SSL Certificates Are About to Expire Every 47 Days — Are We Ready?
47-day SSL certificates are coming by 2029. Learn what’s changing, how to automate renewals with ACME through Sectigo, and what it’ll cost — no jargon.
Digital Signatures and PKI
How to Sign a PDF Using a DSC Token: A Step-by-Step Guide
Signing a PDF with a DSC token takes just a few minutes once your token is set up. Here’s the complete step-by-step guide, from selecting your certificate to confirming the finished signature is valid.
Can You Digitally Sign Invoices in Tally? Here’s How to Set It Up
Yes, you can digitally sign invoices in TallyPrime using a DSC token. Here’s the complete step-by-step guide to setup, configuration, signing, and verifying your digitally signed invoices.
What Happened to Class 1, 2, and 3 Certificates? A Guide to India’s DSC Validation Levels
India’s CCA defines DSC classes by verification depth and key protection standard. Here’s why document signer certificates are typically issued at Class 2 and individual DSCs at Class 3, and how to choose the right one for your business.
Certificate File Formats Explained: .pem, .der, .p12, .pfx, and When to Use Each
Certificate file formats like .pem, .der, .p12, and .pfx often confuse business owners working with hosting providers or developers. Here’s what each one actually contains, when to use it, and how to convert between them.
What Is a Document Signer Certificate, and How Is It Different from an Individual Digital Signature Certificate?
A document signer certificate is issued to an organization through the eKYC of an authorized signatory, built for automated, high-volume document signing. Here’s how it differs from an individual DSC and how to set one up.
What Is PKI? The System Behind Every Padlock, Signature, and Secure Email
PKI is the trust system behind your website’s padlock, your signed contracts, and your verified business email. Here’s how public and private keys work, the components of a PKI system, and why it matters for your business
What Is S/MIME? A Small Business Guide to Verified, Encrypted Email
S/MIME is a certificate-based standard that proves your email is really from you and keeps sensitive messages private. Here’s how it works, why email impersonation costs businesses billions, and how to set it up in an afternoon.
What Is a Certificate Authority, and Why Should You Trust One?
A certificate authority verifies identity online and issues the digital certificates behind SSL, e-signatures, and secure email. Here’s how the trust system actually works — and how to choose the right global CA for your business
How Digital Signatures Work (Step-by-Step Explanation)
Learn how digital signatures work step-by-step using hashing, private key encryption, and PKI. Understand secure document signing and verification in simple terms.