| S.No | Private Key | Public Key |
|---|---|---|
| 1. | Private key is faster than public key. | It is slower than private key. |
| 2. | In this, the same key (secret key) and algorithm is used to encrypt and decrypt the message. | In public key cryptography, two keys are used, one key is used for encryption and while the other is used for decryption. |
| 3. | In private key cryptography, the key is kept as a secret. | In public key cryptography, one of the two keys is kept as a secret. |
| 4. | Private key is Symmetrical because there is only one key that is called secret key. | Public key is Asymmetrical because there are two types of key: private and public key. |
| 5. | In this cryptography, sender and receiver need to share the same key. | In this cryptography, sender and receiver does not need to share the same key. |
| 6. | In this cryptography, the key is private. | In this cryptography, public key can be public and private key is private. |
Sources:
https://www.geeksforgeeks.org
