Implementation of advanced encryption standard for file security in stego-object

Security issues and data confidentiality are very important in the digital and internet era today. Important files circulating on the internet, both in the form of documents, images, and videos need to be supported with good security. This article aims to secure files by utilizing steganography technology, both in encryption and decryption of the file. The method used was the Advanced Encryption Standard (AES) which was applied to Stego-Object. Experiments were done on document files with extensions .doc, .xlsx, .pdf, and .txt, also on image files with extensions .jpeg, .png, and. bitmap. The experimental results showed that AES can encrypt and decrypt quite effectively without changing the quality of files both images and documents. This research could develop for video files.