Evaluating the Impact of Latency in a Virtual Private Network Performance Using Different Encryption Algorithm and Hashing

Edwin Kwesigabo

doi:10.59645/tji.v4i1.245

Authors

Edwin Kwesigabo a:1:{s:5:"en_US";s:3:"IFM";}

DOI:

https://doi.org/10.59645/tji.v4i1.245

Keywords:

Latency, Virtual Private Network, Performance, Encryption, Tanzania.

Abstract

This study analyzes the performance of a network, specifically on advanced encryption standard and Triple data encryption standard when used with secure hash algorithm and Message digest-5 hashing algorithms, when the communication between two communicating nodes is aided by virtual private network connectivity. The study involved two cases; one with AES and the other with 3DES at which each case had a set of two test scenarios which simulated the performance of the selected protocols to simulate the intended scenarios. The simulation scenarios were configuring AES256 with SHA256, AES256 with MD5 and 3DES with SHA256 as well as 3DES with MD5. The simulations carried out measured the latency that impacted the VPN network. Data was collected using network simulation tool “the Ping tool” in an Ubuntu 20.0.1 environment. It is founded that the hashing algorithm SHA256 experienced high Latency compared to MD5 which is contributed by the capacity of processing the hash value by SHA256. Sha256 Produces a hash value that is 266 bits long while MD5 produces a hash value that is 128 bits long, the longer the hash value the longer time is taken to process it. This causes more latency in the network

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