Encryption is a method that we use to transform a message into an unreadable text. This encrypted script can be decoded by the recipient after using the required key provided by the sender. Public Key Infrastructure works on a cryptographic algorithm based on mathematical problems to ensure the safety and confidentiality of the information being shared. PKI uses an asymmetric form of encryption to code message. Public Key Encryption is a method of encrypting data with two different keys that are Private key and Public key. The Public key is available for anyone to use. The user can encrypt the data without any hurdle. The data encrypted with the public key can only be decrypted with the private key and the data encrypted with the private key can only be decrypted with the private key. This is also known as asymmetric encryption and is widely used to serve SSL which makes HTTPS possible. Moreover, it is virtually impossible to deduce the private key of any user even if you are aware of the public key.

How does Encryption help?

Keeping the security of the shared data a priority, encryption process offers below mentioned features

  • Confidentiality- Since the entire content is encrypted with an individual’s public key. This data can only be decrypted with the private key which ensures that only the intended recipient can decrypt the shared content.
  • Integrity- It makes it mandate for the users to use the exclusive public key, which is required to decrypt the data. If the original encrypted message and the decrypted message didn’t match after utilizing the keys, it may cause the entire decryption process to fail.