Amarjeet Shukla

Three CAs dominate the TLS certificate market with very different models. Here's a practical comparison covering cost, automation, validation levels, support, and when each makes sense.

Nation-state adversaries are recording encrypted traffic today, planning to decrypt it when quantum computers arrive. Here's why this matters now, what data is at risk, and how to protect long-lived secrets.

Every IoT device needs a cryptographic identity to authenticate securely. Here's how to provision certificates at manufacturing scale, manage them over 10-20 year device lifetimes, and handle the unique challenges of constrained environments.

TLS 1.3 removed insecure options, reduced latency to 1-RTT, and encrypted the handshake. Here's a complete comparison with TLS 1.2, what breaks during migration, and how to configure both correctly.

Financial services face unique PKI challenges: regulatory mandates, payment security, high-availability requirements, and massive certificate volumes. Here's how banks and financial institutions should approach PKI.

Public and private keys are the foundation of modern encryption, digital signatures, and TLS. Here's how key pairs work, where they're used, and what happens when a private key is compromised.

SOC 2 audits examine your cryptographic controls under Common Criteria CC6 and CC7. Here's what auditors test, what evidence to prepare, and how to pass without findings on encryption and certificate management.

Learn what causes SSL handshake failed errors and how to troubleshoot TLS issues on clients and servers using proven enterprise-grade fixes.

Encryption algorithms transform readable data into unreadable ciphertext. Here's how the major algorithms work (AES, RSA, ECC, ChaCha20), their strengths and weaknesses, and which to use for each scenario.

SSL is dead. TLS replaced it in 1999. Here's what actually changed, why the name 'SSL' persists, and what you need to know about TLS versions for your infrastructure.