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Re: SHA-512

From mhx@iae.nl (Marcel Hendrix)
Subject Re: SHA-512
Newsgroups comp.lang.forth
Message-ID <65111318918435@frunobulax.edu> (permalink)
Date 2012-12-17 22:24 +0200
References <bc497962-8b67-4b1a-a8e3-ef1311baf16b@googlegroups.com>
Organization Wanadoo

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jzakiya@gmail.com writes Re: SHA-512
[..]
> Unrolling UpDateHash on VFX reduced time from 16.405 secs to 16.030.
[..]

I can't measure the improvement that gives, but I added it anyway.

Today I backported SHA-512 to SHA-256. It took only a few minutes.

Unfortunately, SHA-256 runs only on iForth32 as ROR for iForth64 
rotates 64 bits, which is not suitable. Fixing this to let SHA-256 
run on a 64bit Forth is rather inefficient.

I see that SHA256's test3 only processes 1 million characters. 
The test3 for SHA512 is doing 2 million characters. Take care
when comparing times for SHA-256 with SHA-512!

SHA256, iForth32, i7 920, 2.77 GHz, test3: 8.621 seconds or 41.58 MB/s/GHz.

It seems VFX is doing rather poorly on SHA256 if it needs 16.030 seconds?

-marcel

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SHA-512 mhx@iae.nl (Marcel Hendrix) - 2012-12-02 23:48 +0200
  Re: SHA-512 jzakiya@gmail.com - 2012-12-07 14:47 -0800
    Re: SHA-512 Coos Haak <chforth@hccnet.nl> - 2012-12-08 00:49 +0100
      Re: SHA-512 jzakiya@gmail.com - 2012-12-07 16:54 -0800
        Re: SHA-512 Coos Haak <chforth@hccnet.nl> - 2012-12-08 18:21 +0100
      Re: SHA-512 jzakiya@gmail.com - 2012-12-08 18:36 -0800
        Re: SHA-512 mhx@iae.nl (Marcel Hendrix) - 2012-12-09 09:14 +0200
          Re: SHA-512 jzakiya@gmail.com - 2012-12-09 17:23 -0800
            Re: SHA-512 jzakiya@gmail.com - 2012-12-09 17:29 -0800
              Re: SHA-512 jzakiya@gmail.com - 2012-12-09 20:46 -0800
              Re: SHA-512 m.a.m.hendrix@tue.nl - 2012-12-10 03:53 -0800
                Re: SHA-512 jzakiya@gmail.com - 2012-12-10 13:05 -0800
                Re: SHA-512 mhx@iae.nl (Marcel Hendrix) - 2012-12-10 23:17 +0200
                Re: SHA-512 jzakiya@gmail.com - 2012-12-13 06:30 -0800
                Re: SHA-512 mhx@iae.nl (Marcel Hendrix) - 2012-12-13 21:33 +0200
                Re: SHA-512 jzakiya@gmail.com - 2012-12-13 19:38 -0800
                Re: SHA-512 mhx@iae.nl (Marcel Hendrix) - 2012-12-14 22:52 +0200
                Re: SHA-512 jzakiya@gmail.com - 2012-12-14 16:39 -0800
                Re: SHA-512 mhx@iae.nl (Marcel Hendrix) - 2012-12-15 19:11 +0200
                Re: SHA-512 mhx@iae.nl (Marcel Hendrix) - 2012-12-16 16:00 +0200
                Re: SHA-512 jzakiya@gmail.com - 2012-12-16 17:33 -0800
                Re: SHA-512 jzakiya@gmail.com - 2012-12-16 22:35 -0800
                Re: SHA-512 mhx@iae.nl (Marcel Hendrix) - 2012-12-17 10:14 +0200
                Re: SHA-512 mhx@iae.nl (Marcel Hendrix) - 2012-12-17 10:51 +0200
                Re: SHA-512 jzakiya@gmail.com - 2012-12-17 09:13 -0800
                Re: SHA-512 mhx@iae.nl (Marcel Hendrix) - 2012-12-17 22:24 +0200
                Re: SHA-512 jzakiya@gmail.com - 2013-01-15 20:38 -0800
                Re: SHA-512 jzakiya@gmail.com - 2013-01-15 20:54 -0800
                Re: SHA-512 Howerd <howerdo@yahoo.co.uk> - 2012-12-13 13:06 -0800
                Re: SHA-512 Howerd <howerdo@yahoo.co.uk> - 2012-12-13 13:03 -0800
    Re: SHA-512 mhx@iae.nl (Marcel Hendrix) - 2012-12-08 22:08 +0200

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