https://github.com/dchest/scryptutil

Go reimplementation of Colin Percival's scrypt file encryption utility.
https://github.com/dchest/scryptutil

Last synced: about 1 year ago
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Go reimplementation of Colin Percival's scrypt file encryption utility.

• Host: GitHub
• URL: https://github.com/dchest/scryptutil
• Owner: dchest
• License: bsd-2-clause
• Created: 2012-04-27T12:09:35.000Z (about 14 years ago)
• Default Branch: master
• Last Pushed: 2014-12-11T08:21:23.000Z (over 11 years ago)
• Last Synced: 2025-04-11T04:36:01.699Z (about 1 year ago)
• Language: Go
• Size: 146 KB
• Stars: 11
• Watchers: 2
• Forks: 3
• Open Issues: 0
• Metadata Files:
  • Readme: README
  • License: LICENSE

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README

          
COMMAND

    scryptutil encrypts and decrypts files.

    Files are encrypted with AES-256 in CTR mode and authenticated with

    HMAC-SHA256. Encryption and HMAC keys are derived from passphrase using

    scrypt key derivation function.

    Usage:

	scryptutil {enc | dec} [infile] [outfile]

    If infile is not given, the program reads from the standard input.

    If outfile is not given, the program writes to the standard output.

    scryptutil is a Go reimplementation of Colin Percival's scrypt utility,

    which is used to encrypt key files for his Tarsnap backup service (see

    http://www.tarsnap.com/scrypt.html). The file format is the same: files

    encrypted by this utility can be decrypted with the original scrypt, and

    vice versa.

INSTALLATION

    $ go get github.com/dchest/scryptutil

BUGS

    Parameters for KDF during encryption are hardcoded to N=2¹⁸, r=8, p=1.

    None of the original scrypt utility flags are supported.