A New Visual Cryptography Method Based on the Profile Hidden Markov Model

ÖZCAN H., KAYA GÜLAĞIZ F., ALTUNCU M. A., İLKİN S., ŞAHİN S.

ADVANCES IN ELECTRICAL AND COMPUTER ENGINEERING, cilt.21, sa.1, ss.21-36, 2021 (SCI-Expanded) identifier identifier

  • Yayın Türü: Makale / Tam Makale
  • Cilt numarası: 21 Sayı: 1
  • Basım Tarihi: 2021
  • Doi Numarası: 10.4316/aece.2021.01003
  • Dergi Adı: ADVANCES IN ELECTRICAL AND COMPUTER ENGINEERING
  • Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus, Aerospace Database, Communication Abstracts, INSPEC, Metadex, Directory of Open Access Journals
  • Sayfa Sayıları: ss.21-36
  • Anahtar Kelimeler: ciphers, cryptography, hidden Markov models, performance analysis, Viterbi algorithm, IMAGE ENCRYPTION, EFFICIENT, SYSTEMS
  • Kocaeli Üniversitesi Adresli: Evet

Özet

Digital image capturing technologies and the Internet are widely used today. These technologies make it very easy and fast to capture and share personal images in daily life. This causes difficulties in ensuring the confidentiality of private data and risks such as third persons getting hold of these data. The main goal of this study is to develop a user-friendly, powerful and effective method to encrypt digital images. For this aim, we propose a new block encryption method based on the Profile Hidden Markov Model. The method we propose consists of three main components. These are probability vector (PV), initialization vector (IV) and substitution-box (8box). Encryption is in 24-bit blocks for color images and 8-bit blocks for grayscale images. The encryption rate in the proposed block encryption method is 0.7747 Mbit/s for color images and 1.0535 Mbit/s for the grayscale images. Theoretical analysis and experimental results confirm that the proposed encryption algorithm can provide high security both for color and grayscale images.