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RDD(1) General Commands Manual RDD(1)
NAME
rdd – random data dump
SYNOPSIS
rdd [-i source] [-r rekeymb] [-v]
DESCRIPTION
rdd is a high-speed, cryptographically safe random data generator using
optimized versions of the ChaCha8 stream cipher, depending on your CPU.
It is designed to fill crypto devices with random data.
Random binary data is written to standard output.
The options are as follows:
-i source
Read key and IVs from source (default: /dev/urandom)
-r rekeymb
Reload the IV every rekeymb megabytes of output (default: 4).
-v Print a ‘.’ to standard error on every rekey.
EXIT STATUS
The rdd utility exits 0 on success, and >0 if an error occurs.
SEE ALSO
dd(1), random(4), random(7)
NOTES
rdd reads 40 random bytes for the initial key and 32 bytes for every
rekeying from the random source. Setting rekeymb to -1 never rekeys.
This implementation passed dieharder 3.31.1 "-a" and PractRand/RNG_test
0.95 (tested up to 32 TB).
AUTHORS
Leah Neukirchen <leah@vuxu.org>
LICENSE
rdd is in the public domain.
To the extent possible under law, the creator of this work has waived all
copyright and related or neighboring rights to this work.
http://creativecommons.org/publicdomain/zero/1.0/
This program uses the public domain library chacha-opt.
Void Linux April 19, 2020 Void Linux