A key distribution center (KDC) in cryptography is a system that is responsible for providing keys to the users in a network that shares sensitive or private data. Each time a connection is established between two computers in a network, they both request the KDC to generate a unique password which can be used by the end system users for verification.
A key distribution center is a form of symmetric encryption that allows the access of two or more systems in a network by generating a unique ticket type key for establishing a secure connection over which data is shared and transferred. KDC is the main server which is consulted before communication takes place. Due to its central infrastructure, KDC is usually employed in smaller networks where the connection requests do not overwhelm the system. KDC is used instead of standard key encryption because the key is generated every time a connection is requested, which minimizes the chances of attack.
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