A New Method of Image Encryption/Decryption via Voice Features

2009 ◽  
Author(s):  
Zhiwei He ◽  
Yuanyuan Liu ◽  
Xueyi Ye ◽  
Haibin Yu
Keyword(s):  
Image Encryption ◽  
New Method ◽  
Encryption Decryption

scholarly journals A Simple, Accurate and Highly Secure Method to Encrypt-Decrypt Digital Images

2019 ◽  
Vol 3 (3) ◽  
Author(s):  
Jamil Al-Azzeh ◽  
Ziad Alqadi ◽  
Qazem Jaber
Keyword(s):  
Image Encryption ◽  
Digital Image ◽  
Digital Images ◽  
New Method ◽  
Naked Eye ◽  
Highly Efficient ◽  
Encryption Decryption ◽  
Digital Image Encryption

 The digital image may be important and has a secret character, which requires not understanding it when looking at the naked eye or not understanding the contents. So seeking a method of digital image encryption-decryption is a very important task.In this paper we will introduce a new method of digital image encryption-decryption, which will be very simple, highly secure and accurate and highly efficient.

A new method for image encryption by 3D chaotic map

2018 ◽  
Vol 22 (1) ◽  
pp. 243-257 ◽  
Author(s):  
Ahmad Shokouh Saljoughi ◽  
Hamid Mirvaziri
Keyword(s):  
Image Encryption ◽  
Chaotic Map ◽  
New Method

scholarly journals FPGA Implementation of Improved Security Approach for Medical Image Encryption and Decryption

2021 ◽  
Vol 2021 ◽  
pp. 1-20
Author(s):  
Amal Hafsa ◽  
Mohamed Gafsi ◽  
Jihene Malek ◽  
Mohsen Machhout
Keyword(s):  
Image Encryption ◽  
Medical Image ◽  
Logistic Map ◽  
Security Analysis ◽  
Image Transmission ◽  
Random Permutation ◽  
Pseudorandom Number Generator ◽  
Cryptographic Algorithm ◽  
Encryption Decryption ◽  
Experimental Findings

Securing medical images is a great challenge to protect medical privacy. An image encryption model founded on a complex chaos-based Pseudorandom Number Generator (PRNG) and Modified Advanced Encryption Standard (MAES) is put forward in this paper. Our work consists of the following three main points. First, we propose the use of a complex PRNG based on two different chaotic systems which are the 2D Logistic map in a complex set and Henon’s system in the key generation procedure. Second, in the MAES 128 bits, the subbytes’ operation is performed using four different S-boxes for more complexity. Third, both shift-rows’ and mix-columns’ transformations are eliminated and replaced with a random permutation method which increases the complexity. More importantly, only four rounds of encryption are performed in a loop that reduces significantly the execution time. The overall system is implemented on the Altera Cyclone III board, which is completed with an SD card interface for medical image storage and a VGA interface for image display. The HPS software runs on μClinux and is used to control the FPGA encryption-decryption algorithm and image transmission. Experimental findings prove that the propounded map used has a keyspace sufficiently large and the proposed image encryption algorithm augments the entropy of the ciphered image compared to the AES standard and reduces the complexity time by 97%. The power consumption of the system is 136.87 mw and the throughput is 1.34 Gbit/s. The proposed technique is compared to recent image cryptosystems including hardware performances and different security analysis properties, such as randomness, sensitivity, and correlation of the encrypted images and results prove that our cryptographic algorithm is faster, more efficient, and can resist any kind of attacks.

Secured Image encryption/decryption using advanced 4 out of 8 code

2020 ◽  
Vol 68 (4) ◽  
pp. 145-150
Author(s):  
Rahul Siddhartha ◽  
Raghav Jhawar ◽  
Harsh Saxena
Keyword(s):  
Image Encryption ◽  
Encryption Decryption
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