Description: A group key is a fundamental element in public key infrastructure (PKI) that enables secure communication among a set of users. This key is shared among all members of a group, facilitating the encryption and decryption of messages in such a way that only those who possess the key can access the information. Unlike individual keys, which are unique to each user, the group key promotes collaboration and security in environments where multiple users need to exchange information confidentially. The main characteristics of a group key include its ability to simplify key management in collaborative settings, as well as its use in applications that require a high level of security, such as in various sectors handling sensitive data. The relevance of group keys lies in their ability to facilitate secure communication without the need for each user to manage multiple keys, which can be a challenge in terms of usability and security. In summary, the group key is an essential tool in public key infrastructure that allows groups of users to communicate securely and efficiently.
