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检索条件"主题词=secure hash algorithm"

共 53 条记录，以下是31-40 订阅

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On the Implementation of McEliece with CCA2 Indeterminacy by SHA-3

On the Implementation of McEliece with CCA2 Indeterminacy by...

引用

IEEE International Symposium on Circuits and Systems (ISCAS)

作者： Ghosh, Santosh Intel Corp Intel Labs Secur & Privacy Res Hillsboro OR 97124 USA

ISBN: (纸本)9781479934324

This paper deals with the design and implementation of the post-quantum public-key algorithm McEliece. Seamless incorporation of a new error generator and new SHA-3 module provides higher indeterminacy and more randomization of the original McEliece algorithm and achieves CCA2 security standard. Due to the lightweight and high-speed implementation of SHA-3 module the proposed 128-bit secure McEliece architecture provides 6% higher performance in only 0.78 times area of the best known existing design.

关键词： Post-quantum cryptography McEliece CCA2 SHA-3 Keccak secure hash algorithm public-key

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Hardware Acceleration of SHA-256 algorithm using NIOS-II Processor 8

Hardware Acceleration of SHA-256 Algorithm using NIOS-II Pro...

引用

8th International Conference on Modern Circuit and System Technologies (MOCAST)

作者： Sideris, Argirios Sanida, Theodora Dasygenis, Minas Univ Western Macedonia Dept Informat & Telecommun Engn Kozani 50131 Greece

ISBN: (纸本)9781728111841

Cryptography plays a leading role in the information transmission security. Even though encrypted, data can be altered when transmitted over a network. Therefore, to verify data the use of a digital signature is essential. hashing algorithms are used both to create digital signatures and to verify the receiving data. Our proposed design of a hashing algorithm, is a custom hardware implementation on a FPGA of the secure hash algorithm-2 (SHA-2), using Nios II processor. We use two acceleration techniques, to improve performance of SHA-2 computation: floating point and floating point 2. Finally, after applying these techniques, we studied all the designs in terms of integration time, the number of clock cycles and the percentage of overlap in the FPGA.

关键词： Cryptography secure hash algorithm SHA-2 NIOS II Processor Floating point Cyclone IV E FPGA SOPC Builder Accelerator

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Ultra High Throughput Implementations for MD5 hash algorithm on FPGA

Ultra High Throughput Implementations for MD5 Hash Algorithm...

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2nd International Conference on High Performance Computing and Applications

作者： Wang, Yuliang Zhao, Qiuxia Jiang, Liehui Shao, Yi China Natl Digital Switching Syst Engn & Technol Zhengzhou 450002 Peoples R China

ISBN: (纸本)9783642118418

This paper first presents a new architecture of MD5, which achieved the theoretical upper bound on throughput in the iterative architecture. And then based on the general proposed architecture, this paper implemented other two different kinds of pipelined architectures which are based on the iterative technique and the loop unrolling technique respectively. The latter with 32-stage pipelining reached a throughput up to 32.035Gbps on an Altera Stratix II GX EP2SGX90FF FPGA, and the speedup achieved 194x over the Intel Pentium 4 3.0 processor. At least to the authors knowledge, this is the fastest published FPGA-based design at the time of writing. At last the proposed designs are compared with other published MD5 designs, the designs in this paper have obvious advantages both in speed and logic requirements.

关键词： secure hash algorithm MD5 Filed Programmable Gate Array (FPGA) Pipelining Loop unrolling Speedup

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LOCATION AWARE SELECTIVE UNLOCKING & secure VERIFICATION SAFER CARD FORENHANCING RFID SECURITY BY USING SHA-3. 2

LOCATION AWARE SELECTIVE UNLOCKING & SECURE VERIFICATION SAF...

引用

2nd IEEE International Conference on Advances in Computing and Communication Engineering (ICACCE)

作者： Dakhore, Sagar Lohiya, Padma DY Patil Coll Engn Dept E&TC Commun Network Pune Maharashtra India DY Patil Coll Engn Dept E&TC Pune Maharashtra India

ISBN: (纸本)9781479917341

In This Paper, we report a new approach for providing security as well as privacy to the corporate user. With the help of locations sensing mechanism by using GPS we can avoid the un-authorized reading & relay attacks on RFID system. For example, location sensing mechanism with RFID card is used for location specific application such as ATM cash transfer van for open the door of van. So after reaching the pre-specified location (ATM) the RFID card is active & then it accepts the fingerprint of the registered person only. In this way we get a stronger cross layer security. SHA-3 algorithm is used to avoid the collision (due to fraud fingerprint) effect on server side.

关键词： RFID Location Aware Selective unlocking Java Development kit (JDK) secure hash algorithm

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Applying secure Authentication Scheme to Protect DNS from Rebinding Attack Using Proxy

Applying Secure Authentication Scheme to Protect DNS from Re...

引用

International Conference on Circuit, Power and Computing Technologies (ICCPCT)

作者： Pandiaraja, P. Parasuraman, S. Arunai Engn Coll Dept Comp Sci & Engn Thiruvannamalai Tamil Nadu India

ISBN: (纸本)9781479970759

Internet is critical to both the economy and society in today's world. Domain Name System (DNS) is a key building block of the internet and the DNS hides all technical infrastructures, software and hardware required for the domain name system to function correctly. It allows users to access websites and exchange emails. It runs a strong mechanism to provide the IP address of the internet host name. An attacker can launch rebinding attack when the DNS server sends a query to any particular server on the network. Different types of techniques have been proposed to prevent this attack that all have some pros and also cones. A new technique is proposed in this paper by using security proxy with a hash function. Rebinding attack can be avoided by using this technique. It provides a secured environment for the DNS to communicate with other DNS. While the source DNS are receiving response from any DNS it will authenticate of all the receiving packets and then sends the data to the client. It gives a secure environment for DNS communication. For this purpose 2 different algorithms are used, namely SHA-2 and AES algorithms. First a random ID will be given to the query and then the query is sent to the DNS server.

关键词： Proxy Rebinding attack secure hash algorithm Advanced Encryption Standard

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NMACA Approach Used to Build a secure Message Authentication Code

NMACA Approach Used to Build a Secure Message Authentication...

引用

International Conference on Security Technology/International Conference on Disaster Recovery and Business Continuity

作者： Alosaimy, Raed Alghathbar, Khaled Hafez, Alaaeldin M. Eldefrawy, Mohamed H. King Saud Univ Ctr Excellence Informat Assurance CoEIA Riyadh 11451 Saudi Arabia

ISBN: (纸本)9783642176098

secure storage systems should consider the integrity and authentication of long-term stored information. When information is transferred through communication channels, different types of digital information can be represented, such as documents, images, and database tables. The authenticity of such information must be verified, especially when it is transferred through communication channels. Authentication verification techniques are used to verify that the information in an archive is authentic and has not been intentionally or maliciously altered. In addition to detecting malicious attacks, verifying the integrity also identifies data corruption. The purpose of Message Authentication Code (MAC) is to authenticate messages, where MAC algorithms are keyed hash functions. In most cases, MAC techniques use iterated hash functions, and these techniques are called iterated MACs. Such techniques usually use a MAC key as an input to the compression function, and this key is involved in the compression function, f, at every stage. Modification detection codes (MDCs) are un-keyed hash functions, and are widely used by authentication techniques such as MD4, MD5, SHA-1, and RIPEMD-160. There have been new attacks on hash functions such as MD5 and SHA-1, which requires the introduction of more secure hash functions. In this paper, we introduce a new MAC methodology that uses an input MAC key in the compression function, to change the order of the message words and shifting operation in the compression function. The new methodology can be used in conjunction with a wide range of modification detection code techniques. Using the SHA-1 algorithm as a model, a new (SHA-1)-MAC algorithm is presented. The (SHA-1)-MAC algorithm uses the MAC key to build the hash functions by defining the order for accessing source words and defining the number of bit positions for circular left shifts.

关键词： secure hash algorithm hash-Based Message Authentication Codes

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Encryption System Design Based On DES And SHA-1

Encryption System Design Based On DES And SHA-1

引用

11th International Symposium on Distributed Computing and Applications to Business, Engineering and Science (DCABES)

作者： Zhang, Jian Jin, Xuling Univ Civil Engn & Architecture Sch Sci Beijing Peoples R China

ISBN: (纸本)9780769548180

For modern society, The concealment and completeness of data is particularly important. To solve this problem, developed a mixed DES and SHA-1 encryption system based on VC + + environment. The system on the one hand by Triple DES and RSA algorithms for data encryption to hide, on the other hand, by the SHA-1 algorithm to validate the integrity of data, it has a wide range of practicality.

关键词： data encryption standard public key cryptography secure hash algorithm data encryption system

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Design of Hyper Elliptic Curve Digital Signature

Design of Hyper Elliptic Curve Digital Signature

引用

International Conference on Information Technology and Computer Science

作者： Deng Jian-zhi Cheng Xiao-hui Gui Qiong Guilin Univ Technol Dept Elect & Comp Sci Guilin Peoples R China

ISBN: (纸本)9780769536880

In computer cryptography, Hyper elliptic curve cryptography system is one of the best cryptography system. DSA signature algorithm is also an advanced digital signature algorithm. In this paper, it's banded hyper elliptic curve cryptography system and DSA signature standard together based on analysis and study them. The digital signature algorithm and the digital validate algorithm are analysis and improved. The hyper elliptic curve cryptography system is transplanted into DSA algorithm. And a digital signature based on HEC-DSA system is implemented. QuartusII is used to generate the function modules, RTL circuit and simulated waveform. RTL is the circuit connection in chip. It shows the connection of the modules. Simulated waveform shows us the timing and the function of the system. The security and efficiency of the HEC-DSA digital signature system is analyzed. The digital signature designed in this paper can solved the problem that how to check integrality of the rile and signature ID, and it especially fit for the internet operation that need identity validate.

关键词： hyper elliptic curve digital signature algorithm digital signature secure hash algorithm

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A secure Elliptic Curve Digital Signature Scheme for Embedded Devices

A Secure Elliptic Curve Digital Signature Scheme for Embedde...

引用

2nd International Conference on Signals, Circuits and Systems

作者： Wajih, El Hadj Youssef Mohsen, Machhout Rached, Tourki Elect & Microelect Lab Dept Phys Fac Sci Monastir Monastir Tunisia

ISBN: (纸本)9781424426270

Random numbers are fundamental to all aspects of data security. The strength of a security mechanism is directly proportional to the randomness of the numbers it uses. These numbers are provided by special algorithms called Random Number Generators (RNG). This paper describes a novel security approach on authentification schemes as a modification of ECDSA scheme. The modification is done by adding a key stream generator, W7, to the standard ECDSA in order to increase the process security and in turn the authentification protocol performances. An efficient hardware implementation of the Elliptic Curve Digital Signature scheme was captured using VHDL language. For the hardware implementation of the design, an FPGA device was used. The implementation results illustrate the hardware performances in terms of time computation and area occupation. The proposed ECDSA scheme is suitable to be a reliable and efficient for embedded devices with respect to security interests.

关键词： Random Number Generation secure hash algorithm Elliptic Curve Digital Signature algorithm

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secure Cancelable Fingerprint Key Generation 6

Secure Cancelable Fingerprint Key Generation

引用

6th IEEE Power India International Conference (PIICON)

作者： Bhatega, Aditi Sharma, Kapil Delhi Technol Univ Delhi India

ISBN: (纸本)9781479960422

The strength of present day cryptosystem lies mainly in the key used for encryption. The problem to remember, protect and manage private key is a major issue in case of asymmetric ciphers. By using proven one way mathematical functions, multiplication of two large primes and secure hash function, we propose a robust and stable fingerprint key generation scheme. This scheme enables the generation of secure and cancelable cryptographic key with a very small FAR. The key can be used as private key for elliptic curve or NTRU based cryptosystems.

关键词： Fingerprint Minutiae Core Point Cancelable Biometrics secure hash algorithm

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