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Identity-Based Encryption: A Comparison of Leading Classical and Post-Quantum Implementations in an Enterprise Setting
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IBE consolidates the PKI by eliminating the repetitive process of requesting public keys for each message encryption. Two of the most popular schemes are Sakai-Kasahara (SAKKE), which is based on elliptic curve pairings, and the Ducas, Lyubashevsky, and Prest lattice scheme (DLP- Lattice), which is based on quantum-secure lattice cryptography. In or- der to embed the schemes in a standard enterprise setting, both schemes are implemented as shared system libraries and integrated into a REST service that functions at the enterprise level. The performance of both schemes as libraries and services is compared, and the practicalities of implementation and application are discussed. Our performance results indicate that although SAKKE has the smaller key and ciphertext sizes, DLP-Lattice is significantly faster overall and we recommend it for most enterprise use cases. <iframe src="https://publications.waset.org/abstracts/146066.pdf" style="width:100%; height:400px;" frameborder="0"></iframe> <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=identity-based%20encryption" title="identity-based encryption">identity-based encryption</a>, <a href="https://publications.waset.org/abstracts/search?q=post-quantum%20cryptography" title=" post-quantum cryptography"> post-quantum cryptography</a>, <a href="https://publications.waset.org/abstracts/search?q=lattice-based%20cryptography" title=" lattice-based cryptography"> lattice-based cryptography</a>, <a href="https://publications.waset.org/abstracts/search?q=IBE" title=" IBE"> IBE</a> </p> <a 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