Okay, I've looked into the code and see that there is, indeed, no options 
available for Accurate or Verify to incorporate anything other than SHA1 
(1) or MD5 (5) as relates to signature.  Even though SHA256 and SHA512 have 
been in the code for maybe close to a decade those have never been added 
for signature comparison for Accurate backups.  I'm surprised that XXH128 
is the recommended Signature yet wasn't added for Accurate backups.  Now I 
need to ponder whether this is a patch I'm interested in making...
-John

On Thursday, August 14, 2025 at 2:23:29 PM UTC-4 John Lockard wrote:

> Correct me if I'm wrong...
>
> In Director -> Fileset -> Options, I choose my Signature, and according to 
> the docs XXH128 seems to be the recommended signature.
>
> Then, in Verity and Accurate I choose which values matter to me for making 
> an accurate backup, i.e. which file changes matter to me.  Looking through 
> the list of possible options, I see there are options for verifying MD5 and 
> SHA1 signatures (5 and 1 respectively), but I don't see options for SHA256, 
> SHA512, and especially the recommended signature, XXH128.  I haven't dived 
> into the source, yet, to see if I can figure it out for myself, but if 
> someone can quickly tell me what the Verify/Accurate option for comparing 
> an XXH128 signature, that would be fantastic.
>
> Also, the docs should be updated to reflect the correct information.
>
> Thanks,
> -John
>
> -- 
> - Adaptability -- Analytical --- Ideation ---- Input ----- Belief - 
> -------------------------------------------------------------------
>          John M. Lockard |  U of Michigan - School of Information
>           Unix Sys Admin |      Suite 205 | 309 Maynard Street
>       [email protected] |        Ann Arbor, MI  48104-2211
>  www.umich.edu/~jlockard <http://www.umich.edu/%7Ejlockard> |     
> 734-615-8776 <(734)%20615-8776> | 734-763-9677 <(734)%20763-9677> FAX
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>
>

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