Public key cryptography pdf

1. What is public key cryptography explain?
2. What are the 4 principles of cryptography?
3. How many keys are public key cryptography?
4. What are the different types of public keys?

What is public key cryptography explain?

Public key cryptography involves a pair of keys known as a public key and a private key (a public key pair), which are associated with an entity that needs to authenticate its identity electronically or to sign or encrypt data. Each public key is published and the corresponding private key is kept secret.

What are the 4 principles of cryptography?

Data Confidentiality, Data Integrity, Authentication and Non-repudiation are core principles of modern-day cryptography.

How many keys are public key cryptography?

Public key encryption uses two different keys. One key is used to encrypt the information and the other is used to decrypt the information. Sometimes this is referred to as asymmetric encryption because two keys are required to make the system and/or process work securely.

What are the different types of public keys?

There are three classes of these algorithms commonly used for asymmetric encryption: RSA, DSA, and elliptic curve based algorithms.