General information

The function of 'AGUTA Text Encrypter' software is encrypting and decrypting of text information. The encrypted text is embedded into a bitmap image file of BMP format. The image file size stays the same after encryption, as the encrypted text is written directly into the image color components.

Cryptographic method

Besides the source text is broken into individual bits and is spread across the image, the text also gets encrypted beforehand with a ciphertext, for which the key is the password you have entered. The longer password you enter, the less are the chances for the attacker to reveal the original text.

If the password is not specified, encryption is still performed, but using a fixed key. Please note that encrypting large texts (more than 100KB) will require a significant time. Time is what you have to pay for the safety of your information.