Sadly, so true! B/c libraries are rare & special snowflakes that don't operate
by the rules of the rest of the web universe ;)
Speaking of library community web standards re: libguides, can anyone share
what their library uses as metrics for success / key performance indicators in
LibGuides
How would such a document differ from the usability guidelines published
by the Department of Health and Human Services?
http://guidelines.usability.gov/
(Now that's "official"!)
-Shaun
On 10/1/14 4:24 PM, Bennett Ponsford wrote:
On the other hand, I'm looking for best practices that I call
You will also have support from the LITA Board on this. The document/wiki
can be published/publicised far and wide. The UX IG can bring the document
to the board and ask for endorsement, which will also help with its
authority. The IG could also take responsibility for the yearly updating,
and it
One approach you might take, is to do what the federal government and local
governments are increasingly doing: selectively adopt industry standards. So
like for building code. Most municipalities adopt the generic one and then list
exceptions.
So the effort is spent reviewing and selecting th
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I'd like to see us point folks to http://www.usability.gov/ & to talk more
about process (iterative, agile, adaptive) and analytics/metrics for success so
that administration will begin to realize that libraries need to commit
resources ($ & people) to web work. It's not just a fun little side g
Designing Digital Services - per the government of the UK's template -would be
helpful for the process orientation of user-centered web design (a key
principle that library admins have to grasp)- https://www.gov.uk/service-manual
-Original Message-
From: Code for Libraries [mailto:CODE4L
Despite some of its relative flaws, MD5 is frequently selected over SHA-256
in archives as the checksum algorithm of choice. One of the primary factors
here is the longer processing time required for SHA-256, though there have
been no empirical studies calculating that time difference and its overa
Hi everybody:
Long-time listener; rare-time poster.
I just published guidance on building archivable websites:
https://library.stanford.edu/blogs/digital-library-blog/2014/09/guidance-building-archivable-websites
and thought this group would be interested.
Please let me know if you have any
So many responses to address! ah!
The LITA support to this idea is lovely to see. Thank you very much.
I agree that code4lib is awesome and that we could potentially create a
document which would gain traction in the wider community BUT I really do
think official support/integration is the best c
Intel skylake processors have dedicated sha instructions.
See: https://software.intel.com/en-us/articles/intel-sha-extensions
Using a tree hash approach (which is inherently embarrassingly parallel)
will leave io time dominant. This approach is used by Amazon glacier - see
http://docs.aws.amazon.c
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+1
MD5 is little better than ROT13. At least with ROT13, you have no illusions.
We use SHA 512 for most work. We don't do finance or national security, so it
is a good fit for us.
Cary
On Oct 2, 2014, at 12:30 PM, Simon Spero wrote:
> Intel skylake processors have dedicated sha instructions.
For checksums for ensuring archival integrity, are cryptographic flaws
relavent? I'm not sure, is part of the point of a checksum to ensure against
_malicious_ changes to files? I honestly don't know. (But in most systems, I'd
guess anyone who had access to maliciously change the file would als
SHA-256 is authorized up to SECRET.
SHA-384+ is required for TOP SECRET.
Algorithms approved for more stringent requirements such as FOUO-SCI (SES
Covering-up Incompetence) have not been revealed, though CARPA has funded
research into plausible repudiability.
Checksums can be kept separate (tripwire style).
For JHU archiving, the use of MD5 would give false positives for duplicate
detection.
There is no reason to use a bad cryptographic hash. Use a fast hash, or use
a safe hash.
Simon
On Oct 2, 2014 6:34 PM, "Jonathan Rochkind" wrote:
> For checksum
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