PARTIAL IMAGE ENCRYPTION USING DCT IMAGE-BASED DES ALGORITHM

Abstract

Recently, there has been a lot of interest in the DES algorithm, due to its importance in data encryption. DES and PIN code are always synonymous, DES has also been adopted in non-digital media such as phone lines, audio audiences and the banking industry. One of the advantages of the DES algorithm is that it works on binary numbers (1s, 0s) and bits. In our proposal, we present a new method for partial encryption-images by a specific approach from the frequencies of DCT coefficients. The best solution to such risks is encryption of all data of these applications, this procedure is inconvenient when dealing with images because if users want to obtain a vision of such data, they require a complete data processing for decryption, which requires a large processing capacity. In this paper, we show how partial encoding can meet application requirements without full encoding load, in the introduction paragraph, reference is made to diagrams explaining the combination of image coding and coding. Then, accreditation is an approach that implements partial image encoding based on JPEG. This procedure is based on a technique that aims to perform two basic conditions: The first is to keep the value of the public bit, while the second is to keep agreeing with JPEG format. We present a new proposal that includes multiple coding, enforceability, self-sufficiency, spatial selectivity, and coordination compliance. We also show how the application needs are met in real-time. When comparing this style with other technology as quad tree AES. Keywords: Partial Encryption, DCT, Selective Encryption, Pluralism DOI： https://doi.org/10.35741/issn.0258-2724.58.1.49