What is public-key and private-key encryption?

Subject E-Commerce
NU Year Set: 3.(d) Marks: 3 Year: 2013

Public-key encryption is a cryptographic system that uses two keys -- a public key known to everyone and a private or secret key known only to the recipient of the message.

A private key is a tiny bit of code that is paired with a public key to set off algorithms for text encryption and decryption. It is created as part of public key cryptography during asymmetric-key encryption and used to decrypt and transform a message to a readable format. Public and private keys are paired for secure communication, such as email.

A private key is also known as a secret key.

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