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 # passwordfile
-C++ library to read/write passwords from/to encrypted files.
+C++ library to read/write key-value pairs from/to AES-256 encrypted files.
+It allows to organize the key-value pairs in tables within an hierarchical
+structure. The data can be compressed with gzip before applying the encryption.
 
 ## Build instructions
 The passwordfile library depends on c++utilities and is built in the same way.