Cloak (beta)

A simple command line passphrase based file encryption tool.

Cloak is a simple command line passphrase based file encryption tool, its similar to openssl enc, but it uses scrypt for passphrase key derivation and nacl box for encryption.

This tool is still a WIP.

Usage

Usage: cloak [options...] [flags...]
Example:
cloak encrypt -p rlycoolpass -f file.pdf
Options:
  encrypt    encrypts file
  decrypt    decrypts file
Flags:
  -f     [required] file to encrypt
  -p     [optional] user provided passphrase, if not provided /dev/urandom is used

Examples

> cloak encrypt -f file.pdf
2017/04/30 15:13:21 generating random passphrase ...
2017/04/30 15:13:21 file passphrase:  14abe93eb3347f91ad6c90f4ed3d9c8f
2017/04/30 15:13:21 output file:  file
2017/04/30 15:13:21 finished !  
> cloak encrypt -f details.pdf -p coolpassphrase
2017/04/30 15:15:06 using user defined passphrase
2017/04/30 15:15:06 output file:  details
2017/04/30 15:15:06 finished ! 
> cloak decrypt -f details.pdf -p coolpassphrase
2017/04/30 15:16:26 finished !

TODO

• flag “-overwrite” “-o” overwrites original file
• flag “-r” encrypts all files in dir
• efficitenly read large files using line by line chans
• encrypt using msgpack format ?
• key splitting using shamir
• human readable passphrase generator ?