Results 211 to 220 of about 65,979 (233)

Divisible Blind Signatures based on Hash Chains

International Journal of Computers and Applications, 2004
AbstractThis article presents an efficient divisible blind signature scheme that makes it possible to divide a blind signature with a specified value into a sequence of subsignatures with smaller values for a sequence of different designated verifications.
Fan, C. I., Lei, C. L.
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IJTAG Integrity Checking with Chained Hashing

2018 IEEE International Test Conference (ITC), 2018
The JTAG port is a well-known vector for attacks that attempt to gain access to a chip’s internal circuitry. Such attacks may modify or extract proprietary data and can lead to misconfigured chips and IP theft. This paper uses a hash-based signature created through the history of the data shifted into and out of a device via IJTAG to provide a measure ...
Senwen Kan, Jennifer Dworak
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On Fast Verification of Hash Chains

2010
A hash chain H for a hash function hash(·) is a sequence of hash values 〈xn, xn−1,..., x0 〉, where x0 is a secret value, xi is generated by xi=hash(xi−1) for 1≤i≤n, and xn is a public value. Hash values of H are disclosed gradually from xn−1 to x0. The correctness of a disclosed hash value xi can be verified by checking the equation $x_n \stackrel{?}{=}
Sung Je Hong, Dae Hyun Yum, Jin-Seok Kim, Pil Joong Lee   +3 more
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Concurrent Chaining Hash Maps for Software Model Checking

2019 Formal Methods in Computer Aided Design (FMCAD), 2019
Stateful model checking creates numerous states which need to be stored and checked if already visited. One option for such storage is a hash map and this has been used in many model checkers. In particular, we are interested in the performance of concurrent hash maps for use in multi-core model checkers with a variable state vector size.
Van Der Berg, Freark I., Van De Pol, Jaco   +1 more
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Implementation of RFID Middleware Based on Hash Chain

Applied Mechanics and Materials, 2013
With the development of RFID technology , RFID middleware is gradually being taken seriously.RFID middleware can provide strong support for the RFID system, to make it more widely available. This paper introduces the MD5 and SHA-two kinds of hash algorithm.The design of RFID middleware software implementation based on the Hash link protocol, laid the ...
Yue Hu, Jin Sha Yuan
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Data authentication for NDN using hash chains

2015 IEEE Symposium on Computers and Communication (ISCC), 2015
Named Data Networking (NDN) is considered to be a viable replacement of the traditional IP networking for the next generation Internet architecture. NDN is a data centric, rather than host centric, approach to discovery and retrieval of information distributed across a network.
Mark D. Horvath, Michelle Schumaker, Creighton Hager, Tamer Refaei   +3 more
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A Recursive Algorithm for General Hash Chain Traversal

2014 IEEE 17th International Conference on Computational Science and Engineering, 2014
A hash chain is a popular tool for improving the efficiency of several cryptographic applications. In spite of the computation efficiency of one-way function, the performance issue is a challenging research topic for chains with long length in resource-constrained environments.
Yi-Wen Peng, Wei-Mei Chen
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Self-Updating Hash Chains and Their Implementations

2006
Hash Chains are widely used in various cryptography applications such as one-time passwords, server-supported signatures and micropayments etc. However, the finite length (‘limited-link') of hash chains limits their applications. Some methods of re-initializing hash chains or infinite hash chains introduced in literatures are inefficient and un-smooth.
Yuefei Zhu, Haojun Zhang
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Fast Verification of Hash Chains with Reduced Storage

IEICE Transactions on Fundamentals of Electronics, Communications and Computer Sciences, 2011
A hash chain H for a hash function hash(·) is a sequence of hash values , where x0 is a secret value, xi is generated by xi = hash(xi-1) for 1≤ i ≤ n, and xn is a public value. Hash values of H are disclosed gradually from xn-1 to x0. The correctness of a disclosed hash value xi can be verified by checking the equation $x_n \\stackrel{?}{=} \\hash^{n ...
Dea Hyun Yum, Jin Seok Kim, Lee, PJ, Hong, SJ   +3 more
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Analysis of hashing with chaining in the prime area

Journal of Algorithms, 1984
Abstract The expected performance of hashing with chaining in the prime area is analyzed. The method analyzed is briefly characterized as hashing with chaining of overflow records in the prime storage area, using one or several noncoalescing chains per bucket, and with random search for empty space.
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