MAKING POST-QUANTUM KEY EXCHANGE EFFICIENT: IMPLEMENTATION WITH THE MESSAGING LAYER SECURITY PROTOCOL
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Authors
Greene, Noah R.
Subjects
cryptography
cybersecurity
Messaging Layer Security
group messaging
efficiency
performance
analysis
Hybrid Post-Quantum Messaging Layer Security
HPQMLS
Messaging Layer Security
MLS
post-quantum
PQ
cybersecurity
Messaging Layer Security
group messaging
efficiency
performance
analysis
Hybrid Post-Quantum Messaging Layer Security
HPQMLS
Messaging Layer Security
MLS
post-quantum
PQ
Advisors
Lukefahr, Joseph W.
Hale, Britta
Date of Issue
2025-03
Date
Publisher
Monterey, CA; Naval Postgraduate School
Language
Abstract
The continual development of quantum computer technology poses a serious and credible threat to modern public-key cryptography, which is a pillar of secure communications. This work develops code to implement, test, and substantiate the feasibility of the Hybrid Post-Quantum Messaging Layer Security (HPQMLS) Combiner protocol as a means of balancing performance with the security provided by new post-quantum (PQ) encryption schemes. Comparisons are drawn between the HPQMLS and traditional Messaging Layer Security (MLS) using traditional and post-quantum cipher suites. Consideration is made for the impact of group size, and computational effort was measured through the runtime of practical simulations. The HPQMLS performed faster across the board when compared to MLS running a post-quantum cipher suite, and at small group sizes performs comparably to MLS using a traditional cipher suite. This work shows that HPQMLS is a viable means of achieving efficient PQ security for MLS communication and is therefore a proof of concept for achieving more efficient PQ integration writ large.
Type
Thesis
Description
Series/Report No
NPS Outstanding Theses and Dissertations
Department
Computer Science (CS)
Organization
Identifiers
NPS Report Number
Sponsors
Funder
Format
Citation
Distribution Statement
Distribution Statement A. Approved for public release: Distribution is unlimited.
Rights
This publication is a work of the U.S. Government as defined in Title 17, United States Code, Section 101. Copyright protection is not available for this work in the United States.