scholarly journals DSA with SHA-1 for Space Telecommand Authentication: Analysis and Results

2009 ◽  
Vol 5 (1) ◽  
pp. 26
Author(s):  
Susanna Spinsante ◽  
Ennio Gambi
Keyword(s):  
Digital Signature ◽  
Data Systems ◽  
Space System ◽  
Security Services ◽  
Commercial Space ◽  
Computational Overhead ◽  
Digital Signature Algorithm ◽  
Hash Algorithm ◽  
Pros And Cons ◽  
Space Data

The issue of securing Telecommand data communications in civil and commercial space missions, by means of properly located security services and primitives, has been debated within the Security Working Group of the ConsultativeCommittee for Space Data Systems since several months. In the context of Telecommand transmissions, that can be vital in determining a successful operational behavior of a space system, the interest is mainly focused on authentication, more than encryption. The object of this paper is to investigate, under the perspective of computational overhead, the possible applicability of a standard scheme, Digital Signature Algorithm with SHA-1, to the authentication of Telecommand data structures, andto discuss the pros and cons related to its adoption in such a peculiar context, through numerical simulations and comparison with an alternative solution relying on the widely used MD5 hash algorithm.

The Design and Implementation of the MD5 Algorithm Based on FPGA

2013 ◽  
Vol 427-429 ◽  
pp. 806-809 ◽  
Author(s):  
Lei Wang ◽  
Yan Yan Yu ◽  
Qian Huang ◽  
Jun Yang ◽  
Zheng Peng Zhao
Keyword(s):  
Digital Signature ◽  
Hardware Implementation ◽  
Fpga Design ◽  
Design And Implementation ◽  
Fast Implementation ◽  
Digital Signature Algorithm ◽  
Hash Algorithm

This paper introduces the principle of digital signature algorithm MD5, focused on the calculation phase of the algorithm, the algorithm structure iteration of the loop, and to optimize its calculation phase, and given FPGA design icon, the experiment can be drawn based on FPGA with less resource, fast implementation of the MD5 algorithm. The hardware implementation of the MD5 hash algorithm HMACs build encryption accelerator which has some practical value.

scholarly journals Data Integrity and Security using Keccak and Digital Signature Algorithm (DSA)

2019 ◽  
Vol 13 (3) ◽  
pp. 273
Author(s):  
Muhammad Asghar Nazal ◽  
Reza Pulungan ◽  
Mardhani Riasetiawan
Keyword(s):  
Digital Signature ◽  
Data Security ◽  
Hash Function ◽  
Digital Signatures ◽  
Literature Study ◽  
Data Verification ◽  
Digital Signature Algorithm ◽  
Hash Algorithm ◽  
Secure Hash Algorithm ◽  
Better Than

Data security is a very important compilation using cloud computing; one of the research that is running and using cloud technology as a means of storage is G-Connect. One of the developments made by the G-Connect project is about data security; most of the problems verification of the data sent. In previous studies, Keccak and RSA algorithms have implemented for data verification needs. But after a literature study of other algorithms that can make digital signatures, we found what is meant by an algorithm that is better than RSA in rectangular speeds, namely Digital Signature Algorithm (DSA).DSA is one of the key algorithms used for digital signatures, but because DSA still uses Secure Hash Algorithm (SHA-1) as an algorithm for hashes, DSA rarely used for data security purposes, so Keccak is used instead of the hash algorithm on DSA. Now, Keccak become the standard for the new SHA-3 hash function algorithm. Because of the above problems, the focus of this research is about data verification using Keccak and DSA. The results of the research are proven that Keccak can run on DSA work system, obtained a comparison of execution time process between DSA and RSA where both use Keccak.

scholarly journals Development of digital signature algorithm based on the Niederriter crypto-code system

2020 ◽  
pp. 86-94
Author(s):  
О.С. Циганенко
Keyword(s):  
Digital Signature ◽  
Quantum Computer ◽  
Security Services ◽  
Practical Algorithms ◽  
Code Structure ◽  
Digital Signature Algorithm ◽  
Computer Based ◽  
Code Constructions ◽  
Post Quantum Cryptography ◽  
Efficiency And Reliability

The development of computing resources in the post-quantum period calls into question the provision of the required level of stability of symmetric and asymmetric cryptography algorithms. The advent of a full-scale quantum computer based on the Shore and Grover algorithms greatly increases the capabilities of cybercriminals and reduces the resilience of cryptosystems used in protocols for basic security services. The article analyzes the main requirements for resistance to post-quantum cryptography algorithms. In such conditions, it is necessary to use modified cryptosystems that provide an integrated required level of stability and efficiency of cryptocurrencies. One such mechanism is the crypto-code constructs of McEliece and Niederriter, which provide the required indicators of durability, efficiency and reliability. The paper analyzes the construction of the crypto-code structure of the Niederriter on elliptical (EC), modified elliptical codes (MEC) shortened and / or extended, and defective codes, practical algorithms for their implementation. An advanced protocol for the formation of a digital signature using Niederriter crypto-code constructions is proposed.

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