Implement Data at Rest Encryption for Duple Backup Cloud Destinations

[sylon]

Dear TerraMaster Product Team,

I hope you are well. I am writing to share a feature enhancement suggestion for Duple Backup that would strengthen the security and appeal of your solution for cloud-based use cases.

Background and Rationale
While Duple Backup already uses secure TLS/SSL channels to encrypt data during transmission, backups stored in cloud destinations remain unencrypted at rest. As more organizations adopt public and hybrid cloud storage, end-to-end data protection—including encryption of backup files on the target storage—is becoming a baseline security requirement. Data-at-rest encryption prevents unauthorized access in the event of misconfigured permissions, insider threats, or exposed storage buckets.

Proposed Feature
Add an optional data-at-rest encryption layer for cloud destinations within the Duple Backup workflow. Key aspects include:

AES-256 Encryption Engine
Leverage a proven AES-256 algorithm to encrypt each backup archive before it is transmitted.

Key Management Options

Allow users to supply their own encryption keys or generate keys automatically.

Integrate with popular cloud KMS (Key Management Service) offerings (e.g., AWS KMS, Azure Key Vault) for seamless key storage and rotation.

Backward Compatibility
Ensure existing backup jobs can be upgraded without requiring reconfiguration of storage endpoints.

User Experience
Extend the existing Duple Backup UI to include a simple toggle or checkbox for “Encrypt backups at rest,” with clear guidance on key management best practices.

Benefits
Regulatory Compliance: Meets requirements for GDPR, HIPAA, and other data-protection regulations that mandate encryption for stored data.

Customer Confidence: Strengthens trust among enterprise customers and service providers who demand end-to-end encryption.

Market Differentiation: Differentiates Duple Backup from competitive NAS backup tools that may lack built-in data-at-rest encryption.

Conclusion
Implementing data-at-rest encryption for cloud destinations in Duple Backup aligns with the security needs of modern enterprises and cloud-first businesses. I believe this enhancement will significantly increase the value of TerraMaster’s backup suite and help win over security-conscious customers.

Thank you for considering this proposal.

[TMeric]

Thank you for your valuable suggestion. I have forwarded your request to the relevant product team for further evaluation.