DSC - Digital signature Certificate
Computer generated digital key - which contains the complete identity of the owner of the certificate.
Issued by Licensed CA - Certification Authority
List of CAs available - www.cca.gov.in
Examples of CAs - NIC, IDRBT, TCS, MTNL etc
Validity - 1 or 2 years
Purpose: Used to digitally sign an electronic document for calling tenders through e tendering.
Issued to Official by name (not Designation)
Purchased as Consumable (not T & P)
Device Driver required to use DSC
Not to be handed over to any one on superannuation of the official in whose name it was purchased.
Get it revoked, if not required further.
Safe custody of DSC - Responsibility of Official in whose name it was purchased.
DSC - Classes
Advantages:
1. Helps authentication - Identity is established by the CA database
2. Helps non repudiation of Document
DEC - Digital Encryption Certificate
Purchased in the name of the Official of the unit.
Functions similar to DSC
Purpose: To encrypt the Document
Every Railway Dept should have one DEC
It is not the property of the official in whose name it was purchased.
