{"id":5188,"date":"2021-05-21T17:48:46","date_gmt":"2021-05-21T17:48:46","guid":{"rendered":"https:\/\/signdesk.com\/in\/?p=5188"},"modified":"2025-11-26T04:21:44","modified_gmt":"2025-11-26T09:51:44","slug":"how-digital-signature-works","status":"publish","type":"post","link":"https:\/\/melento.ai\/en-in\/blog\/how-digital-signature-works","title":{"rendered":"How Digital Signatures Work &#8211; The science behind secure eSign"},"content":{"rendered":"<p style=\"text-align: justify; font-size: 17px; font-family: 'open sans';\">Imagine your team just closed a \u20b9200 crore strategic deal. The paperwork? Wrapped up in under 10 minutes, with signatories sitting in three different time zones. No courier delays. No scanning errors. No compliance doubts.<\/p>\n<p style=\"text-align: justify; font-size: 17px; font-family: 'open sans';\">That\u2019s the invisible magic of digital signatures, and it\u2019s <a href=\"https:\/\/www.techsciresearch.com\/report\/india-digital-signature-solution-market\/24769.html\"><span style=\"font-weight: 400;\">transforming how modern businesses operate<\/span><\/a><span style=\"font-weight: 400;\">!<\/span><\/p>\n<p style=\"text-align: justify; font-size: 17px; font-family: 'open sans';\">Yet, many CXOs still ask: <span style=\"font-weight: 400;\">How do digital signatures work<\/span><span style=\"font-weight: 400;\">?\u00a0 Are they legally valid?\u00a0 Can they protect us in court?<\/span><\/p>\n<p style=\"text-align: justify; font-size: 17px; font-family: 'open sans';\">Let\u2019s clear the air. In this guide, we break down the mechanics of digital signatures and outline their legal foundation. And show how Melento has helped 3,000+ enterprises achieve compliance, speed, and trust at scale \u2013 You can be the next!<\/p>\n<p style=\"text-align: justify; font-size: 17px; font-family: 'open sans';\">Want a secure, compliant signing flow that closes faster? Keep reading.<\/p>\n<h2><span style=\"color: #2c5363;\"><b>Why CXOs Need to Understand Digital Signatures Are Better for Compliance<\/b><\/span><\/h2>\n<p style=\"text-align: justify; font-size: 17px; font-family: 'open sans';\">The Shift From Manual to Digital \u2013 It\u2019s Not Just Faster, It\u2019s Smarter<\/p>\n<p style=\"text-align: justify; font-size: 17px; font-family: 'open sans';\">Let\u2019s face it, manual signatures are holding your business back. 65% of companies that use manual signing reported that collecting physical signatures takes an entire working day.<\/p>\n<p style=\"text-align: justify; font-size: 17px; font-family: 'open sans';\"><b>From vendor contracts sitting on desks for days to documents lost in courier transit, manual signing creates invisible friction that costs enterprises time, trust, and money.<\/b><\/p>\n<p style=\"text-align: justify; font-size: 17px; font-family: 'open sans';\">But not anymore \u2013 it\u2019s 2025, and your competitors are already shifting from pen to pixel, from friction to flow, shortening the sales cycle by 400%.\u00a0 As a CXO, you are the custodian of speed, trust, and compliance in your organization.<\/p>\n<table>\n<tbody>\n<tr>\n<td><i><span style=\"font-weight: 400;\">\u201ceSign gives us higher operational efficiency, which is what I am okay with, since the alternative is physical signatures, which makes the entire process cumbersome and expensive,\u201d <\/span><\/i><\/p>\n<p><b><i>\u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0&#8211; Nithin Kamath, CEO, Zerodha<\/i><\/b><\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p style=\"text-align: justify; font-size: 17px; font-family: 'open sans';\">Your brand\u2019s reputation, legal protection, and revenue velocity now depend on how intelligently you digitize mission-critical processes, such as signing.<\/p>\n<h3><span style=\"color: #2c5363;\"><b>What Are Digital Signatures: Pillar of Digital Transformation?<\/b><\/span><\/h3>\n<p style=\"text-align: justify; font-size: 17px; font-family: 'open sans';\">A digital signature is not just an image of your signature.\u00a0 It\u2019s a cryptographic fingerprint that securely and irreversibly binds a signer&#8217;s identity to a digital document.<\/p>\n<p style=\"text-align: justify; font-size: 17px; font-family: 'open sans';\">Under the Information Technology Act of 2000, digital signatures are legally recognized in India and are backed by PKI (Public Key Infrastructure) for security.<\/p>\n<p style=\"text-align: justify; font-size: 17px; font-family: 'open sans';\">Moreover, digital transformation isn&#8217;t just about buying the latest tech \u2013 it\u2019s about rethinking how your business works. And digital signatures are foundational to this journey.<\/p>\n<table>\n<tbody>\n<tr>\n<td>\n<p style=\"text-align: justify; font-size: 17px; font-family: 'open sans';\"><b>A study revealed that enterprises that adopted digital signatures as part of their document lifecycle saw:<\/b><\/p>\n<ul>\n<li style=\"text-align: justify; font-size: 17px; font-family: 'open sans';\">80% reduction in signing errors<\/li>\n<li style=\"text-align: justify; font-size: 17px; font-family: 'open sans';\">70-80% improvements in efficiency<\/li>\n<li style=\"text-align: justify; font-size: 17px; font-family: 'open sans';\">15 days faster contract turnaround time<\/li>\n<\/ul>\n<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p style=\"text-align: justify; font-size: 17px; font-family: 'open sans';\">Any CXO would want the same results for their business, right?\u00a0 Whether you\u2019re digitizing loan disbursals, sales agreements, vendor onboarding, or HR workflows, digital signatures accelerate trust at scale.<\/p>\n<h3><span style=\"color: #2c5363;\"><b>Business Risks of Misunderstanding eSign vs. Digital Signatures<\/b><\/span><\/h3>\n<p style=\"text-align: justify; font-size: 17px; font-family: 'open sans';\">Let\u2019s clear up a major misconception: Not all eSignatures are created equal.<\/p>\n<p style=\"text-align: justify; font-size: 17px; font-family: 'open sans';\">Many CXOs assume that dragging a signature image onto a PDF constitutes a digital signature. It doesn\u2019t.<\/p>\n<table>\n<thead>\n<tr>\n<th style=\"background-color: #ffffff;\" colspan=\"2\">\n<h2><span style=\"color: #2c5363;\"><b>eSignature vs Digital Signature: What You Need to Know<\/b><\/span><\/h2>\n<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td>\n<p style=\"text-align: justify; font-size: 17px; font-family: 'open sans';\"><b>eSignature<\/b><\/p>\n<\/td>\n<td>\n<p style=\"text-align: justify; font-size: 17px; font-family: 'open sans';\"><b>Digital Signature<\/b><\/p>\n<\/td>\n<\/tr>\n<tr>\n<td>\n<ul>\n<li style=\"text-align: justify; font-size: 17px; font-family: 'open sans';\">Designed for convenience \u2013 includes typed names, click-to-sign, scanned images<\/li>\n<\/ul>\n<ul>\n<li style=\"text-align: justify; font-size: 17px; font-family: 'open sans';\">Legally valid under the IT Act if intent and consent are proven<\/li>\n<\/ul>\n<ul>\n<li style=\"text-align: justify; font-size: 17px; font-family: 'open sans';\">Basic signer identity (name\/email) captured<\/li>\n<\/ul>\n<ul>\n<li style=\"text-align: justify; font-size: 17px; font-family: 'open sans';\">Best for speed and ease of use in informal workflows<\/li>\n<\/ul>\n<\/td>\n<td>\n<ul>\n<li style=\"text-align: justify; font-size: 17px; font-family: 'open sans';\">Backed by secure digital certificates issued by licensed authorities<\/li>\n<\/ul>\n<ul>\n<li style=\"text-align: justify; font-size: 17px; font-family: 'open sans';\">Legally binding, identity-verified, and non-repudiable under the Indian IT Act, 2000<\/li>\n<\/ul>\n<ul>\n<li style=\"text-align: justify; font-size: 17px; font-family: 'open sans';\">Complete identity verification via Aadhaar, DSC, PAN, or enterprise login<\/li>\n<\/ul>\n<ul>\n<li style=\"text-align: justify; font-size: 17px; font-family: 'open sans';\">Built for compliance, enforceability, and trust in enterprise and legal use cases<\/li>\n<\/ul>\n<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p style=\"text-align: justify; font-size: 17px; font-family: 'open sans';\">Understanding the difference between eSignatures and legally binding digital signatures is a business imperative for survival.<\/p>\n<p style=\"text-align: justify; font-size: 17px; font-family: 'open sans';\">Digital signatures are easy to use &amp; essentially involve a single click.\u00a0 However, behind this simple process of clicking and selecting a signature source is a complex workflow involving multiple instances of encryption and decryption.<\/p>\n<p style=\"text-align: justify; font-size: 17px; font-family: 'open sans';\">Understanding how digital signatures work is integral to understanding why they\u2019re secure.<\/p>\n<h2><span style=\"color: #2c5363;\"><b>How Digital Signature Works in India: Simplified for CXOs<\/b><\/span><\/h2>\n<p style=\"text-align: justify; font-size: 17px; font-family: 'open sans';\">You don\u2019t need to be a cryptographer to understand how digital signatures work. As a CXO, what you need is clarity on how this technology protects your contracts, builds trust, and ensures compliance across high-stakes workflows.<\/p>\n<p style=\"text-align: justify; font-size: 17px; font-family: 'open sans';\">Let\u2019s break it down.<\/p>\n<table>\n<thead>\n<tr>\n<th colspan=\"3\">\n<p style=\"font-size: 17px; font-family: 'open sans'; text-align: center;\"><b>Key Concepts Of A Digital Signature<\/b><\/p>\n<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td>\n<p style=\"text-align: justify; font-size: 17px; font-family: 'open sans';\"><b>Key Concept<\/b><\/p>\n<\/td>\n<td>\n<p style=\"text-align: justify; font-size: 17px; font-family: 'open sans';\"><b>What It Means<\/b><\/p>\n<\/td>\n<td>\n<p style=\"text-align: justify; font-size: 17px; font-family: 'open sans';\"><b>Why CXOs Should Care<\/b><\/p>\n<\/td>\n<\/tr>\n<tr>\n<td>\n<p style=\"text-align: justify; font-size: 17px; font-family: 'open sans';\">Public Key Infrastructure (PKI)<\/p>\n<\/td>\n<td>\n<p style=\"text-align: justify; font-size: 17px; font-family: 'open sans';\">A framework of secure technologies that manages keys and certificates<\/p>\n<\/td>\n<td>\n<p style=\"text-align: justify; font-size: 17px; font-family: 'open sans';\">Ensures that every digital signature is tied to a verified identity<\/p>\n<\/td>\n<\/tr>\n<tr>\n<td>\n<p style=\"text-align: justify; font-size: 17px; font-family: 'open sans';\">rivate &amp; Public Keys<\/p>\n<\/td>\n<td>\n<p style=\"text-align: justify; font-size: 17px; font-family: 'open sans';\">Two mathematically linked keys \u2013 one stays secret (private), the other is shared (public)<\/p>\n<\/td>\n<td>\n<p style=\"text-align: justify; font-size: 17px; font-family: 'open sans';\">sed to lock and unlock the signature; ensures signatures can\u2019t be forged<\/p>\n<\/td>\n<\/tr>\n<tr>\n<td>\n<p style=\"text-align: justify; font-size: 17px; font-family: 'open sans';\">Digital Certificate<\/p>\n<\/td>\n<td>\n<p style=\"text-align: justify; font-size: 17px; font-family: 'open sans';\">Issued by a government-authorized Certifying Authority (CA) like eMudhra or Capricorn<\/p>\n<\/td>\n<td>\n<p style=\"text-align: justify; font-size: 17px; font-family: 'open sans';\">Confirms that the signer is who they say they are \u2013 crucial for audit and legal trust<\/p>\n<\/td>\n<\/tr>\n<tr>\n<td>\n<p style=\"text-align: justify; font-size: 17px; font-family: 'open sans';\">Hashing<\/p>\n<\/td>\n<td>\n<p style=\"text-align: justify; font-size: 17px; font-family: 'open sans';\">Converts your document into a unique fingerprint (hash value)<\/p>\n<\/td>\n<td>\n<p style=\"text-align: justify; font-size: 17px; font-family: 'open sans';\">Even a 1-character change breaks the hash, making tampering detectable<\/p>\n<\/td>\n<\/tr>\n<tr>\n<td>\n<p style=\"text-align: justify; font-size: 17px; font-family: 'open sans';\">Encryption<\/p>\n<\/td>\n<td>\n<p style=\"text-align: justify; font-size: 17px; font-family: 'open sans';\">The hash is encrypted using the signer\u2019s private key<\/p>\n<\/td>\n<td>\n<p style=\"text-align: justify; font-size: 17px; font-family: 'open sans';\">This makes the signature verifiable, secure, and non-repudiable (i.e., can\u2019t be denied later)<\/p>\n<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<h3><span style=\"color: #2c5363;\"><b>The 5-Step Digital Signature Process<\/b><\/span><\/h3>\n<p style=\"text-align: justify; font-size: 17px; font-family: 'open sans';\">How Secure, Legally Binding Digital Signatures Work, Step-by-Step:<\/p>\n<table>\n<thead>\n<tr>\n<th>\n<p style=\"text-align: justify; font-size: 17px; font-family: 'open sans';\"><b>Digital Signature Process Flow<\/b><\/p>\n<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td>\n<ul>\n<li style=\"text-align: justify; font-size: 17px; font-family: 'open sans';\"><b>Document Finalized<\/b><\/li>\n<\/ul>\n<p><span style=\"font-weight: 400;\">The contract is created and reviewed, ready for signing.<\/span><\/p>\n<ul>\n<li style=\"text-align: justify; font-size: 17px; font-family: 'open sans';\"><b>Signer Applies Digital Signature<\/b><\/li>\n<\/ul>\n<p style=\"text-align: justify; font-size: 17px; font-family: 'open sans';\">Signer\u2019s private key encrypts a unique hash (fingerprint) of the document. This forms the digital signature.<\/p>\n<ul>\n<li style=\"text-align: justify; font-size: 17px; font-family: 'open sans';\"><b>Certificate Attached<\/b><\/li>\n<\/ul>\n<p style=\"text-align: justify; font-size: 17px; font-family: 'open sans';\">The signer\u2019s Digital Signature Certificate (DSC) is attached to prove their identity.<\/p>\n<ul>\n<li style=\"text-align: justify; font-size: 17px; font-family: 'open sans';\"><b>Receiver Verifies Using Public Key<\/b><\/li>\n<\/ul>\n<p style=\"text-align: justify; font-size: 17px; font-family: 'open sans';\">The recipient system uses the public key to decrypt the hash and checks it against the document.<\/p>\n<ul>\n<li style=\"text-align: justify; font-size: 17px; font-family: 'open sans';\"><b>Authenticity Confirmed<\/b><\/li>\n<\/ul>\n<p style=\"text-align: justify; font-size: 17px; font-family: 'open sans';\">If the hashes match, the document is proven to be authentic, unaltered, and legally signed.<\/p>\n<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<h4><span style=\"color: #2c5363;\"><b>Step 1: Document Finalized<\/b><\/span><\/h4>\n<p style=\"text-align: justify; font-size: 17px; font-family: 'open sans';\">Get the contract ready to sign.<\/p>\n<p style=\"text-align: justify; font-size: 17px; font-family: 'open sans';\">Before signing begins, the contract or agreement is:<\/p>\n<ul>\n<li style=\"text-align: justify; font-size: 17px; font-family: 'open sans';\">Drafted, reviewed, and finalized by all stakeholders<\/li>\n<li style=\"text-align: justify; font-size: 17px; font-family: 'open sans';\">Locked in its final version to ensure no further edits post-signing<\/li>\n<\/ul>\n<table>\n<tbody>\n<tr>\n<td>\n<p style=\"text-align: justify; font-size: 17px; font-family: 'open sans';\"><b><i>At this stage, any changes made after signing would invalidate the signature due to a mismatch during verification.<\/i><\/b><\/p>\n<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<h4><span style=\"color: #2c5363;\"><b>Step 2: Signer Applies Digital Signature<\/b><\/span><\/h4>\n<p style=\"text-align: justify; font-size: 17px; font-family: 'open sans';\">The private key creates a unique fingerprint for this version.<\/p>\n<p style=\"text-align: justify; font-size: 17px; font-family: 'open sans';\">Here\u2019s where the digital magic begins:<\/p>\n<ul>\n<li style=\"list-style-type: none;\">\n<ul>\n<li style=\"text-align: justify; font-size: 17px; font-family: 'open sans';\">A unique hash (think of it as a digital fingerprint) of the document is generated using a cryptographic function.<\/li>\n<li style=\"text-align: justify; font-size: 17px; font-family: 'open sans';\">This hash is then encrypted using the signer\u2019s private key, which is known only to them.<\/li>\n<\/ul>\n<\/li>\n<li style=\"text-align: justify; font-size: 17px; font-family: 'open sans';\"><b>The result<\/b><span style=\"font-weight: 400;\">: a digital signature that locks the signer\u2019s identity and the document content at the time of signing.<\/span><\/li>\n<\/ul>\n<table>\n<tbody>\n<tr>\n<td>\n<p style=\"text-align: justify; font-size: 17px; font-family: 'open sans';\"><b><i>Even a one-character change in the document alters the hash, making tampering easily detectable.<\/i><\/b><\/p>\n<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<h4><span style=\"color: #2c5363;\"><b>Step 3: Certificate Attached<\/b><\/span><\/h4>\n<p style=\"text-align: justify; font-size: 17px; font-family: 'open sans';\">Identity proof is baked into the signature.<\/p>\n<p style=\"text-align: justify; font-size: 17px; font-family: 'open sans';\">A Digital Signature Certificate (DSC) is now attached:<\/p>\n<ul>\n<li style=\"text-align: justify; font-size: 17px; font-family: 'open sans';\">Issued by a licensed Certifying Authority (CA) such as eMudhra.<\/li>\n<li style=\"text-align: justify; font-size: 17px; font-family: 'open sans';\">Verifies the signer\u2019s identity, organization, and authorization.<\/li>\n<li style=\"text-align: justify; font-size: 17px; font-family: 'open sans';\">Embedded directly into the signed document.<\/li>\n<\/ul>\n<table>\n<tbody>\n<tr>\n<td>\n<p style=\"text-align: justify; font-size: 17px; font-family: 'open sans';\"><b><i>This certificate confirms the signer&#8217;s legal validity under the Indian IT Act, 2000, ensuring the signature is enforceable in court or by regulators.<\/i><\/b><\/p>\n<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<h4><span style=\"color: #2c5363;\"><b>Step 4: Receiver Verifies Using Public Key<\/b><\/span><\/h4>\n<p style=\"text-align: justify; font-size: 17px; font-family: 'open sans';\">The public key checks whether the document is untouched.<\/p>\n<p style=\"text-align: justify; font-size: 17px; font-family: 'open sans';\">When someone opens the signed document (e.g., a partner, auditor, or legal team):<\/p>\n<ul>\n<li style=\"text-align: justify; font-size: 17px; font-family: 'open sans';\">The system uses the signer\u2019s public key to decrypt the signature and retrieve the original hash.<\/li>\n<li style=\"text-align: justify; font-size: 17px; font-family: 'open sans';\">It then recalculates the hash from the received document and compares it with the original hash.<\/li>\n<\/ul>\n<p style=\"text-align: justify; font-size: 17px; font-family: 'open sans';\">If the hashes match:<\/p>\n<p style=\"text-align: justify; font-size: 17px; font-family: 'open sans';\">\u2705 Document is verified as unaltered.<\/p>\n<p style=\"text-align: justify; font-size: 17px; font-family: 'open sans';\">\u2705 Signature is confirmed as genuine and secure.<\/p>\n<table>\n<tbody>\n<tr>\n<td>\n<p style=\"text-align: justify; font-size: 17px; font-family: 'open sans';\"><b><i>If not, it triggers an alert \u2014 the document has been tampered with or corrupted.<\/i><\/b><\/p>\n<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<h4><span style=\"color: #2c5363;\"><b>Step 5: Authenticity Confirmed<\/b><\/span><\/h4>\n<p style=\"text-align: justify; font-size: 17px; font-family: 'open sans';\">Now it\u2019s tamper-proof, time-stamped, and legally binding.<\/p>\n<p style=\"text-align: justify; font-size: 17px; font-family: 'open sans';\">With matching hashes and a verified digital certificate:<\/p>\n<ul>\n<li style=\"text-align: justify; font-size: 17px; font-family: 'open sans';\">document is marked as authentic, unmodified, and legally signed.<\/li>\n<li style=\"text-align: justify; font-size: 17px; font-family: 'open sans';\">Full signing details (timestamp, signer\u2019s name, IP address, location, etc.) are recorded in the metadata.<\/li>\n<li style=\"text-align: justify; font-size: 17px; font-family: 'open sans';\">The signed version becomes enforceable in legal and regulatory processes.<\/li>\n<\/ul>\n<table>\n<tbody>\n<tr>\n<td>\n<p style=\"text-align: justify; font-size: 17px; font-family: 'open sans';\"><b><i>This fosters enterprise trust, streamlines audits, and ensures contract integrity across jurisdictions.<\/i><\/b><\/p>\n<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<h3><span style=\"color: #2c5363;\"><b>Why This Matters For CXOs<\/b><\/span><\/h3>\n<table>\n<tbody>\n<tr>\n<td>\n<p style=\"text-align: justify; font-size: 17px; font-family: 'open sans';\">Sign digitally from anywhere, <b>saving 22,000 hours annually<\/b><\/p>\n<\/td>\n<td>\n<p style=\"text-align: justify; font-size: 17px; font-family: 'open sans';\"><b>100% Compliant<\/b> with the IT Act, SEBI, RBI, and global standards like eIDAS<\/p>\n<\/td>\n<td>\n<p style=\"text-align: justify; font-size: 17px; font-family: 'open sans';\"><b>100% traceable<\/b>, with full metadata \u2013\u00a0 signer\u2019s identity, location, timestamp<\/p>\n<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p style=\"text-align: justify; font-size: 17px; font-family: 'open sans';\">Digital signatures are strategic enablers that enable you to move quickly without compromising trust or compliance.\u00a0 As a CXO, it\u2019s your responsibility to choose an effective digital signature platform to speed up paperwork and protect your company\u2019s future.<\/p>\n<h2><span style=\"color: #2c5363;\"><b>Digital Signature in India: How It Works Under the IT Act<\/b><\/span><\/h2>\n<p style=\"text-align: justify; font-size: 17px; font-family: 'open sans';\">For Indian enterprises going digital, understanding how digital signatures work legally isn\u2019t just helpful\u2014it\u2019s mission-critical.<\/p>\n<p style=\"text-align: justify; font-size: 17px; font-family: 'open sans';\">Let\u2019s break down what you need to know as a CXO responsible for compliance, security, and speed.<\/p>\n<h3><span style=\"color: #2c5363;\"><b>First, the Legal Backbone: Indian IT Act &amp; Digital Signatures<\/b><\/span><\/h3>\n<p style=\"text-align: justify; font-size: 17px; font-family: 'open sans';\">The Information Technology Act, 2000, governs Digital signatures. It gives electronic signatures the exact legal equivalence as handwritten ones, provided they meet specific technical and authentication standards.<\/p>\n<table>\n<thead>\n<tr>\n<th>\n<p style=\"text-align: justify; font-size: 17px; font-family: 'open sans';\"><b>Under Section 3 of the IT Act<\/b><\/p>\n<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td>\n<p style=\"text-align: justify; font-size: 17px; font-family: 'open sans';\">\u2705 Only digital signatures created using asymmetric cryptography and hash functions are recognized as legally valid.<\/p>\n<p style=\"text-align: justify; font-size: 17px; font-family: 'open sans';\">\u2705 These signatures must be issued by a government-approved Certifying Authority (CA).<\/p>\n<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p style=\"text-align: justify; font-size: 17px; font-family: 'open sans';\">In simpler terms?\u00a0 If your contract is signed using a DSC issued by a licensed CA, such as eMudhra or NSDL, it\u2019s as enforceable as a contract signed on inked paper.<\/p>\n<h3><span style=\"color: #2c5363;\"><b>Aadhaar eSign: Fast, Scalable &amp; Legally Valid<\/b><\/span><\/h3>\n<p style=\"text-align: justify; font-size: 17px; font-family: 'open sans';\">Aadhaar-based eSign is one of India\u2019s most powerful innovations in digital transformation.<\/p>\n<table>\n<thead>\n<tr>\n<th>\n<p style=\"text-align: justify; font-size: 17px; font-family: 'open sans';\"><b>How Aadhaar eSign Works\u00a0<\/b><\/p>\n<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td>\n<p style=\"text-align: justify; font-size: 17px; font-family: 'open sans';\">\u2705The signer authenticates their identity using OTP or biometric via their Aadhaar number.<\/p>\n<p style=\"text-align: justify; font-size: 17px; font-family: 'open sans';\">\u2705The system accesses an Aadhaar XML file \u2013 a digitally signed, tamper-proof identity snapshot generated by UIDAI.<\/p>\n<p style=\"text-align: justify; font-size: 17px; font-family: 'open sans';\">\u2705A temporary, session-based <a href=\"https:\/\/melento.ai\/en-in\/blog\/importance-of-digital-signature-certificates\">Digital Signature Certificate<\/a> (DSC) is issued to the signer, which is used to digitally sign the document.<\/p>\n<p style=\"text-align: justify; font-size: 17px; font-family: 'open sans';\">\u2705You can complete the entire process in under a few minutes.<\/p>\n<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p style=\"text-align: justify; font-size: 17px; font-family: 'open sans';\">Every eSign carries the signer\u2019s full identity trace, a timestamped record, and a legal backing under Section 3A of the IT Act.<\/p>\n<table>\n<tbody>\n<tr>\n<td>\n<p style=\"text-align: justify; font-size: 17px; font-family: 'open sans';\"><b>Impact<\/b>: Aadhaar eSign is ideal for high-volume use cases, including onboarding, loan agreements, eMandates, and internal HR documents.<\/p>\n<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<h3><span style=\"color: #2c5363;\"><b>Class 3 DSC: Enterprise-Grade Compliance<\/b><\/span><\/h3>\n<p style=\"text-align: justify; font-size: 17px; font-family: 'open sans';\">When it comes to high-stakes business contracts or regulatory filings, most enterprises opt for Class 3 Digital Signature Certificates (DSCs).<\/p>\n<p style=\"text-align: justify; font-size: 17px; font-family: 'open sans';\"><b>Why they matter:<\/b><\/p>\n<p style=\"text-align: justify; font-size: 17px; font-family: 'open sans';\">\u2705 Issued by CAs like Capricorn, eMudhra, NSDL<\/p>\n<p style=\"text-align: justify; font-size: 17px; font-family: 'open sans';\">\u2705 <span style=\"font-weight: 400;\">PKI-backed digital signature<\/span><span style=\"font-weight: 400;\"> \u2013 includes signer\u2019s private key securely stored in a USB token.<\/span><\/p>\n<p style=\"text-align: justify; font-size: 17px; font-family: 'open sans';\">\u2705 Ideal for vendor contracts, government tenders, SEBI\/MCA filings, IPO documentation, and legal submissions.<\/p>\n<table>\n<thead>\n<tr>\n<th>\n<p style=\"text-align: justify; font-size: 17px; font-family: 'open sans';\"><b>Class 3 DSCs Are Non-Repudiable, Meaning?<\/b><\/p>\n<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td>\n<ul>\n<li style=\"text-align: justify; font-size: 17px; font-family: 'open sans';\">The signer cannot deny the signature<\/li>\n<li style=\"text-align: justify; font-size: 17px; font-family: 'open sans';\">Every action is tracked with a digital audit trail<\/li>\n<li style=\"text-align: justify; font-size: 17px; font-family: 'open sans';\">In short? These are your go-to for legally bulletproof contracts.<\/li>\n<\/ul>\n<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<h3><span style=\"color: #2c5363;\"><b>Indian Evidence Act: Can You Use Digital Signatures in Court?<\/b><\/span><\/h3>\n<p style=\"text-align: justify; font-size: 17px; font-family: 'open sans';\">Yes, Digital Signatures are admissible in the courts.<\/p>\n<table>\n<thead>\n<tr>\n<th>\n<p style=\"text-align: justify; font-size: 17px; font-family: 'open sans';\"><b>Under Section 65B of the Indian Evidence Act, digitally signed documents:<\/b><\/p>\n<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td>\n<ul>\n<li style=\"text-align: justify; font-size: 17px; font-family: 'open sans';\">Are primary evidence<\/li>\n<li style=\"text-align: justify; font-size: 17px; font-family: 'open sans';\">Do not require physical copies.<\/li>\n<li style=\"text-align: justify; font-size: 17px; font-family: 'open sans';\">Are admissible in court as long as the digital certificate and audit trail are intact<\/li>\n<\/ul>\n<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p style=\"text-align: justify; font-size: 17px; font-family: 'open sans';\">That\u2019s why digitally signed documents are now standard in loan recovery cases, commercial disputes, and contract enforcement.<\/p>\n<table>\n<tbody>\n<tr>\n<td>\n<p style=\"text-align: justify; font-size: 17px; font-family: 'open sans';\"><b>Need help with IT Act- Valid, Verified &amp; Court-Ready eSigning workflows?: <\/b>Speak to a Melento eSign Expert<\/p>\n<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<h2><span style=\"color: #2c5363;\"><b>The World Is Going Paperless: Are You In?<\/b><\/span><\/h2>\n<p style=\"text-align: justify; font-size: 17px; font-family: 'open sans';\">Digital signatures are no longer a \u2018nice-to-have.\u2019\u00a0 They\u2019re now a compliance backbone and growth catalyst \u2013\u00a0 globally and in India.<\/p>\n<p style=\"text-align: justify; font-size: 17px; font-family: 'open sans';\">Let\u2019s look at the numbers that prove it.<\/p>\n<table>\n<thead>\n<tr>\n<th>\n<p style=\"text-align: justify; font-size: 17px; font-family: 'open sans';\"><b>Global Adoption: The Paperless Wave Is Here<\/b><\/p>\n<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td>\n<ul>\n<li style=\"text-align: justify; font-size: 17px; font-family: 'open sans';\">According to <a href=\"https:\/\/www.alliedmarketresearch.com\/digital-signature-market\"><span style=\"font-weight: 400;\">Allied Market Research<\/span><\/a><span style=\"font-weight: 400;\">, the global digital signature market is projected to reach $61.9 billion by 2030.<\/span><\/li>\n<li style=\"text-align: justify; font-size: 17px; font-family: 'open sans';\">A 2021 research shows that, from legal contracts to HR documents, 53% of businesses now use digital signatures as part of their compliance and contracting workflows.<\/li>\n<li style=\"text-align: justify; font-size: 17px; font-family: 'open sans';\">With a digital signature, up to 80% of agreements are completed in under a day, and 44% in under 15 minutes, naturally driving ROI.<\/li>\n<\/ul>\n<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p style=\"text-align: justify; font-size: 17px; font-family: 'open sans';\"><b>Takeaway<\/b><span style=\"font-weight: 400;\">: Enterprises worldwide are choosing digital signatures not just for compliance, but for speed, cost control, and trust.<\/span><\/p>\n<table>\n<thead>\n<tr>\n<th>\n<p style=\"text-align: justify; font-size: 17px; font-family: 'open sans';\"><b>India&#8217;s Digital Signature Boom<\/b><\/p>\n<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td>\n<p style=\"text-align: justify; font-size: 17px; font-family: 'open sans';\"><a href=\"https:\/\/www.globenewswire.com\/news-release\/2024\/11\/13\/2980476\/28124\/en\/India-s-Digital-Signature-Solution-Market-Set-to-Surge-to-USD-5-5-Billion-by-2030-Driven-by-Government-Endorsement-and-Digital-Engagement.html\"><span style=\"font-weight: 400;\">India\u2019s digital signature market<\/span><\/a><span style=\"font-weight: 400;\"> is projected to reach USD 5.5 billion by 2030.<\/span><\/p>\n<ul>\n<li style=\"text-align: justify; font-size: 17px; font-family: 'open sans';\">Global BFSIs cite three key benefits:<\/li>\n<li style=\"text-align: justify; font-size: 17px; font-family: 'open sans';\">68% reduction in turnaround time<\/li>\n<li style=\"text-align: justify; font-size: 17px; font-family: 'open sans';\">54% drop in operational costs<\/li>\n<li style=\"text-align: justify; font-size: 17px; font-family: 'open sans';\">100% audit-ready documentation<\/li>\n<\/ul>\n<p style=\"text-align: justify; font-size: 17px; font-family: 'open sans';\">Government Push: SEBI, MCA, RBI, and IRDAI all accept eSigned documents for filings.<\/p>\n<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p style=\"text-align: justify; font-size: 17px; font-family: 'open sans';\">Now, as a CXO, it\u2019s your responsibility to choose a compliant digital signature tool for aligning your business with the future of speed, compliance, and efficiency.<\/p>\n<h2><span style=\"color: #2c5363;\"><b>CXO Checklist: What to Look for in a Digital Signature Solution<\/b><\/span><\/h2>\n<p style=\"text-align: justify; font-size: 17px; font-family: 'open sans';\">Make sure your digital signature platform checks all these mission-critical boxes:<\/p>\n<table>\n<tbody>\n<tr>\n<td>\n<p style=\"text-align: justify; font-size: 17px; font-family: 'open sans';\"><b>1. Legal &amp; Regulatory Compliance<\/b><b><\/b><\/p>\n<p style=\"text-align: justify; font-size: 17px; font-family: 'open sans';\">\u2611\ufe0f IT Act, 2000 compliant (India)<\/p>\n<p style=\"text-align: justify; font-size: 17px; font-family: 'open sans';\"><span style=\"font-weight: 400;\">\u2611\ufe0f eIDAS, ESIGN, UETA compliance (Global)\u00a0 <\/span><\/p>\n<p style=\"text-align: justify; font-size: 17px; font-family: 'open sans';\"><span style=\"font-weight: 400;\">\u2611\ufe0f Valid under the Indian Evidence Act<\/span><\/p>\n<\/td>\n<\/tr>\n<tr>\n<td>\n<p style=\"text-align: justify; font-size: 17px; font-family: 'open sans';\"><b>2. Certifying Authority Integration<\/b><b><\/b><\/p>\n<p style=\"text-align: justify; font-size: 17px; font-family: 'open sans';\">\u2611\ufe0f Seamless integration with licensed CAs<\/p>\n<p style=\"text-align: justify; font-size: 17px; font-family: 'open sans';\"><span style=\"font-weight: 400;\">\u2611\ufe0f Supports both Aadhaar eSign &amp; Class 3 DSC<\/span><\/p>\n<\/td>\n<\/tr>\n<tr>\n<td>\n<p style=\"text-align: justify; font-size: 17px; font-family: 'open sans';\"><b>3. Real-Time Authentication<\/b><\/p>\n<p style=\"text-align: justify; font-size: 17px; font-family: 'open sans';\">\u2611\ufe0f Aadhaar OTP or biometric verification<\/p>\n<p style=\"text-align: justify; font-size: 17px; font-family: 'open sans';\">\u2611\ufe0f DSC token-based identity verification<\/p>\n<p style=\"text-align: justify; font-size: 17px; font-family: 'open sans';\">\u2611\ufe0f Timestamp &amp; audit trail for every action<\/p>\n<\/td>\n<\/tr>\n<tr>\n<td>\n<p style=\"text-align: justify; font-size: 17px; font-family: 'open sans';\"><b> 4. Encryption &amp; Data Security<\/b><b><\/b><\/p>\n<p style=\"text-align: justify; font-size: 17px; font-family: 'open sans';\">\u2611\ufe0f End-to-end document encryption<\/p>\n<p style=\"text-align: justify; font-size: 17px; font-family: 'open sans';\"><span style=\"font-weight: 400;\">\u2611\ufe0f PKI-backed signing with private key<\/span><\/p>\n<p style=\"text-align: justify; font-size: 17px; font-family: 'open sans';\"><span style=\"font-weight: 400;\">\u2611\ufe0f Tamper-proof digital hash &amp; certificate<\/span><\/p>\n<\/td>\n<\/tr>\n<tr>\n<td>\n<p style=\"text-align: justify; font-size: 17px; font-family: 'open sans';\"><b>5. Scalability &amp; Enterprise Fit<\/b><\/p>\n<p style=\"text-align: justify; font-size: 17px; font-family: 'open sans';\">\u2611\ufe0f Usable across HR, Legal, Sales, Ops<\/p>\n<p style=\"text-align: justify; font-size: 17px; font-family: 'open sans';\">\u2611\ufe0f API-first architecture for fast integration<\/p>\n<p style=\"text-align: justify; font-size: 17px; font-family: 'open sans';\">\u2611\ufe0f <a href=\"https:\/\/melento.ai\/en-in\/blog\/group-signing-vs-bulk-signing\">Bulk signing<\/a>, multi-party workflows supported<\/p>\n<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p style=\"text-align: justify; font-size: 17px; font-family: 'open sans';\"><b>Pro Tip for CXOs<\/b><span style=\"font-weight: 400;\">: Opt for a future-proof solution like Melento, designed from the outset for compliance, speed, and scalability.<\/span><\/p>\n<h2><span style=\"color: #2c5363;\"><b>Why Melento is the Choice of 3000+ Leading Enterprises<\/b><\/span><\/h2>\n<p style=\"text-align: justify; font-size: 17px; font-family: 'open sans';\"><i>Because when speed meets compliance, magic happens.<\/i><\/p>\n<p style=\"text-align: justify; font-size: 17px; font-family: 'open sans';\">At the enterprise level, digital signatures aren\u2019t just about convenience; they\u2019re about governance, agility, and trust.\u00a0 That\u2019s where Melento stands out.<\/p>\n<ul>\n<li style=\"text-align: justify; font-size: 17px; font-family: 'open sans';\"><b>Aadhaar eSign + DSC, Built-In<\/b><\/li>\n<\/ul>\n<p style=\"text-align: justify; font-size: 17px; font-family: 'open sans';\">Whether you need a fast <a href=\"https:\/\/melento.ai\/en-in\/aadhaar-esign\">Aadhaar eSign<\/a> or a Class 3 DSC for critical contracts, Melento supports both natively. No toggling, no workarounds.<\/p>\n<ul>\n<li style=\"text-align: justify; font-size: 17px; font-family: 'open sans';\"><b>Digital Stamping, Seamlessly Integrated<\/b><\/li>\n<\/ul>\n<p style=\"text-align: justify; font-size: 17px; font-family: 'open sans';\">Save hours with built-in <a href=\"https:\/\/melento.ai\/en-in\/digital-stamp\">digital stamping<\/a> available in 25+ states.\u00a0 No more chasing stamp vendors or worrying about state-wise compliance gaps.<\/p>\n<ul>\n<li style=\"text-align: justify; font-size: 17px; font-family: 'open sans';\"><b>One-Click CLM + eSign Workflows<\/b><\/li>\n<\/ul>\n<p style=\"text-align: justify; font-size: 17px; font-family: 'open sans';\">Generate, review, approve, sign, and store \u2013 all in one automated flow. Melento unifies Contract Lifecycle Management with its robust <a href=\"https:\/\/melento.ai\/en-in\/clm\/\">CLM Software<\/a> and <a href=\"https:\/\/melento.ai\/en-in\/esign-workflow\">eSign<\/a>, enabling deals to close 1.6 times faster.<\/p>\n<ul>\n<li style=\"text-align: justify; font-size: 17px; font-family: 'open sans';\"><b>Trusted by India\u2019s Biggest Businesses<\/b><\/li>\n<\/ul>\n<p style=\"text-align: justify; font-size: 17px; font-family: 'open sans';\">3,000+ leaders trust Melento to power over 50 million compliant documents \u2013 securely and at scale.<\/p>\n<table>\n<thead>\n<tr>\n<th colspan=\"3\">\n<p style=\"font-size: 17px; font-family: 'open sans'; text-align: center;\"><b>ROI You Can\u2019t Ignore<\/b><\/p>\n<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td>\n<p style=\"text-align: justify; font-size: 17px; font-family: 'open sans';\"><b>Factor<\/b><\/p>\n<\/td>\n<td>\n<p style=\"text-align: justify; font-size: 17px; font-family: 'open sans';\"><b>Before Digital Signatures<\/b><\/p>\n<\/td>\n<td>\n<p style=\"text-align: justify; font-size: 17px; font-family: 'open sans';\"><b>With Melento<\/b><\/p>\n<\/td>\n<\/tr>\n<tr>\n<td>\n<p style=\"text-align: justify; font-size: 17px; font-family: 'open sans';\"><b>Time to Close (avg)<\/b><\/p>\n<\/td>\n<td>\n<p style=\"text-align: justify; font-size: 17px; font-family: 'open sans';\">2.5 days<\/p>\n<\/td>\n<td>\n<p style=\"text-align: justify; font-size: 17px; font-family: 'open sans';\">1.6x Faster<\/p>\n<\/td>\n<\/tr>\n<tr>\n<td>\n<p style=\"text-align: justify; font-size: 17px; font-family: 'open sans';\"><b>Cost per Document<\/b><\/p>\n<\/td>\n<td>\u20b9150+ (paper, courier, handling)<\/td>\n<td>\n<p style=\"text-align: justify; font-size: 17px; font-family: 'open sans';\">Super Affordable with Free Individual Signing<\/p>\n<\/td>\n<\/tr>\n<tr>\n<td>\n<p style=\"text-align: justify; font-size: 17px; font-family: 'open sans';\"><b>Compliance Risk<\/b><\/p>\n<\/td>\n<td>\n<p style=\"text-align: justify; font-size: 17px; font-family: 'open sans';\">High<\/p>\n<\/td>\n<td>\n<p style=\"text-align: justify; font-size: 17px; font-family: 'open sans';\">Near Zero<\/p>\n<\/td>\n<\/tr>\n<tr>\n<td>\n<p style=\"text-align: justify; font-size: 17px; font-family: 'open sans';\"><b>CX Experience<\/b><\/p>\n<\/td>\n<td>\n<p style=\"text-align: justify; font-size: 17px; font-family: 'open sans';\">Manual<\/p>\n<\/td>\n<td>\n<p style=\"text-align: justify; font-size: 17px; font-family: 'open sans';\">Seamless<\/p>\n<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p>\u2705 <b>54% Cost Savings <\/b>\u2705 <b>68% TAT Reduction <\/b>\u2705 <b>100% Compliant<\/b><\/p>\n<p style=\"text-align: justify; font-size: 17px; font-family: 'open sans';\">As a CXO, you\u2019re steering your organization into a digital-first future. But trust, speed, and compliance don\u2019t scale with PDFs and manual signing. They scale with Melento.<\/p>\n<p style=\"text-align: center;\"><button class=\"navigate-to-form\"><strong>Close Deals 1.6x Faster with Zero Compliance Risk<\/strong><\/button><\/p>\n","protected":false},"excerpt":{"rendered":"<p>Imagine your team just closed a \u20b9200 crore strategic deal. The paperwork? Wrapped up in under 10 minutes, with signatories sitting in three different time zones. No courier delays. No scanning errors. No compliance doubts. That\u2019s the invisible magic of digital signatures, and it\u2019s transforming how modern businesses operate! Yet, many CXOs still ask: How [&hellip;]<\/p>\n","protected":false},"author":3,"featured_media":12370,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"page_templates\/blog-new-3.php","format":"standard","meta":{"_acf_changed":false,"inline_featured_image":false,"footnotes":""},"categories":[16],"tags":[46,52,60,314,315,316,555,598,599,600,643,724,725,824,1091,1236,1316,1898,2079],"class_list":["post-5188","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-esign","tag-aadhaar-ekyc","tag-aadhaar-esign","tag-aadhaar-esignature","tag-class-1","tag-class-2-signature","tag-class-3-signature","tag-digital-certificates-and-classes","tag-digital-signature","tag-digital-signature-algorithm","tag-digital-signature-certificate","tag-digitally-sign","tag-dsa","tag-dsc","tag-ekyc","tag-esignature","tag-hash-function","tag-how-to-sign-a-document","tag-pki","tag-signdesk-esign"],"acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v26.1.1 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>How Digital Signatures Work? Guide 101<\/title>\n<meta name=\"description\" content=\"Learn how digital signatures work, their security benefits, and how they verify identity and protect data in online transactions.\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/melento.ai\/en-in\/blog\/how-digital-signature-works\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"How Digital Signatures Work? 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