Practitioner-grade cybersecurity content
Technical playbooks, war stories, and how-to-think guides — written by practitioners, anchored to the Indian context.
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Most recent practitioner playbooks across every track. Filter by topic in the sidebar, or use search.
Quantum Key Distribution (QKD) — Hype vs Reality, and Why PQ Cryptography Wins
QKD uses photonics for physics-based key exchange. Marketing pitches it as uncrackable. Reality: dedicated fibre, expensive, doesnt authenticate, and ML-KEM solves the…
AcademyHybrid PQ Deployment — TLS, SSH, IPsec, S/MIME with Classical + ML-KEM Together
Run classical (X25519) + post-quantum (ML-KEM-768) in the same handshake. Adversary needs both to break. Concrete configs for nginx, OpenSSH, strongSwan, Cloudflare.…
AcademySLH-DSA (SPHINCS+) — Hash-Based Signatures for the Long Haul
SLH-DSA (FIPS 205) is the conservative hash-based PQ signature alternative — security rests on hash functions only, no lattice assumptions. When to…
AcademyML-DSA (Dilithium) Signatures — Replacing RSA and ECDSA in Code Signing, JWT, and PKI
ML-DSA (FIPS 204) replaces RSA and ECDSA for digital signatures. How lattice signatures work, three security levels, size impact on TLS/JWT/code-signing, the…
AcademyML-KEM (Kyber) Deep Dive — Lattice-Based Key Encapsulation Explained
ML-KEM (FIPS 203) is the NIST-standard PQ key exchange replacing RSA and ECDH. Lattice math at intuition level, three security levels, hybrid…
AcademyPost-Quantum Cryptography 101 — NIST FIPS 203, 204, 205 (ML-KEM, ML-DSA, SLH-DSA) Explained
NIST's final PQ standards orientation: ML-KEM (FIPS 203) replaces RSA/ECDH, ML-DSA (FIPS 204) replaces RSA/ECDSA signatures, SLH-DSA (FIPS 205) is the conservative…
AcademyGrover’s Algorithm — Symmetric Crypto’s New Math (Hint: AES-256 Wins)
Grover halves symmetric crypto security in bits — AES-128 weakened, AES-256 still safe. SHA-256 collision resistance halves but stays secure. Practical migration:…
AcademyShor’s Algorithm Explained — Why RSA and ECC Will Break
Shor's algorithm factorises integers and computes discrete logs in polynomial time on a quantum computer — breaking RSA and ECC. How it…
AcademyWhy Quantum Matters for Cybersecurity — The Post-Quantum Threat in Plain English
The post-quantum threat quantified — what crypto breaks, when CRQC arrives, store-now-decrypt-later risk, Mosca theorem, and what your CISO should be telling…
AcademyWhat is Quantum Computing — Qubits, Superposition, Entanglement (Beginner)
Quantum computing fundamentals for security practitioners — qubits, superposition, entanglement, gates, and what quantum computers can and cannot do. Module 1 of…