A Key Store is a secure storage system used to manage cryptographic keys. It allows users to store, retrieve, and manage keys that are essential for encrypting and decrypting data. Key stores are commonly used in various applications, including software development, secure communications, and data protection. Key stores can be implemented in different formats, such as files or databases, and can support various types of keys, including symmetric keys and asymmetric keys. They often include features like access control and auditing to ensure that only authorized users can access the keys, enhancing overall security.