DIGITAL SIGNATURE?? Why I use?? Where from I got??

What is DIGITAL SIGNATURE? A digital signature is an electronic form of a signature that can be used to authenticate the identity of the sender of a message or the signer of a document, and also ensure that the original content of the message or document that has been sent is unchanged. Digital signatures are easily transportable and cannot be imitated by someone else. The ability to ensure that the original signed message arrived means that the sender cannot easily disclaim it later.A DSC is normally valid for 1 or 2 years, after which renewal is required. These certificates are accepted for IFFCO, Northern Railway, MCA 21, E-filing, E -tendering etc... Types of DIGITAL SIGNATURE There are basically 3 types of Digital Signature Certificates Class-1, Class-2 & Class-3 each having different level of security. Class 1 Certificate: Class 1 certificates shall be issued to individuals/private subscribers. These certificates will confirm that user's name (or alias) and E-mail address form an unambiguous subject within the Certifying Authorities database. Class 2 Certificate: These certificates will be issued for both business personnel and private individuals use. These certificates will confirm that the information in the application provided by the subscriber does not conflict with the information in well-recognized consumer databases. All the authorized signatories of company under MCA21 require Class-2 Digital Signature Certificate. Similarly any document filed by CA/CS/CWA & TAX PRACTIONERS under MCA21 require Class-2 Digital Signature Certificate. Class 3 Certificate: This certificate will be issued to individuals as well as organizations. As these are high assurance certificates, primarily intended for e-commerce applications, they shall be issued to individuals only on their personal (physical) appearance before the Certifying Authorities. Why do I need a Digital Signature Certificate? A Digital Signature Certificate authenticates your identity electronically. It also provides you with a high level of security for your online transactions by ensuring absolute privacy of the information exchanged using a digital certificate. You can use certificates to encrypt information such that only the intended recipient can read it. You can digitally sign information to assure the recipient that it has not been changed in transit, and also verify your identity as the sender of the message. Click here to get your Digital Signature Certificate

Where can I use Digital Signature Certificates? You can use Digital Signature Certificates for the following: For secure email and web-based transactions, or to identify other participants of web-based transactions. To prove ownership of a domain name and establish SSL/ TLS encrypted secured sessions between your website and the user for web based transactions. As a developer, for proving authorship of a code and retaining integrity of the distributed software programs. For signing web forms, e-tendering documents, filing income tax returns, to access membership-based websites automatically without entering a user name and password etc. What is the difference between a Digital Signature and a Digital Signature Certificate? A digital signature is an electronic method of signing an electronic document whereas a Digital Signature Certificate is a computer based record that Identifies the Certifying Authority issuing it. Has the name and other details that can identify the subscriber. Contains the subscriber's public key. Is digitally signed by the Certifying Authority issuing it. Is valid for either one year or two years.