Kopia is a backup utility designed to create encrypted, deduplicated, and compressed snapshots of files and directories. It functions as a client-side tool that secures data locally before transmitting it to various storage targets, ensuring that sensitive information remains protected throughout the backup process.
The system utilizes content-addressable block storage and metadata-driven versioning to identify and remove redundant data across multiple snapshots. By employing a pluggable storage abstraction layer, it supports a wide range of local, network, and cloud-based storage providers, allowing for the centralization of data protection across multiple machines.
To maintain long-term reliability, the software incorporates integrity verification through cryptographic hashing and Merkle-tree structures. These mechanisms detect and prevent data corruption, while asynchronous synchronization processes manage the transfer of blocks to ensure consistency and efficiency in disaster recovery scenarios.
