformFinalBlock(FileData, 0, FileData.Length)

        IO.File.WriteAllBytes("File Path", Encrypted)
        Holder.Dispose()
        Encrypter.Dispose()

Just import System.Security.Cryptography first

To decrypt it use this:

Code: Select all

        Dim Holder As New TripleDESCryptoServiceProvider  'There are many others too
        Holder.Key = System.Text.Encoding.ASCII.GetBytes("Password") 'Either 8 or 16 to 24 characters
        Dim Decryptor As ICryptoTransform = Holder.CreateDecryptor

        Dim FileStream As New IO.FileStream("File Path", IO.FileMode.Open, IO.FileAccess.Read)
        Dim FileData(FileStream.Length) As Byte
        FileStream.Read(FileData, 0, FileStream.Length)
        FileStream.Close()

        Dim Decrypted As Byte() = Decryptor.TransformFinalBlock(FileData, 0, FileData.Length)

        IO.File.WriteAllBytes("File Path", Decrypted)
        Holder.Dispose()
        Decryptor.Dispose()

Oh dang... Its C#! Well wait a minute... :evil:

I'll try and convert it

[MrAksel]

I cant finish it now, but im nearly done with an example app

Edit, Here it is:

ICryptoTransform.zip

Its a command line app. If you want to encrypt a file, add this to the startup commands encrypt "FILENAME" Filename inside the quotes.
To decrypt just change encrypt to decrypt

[MrAksel]

Zach, you got it? I got a nice command line app for you.
You can now encrypt multiple files at the same time. Just add those arguments
encrypt (or decrypt) "File1" "File2" "File3" Just separate the file names with spaces and put them in quotes.

[zachman61]

Zach, you got it? I got a nice command line app for you.
You can now encrypt multiple files at the same time. Just add those arguments
encrypt (or decrypt) "File1" "File2" "File3" Just separate the file names with spaces and put them in quotes.

Im going to be using the decrypt and encrypt for a game. the file will be the dlc information being read