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arXiv · 2511.11292

KEM-IND-CCA-Preserving Compilation of Jasmin's ML-KEM

Santiago Arranz-Olmos·Gilles Barthe·Lionel Blatter·Benjamin Grégoire·Vincent Laporte·Paolo Torrini
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Abstract

High-assurance cryptography provides strong guarantees that source implementations are functionally correct and provably secure. In this paper, we demonstrate that the Jasmin compiler preserves functional correctness and KEM-IND-CCA security (which were established in prior work) of a highly optimized Jasmin implementation of ML-KEM used in the popular messenger Signal. Our proof of preservation is fully mechanized in the Rocq prover and is based on three general contributions: (1) A general framework for modeling game-based security and for reasoning about preservation of game-based security under compilation. (2) A new, interaction-trees-based semantics of Jasmin and assembly programs. Our new semantics supports features required by ML-KEM, such as probabilistic computations and rejection sampling routines. (3) A new relational Hoare logic for interaction trees, which we use to prove correctness of the JASMIN compiler under our new semantics.

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Santiago Arranz-Olmos, Gilles Barthe, Lionel Blatter, Benjamin Grégoire, Vincent Laporte, Paolo Torrini. 2025-11-14. KEM-IND-CCA-Preserving Compilation of Jasmin's ML-KEM. https://arxiv.org/abs/2511.11292

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