Military Communications and Information Technology: A Trusted ...

Chapter 4: Information Assurance & Cyber Defence
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be increased twofold. The time of data generation using a single thread amounts
to ca. 1.5 minutes, whereas the average time of a set generation using 2 threads
is reduced by half.
Afterwards, the encryption performance and shortening of files containing
sequences of pseudo-random numbers was tested. In the encryption time, the files
are saved in blocks of a few hundred bytes on the disk. As the main problem
consists in the saving time of a large number of short blocks to a disk, the increase
in the generation threads number does not improve the generation station
performance.
VI. Conclusions
Although the test comprised merely a few performance metrics, it was sufficient
to confirm that the processes complicated in terms of calculation are prone
to turning parallel and improving the generation time. Poorer results were obtained
for operations that required saving of large amount of data to a disk. It seems
that it will be possible to eliminate the restriction through the use of its buffering
in the operational memory.
The CDGC stand was installed on a multi-core computer using the parallel
cryptographic material generation method. This solution is well suited to be used
in cryptographic data generation systems for the currently operated and future
communication networks. This will allow for increasing their performance several
times. At the same time, this method will not deteriorate the security of the generated
data, what is more, it will improve it by being able to perform additional
procedures to verify this data, e.g. constant testing of the random sequence quality
derived from the random generator.
References
[1] J. Kirk, Estonia recovers from Massie denial of service attack, IDG News Service,
Inforworld, http://www.infoworld.com/article/07/05/17/estonia-denial-of-serviceattack_1.html,
May 17, 2007.
[2] C. Wilson, Computer Attack and Cyberterrorism: Vulnerabilities and Policy Issues
for Congress, CRS Report RL32114, Updated April 1, 2005, p. 18.
[3] N. Granado, G. White, Cyber security and government fusion center, Center for
Infrastructure Assurance and Security, The University of Texas at San Antonio, 41st
International Conference on System Science, Hawaii 2008.
[4] October Cyberattacks on Poland, www.rp.pl/artykul/2,375962_Cyberatak_ na_Polske.
html, 2009.
[5] A.J. Menezes, P.C. van Oorschot, S.A. Vanstone, Applied cryptography, WNT 2005.