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5th International Conference on Internet Multimedia computing and Service, ICIMCS 2013

作者： Liu, Yuan Luo, Xiangyang Lu, Jicang Gong, Daofu Zhengzhou Information Science and Technology Institute Zhengzhou 450001 China State Key Laboratory of Information Security Institute of Information Engineering Chinese Academy of Sciences Beijing 100093 China Zhengzhou Information Science and Technology Institute State Key Laboratory of Mathematical Engineering and Advanced Computing Zhengzhou 450001 China

ISBN: (纸本)9781450322522

For steganalysis of F5-like steganography with two types of widely used joint distribution statistical features: co-occurrence matrix and Markov transition probability matrix, a feature selection and fusion method based on separability comparison is proposed in this paper. Firstly, the changing ways of F5-like steganography to image data is analyzed. Then, according to different affecting ways of the changing to two types of features, the separability of each feature component is analyzed and compared. At last, based on the comparison conclusion, a new feature is obtained by selection and fusion. Experimental results show that, compared with existing typical features, the proposed new feature can achieve higher steganalytic accuracy and enhance the detection reliability. © 2013 ACM.

关键词： Steganography

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Steganographic codes by applying syndrome-trellis codes to dynamic distortion model in pixel chain

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Jisuanji Yanjiu yu Fazhan/Computer Research and Development 2014年第8期51卷 1739-1747页

作者： Bao, Zhenkun Zhang, Weiming Cheng, Sen Zhao, Xianfeng The Fourth Institute Information Engineering University Zhengzhou450002 China State Key Laboratory of Mathematical Engineering and Advanced Computing Information Engineering University Zhengzhou450002 China School of Information Science and Technology University of Science and Technology of China Hefei230026 China Institute of Information Engineering Chinese Academy of Sciences Beijing100093 China State Key Laboratory of Information Security Instituteof Information Engineering Chinese Academy of Sciences Beijing100093 China

Double-layered STC (syndrome trellis code) is the most popular method for minimizing the distortion of ± 1 steganography. However, it is a probabilistic algorithm which may fail in the embedding process on some given profiles. Another characteristic of double-layered STC is the high computational complexity. Starting from these two points, we propose a dynamic distortion model defined in a pixel chain in this paper. The dynamic distortion model is working on a principle that the SLSB (second least significant bit) of current pixel is used to control the LSB (least significant bit) of the next pixel. So the distortion of some pixels may be adjusted to zero by this means. We apply STC to fit the dynamic distortion model and get a novel method for ± 1 steganography. Comparing with the double-layered STC, the experiment result shows that the proposed method has comparable ability for minimizing distortion with significantly improved embedding speed. And this novel method avoids failure in the embedding process. Considering the advantages together, the method is more suitable for steganography systems and software in practical environment.

关键词： Pixels

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The process analysis of encryption and decryption based on process dependency graphs

The process analysis of encryption and decryption based on p...

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2013 International Conference on Sport Science and Computer Science (CCCS 2013)

作者： Rui Chang Liehui Jiang Hongqi He Yun Zeng State Key Laboratory of Mathematic Engineering and Advanced Computing

At present,the research on reverse analysis of encrypting and decrypting process pays more attention to cryptographic algorithms *** is no mature theory or tools for the entire process analysis of encryption and *** order to solve the problem efficiently,this paper discusses encryption and decryption process dependency graphs,summarizes the existing research results about the cryptographic algorithms recognition technology,and explores a way to research the process analysis of encryption and decryption based on process dependency ***,the result on an example reveals the entire process analysis of encryption and decryption.

关键词： encryption and decryption reverse analysis process dependency graphs

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Design of a high-performance full-system instrumentation

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Dongbei Daxue Xuebao/Journal of Northeastern University 2014年 35卷 129-134页

作者： Min, Qing-Hao Zhang, Zheng Wang, Hao-Jun Zhang, Wei-Hua Software School Fudan University Shanghai201203 China Shanghai Key Laboratory of Data Science Fudan University Shanghai201203 China Parallel Processing Institute Fudan University Shanghai201203 China State Key Laboratory of Mathematic Engineering and Advanced Computing PLA Information Engineering University Zhengzhou450001 China

Instrumentation is an important mechanism to collect run-time information of applications for further analysis like bottleneck analysis, hotspot analysis and even bug detection and revision. Currently there are lots of analyzers using instrumentation to collect their source data. However, most of these tools lack of full-system support and thus become inadequate for analyzing multi-core programs as they cannot provide full-system information like scheduling, system calls and inter-process communication, etc. Meanwhile, full-system instrumentation needs to collect OS and hardware information, resulting to performance degradation. In this paper, a high-performance full-system instrumentation method was designed for collecting full-system information as well as application information. The proposed method was implemented inside the QEMU full-system emulator, and 40 MIPS performance on average was achieved after optimization, which was appropriated for normal program analysis. ©, 2014, Northeastern University. All right reserved.

关键词： Full-system High-performance Instrumentation Multi-core

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Research of function disable energy-saving hardware trojan detection technology

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Energy Education Science and Technology Part A: Energy Science and Research 2013年第2期31卷 1035-1040页

作者： Xiao, Da Zhu, Yuefei Liu, Shengli Li, Qinbao National Digital Switching System Engineering and Technological Research Center Zhengzhou 450002 China State Key Laboratory of Mathematical Engineering and Advanced Computing Zhengzhou 450002 China

Aiming at the function disable Energy-saving hardware Trojan detection application requirements, has resarech the Energy-saving hardware Trojan generation principle and the trigger mechanism deeply, gives the function disable hardware Trojan definition, hase induced the function disable hardware Trojan basic characteristics. And then, has builded the function disablehardware Trojan detection model, put forward the function disable Energy-saving hardware Trojan detection algorithm, and it is proved that the detection algorithm is correct. At last has design function disable Energy-saving hardware Trojans in FPGA chip, after simulation and testing the chip, has detected function disable Energy-saving hardware Trojan successfuly, which verified the feasibility of the algorithm. © Sila Science.

关键词： Energy conservation

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Fixing the sender-equivocable encryption scheme in eurocrypt 2010

Fixing the sender-equivocable encryption scheme in eurocrypt...

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5th IEEE International Conference on Intelligent Networking and Collaborative Systems, INCoS 2013

作者： Huang, Zhengan Liu, Shengli Qin, Baodong Chen, Kefei Department of Computer Science and Engineering Shanghai Jiao Tong University Shanghai China College of Computer Science and Technology Southwest University of Science and Technology Mianyang China School of Science Hangzhou Normal University Hangzhou China State Key Laboratory of Mathematical Engineering and Advanced Computing Wuxi China

ISBN: (纸本)9780769549880

There are two main approaches to achieve selective opening chosen-cipher text security (SO-CCA security): lossy encryption (including all-but-many lossy trapdoor functions) and sender-equivocable encryption. The second approach was proposed in Euro crypt 2010 by Fehr et al., who proved that sender equivocability under chosen-cipher text attacks (NC-CCA security) implies SO-CCA security. They also proposed a new primitive called "cross-authentication code", and used it to construct a public-key encryption (PKE) scheme (the FHKW scheme) achieving NC-CCA security. However, recently in PKC 2013, Huang et al. pointed out that the properties of cross-authentication code cannot guarantee the NC-CCA security of the FHKW scheme, i.e., the security proof of the FHKW scheme is flawed. In this paper, we propose the notion of "strong cross-authentication code", which helps to fix the security proof of the FHKW scheme. This strong notion captures the ability of a cross-authentication code to efficiently generate a new key, based on all the other keys and the cross-authentication tag, such that the new key is statistically indistinguishable from the original key. With this code as a building block, we construct a new version of the FHKW scheme, and prove it to be NC-CCA secure for multi-bit plaintexts. Our work makes possible the instantiation of simulation-based SO-CCA secure PKE with a multi-bit message space from NC-CCA secure PKEs. © 2013 IEEE.

关键词： Authentication

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Data recovery of user-defined procedures in binary translation

Data recovery of user-defined procedures in binary translati...

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International Conference on BioMedical engineering and Informatics (BMEI)

作者： Xiaonan Liu Rongcai Zhao Jianmin Pang Meijuan Yin Zhenfang Wei State Key Laboratory or Mathematics Engineering and Advanced Computing Zhengzhou China

ISBN: (纸本)9781479927623

A binary program is a set of binary data and operations on the data. In binary translation, operations on the source machine will be transplanted to the target machine. Also, the data which the operations depend on should be migrated to the target machine, so as to ensure the complete consistency of the data accessed by the transplanted target codes and the data accessed by the source codes. Firstly, the method is presented in this paper to convert the access to the data on the source machine to the access to the corresponding data on the target machine for the user-defined procedure, and to ensure the correctness of the accessed data on the target machine in the meanwhile. Then, for the binary translation from x64 architecture to RISC architecture, the data recovery method based on semantic mapping and balanced stack frame is proposed. Also, problems in data recovery for the user-defined procedure are solved by the proposed method.

关键词： Registers Semantics Libraries Reduced instruction set computing Computer architecture Layout Data mining

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Operand stack dependence based Java static software birthmark

Operand stack dependence based Java static software birthmar...

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International Conference on Fuzzy Systems and Knowledge Discovery (FSKD)

作者： Yong Wang Fenlin Liu Zheng Zhao Bin Lu Xin Xie Zhengzhou Institute of Information Science and Technology Zhengzhou China State Key Laboratory of Mathematical Engineering and Advanced Computing Zhengzhou China

ISBN: (纸本)9781467352512

Due to the problem of semantic lost when extracting birthmark with k-gram algorithm, the operand stack dependence based static software birthmark is proposed in this paper. Before the birthmark extraction, the stack dependence bytecode fragments are got through analysis the stack dependence relation of stack behaviors in Java program. The birthmark is comprised of the stack dependence bytecode fragments and their occurrence frequencies in program. The experimental results show that the proposed birthmark has good credibility and robustness, and the performance is improved.

关键词： Software Java Resilience Semantics Heuristic algorithms Resistance Vectors

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The Research on Cryptographic Algorithms Recognition Technology

The Research on Cryptographic Algorithms Recognition Technol...

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International Conference on Intelligent System Design and engineering Application (ISDEA)

作者： Rui Chang Liehui Jiang Hui Shu Yaobin Xie State Key Laboratory of Mathematic Engineering and Advanced Computing Zhengzhou Henan China

At present, the research on security of computer system and searching for malicious codes pays more attention to cryptographic algorithms recognition technology. However, the existing theories or tools in the field of cryptographic algorithms recognition are not mature. In order to improve the accuracy of cryptographic algorithms recognizing, this paper discusses encryption and decryption functions characteristic information database and proposes a recognition model to recognize cryptographic algorithms from binary files. The accuracy assessment indicates the model is effective and feasible.

关键词： Algorithm design and analysis Ciphers Databases Information entropy Encryption Accuracy

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A New Algorithm to Exploit Superword Level Parallelism

A New Algorithm to Exploit Superword Level Parallelism

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IEEE International Symposium on Dependable, Autonomic and Secure computing (DASC)

作者： Peng Liu Rong-cai Zhao Wei Gao Shuai Wei State Key Laboratory of Mathematical Engineering and Advanced Computing Zhengzhou China National Digital Switching System Engineering & Technology Research Center Zhengzhou China

Nowadays SIMD extensions became ubiquitous for computational platform, being widely used in signal processing, multimedia, and scientific applications. However, compilers still have difficult in vectorizing some applications, such as computations on non-contiguous and especially interleaved data, and loop nest for which inner loops that carry all the dependencies and external loops with strided memory accesses. In order to solve these problems, we adopt Isomorphic statements Grouping (ISG) after extending group following UD and DU chains, which group isomorphic computation statements that perform the same operation. And correspondingly, we generate vector permutation instructions according to the target ISA SIMD instructions at the SIMD code generation phase. This approach has been implemented in a compiler based on Open64 which translate C source program to C source program with SIMD intrinsic functions. Experiments with this compiler show that ISG Super Level Parallelism(ISG-SLP) can be used to compile a number of real-world kernels, achieving up to 3.11 speedup.

关键词： Vectors Arrays Finite impulse response filters Program processors Indexes Algorithm design and analysis Image processing

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