Computer Science > Cryptography and Security
[Submitted on 30 Mar 2022]
Title:$crypto_{lib}$: Comparing and selecting cryptography libraries (long version of EICC 2022 publication)
View PDFAbstract:Selecting a library out of numerous candidates can be a laborious and resource-intensive task. We present the $crypto_{lib}$ index, a tool for decision-makers to choose the best fitting cryptography library for a given context. To define our index, 15 library attributes were synthesized from findings based on a literature review and interviews with decision-makers. These attributes were afterwards validated and weighted via an online survey. In order to create the index value for a given library, the individual attributes are assessed using given evaluation criteria associated with the respective attribute. As a proof of concept and to give a practical usage example, the derivation of the $crypto_{lib}$ values for the libraries Bouncy Castle and Tink are shown in detail. Overall, by tailoring the weighting of the $crypto_{lib}$ attributes to their current use case, decision-makers are enabled to systematically select a cryptography library fitting best to their software project at hand in a guided, repeatable and reliable way.
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