Development of a Multimedia Stream Cipher Engine

Fukase, Masa-aki; Takeda, H.; Tenma, Ryo; Kazunori, Noda; Sato, Yohei; Sato, Ryota; Sato, Tomoaki

doi:10.1109/ispacs.2006.364718

Cited by 8 publications

(6 citation statements)

References 8 publications

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“…The random numbers are generated by the recipient as addresses to resort the received ciphertext. Assuming the stream cipher engine in [10] works in a pipeline, then it is able to encrypt and decrypt 1 byte every clock cycle with throughput up to 3.2 Gps. Nevertheless, considering that the data from the sender or to the recipient should be stored in a RAM for reorganization, so the real decryption throughput may be only a half, let alone the time for fetching instructions.…”

Section: Comparisonmentioning

confidence: 99%

“…For example, the Rakaposhi stream cipher consists of a 128-bit nonlinear feedback shift register, a 192-bit dynamic linear feedback shift register, and a nonlinear filter function [9]. Ubiquitous environments demands security, speed and power consciousness in processing huge amount of multimedia data [10], in which stream cipher can be used. Stream cipher is an engine that generates bit streams to mix the message.…”

Section: Introductionmentioning

confidence: 99%

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Stream Cipher by Reed-Solomon Codes

Wu¹,

Wang²

2018

Adv. sci. technol. eng. syst. j.

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Section: Comparisonmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Stream Cipher by Reed-Solomon Codes

Wu¹,

Wang²

2018

Adv. sci. technol. eng. syst. j.

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“…[3]. Then, the SISD (single instruction stream single data stream) mode of RAP has been improved by a stream cipher engine that executes SIMD (single instruction stream multiple data stream) mode cipher [4,5]. This has caused the drastic improvement of throughput.…”

Section: Introductionmentioning

confidence: 99%

Exploring the Optimum Buffer Size of an Emerging Stream Cipher Engine

Fukase

Sato

2009

ECTI-EEC

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One of crucial points for further improving ubiquitous network is to enhance temporary security without relying on permanent network infrastructure. Since a practical solution to provide such ubiquitous security is a safety aware, high-performed single chip processor, a multimedia stream cipher engine has been exploited. In order to keep security, usability, speed, and power consciousness, the stream cipher engine takes a compact multicore architecture. Each core implements a double cipher scheme that covers RAC (random addressing cryptography) and data sealing. The double cipher is microarchitecture based, software-transparent hardware cryptography that offers the protection of the whole data with negligible hardware cost and moderate performance overhead. Stream cipher engine chips have been developed by using 0.18-m standard cell CMOS technologies. Through the rough evaluation of those chips, it has emerged that streaming buffer size is crucial for prospective specifications. In order to achieve sophisticated design strategy, this paper evaluates in detail the buffer size dependency of power dissipation, clock speed, running time, and throughput, focusing on the latest version of the stream cipher engine chip. From the tradeoff between these specificative factors, the guideline of optimum buffer size is made clear in view of safety and performance for ubiquitous computing.

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“…Abstracting the potential feature of RAC from RAP and HCgorilla, we logically synthesized a multimedia stream cipher engine and verified the cryptographic streaming based on SIMD (single instruction stream multiple data stream) instructions [12]. The stream cipher engine has the parallelism of multicore to achieve power conscious high-speed performance.…”

Section: Introductionmentioning

confidence: 99%

A Stream Cipher Engine for Ad-Hoc Security

Fei¹,

Xiao²,

Shui-sheng³

et al. 2007

2007 International Conference on Computational Intelligence and Security (CIS 2007)

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Overall demands of ever growing ubiquitous environment are security, speed, and power consciousness in processing huge amount of multimedia data. Especially, the critical issue is the security threat due to the spread of mobile platforms. Then, ad-hoc security is very important to keep the temporary security of ubiquitous devices without permanent network infrastructure. A practical solution to meet these demands is a safety aware, highperformed single chip processor. According to this scheme, we have exploited hardware cryptographyembedded processors named RAP (random addressing-accelerated processor) and HCgorilla. We have conceived from RAP and HCgorilla a cryptography called RAC (random addressing cryptography). RAC is a practical cipher promising for multimedia streaming that has ability to keep the temporary security of ubiquitous devices without usual network infrastructure. Abstracting the potential feature of RAC from RAP and HCgorilla, we have developed a multimedia stream cipher engine that has a compact multicore processor structure. In this article, we describe the overall architecture and cryptographic structure of the stream cipher engine, RAC run on the stream cipher engine and its ad-hoc aspects compared with usual cipher techniques.

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Development of a Multimedia Stream Cipher Engine

Abstract: Ever growing ubiquitous environment makes overall demands for security, speed, and power consciousness in

Cited by 8 publications

References 8 publications

Stream Cipher by Reed-Solomon Codes

Stream Cipher by Reed-Solomon Codes

Exploring the Optimum Buffer Size of an Emerging Stream Cipher Engine

A Stream Cipher Engine for Ad-Hoc Security

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