Hardware cryptography for ubiquitous computing

Fukase, Masa-aki; Akaoka, R.; Liu, Lei; Shu, Cheng Tong; Sato, Tomoaki

doi:10.1109/iscit.2005.1566897

Cited by 9 publications

(5 citation statements)

References 5 publications

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“…The cipher transformation due to simple memory access by the output of a built-in RNG is really dedicated for ubiquitous security [4][5]. HCgorilla is a hardware cryptography-embedded multimedia mobile processor unified Java features with RAP [6][7][8]. We have also exploited a hardware cryptography-embedded multimedia mobile system composed of HCgorilla and its software support system [9], [10].…”

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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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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“…We applied HCgorilla to image cryptography [9]. The cryptographic streaming of multimedia data was further described in detail [10]. Then, the cryptographic streaming or ubiquitous cryptography, RAC was exploited in cooperation with the continuous improvement of HCgorilla and the development of its software support [8].…”

Section: Introductionmentioning

confidence: 99%

Compact FPU Design and Embedding in a Ubiquitous Processor for Multimedia Performance Enhancement

Fukase

Sato

2007

ECTI-EEC

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The key to protect huge amount of multimedia data in ubiquitous networks is to introduce safety aware high-performed single VLSI processor systems embedded with cipher process. Thus, we exploited the architecture of a hardware cryptography embedded multimedia mobile processor named HC-gorilla by sophisticatedly unifying up-to-date processor techniques. Although it was provided with carefully selected Java bytecodes and cipher codes, FP (floating point) expression was omitted due to the restriction of hardware resource. Considering recent trend of embedded applications like voice recognition, 3D graphics, and image/vision processing, FP hardware is crucial for further enhancing HCgorillafs Java functions. We focus in this article the development of a compact FPU (Floating point number Processing Unit). A compact FP format speci¯c for HCgorilla is IEEE 754 compatible except the bit width representation of FP data. Prioritizing the latency of FPU, it has only 5 stages. The compact FPU is built in HCgorilla by adding 16 FP arithmetic codes and improving the decode stage of the previous HCgorilla. By using a 0.18-¹m standard cell CMOS technology supported by VDEC, we have so far accomplished the logic synthesis and behavior simulation. The 400MHz of clock frequency is justified from delay analysis.

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“…In order to implement RAC in cooperation with media processing, we have developed a ubiquitous processor named HCgorilla [5][6][7][8][9] and its software support [10]. HCgorilla is a single chip multimedia mobile processor followed H/S (Hardware/Software) co-design to unify sophisticated techniques like strong hardware security, low power, high throughput, and Java features [10][11][12].…”

Section: Introductionmentioning

confidence: 99%

“…HCgorilla is a single chip multimedia mobile processor followed H/S (Hardware/Software) co-design to unify sophisticated techniques like strong hardware security, low power, high throughput, and Java features [10][11][12]. HCgorilla has double cores with two cipher pipes and Java compatible four media pipes.…”

Section: Introductionmentioning

confidence: 99%

Innovative Ubiquitous Cryptography and Sophisticated Implementation

Fukase

Sato

2006

2006 International Symposium on Communications and Information Technologies

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Contemporary ubiquitous network has a doubleedged sword or alternative aspects, diversity and threat. While worldwide diversity of ubiquitous platforms has really contributed to enhancing the amenity of our daily life, it is also the cause of illegal attack, intrusion, pretension, etc. Current provisions for information security do not always fulfill overall demands required to ever-growing ubiquitous community. In order to keep usability and achieve safety, we have exploited ubiquitous cryptography named RAC (random numberaddressing cryptography). This is an innovative common key technique and has more promising performance than block cipher like DES and AES. Although RAC can be run on any platform, a dedicated processor is more preferable in order to achieve sufficient speed, performance, and strength in the cryptographic streaming of large quantity of ubiquitous information. In order to distinguish these features without deteriorating media processing, we have developed a ubiquitous processor named HCgorilla and its software support. It is a single chip multimedia mobile processor unified sophisticated features of RAC and processor techniques useful for low power, high throughput, and Java. The system combined HCgorilla and the software support works well for media processing as well as ubiquitous cryptography.

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Hardware cryptography for ubiquitous computing

Cited by 9 publications

References 5 publications

A Stream Cipher Engine for Ad-Hoc Security

A Stream Cipher Engine for Ad-Hoc Security

Compact FPU Design and Embedding in a Ubiquitous Processor for Multimedia Performance Enhancement

Innovative Ubiquitous Cryptography and Sophisticated Implementation

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