Tag Archives: decryption

Use steganography to hide one large picture inside another in C#

The example Use steganography to hide one picture inside another in C# explains how you can hide one image inside another. This example uses the same tools to hide a large image inside another large image so you can get … Continue reading

Posted in algorithms, cryptography, graphics, image processing, mathematics | Tagged , , , , , , , , , , , , , , , , , , | Leave a comment

Use steganography to hide one picture inside another in C#

The example Use steganography to hide messages in an image in C# hides message bits in the least-significant color bits of randomly selected pixels within an image. The idea is that small changes to the least significant bits of a … Continue reading

Posted in algorithms, cryptography, graphics, image processing, mathematics | Tagged , , , , , , , , , , , , , , , , , , | 22 Comments

Use steganography to hide messages in an image in C#

Steganography is the science of hiding information within other information. For example, a watermark “hides” an image on a piece of paper. If you look at most paper currency at a low angle or if you hold it up to … Continue reading

Posted in algorithms, cryptography, graphics, image processing, mathematics | Tagged , , , , , , , , , , , , , , , , , , | 1 Comment

Encrypt or decrypt files in C#

The following EncryptFile and DecryptFile methods encrypt or decrypt files at a very high level. // Encrypt or decrypt a file, saving the results in another file. public static void EncryptFile(string password, string in_file, string out_file) { CryptFile(password, in_file, out_file, … Continue reading

Posted in cryptography, files | Tagged , , , , , , , , , , , | 7 Comments