Digital Signatures and Certificates

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.
Digital Signature Certificates (DSC) is the electronic format of physical or paper certificate like a driving License, passport etc. Certificates serve as proof of identity of an individual for a certain purpose; for example, a Passport identifies someone as a citizen of that country; who can legally travel to any country. Likewise, a Digital Signature Certificate can be presented electronically to prove your identity, to access information or services on the Internet or to sign certain documents digitally.
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 Signature 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.
Legally valid Digital Signature Certificates are issued only through a Controller of Certifying Authorities (CCA), Govt. of India,licensed Certifying Authorities (CA).
You can use Digital Signature Certificates for the following:
  1. For sending and receiving digitally signed and encrypted emails.
  2. For carrying out secure web-based transactions, or to identify other participants of web-based transactions.
  3. In eTendering, eProcurement, MCA [for Registrar of Companies efiling], Income Tax [for efiling income tax returns] Applications and also in many other applications.
  4. For signing documents like MSWord, MSExcel and PDFs.
  5. Plays a pivotal role in creating a paperless office.

Digital Signature Usage

Digital signature certificates in e-tendering systems are allowed, but based on the service provider.

Yes, digital signature certificates can be employed in wireless networks.

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