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Even with proper algorithms, per-file encryption leaks quite a lot of meta-data, sizes and usage patterns; also the cloud provider can transparently delete, cor
by mbq 12y ago
Even with proper algorithms, per-file encryption leaks quite a lot of meta-data, sizes and usage patterns; also the cloud provider can transparently delete, corrupt and revert files to previous versions.
- java-man 12y agoI wrote a backup/archive tool [0] that uses authenticated encryption, scrypt, and local key management. The only thing it leaks [1] is the amount of new data added on each snapshot. [0] http://goryachev.com/products/secure-archive http://goryachev.com/products/secure-archive [1] hopefully