What is master key in encryption?

What is the purpose of a master key?

Master key system is a system that allows two or more keys to open one lock. Master keys will be able to open multiple locks. The greater the difference between the master key and the change key, the more master wafers will be needed. The more master wafers, the more possible keys can open the lock.

What is master key in AES?

The AES master key always remains within the secure boundaries of the cryptographic coprocessors. Transport keys protect a key that is sent to another system, received from another system, or stored with data in a file. AES transport keys are variable-length keys up to 725 bytes in length.

What is the difference between a session key and a master key?

In cryptography, Master/Session is a key management scheme in which a pre-shared Key Encrypting Key (called the "Master" key) is used to encrypt a randomly generated and insecurely communicated Working Key (called the "Session" key). The Working Key is then used for encrypting the data to be exchanged.

What are the 3 types of encryption keys?

There are four basic type of encryption keys: symmetric, asymmetric, public, and private. The first two describe where the keys are used in the encryption process, and the last two describe who has access to the keys.