u/AdNumerous8360

▲ 3 r/java

Built a Secure Hybrid Crypto Engine in Java (ML-KEM + ML-DSA + RSA/ECDSA) — started from PQC benchmarking work on a banking infrastructure

Background: I was benchmarking PQC algorithms (ML-DSA, ML-KEM) using Bouncy Castle on financial messaging workloads. The benchmarking surfaced a lot of infrastructure-level challenges that pure algorithm testing doesn’t show.

That research led me to build this: github.com/sai-keerthan/secure-hybrid-crypto-engine — a hybrid crypto engine combining classical (RSA, ECDSA, AES-GCM) and post-quantum (ML-KEM, ML-DSA) in composable signing/encryption workflows.

If you’re working with Bouncy Castle’s PQC APIs, happy to discuss implementation specifics. Wrote up the broader findings here too: https://medium.com/@kasulakeerthan/post-quantum-cryptography-migration-is-an-ecosystem-problem-not-an-algorithm-problem-04ca5855651d

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u/AdNumerous8360 — 1 day ago