Ayush Kumar Rai
Cloud Security Engineer
Ayush specializes in cloud-native security, SSH key management, and Kubernetes workload identity. He builds and documents secure infrastructure patterns for modern cloud environments.
28 articles published
Cryptography
Key Management Best Practices for Enterprise: A Practical GuideCryptographic key management is where encryption succeeds or fails. Here's how to manage keys across cloud, on-premises, and hybrid environments — with practical patterns for generation, storage, rotation, and destruction.
05 Apr, 2026 · 06 Mins read
Code signing
Sigstore and CosignSigstore provides keyless code signing using identity-based short-lived certificates and a public transparency log. Here's how it works, how cosign signs containers, and why keyless signing changes the game.
04 Apr, 2026
Code signing
Code Signing and Software Supply Chain Security: A Complete GuideCode signing proves software authenticity and integrity. Here's how to implement it across CI/CD pipelines, protect signing keys, and defend against supply chain attacks like SolarWinds and xz-utils.
20 Mar, 2026 · 05 Mins read
Ssl tls
What is HSTSHSTS tells browsers to always use HTTPS for a domain, eliminating HTTP-to-HTTPS redirect vulnerabilities. Here's how it works, how to configure it safely, and what happens when you get it wrong.
20 Mar, 2026
Ssl tls
What is ACME ProtocolACME (Automatic Certificate Management Environment) is the protocol that lets machines request, validate, and renew TLS certificates without human intervention. Here's how it works, what challenge types exist, and where automation fails.
02 Mar, 2026
Cloud
AWS KMS vs Azure Key Vault vs Google Cloud KMS: Complete ComparisonAll three cloud providers offer key management services, but they differ in architecture, pricing, compliance levels, and integration depth. Here's a practical comparison to help you choose.
28 Feb, 2026 · 05 Mins read
Post quantum
Q-Day Predictions: When Will Quantum Computers Break RSA?Analyze current Q-Day timeline estimates from NIST, NSA, and industry researchers. Understand what the predictions mean for your encryption migration planning.
19 Jan, 2026 · 04 Mins read
Post quantum
Harvest-Now-Decrypt-Later: Why Your Encrypted Data Is Already at RiskUnderstand the harvest-now-decrypt-later threat model, how adversaries exploit it today, and what immediate actions protect your long-lived encrypted data from future quantum decryption.
11 Jan, 2026 · 04 Mins read
Post quantum
Crypto-Agility Migration Guide: Preparing Your Enterprise for Post-Quantum AlgorithmsA step-by-step guide to building crypto-agility into your enterprise. Learn how to integrate CLM, plan hybrid deployments, and prepare infrastructure for post-quantum algorithms.
08 Jan, 2026 · 04 Mins read
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