Secure file created by Encryptafile, an application for encrypting data using the latest industry standard encryption algorithms; supports the AES (US Advanced Encryption Standard) Rijndael algorithm as well as the Twofish and RSA encryption algorithms.
EFL files may use either secret-key or public-key encryption.
Formatting file used by NFBTRANS, a Grade Two braille translation program developed by the National Federation of the Blind (NFB); contains instructions that direct the translator how to process a given input file.
EFL files may be global (used by multiple text files) or specific to a single file. Specific EFL files have the same filename as the text file, i.e. "document1.txt" and "document1.efl."
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