DIGITAL IMAGE ENCRYPTION BASED ON BEAUFORT CIPHER AND AFFINE CIPHER SYMMETRICAL ALGORITHM ENCRYPTION
Abstract
This study aims to secure digital image files by applying a combination of two symmetric encryption algorithms, namely Beaufort Cipher and Affine Cipher. The encryption process is carried out in two stages, where the digital image is encrypted using the Beaufort Cipher algorithm, then the encryption result is re-encrypted using Affine Cipher. The results of the study show that encryption-based digital image security by applying the Beaufort Cipher and Affine Cipher symmetric algorithms can significantly increase the level of image security. The double encryption process involving these two algorithms can create an additional layer of security that makes it difficult for unauthorized parties to decrypt. By combining the strengths of these two algorithms, digital images can be protected from various threats, including illegal access and data theft.
