What is client-side encryption used for?

Client-side encryption is used to enhance the security of data before it is transmitted to a cloud storage service, such as Amazon S3. In this process, the data is encrypted on the client side, meaning that the encryption occurs before the data is uploaded. This ensures that the sensitive information is protected even during transmission and storage. Only users or applications that possess the appropriate decryption keys can access the original data.

This approach is particularly beneficial for organizations that require a high level of data privacy, as it offers an additional layer of security, meaning that unauthorized users or even service providers cannot access the unencrypted data. The use of client-side encryption allows data to remain confidential, fulfilling compliance and regulatory requirements for data protection.

While other options detail related functions, they do not align with the primary purpose of client-side encryption. Compressing data, managing access permissions, or replicating data across regions do not specifically involve the encryption of data itself before it reaches cloud services.