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Historical notes on Russian cryptography

JOURNAL OF COMPUTER VIROLOGY AND HACKING TECHNIQUES 2024年第2期20卷 277-293页

作者： Epishkina, Anna Zapechnikov, Sergey Belozubova, Anna Natl Res Nucl Univ MEPhI Moscow Engn Phys Inst Moscow Russia RUDN Univ Peoples Friendship Univ Russia Moscow Russia

The article is devoted to the main milestones in the development of encryption techniques and mathematical methods of cryptography in Russia from the period of ancient Russia up to the nowadays. We break down the history of Russian cryptography into several periods and highlight the periods of cryptography development, analyze the most notable achievements and summarize the main results and applications of each period. The review of scientific research and standardization of cryptography in modern Russia is given. The progress of related areas is briefly analyzed: steganography and protection against falsification of documents.

关键词： Information security Cryptography Cipher Encryption machine Encryption Decryption cryptographic algorithm

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An IPSec Accelerator Design for a 10Gbps In-Line Security Network Processor

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JOURNAL OF COMPUTERS 2013年第2期8卷 319-325页

作者： Niu, Yun Wu, Liji Zhang, Xiangmin Tsinghua Univ Inst Microelect Beijing Peoples R China

The IP security protocol (IPSec) is an important and widely used security protocol in the IP layer. But the implementation of the IPSec is a computing intensive work which greatly limits the performance of the high speed network. In this paper, a high performance IPSec accelerator used in a 10Gbps in-line network security processor (NSP) is presented. The design integrates the protocol processing and the cryptographic processing;the transport/tunnel mode of the AH, ESP security protocols and the AES, HMAC-SHA-1 cryptographic algorithms are realized by hardware. An efficient partial crossbar data transfer skeleton with iSLIP scheduling algorithm is adopted to realize the maximum utilization of the computation resources in the accelerator. The number of AH, ESP, AES, HMAC-SHA-1 cores in the design can be configured to meet the different applications. By simulation, with 8 protocol IP-cores and 24 crypto IP-cores connected to the crossbar in the IPSec accelerator, the design gives a peak throughput for the AH protocol transport mode of 11.28Gbps at the average of 512 bytes packet length under a clock rate of 300MHz. The hardware verification is implemented on a Virtex-5 XC5VSX95T based FPGA board. Low power design methods are also used in the design to reduce the power dissipation.

关键词： IPSec network security processor 10Gbps Ethernet cryptographic algorithm crossbar switch

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The multics encipher_algorithm

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CRYPTOLOGIA 2007年第4期31卷 292-304页

作者： Sibert, W. Olin Baldwin, Robert W. Oxford Syst Inc Lexington MA 02420 USA MIT Cambridge MA 02139 USA

A fast software block encryption algorithm with a 72-bit key was written by (then) Major Roger R. Schell (United States Air Force) in April 1973 and released as part of the source code for the Multics operating system. The design of the Multics encipher_ algorithm includes features such as variable data-dependent rotations that were not published until the 1990s-20 years after the Multics cipher. This article describes the history and details of the Multics encipher_ algorithm and how it was used for Key Generation, File Encryption, and Password Hashing. A cryptographic analysis of the algorithm has not been performed, although similarities are noted with algorithms such as XTEA, SEAL, and RC5.

关键词： block cipher cipher feed-back (CFB) mode cryptographic algorithm decode_ encipher_ encode_ file encryption key auto-key KAK mode multics one-way password hashing patent prior art RC5 scramble_ SEAL software encryption stream cipher tausworthe random number generator XTEA 72-bit key

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Design and Implementation of Real Time Secure SMS Transmission 4

Design and Implementation of Real Time Secure SMS Transmissi...

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INTERNATIONAL CONFERENCE ON COMPUTATION OF POWER, ENERGY, INFORMATION AND COMMUNICATION

作者： Rautkar, Shital D. Prasad, Prakash S. Priyadarshini Coll Engn Dept Comp Technol Nagpur Maharashtra India Priyadarshini Coll Engn Dept Comp Tech Nagpur Maharashtra India

ISBN: (纸本)9781467365246

The SMS can be used in various types of diurnal application including medical aspiration, banking aspiration and any other mobile aspiration. Serving an SMS is one of the economical, fastest and simple methods. When we alternate SMS from one mobile phone to another mobile phone, the data contained in the message transmit as a decoded form(unencrypted text). Steadily this data enclosed in the message may be mystic (private) like bank account number, or any identification key, and so on, and it is an intense inconvenience to delegates such data through the SMS up to the established message courtesy dose not supply (give) encryption to the data contained in the SMS before its transmission.

关键词： cryptographic algorithm Encryption SMS disclosure replay attack Decryption

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Role of Modified Gabor Filter algorithm in Multimodal Biometric Images 6

Role of Modified Gabor Filter Algorithm in Multimodal Biomet...

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6th International Conference on Computing for Sustainable Global Development (INDIACom)

作者： More, Sharmila S. Narain, Bhawna Jadhav, B. T. MATS Univ MATS Sch IT Raipur CG India RIRD Satara Maharashtra India

ISBN: (纸本)9789380544342

Nowadays, in every technology sector, security issues are one of major concerns. For resolving these issue cryptographic features extraction algorithm is frequently used. The main feature in computer security is the cryptography techniques. In our work, multimodal biometric images are used as input and features like shape, size, edge and texture are extracted. This is executed by applying feature extraction algorithm like Gabor filter. In this paper we are explaining about multimodal biometrics its role and effect of Gabor Filter on multimodal biometrics images. We have discussed the implementation of modified Gabor Filter algorithm by using MATLAB on parameters such as age and gender. We have also discussed other parameters like key size, input size, time taken, simulation, memory requirement, CPU usage, matching algorithm, time delay, false acceptance rate, false rejection rate.

关键词： cryptographic algorithm Gabor Filter Feature Extraction false acceptance rate false rejection rate

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The Research on Outlook Password Recovery

The Research on Outlook Password Recovery

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International Conference on Mechatronic Sciences, Electric Engineering and Computer (MEC)

作者： Zhang, Lijun Yu, Fei Sci & Technol Commun Secur Lab Chengdu Sichuan Provinc Peoples R China

ISBN: (纸本)9781479925650

Outlook is the email client in the Microsoft office package, which has become one of the most widely applied email processing systems in the personal and commercial office environment. This paper studies the password recovery for various accounts in Outlook and we find the method of online recovery by exploiting the Windows cryptographic interface DPAPI for sensitive data. This recovery method enables one to retrieve his password very conveniently. Furthermore, we investigate the inner workings of encryption and decryption functions in DPAPI and present a detailed analysis on the encrypted data type, storage structure, cryptographic algorithm and key generation. To the best of our knowledge, for the first time we give the way of offline password recovery which could be remarkably helpful in the computer forensics.

关键词： Outlook account Windows DPAPI cryptographic algorithm password recovery computer forensics

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JasUA: A JavaScript Stack enabling Web Browsers to support OPC Unified Architecture's Binary Mapping natively

JasUA: A JavaScript Stack enabling Web Browsers to support O...

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15th IEEE International Conference on Emerging Technologies and Factory Automation (ETFA)

作者： Hennig, Stefan Braune, Annerose Damm, Matthias Tech Univ Dresden Inst Automat D-01062 Dresden Germany

ISBN: (纸本)9781424468508

Web browsers are promising candidates for the OPC's SOAP-HTTP WS-SC UA XML StackProfile to execute visualization solutions. First tests could demonstrate the applicability of native web browsers without any plugins but the required cryptographic algorithms cause unacceptable response times. The enormous performance improvement of JavaScript engines lets expect an adequate reduction of operating times;this may be strengthen by using an effective HTTP UA-SC UA Binary Stack Profile. This paper presents the current development state and first measurements of a OPC UA JavaScript Stack which is able to handle OPC UA Binary encoded and with OPC UA SecureConversation secured data.

关键词： JasUA Java JavaScript Stack JavaScript engines OPC SOAP-HTTP WS-SC UA XML StackProfile OPC UA SecureConversation secured data OPC Unified architecture binary mapping cryptographic algorithm cryptography native Web browser online front-ends software architecture

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Area Optimized and High Throughput AES algorithm based on Permutation Data Scramble Approach

Area Optimized and High Throughput AES Algorithm based on Pe...

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International Conference on Electrical, Electronics, and Optimization Techniques (ICEEOT)

作者： Dilna, V Babu, C. Amrita Vishwa Vidyapeetham Univ Dept Elect & Commun Engn Amrita Sch Engn Bengaluru Campus Coimbatore Tamil Nadu India

ISBN: (纸本)9781467399395

In today's scenario most of the things in human life is E-banking where everything is faster and smoother. With the various exchange of electronics signals between any two servers or systems, the money transactions can be done and this process is E-banking. Third party software is used for this E-banking feature where end to end users are secured. The proposed AES algorithm enhances the performance by resolving the security related issues for E-banking features and provides better throughput operations. The permutation step involved in the proposed AES algorithm resembles to Data Encryption Standard (DES) algorithm. The mode of data transmission in the modified AES is 128 bit plaintext and keys which converted into four 32bit blocks and exclusion of shift row. Using this feature not only area is optimized but also higher throughput is achieved. The high potential usage of same cryptographic algorithms risks the secure data processing so advanced changes should be incorporated. Design has been done using Verilog and simulated using Modelsim. The design has been synthesized using Xilinx for target device Vertex6.

关键词： E-banking Advanced Encryption Standard (AES) Data Encryption Standard (DES) cryptographic algorithm

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The Forensic Analysis of Encrypted Truecrypt Volumes 2

The Forensic Analysis of Encrypted Truecrypt Volumes

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2nd IEEE International Conference on Progress in Informatics and Computing (PIC)

作者： Zhang, Lijun Zhou, Yu Fan, Jia Sci & Technol Commun Secur Lab Chengdu 610041 Peoples R China

ISBN: (纸本)9781479920303

In this paper, we investigate the inner encryption principles of Truecrypt volumes including cryptographic algorithms, encryption mode, key derivation way and password verifying process. Besides, we explain the forensic operation by password cracking with concrete data instances. Our research could be helpful in two scenarios of Truecrypt application: one is to enable a personal user to retrieve his forgotten password, the other is to provide computer forensic analysis of criminal activity. To the best of our knowledge, this is the first time that the complete and explicit password cracking details are presented publicly and finally we also give some suggestion to enhance the security of Truecrypt encryption.

关键词： Truecrypt encrypted volume cryptographic algorithm computer forensic

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Side-channel issues for designing secure hardware implementations

Side-channel issues for designing secure hardware implementa...

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11th IEEE International On-Line Testing Symposium

作者： Batina, L Mentens, N Verbauwhede, I Katholieke Univ Leuven ESAT SCD COSIC B-3001 Louvain Belgium

ISBN: (纸本)0769524060

Selecting a strong cryptographic algorithm makes no sense if the information leaks out of the device through side-channels. Sensitive information, such as secret keys, can be obtained by observing the power consumption, the electromagnetic radiation, etc. This class of attacks are called side-channel attacks. Another type of attacks, namely fault attacks, reveal secret information by inserting faults into the device. Because both side-channel attacks and fault attacks are based on weaknesses in the implementation, they both belong to the category of implementation attacks. This work gives an overview of the state-of-the-art in implementation attacks, reviews the origin of this problem at the CMOS circuit level and discusses countermeasures.

关键词： CMOS digital integrated circuits cryptography integrated circuit design CMOS circuit cryptographic algorithm fault attacks implementation attacks information leakage secret information secret keys secure hardware implementations side-channel attacks

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