Description: The decryption of data using a KMS (Key Management Service) key is a fundamental process in managing information security in the cloud, especially on various cloud platforms. KMS is a service that allows users to create and control the encryption keys used to protect data. When data is encrypted, it is transformed into an unreadable format for anyone without the appropriate key. The decryption process, therefore, involves using a KMS key to reverse this process, allowing the data to be read and used again. This mechanism not only ensures that sensitive information is protected from unauthorized access but also facilitates compliance with security and privacy regulations. The integration of KMS with cloud storage solutions allows users to efficiently manage encryption keys, ensuring that data stored in the cloud is always protected and accessible only to those with the appropriate permissions. Additionally, KMS offers features such as automatic key rotation and audit logging, adding an extra layer of security and control over data access.