https://github.com/drish/cloak

A simple passphrase based file encryption tool.
https://github.com/drish/cloak

file-encryption nacl scrypt shamir-secret-sharing

Last synced: 2 months ago
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A simple passphrase based file encryption tool.

• Host: GitHub
• URL: https://github.com/drish/cloak
• Owner: drish
• License: apache-2.0
• Created: 2017-04-23T23:30:44.000Z (over 7 years ago)
• Default Branch: master
• Last Pushed: 2021-09-15T22:22:38.000Z (over 3 years ago)
• Last Synced: 2024-06-19T05:36:15.370Z (7 months ago)
• Topics: file-encryption, nacl, scrypt, shamir-secret-sharing
• Language: Go
• Homepage:
• Size: 43.9 KB
• Stars: 11
• Watchers: 3
• Forks: 2
• Open Issues: 0
• Metadata Files:
  • Readme: README.md
  • License: LICENSE

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README

        


  

  
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](http://www.tarsnap.com/scrypt.html) for passphrase key derivation and [nacl](https://nacl.cr.yp.to/) box for encryption.

This tool is still a WIP.

## Usage

```sh

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 

```sh

> 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 ?