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 | info} infile [outfile]

    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