Digital Signature standard | Digital Signature Algorithm | RSA approach | DSS approach | Hindi Urdu
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In Asymmetric Encryption, two types of keys are used – Public key & Private key
Public key is shared to all
Private key is secret key
When message is Encrypted using Sender’s Private key then automatically process is called Digital Signature.
When there is trust issues between sender and receiver, something more than authentication is needed.
The most attractive solution to this problem is the Digital Signature.
The digital signature must have the following properties:
It must verify the author and date and time of the signature.
It must authenticate the contents at the time of the signature.
It must be verifiable by third parties, to resolve disputes.
Approaches of Digital Signature -
RSA approach
DSS / DSA approach