QCecuring - Enterprise Security Solutions

Sujit Kumar

Software Engineer — Code Signing

Sujit builds code signing workflows at QCecuring. He writes about software supply chain security, signing best practices, and developer-friendly security tooling.

Insights by Sujit Kumar

Code signing

How To Generate PGP Key Pair (2025 Complete Guide)

Generate secure PGP key pairs with GPG, Kleopatra, and CLI tools. Best practices for Windows, Linux, macOS, and enterprise key management.

By Sujit Kumar

14 Dec, 2025 · 16 Mins read

Code signing

What Is Code Signing? The Enterprise Guide to Supply Chain Trust

Learn what code signing is, how it works, and why enterprises rely on it to secure software, CI/CD pipelines, and trust.

By Sujit Kumar

12 Dec, 2025 · 04 Mins read

Pki

What Is a Trust Store? Issues & How to Fix Certificate Errors (2025)

Struggling with trust store errors like 'certificate not trusted' or 'unable to find valid certification path'? Learn what a trust store is, how trust stores validate SSL certificates, common trust store issues, and step-by-step fixes for Windows, Linux, macOS, Python, Node.js, Docker, and more.

By Sujit Kumar

28 Nov, 2025 · 19 Mins read

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