"need a quick hashing method"

[Robert P. J. Day]

On Mon, 22 Nov 2010, Arthur Bela wrote:

> HDD#1
> HDD#2
>
> I copy files between HDD#1 and HDD#2.
>
> When i finish, i need a quick "hasing method" - i just want to check,
> that the copy was 100% ok.
>
> md5sum, sha256sum is slow -> are there any "very fast" hash algoritms?
> - just for checking if the copied file is corrupt or not [i just need
> to know, if there were even 1 Byte error when copying]
>
> i can write the script, that checks the files, i just need a hash
> algoritm [""software/command""], that is fast enough.

  well, "sum" is fairly simple.  not really robust but it should be
adequate for checking for inadvertant corruption.

rday

-- 

========================================================================
Robert P. J. Day                               Waterloo, Ontario, CANADA
                        http://crashcourse.ca

Twitter:                                       http://twitter.com/rpjday
LinkedIn:                               http://ca.linkedin.com/in/rpjday
========================================================================