Re: feature request for coreutils: b2sum

[Taylor R Campbell]

    Date: Wed, 27 May 2015 17:59:10 +0000
    From: Zooko Wilcox-OHearn <address@hidden>

   Dear coreutils folks and RMS:

   I'm writing to ask you to add the BLAKE2 hash function to coreutils.

Zooko asked me to send the following timings of portable BLAKE2 C code
versus the hand-optimized assembly for MD5 and portable C for SHA-256
that one finds in OpenSSL 1.0.1k, computed on a 1.2 GHz Freescale
i.MX6 CPU (on different file, from /dev/urandom, of the same size as
Zooko reported timings for, 1073741824 bytes):

$ time md5sum randfile.0
7af160fa500c6ad20be1c8119c9141f8  randfile.0

real    0m9.132s
user    0m6.600s
sys     0m2.530s
$ time sha256sum randfile.0
12f7ce9d5594d60ffef36e1f1fb929c5e8b683112dffcbd5e9c04b819bb47e43  randfile.0

real    0m25.223s
user    0m22.910s
sys     0m2.310s
$ time b2sum randfile.0
ea2c77e755d0f5c84e9fff444cd6ce83a566b134d43e4fe37ed53886e0ca5c7e6141968498d5d765c4190e4b567c437337e8e57ef5ba9306cc11db29a4b9e987
 randfile.0

real    0m48.012s
user    0m46.070s
sys     0m1.900s
$ time b2sum -a blake2sp randfile.0
2886c0adfd613381d02f18a8ed18527c98d88b115a974e61e030fb914118bd0d randfile.0

real    0m9.880s
user    0m23.610s
sys     0m3.260s