Public key cryptosystem is alternative to symmetric/shared key cryptosystem. In this system user contains two keys :
1. Public key that is available to anyone and it is used for encrypting message while sending the message to that user.
2. Private Key : that is used by user to decrypt the message sent to him by someone .
Advantage : Only n number of public and n number of private keys are required to communicate between "n" number of users.
Disadvanatge : The disadvantages of asymmetric cryptography include slow performance, high computational overhead, complex key management, large key sizes, and vulnerability to public key authenticity attacks such as Man-in-the-Middle attacks.
Public Key Cryptosystem / Asymmetric Cryptosystem
Zeeshan
February 26, 2026 • 1 min read
👁️ 2 views📅 2/26/2026
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