Prakash M, CISSP ((ISC)²)
Security tools for people who already do the work.
I’m Prakash M. I passed CISSP on the first attempt after two months of self-study. These tools run in your browser. Nothing you paste is stored.
JWT, CIDR, hashes, passphrases, secret scan, headers. Certificates are on SelfSignedCert.
Tools on this site
Built for working security and IT people. Paste locally. I do not keep the input.
JWT inspector
Decode a token, read claims, and see expiry. Signature is not verified.
CIDR calculator
Network, mask, broadcast, usable hosts. IPv4. For firewall and VPC math.
Hash lab
SHA-256, SHA-384, SHA-512, and SHA-1 in this tab. Nothing is sent.
Passphrase generator
Random passwords or word-based phrases from the browser CSPRNG.
Secret scanner
Paste logs or a .env dump. Flags keys, tokens, PEMs, and JWTs locally.
Header check
Fetch a public URL and score HSTS, CSP, frame options, and MIME sniffing.
Certificates
For SSL, use SelfSignedCert
Self-signed SSL, CSR, Root CA, and mTLS — in the browser. Generate a localhost cert, Root CA, host cert, mTLS client cert, or CSR. Decode PEMs, check a live site, convert PEM/PFX — keys stay in the browser.
I’m Prakash M
I passed CISSP on the first attempt after about two months of self-study, while working. These pages are the small tools I reach for when I do not want another SaaS login. The heavy certificate work lives on SelfSignedCert.
Verify my CISSPProof
CISSP, first attempt
Issued by (ISC)². Verify the badge on Credly.
Contact
Write to me
Email is the way to reach me. I read every message that lands here — a security question, a career note, or something you’re stuck on.
prakash.cyberinfosec@gmail.comPrefer a live conversation? Book 30 minutes.
30 minutes
Book a call
I’m a passionate cybersecurity engineer — CISSP-certified, still training, still in the work. I passed on the first attempt after two months of self-study while holding a job. The badge is a checkpoint, not a finish line. I keep training because the field does not sit still, and I built SelfSignedCert because a private key should never leave your tab.
If you are passionate about cybersecurity and need to connect, use the calendar below to book a call. Bring a problem, a career question, or something you’re stuck on. Thirty minutes. No pitch deck.