BmpPwd

BmpPwd is a Class Library for en/decrypting Text and visualizing it with a System.Drawing.Bitmap
Applications like LaZagne can easily find stored (and encrypted) Passwords from various Applications. To prevent this, BmpPwd will convert your Text with your En/Decryption Algorithm of choice (Default: Cipher) to a System.Drawing.Image which contains your Text.
To decrypt a BmpPwd-Encrypted Image, a Program must know:

• Location of the stored Image
• BmpPwd Encryption Shape/Drawing Scheme
• BmpPwd Encryption Color Scheme
• BmpPwd Decryption Method
• En/Decryption Algorithm (Default: Cipher)
• Pass-Phrase/Salt for En/Decryption Algorithm

Download the Demo (.zip)

How to use

1. Add Binaries

• NuGet
  • BmpPwd is also available on NuGet! Install by typing Install-Package BmpPwd in NuGet Package Manager Console. (Or search for BmpPwd on NuGet)
• Manually
  1. Download the latest Library (.dll)
  2. Add the .dll to your Project (Right click References in the Project Tree View, click Add References and Browse to the .dll File)

2. Add the reference

• C#:
  

  
      using mrousavy.Cryptography;
      

• VB:
  

  
      Imports mrousavy.Cryptography
      

3. Encrypt a string

• C#:
  

  
      //Needs Reference to System.Drawing dll
      System.Drawing.Bitmap encryptedBitmap = BmpPwd.Encrypt("MyPassword", "The string to be encrypted");
      

• VB:
  

  
      //Needs Reference to System.Drawing dll
      Dim encryptedBitmap As System.Drawing.Bitmap = BmpPwd.Encrypt("MyPassword", "The string to be encrypted")
      

4. Decrypt an Image

• C#:
  

  
      //Needs Reference to System.Drawing dll
      string decryptedText = BmpPwd.Decrypt("MyPassword", encryptedBitmap);
      

• VB:
  

  
      //Needs Reference to System.Drawing dll
      Dim decryptedText As String = BmpPwd.Decrypt("MyPassword", encryptedBitmap)
      

5. Import your own Encryption

• C#:
  

  
          public class MyCryptoClass : ICrypto {
            ...
          }
      

• VB:
  

  
          Public Class MyCryptoClass
            Implements ICrypt
            ...
          End Class
      

6. Use custom Parameters:

• C#:
  

  
          System.Drawing.Bitmap encryptedBitmap = BmpPwd.Encrypt("MyPassword", "The string to be encrypted", new MyCryptoClass(), BmpPwd.DrawingScheme.Square, BmpPwd.ColorScheme.BlueMixed);
      

• VB:
  

  
          Dim encryptedBitmap As System.Drawing.Bitmap = BmpPwd.Encrypt("MyPassword", "The string to be encrypted", new MyCryptoClass(), BmpPwd.DrawingScheme.Square, BmpPwd.ColorScheme.BlueMixed);
      

Screenshots

Thanks for using BmpPwd!