Digital Signature (DSC)
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A digital signature is a mathematical technique used to validate the authenticity and integrity of a digital document, message or software. It’s the digital equivalent of a handwritten signature or stamped seal, but it offers far more inherent security. A digital signature is intended to solve the problem of tampering and impersonation in digital communications.
Digital signatures can provide evidence of origin, identity and status of electronic documents, transactions or digital messages. Signers can also use them to acknowledge informed consent. In many countries, including the U.S., digital signatures are considered legally binding in the same way as traditional handwritten document signatures.
Digital signatures are based on public key cryptography, also known as asymmetric cryptography. Using a public key algorithm — such as Rivest-Shamir-Adleman, or RSA — two keys are generated, creating a mathematically linked pair of keys: one private and one public.
Digital signatures work through public key cryptography’s two mutually authenticating cryptographic keys. For encryption and decryption, the person who creates the digital signature uses a private key to encrypt signature-related data. The only way to decrypt that data is with the signer’s public key.
- Digital signatures offer the following benefits:
- Security. Security capabilities are embedded in digital signatures to ensure a legal document isn’t altered and signatures are legitimate. Security features include asymmetric cryptography, personal identification numbers (PINs), checksums and cyclic redundancy checks (CRCs), as well as CA and trust service provider (TSP) validation.
- Timestamping. This provides the date and time of a digital signature and is useful when timing is critical, such as for stock trades, lottery ticket issuance and legal proceedings.
- Globally accepted and legally compliant. The public key infrastructure (PKI) standard ensures vendor-generated keys are made and stored securely. With digital signatures becoming an international standard, more countries are accepting them as legally binding.
- Time savings. Digital signatures simplify the time-consuming processes of physical document signing, storage and exchange, enabling businesses to quickly access and sign documents.
- Cost savings. Organizations can go paperless and save money previously spent on the physical resources, time, personnel and office space used to manage and transport documents.
- Positive environmental effects. Reducing paper use also cuts down on the physical waste generated by paper and the negative environmental impact of transporting paper documents.
- Traceability. Digital signatures create an audit trail that makes internal record-keeping easier for businesses. With everything recorded and stored digitally, there are fewer opportunities for a manual signee or record-keeper to make a mistake or misplace something.
Step 1: Enter applicant name, phone, email, and make payment.
Step 2: Receive automatic e-mail with link to open CA Portal (eMudhra or Capricorn and other).
Step 3: Create KYC ID / PIN or use existing KYC ID.
Step 4: Upload PAN Card, Proof of Address, and a passport size photo. For Class-3, additional documents must be uploaded.
Step 5: Record Video using phone or laptop. Read statement shown on screen.
Step 6: Certifying Authority will approve and issue Digital Signature Certificate (eMudhra or Capricorn and other).
Step 7: Download DSC and store on USB cryptographic token (HyperPKI HYP2003 or WatchData ProxKey Tokens and other).