Explain use of Digital Signature.
Answers
The foremost efilling, etender and eprocurement websites where the use of Digital signature in required for login
MCA
Income Tax
Sales Tax
West Bengal State Rural Development Agency (WBSRDA)
BIHAR GOVERNMENT (PMGSY)
Metal Junctions
Hindustan Petroleum Corporation Limited (HPCL)
Indian Oil Corporation Ltd. (IOCL)
Oil India Limited (OIL)
Oil & Natural Gas Corporation (ONGC)
GAIL
MSTC Limited
Bharat Petroleum Corporation Limited (BPCL)
Directorate General of Supplies & Disposals (DGSND)
Indian Railway Catering and Tourism Corporation Limited (IRCTC)
Neyveli Lignite Corporation Limited
Government of Gujarat
Gujarat Narmada Valley Fertilizers Corporation Ltd. (GNFC Ltd.)
Government of Orissa (PMGSY)
Maharashtra Government
Karnataka Government (PMGSY)
Tamil Nadu Government (PMGSY)
Coal India Limited
Indian Railways (IREPS)
Water Resources Department
MP Govt.
Patent and trade marks registration.(The Controller General of Patents, Designs and Trade Marks) Accepts class 3 from Safe script or TCS or N code only.
NTPC.
Digital Signature is a process that guarantees that the contents of a message have not been altered in transit.
When you, the server, digitally sign a document, you add a one-way hash (encryption) of the message content using your public and private key pair.
Your client can still read it, but the process creates a "signature" that only the server's public key can decrypt. The client, using the server's public key, can then validate the sender as well as the integrity of message contents.
Whether it's an email, an online order or a watermarked photograph on eBay, if the transmission arrives but the digital signature does not match the public key in the digital certificate, then the client knows that the message has been altered.
Other Uses for Digital Signature
Sometimes you need proof that the document came from you and no one has tampered with it since you sent it. Digital Signature with your SSL Certificate fills the bill.
On the other hand, sometimes you need to prove that a document came from someone else and has not been altered along the way. In legal matters, for example, you may need to prove that a contract has not been altered since someone sent it as an email.
Because the computer tenaciously pairs the Digital Signature to one saved version of the document, it is nearly impossible to repudiate a digitally signed document.
Or, if you are a developer distributing software online, you may need to reassure your customers that your executables really are from you. Put a Code Signing Certificate in your toolkit.
Different document processing platforms support and allow the creation of different types of digital signatures.
Adobe supports - certified and approval digital signatures
Microsoft Word supports - visible and non-visible digital signatures