Stegano Secrets - Python
1 like1,116 views
The document discusses steganography, which is hiding secret messages within other harmless-looking files or messages. It describes how steganography embeds information in a way that prevents unauthorized parties from even knowing a hidden message has been sent. The document outlines some common techniques for hiding information in digital images, such as modifying least significant bits or using masking and filtering algorithms. It also notes that steganography can be used for confidential communication and secret data storage. Finally, it discusses how Python can be used to implement steganography, listing several Python modules like binascii, getpass, simplecrypt, and Pillow that are useful for steganography applications.
Stegano Secrets - Python
- 1. Stegano Secrets - Python Santhosh Baswa Cyber Security Enthusiast santhosh.nuz@gmail.com October 17, 2015 Santhosh Baswa October 17, 2015 1 / 9
- 2. Introduction Steganography Steganography comes from Greek Word. It means covered or secret writing. ” Steganography = steganos (covered) + graphein (writing) ” Main Points ” The goal of steganography is to hide messages in such a way that no one apart from the intended recipient even knows that a message has been sent.” This can be achieve by concealing the existence of information within seemingly harmless carriers or cover. Santhosh Baswa October 17, 2015 2 / 9
- 3. Block diagram of Steganography Santhosh Baswa October 17, 2015 3 / 9
- 4. Steganography in Images Image Encoding Techniques The most common approaches to information hiding in images: Least Significant bit Insertion Masking and Filtering Algorithms and transformations Where we can use ? Confidential Communication Secret Data Storing Santhosh Baswa October 17, 2015 4 / 9
- 5. Practical Session Starts with Python By Using Python Python Scripting is most powerful language for Security Professionals. Syntax is too simple. Lot of 3rd party modules available. Python Modules used : We are mainly using these modules in this session: binascii (hexify) getpass sys , os simplecrypt Image,stepic Santhosh Baswa October 17, 2015 5 / 9
- 6. Modules : binascii (hexify) and getpass hexify getpass os and sys (stdin) Santhosh Baswa October 17, 2015 6 / 9
- 7. Modules : simplecrypt simplecrypt Santhosh Baswa October 17, 2015 7 / 9
- 8. Modules : Image , Stepic Image - Stepic Santhosh Baswa October 17, 2015 8 / 9
- 9. Final Program Source code Santhosh Baswa October 17, 2015 9 / 9