Проблеми інтеграції постквантових криптографічних алгоритмів у програмні системи на керованих платформах

Abstract

The migration to post-quantum cryptography (PQC) is becoming an important and urgent task for the software engineering industry following the NIST standardization of lattice-based algorithms ML-KEM and ML-DSA in 2024. While reference implementations of these algorithms are developed in C/C++ with low-level hardware optimizations, a significant portion of enterprise software operates on managed runtime platforms such as .NET and JVM. This paper presents a systematic analysis of the key challenges associated with integrating PQC algorithms into managed environments: performance issues caused by garbage collection and memory allocations, limited access to SIMD instructions, and increased sizes of cryptographic keys and ciphertexts. A classification of potential optimization approaches available in modern .NET is proposed, including stack allocation via Span, hardware intrinsics, and memory pooling strategies. The results provide a structured foundation for further empirical research on PQC performance optimization in managed software ecosystems.