Modified AES based algorithm for MPEG video encryption

Deshmukh, Pooja; Kolhe, Vaishali

doi:10.1109/icices.2014.7033928

Cited by 26 publications

(9 citation statements)

References 4 publications

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“…In the encryption process, each round of the AES encryption loop consists of four steps, which are: Addroundkey transform, SubBytes transform, ShiftRows transform, and mixed column transform [26]. Before looping through the four steps, we initialize the Addroundkey.…”

Section: Advanced Encryption Standardmentioning

confidence: 99%

A Privacy-Protected Image Retrieval Scheme for Fast and Secure Image Search

Wang

Cheng

et al. 2020

Symmetry

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With the development of multimedia technology, the secure image retrieval scheme has become a hot research topic. However, how to further improve algorithm performance in the ciphertext needs to be further explored. In this paper, we propose a secure image retrieval scheme based on a deep hash algorithm for index encryption and an improved 4-Dimensional(4-D)hyperchaotic system. The main contributions of this paper are as follows: (1) A novel secure retrieval scheme is proposed to control data transmission. (2) An improved 4-D hyperchaotic system is proposed to preserve privacy. (3) We propose an improved deep pairwise-supervised hashing (DPSH) algorithm and secure kNN to perform index encryption and propose an improved loss function to train the network model. (4) A secure access control scheme is shown, which aims to achieve secure access for users. The experimental results show that the proposed scheme has better retrieval efficiency and better security.

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Section: Advanced Encryption Standardmentioning

confidence: 99%

A Privacy-Protected Image Retrieval Scheme for Fast and Secure Image Search

Wang

Cheng

et al. 2020

Symmetry

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“…In [4] and [5], following evaluation on video encryption, the AES was reportedly the fastest of these standard encryption algorithms. Furthermore, according to some studies, including [6], the AES reduces the computational complexity to an extent. However, the overall improvement is marginal because the overall complexity of the AES is determined by the size of the input data.…”

Section: A Naïve Encryption Algorithmmentioning

confidence: 99%

Start Code-Based Encryption and Decryption Framework for HEVC

Lee

Jang

2020

IEEE Access

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In this paper, we propose a new selective encryption and decryption framework based on the start code for high efficiency video coding. There is a growing need to encrypt video information to protect video content from privacy invasion and intellectual property infringement caused by information leakage. Although encrypting an entire video is a straightforward approach, the cost to encrypting a large amount of video data is substantial, considering the resulting computational complexity. Consequently, selective encryption algorithms have been actively researched in recent years and have contributed to reducing the computational complexity. However, existing selective encryption algorithms have certain drawbacks. For instance, it is difficult to separate the video encryption algorithm from the video compression algorithm because the encryption framework is based on the syntax elements. Further, a partial reconstruction of the encrypted video bitstream is often unavoidable. To solve these problems, the proposed method encrypts encrypted the bitstream based on the start code rather than on the syntax elements. Encrypting the bitstream partially, based on the start code, makes it easy to separate the video encryption algorithm from the video compression algorithm. Furthermore, encrypting the part adjacent to the start code protects the video content, as video reconstruction using a video decoder is impossible, unless the correct start code is returned to the bitstream. The experimental results show that the proposed method reduced the encryption and decryption times by approximately 97% and 98%, respectively, compared to the encryption and decryption of the entire video bitstream. INDEX TERMS High efficiency video coding, selective encryption algorithms, start code, video encryption.

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“…The main advantage of FPGAs is concurrent processing, where all the hardware modules work concurrently. This enables any number of modules implemented on FPGA to run simultaneously [14].…”

Section: Field Programmable Gate Arrays (Fpga)mentioning

confidence: 99%

FPGA Implementation of Non-Linear Cryptography

Prabakar¹,

Lakshmi²,

Seetharaman³

2016

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The paper focuses on the design and Field Programmable Gate Array (FPGA) implementation of embedded system for time based dual encryption scheme with Delay Compulsion Function (DCF) and also illustrates the application of DCF in time based cryptography. Further, the strength of the time based FPGA encryption algorithm with and without using DCF is analyzed using a Nios II processor. This proposed scheme enhances the security of vital data against Brute force attack by incorporating a temporal key distribution where two different keys encrypt the data simultaneously, one being the regular key and the other being the time. The time is included using a dynamically varying number of shifts thereby allowing the system to wait for the duration and this forms the second dimension of the key. Presently, available encryption systems suffer from Brute Force attack in which all the key combinations are tried in order to find the correct key. In such a case, the time taken for breaking the key depends on the speed of the system used for cryptanalysis. The proposed system adds complexity by using dynamically varying sequence of operations, by including the time as a second dimension of the key besides minimizing the possibility of Brute Force attack and increasing the time required for cryptanalysis irrespective of the system capability. As the proposed system needs concurrent execution and real time processing, the system is implemented using Altera Stratix II FPGA and the results are presented.

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Modified AES based algorithm for MPEG video encryption

Cited by 26 publications

References 4 publications

A Privacy-Protected Image Retrieval Scheme for Fast and Secure Image Search

A Privacy-Protected Image Retrieval Scheme for Fast and Secure Image Search

Start Code-Based Encryption and Decryption Framework for HEVC

FPGA Implementation of Non-Linear Cryptography

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