Modified Caesar Cipher and Card Deck Shuffle Rearrangement Algorithm for Image Encryption

ABSTRACT

In today's social networking era, information security breaches are at an all-time high, especially when it comes to texts and images, which should come as no surprise. Integrity is therefore crucial for information sharing over an unprotected connection. As a result, image/text encryption is a crucial preprocessing step in today's information transmission. Sensitive information may be sent via image encryption, which facilitates a variety of procedures. Here the proposed method is a combination of the Modified Caesar Cipher and the Card Deck Shuffle Algorithm for image encryption. The Card Deck Shuffle Algorithm rearranges the pixels from the result of the Modified Caesar approach, which encrypts the pixel value of each image. The method employs an n + 8 variable bit key (n is frequently more than 18 in real-world applications), which needs more than $2^{26}$ brute force attacks to be successful. The method described here may be used to secure images in a variety of multimedia applications.

KEYWORDS:

• Cryptography
• image encryption
• Caesar Cipher
• Card Deck Shuffle Rearrangement
• internet security

Disclosure statement

No potential conflict of interest was reported by the author(s).