DIGITAL SIGNATURE
DIGITAL signatures are used to verify and identify the sender of a message. They
are basically used for authentication purposes. For example, if a sender has to send
confi dential data, the receiver may require confi dence that the message was not
modifi ed during transmission.
Though encryption plays an important role in data security, at times encrypted
messages can be altered using diff erent encryption algorithms. On the other hand, if
a message contains a digital signature, any alteration in the message, will thereafter
nullify the signature. This is a major advantage of using digital signatures
are basically used for authentication purposes. For example, if a sender has to send
confi dential data, the receiver may require confi dence that the message was not
modifi ed during transmission.
Though encryption plays an important role in data security, at times encrypted
messages can be altered using diff erent encryption algorithms. On the other hand, if
a message contains a digital signature, any alteration in the message, will thereafter
nullify the signature. This is a major advantage of using digital signatures
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