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2018 International Symposium on Communication Engineering & Computer Science(CECS 2018)

作者： Yanfeng Li Runtong Zhang School of Economics and Management Beijing Jiao Tong University

ISBN: (纸本)9781510873919

IHE-XDS(Integrating the Healthcare Cross-Enterprise Document Sharing) is an interagency,involving multiple medical institutions and users,for the integration of medical information sharing *** medical information shared by the medical institutions in this framework is mainly electronic medical reports,which is an important part of the patient's diagnosis and treatment *** plays an important role in clinical diagnosis,scientific research and teaching,and to ensure its safety is the key *** the IHE-XDS specification,a role-based access control strategy is proposed to realize the secure access control of ***,with the continuous development of the open network environment,the number of users is increasing,and the role-based access control is dynamically ex-tended and *** order to achieve more flexible access control,this article presents a method of medical document information security protection oriented IHE-XDS,and designs an access control algorithm,based on cryptographic properties of multi access control algorithm,to allocate minimum privileges to users of different institutions in IHEXDS,so that the medical information can be safe and flexible to be shared.

关键词： IHE-XDS Attribute-Based encryption(ABE) encryption algorithm Privacy protection Information security

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A Survey on the Techniques of Medical Image encryption

A Survey on the Techniques of Medical Image Encryption

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IEEE International Conference on Computational Intelligence and Computing Research

作者： V. Pavithra C. Jeyamala Thiagarajar College of Engineering Madurai Tamil Nadu IN

ISBN: (纸本)9781538615096

Medical images are considered as one of the most important and sensitive data in Information systems. Sending medical images over the network requires a strong encryption algorithm such that it is resistant against cryptographic attacks. Among the three security objectives for the security of information systems namely confidentiality, integrity and availability, confidentiality is the most important aspect that need to be taken much care for the secure storage and transmission of medical images. This paper presents a comparison study of the encryption of medical images and extends an obvious scene for the researchers by examining the metrics such as PSNR (Peak signal-to-noise-ratio), MSE(Mean square error) and so on for various existing encryption techniques for medical images. This also comprises the process of analyzing the level of security, requirements and purpose of medical image encryption. This survey is useful for the researchers for the comparison of different encryption techniques implemented till date.

关键词： cryptography mean square error methods medical image processing cryptography Mean square error Medical image processing Computer based information systems Medical imaging images Medical Security Goals encryption algorithm Sensitive data

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Symmetric image encryption scheme based on multiple chaotic maps

Symmetric image encryption scheme based on multiple chaotic ...

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International Conference on Emerging Trends in Science, Engineering and Technology (INCOSET)

作者： R. Krishnamoorthy P. Murali Dept. of CSE Anna University Trichirappalli

ISBN: (纸本)9781467351416

In this paper, a new asymmetric encryption algorithm based on multiple chaotic maps with invertible matrices to encrypt the image is proposed. In order to increase the security of the image, a new shuffling algorithm is proposed based on Arnold Cat map. The combination of invertible matrices and shuffling algorithm in the image encryption provides dual layer protection. The 120 bit long secret key is used to generate the initial conditions of all chaotic maps and also the key length can be increased further to improve the security. To achieve higher security with high complexity to break the cipher image, the size of the invertible matrices can be adaptive. The results of several experimental, statistical analysis, differential analysis and key sensitivity tests show that the proposed asymmetric image encryption algorithm provides an effective way for real-time applications and transmission.

关键词： Chaos Arnold Cat Map Statistical analysis Differential analysis Sensitivity tests sensory tests chaos images Imagery (Psychotherapy) Invertible matrix Statistical methods Image encryption algorithm Reversibility maps cryptography key length Security Statistical analysis secret key

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Mit :: Lcs :: Tr :: Mit-Lcs-Tr-379

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2016年

Mit :: Lcs :: Tr :: Mit-Lcs-Tr-379 by published by

关键词： algorithm computer science cryptosystem definitions electrical engineering encryption encryption algorithm input message message space messages mit-lcs-tr-379 original definitions probabilistic probabilistic encryption probability probability distribution security semantic security silvio micali three definitions

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Akcelerace šifrovacích algoritmů pomocí FPGA

Akcelerace šifrovacích algoritmů pomocí FPGA

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作者： Gajdoš, Miroslav Brno University of Technology

Tato práce se zabývá možností akcelerace šifrovacích algoritmů pomocí rekonfigurovatelných obvodů FPGA a zkoumáním rozdílu rychlosti implementace oproti implementaci s... 详细信息

Tato práce se zabývá možností akcelerace šifrovacích algoritmů pomocí rekonfigurovatelných obvodů FPGA a zkoumáním rozdílu rychlosti implementace oproti implementaci softwarové. Práce popisuje základy šifrování a akcelerace algoritmů na FPGA. Dále se zabývá procesem návrhu, implementace, simulace a syntézy výsledné implementace. Provádí rozbor dosaženého řešení. Cílem projektu bylo vytvořit funkční řešení akcelerovaného algoritmu, tím umožnit jeho další použití v reálném provozu a dále vytvoření česky psaného materiálu o této problematice.

关键词： FPGA šifrovací algoritmus akcelerace VHDL DES FITkit Spartan 3 Virtex 5. FPGA encryption algorithm acceleration VHDL DES FITkit Spartan 3 Virtex 5. Text

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Digital image information hiding algorithm research based on LDPC code

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EURASIP JOURNAL ON IMAGE AND VIDEO PROCESSING 2018年第1期2018卷 1页

作者： Wang, Zhong-xun Meng, Xiang-cai Yantai Univ Inst Sci & Technol Optoelect Informat Yantai Peoples R China

LDPC (low-density parity-check code) is a parity check code, and its performance is very close to Shannon limit. It is a sort of good channel code which has good ability of error correction. The coding can be introduced to an information-hiding algorithm because of its functional advantages. This way can improve robustness of a system in the process of information hiding, and it has a good application prospect. In this paper, a new algorithm is proposed which concludes two steps. Firstly, the encryption information needs to be implemented scrambling dispose;secondly, LDPC codes and modulation are used in the algorithm, and the encryption information is embedded into the carrier image, so the process of watermark embedding is completed. The method realizes the double encryption of information, and it improves the system's stability and security. Under the test of MATLAB emulation, the application of LDPC code in encryption algorithm is fully verified.

关键词： encryption algorithm LDPC code Chaos sequence Digital watermarking

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Kryptoanalýza moderních kryptografických modulů

Kryptoanalýza moderních kryptografických modulů

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作者： Fördős, András Brno University of Technology

Práce se zaměřuje na proudovou analýzu moderních kryptografických modulů. V první části práce je krátký úvod do problematiky proudového postranního kaná... 详细信息

Práce se zaměřuje na proudovou analýzu moderních kryptografických modulů. V první části práce je krátký úvod do problematiky proudového postranního kanálu a do základních metod analýz. V textu je popsaný postup porovnání modulů a krátký popis nalezených zařízení. V praktické části byly vybrány celkem dva moduly pro implementaci šifrovacího algoritmu AES-128. První modul představoval čipovou kartu Gemalto .NET v2 a druhý modul představovalo Raspberry Pi. Pro oba moduly byly úspěšně vytvořeny experimentální pracoviště, které umožňovali měření proudové spotřeby algoritmu AES. Na získaných datech byla provedena diferenciální proudová analýza. V závěrečné části práce jsou shrnuty výsledky do tabulek, jsou vidět ukázkové kódy a grafy vytvořené z naměřených hodnot na modulu Raspberry Pi.

关键词： AES čipová karta hardwarová implementace kryptografický modul mikrokontrolér proudová analýza šifrovací algoritmus Raspberry Pi AES smart card hardware implementation cryptographic device microcontroller power analysis encryption algorithm

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E2 -: A new 128-bit block cipher

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IEICE TRANSACTIONS ON FUNDAMENTALS OF ELECTRONICS COMMUNICATIONS AND COMPUTER SCIENCES 2000年第1期E83A卷 48-59页

作者： Kanda, M Moriai, S Aoki, K Ueda, H Takashima, Y Ohta, K Matsumoto, T NTT Labs Yokosuka Kanagawa 2390847 Japan Yokohama Natl Univ Yokohama Kanagawa 2408501 Japan

This paper describes the design principles, the specification, and evaluations of a new 128-bit block cipher E2**, which was proposed to the AES (Advanced encryption Standard) candidates. This algorithm supports 128-bit, 192-bit, and 256-bit secret keys. The design philosophy of E2 is highly conservative;the structure uses 12-round Feistel as its main function whose round function is constructed with 2-round SPN structure. and initial/final transformational functions. E2 has practical security against differential attack, linear attack, cryptanalysis with impossible differential, truncated differential attack, and so on. Furthermore, E2 can be implemented efficiently and flexibly on various platforms because the primitive operations involve byte length processing.

关键词： encryption algorithm block cipher E2 AES design strategy

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A compressive sensing-based adaptable secure data collection scheme for distributed wireless sensor networks

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INTERNATIONAL JOURNAL OF DISTRIBUTED SENSOR NETWORKS 2019年第6期15卷 1-12页

作者： Liu, Zhen Han, Yi-Liang Yang, Xiao-Yuan Armed Police Force Engn Univ Coll Cryptog Engn Xian 710086 Shaanxi Peoples R China

Toward the goal of high security and efficiency for data collection in wireless sensor network, this article proposed an adaptable secure compressive sensing-based data collection scheme for distributed wireless sensor network. It adopted public key cryptography technology to solve the key distribution problem, and compressive sensing over finite fields to reduce the communication cost of data collection. Under hardness of decisional learning with errors problem on lattice, it can ensure indistinguishability against chosen ciphertext attack (IND-CCA1) security scheme for collected data on the extranet and indistinguishability against chosen plaintext attack security for data during the process of distributed collection on the intranet. Owing to the similar linear structure for lattices and compressive sensing, data encryption collection can be all in the form of efficient linear operations, and internode data aggregation can be in the form of addition operation.

关键词： Distributed sensor networks secure data collection encryption algorithm compressed sensing quantum attack resistant

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A Secure Subscription-Push Service Scheme Based on Biockchain and Edge Computing for IoT

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KSII TRANSACTIONS ON INTERNET AND INFORMATION SYSTEMS 2022年第2期16卷 445-466页

作者： Deng, Yinjuan Wang, Shangping Zhang, Qian Zhang, Duo Xian Univ Technol Shool Automat & Informat Engn Xian 710054 Peoples R China Baoji Univ Arts & Sci Sch Math & Informat Sci Baoji 721013 Peoples R China Xian Univ Technol Shool Sci Xian Peoples R China Xian Univ Technol Shool Comp Sci & Engn Xian Peoples R China

As everything linking to the internet, people can subscribe to various services from a service provider to facilitate their lives through the Internet of Things (IoT). An obligatory thing for the service provider is that they should push the service data safely and timely to multiple IoT terminal devices regularly after the IoT devices accomplishing the service subscription. In order to control the service message received by the legal devices as while as keep the confidentiality of the data, the public key encryption algorithm is utilized. While the existing public encryption algorithms for push service are too complicated for IoT devices, and almost of the current subscription schemes based on push mode are relying on centralized organization which may suffer from centralized entity corruption or single point of failure. To address these issues, we design a secure subscription-push service scheme based on blockchain and edge computing in this article, which is decentralized with secure architecture for the subscription and push of service. Furthermore, inspired by broadcast encryption and multicast encryption, a new encryption algorithm is designed to manage the permissions of IoT devices together with smart contract, and to protect the confidentiality of push messages, which is suitable for IoT devices. The edge computing nodes, in the new system architecture, maintain the blockchain to ensure the impartiality and traceability of service subscriptions and push messages, meanwhile undertake some calculations for IoT devices with limited computing power. The legalities of subscription services are guaranteed by verifying subscription tags on the smart contract. Lastly, the analysis indicates that the scheme is reliable, and the proposed encryption algorithm is safe and efficient.

关键词： Blockchain Edge Computing encryption algorithm Internet of Things Devices Subscription-Push Service

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