Shashi Shekhar J.

I work as an applied cryptography consultant at Compozite Research, helping organizations design, audit, implement, and migrate cryptographic systems in a post-quantum world. My work spans two tightly connected areas: hands-on cryptographic implementation (C/C++, Rust, Python) and post-quantum cryptography (PQC) risk assessment and migration planning aligned with NIST standards. I help teams understand where cryptography is actually deployed in their systems across TLS, PKI, certificates, identity flows, cloud services, APIs, and blockchains and what needs to change as RSA and ECC become insecure. Beyond PQC, I work on privacy-preserving cryptography, including zero-knowledge proofs, MPC/threshold cryptography, and cryptographic protocols used in blockchain and decentralized systems. This allows me to evaluate security, privacy, and performance together, rather than treating them as isolated concerns. I regularly support security audits, client reviews, and advisory engagements, joining technical calls, answering cryptography questions, and producing clear, defensible reports for both engineers and non-technical stakeholders. My focus is practical delivery: making cryptography secure, auditable, and deployable in real systems, not just theoretically correct.