Celebrate National IT Professionals Day with 3 months of free Premium Membership. Use Code ITDAY17

x
?
Solved

ACCESS 2010 ENCRYPTION PERFORMANCE

Posted on 2014-03-05
10
Medium Priority
?
563 Views
Last Modified: 2014-03-06
Hi All
does anyone have a simple answer regarding the Encrypt database option.
Specifically (and ref the ominous message re row-level locking), does it impact performance, or negate the notification re 'changed by someone else ..'?

In a multi-user environment, is encryption OK?

thank you
0
Comment
Question by:COACHMAN99
[X]
Welcome to Experts Exchange

Add your voice to the tech community where 5M+ people just like you are talking about what matters.

  • Help others & share knowledge
  • Earn cash & points
  • Learn & ask questions
  • 4
  • 3
  • 3
10 Comments
 
LVL 58

Accepted Solution

by:
Jim Dettman (Microsoft MVP/ EE MVE) earned 2000 total points
ID: 39908174
<<does it impact performance>>

Yes.  Everything gets un-encrypted and encrypted on the fly.  You don't get something for nothing.

<<, or negate the notification re 'changed by someone else ..'?>>

 It doesn't change anything else.  All it means is that when stored on disk, the data is encrypted.  

 Locking and all other functions are the same.

Jim.
0
 
LVL 7

Author Closing Comment

by:COACHMAN99
ID: 39908244
OK Thanks Jeff. (I'm assuming low % impact on performance when 10 concurrent users?)
0
 
LVL 58
ID: 39908950
Depends on a number of factors; available CPU, amount of data, pattern of usage, etc.

It's not the type of thing that it's easy to say if it will have a large or small impact other then trying it.

 The only thing you can state for certain is that it will result in less performance if it's turned on.

Jim.
0
Microsoft Certification Exam 74-409

Veeam® is happy to provide the Microsoft community with a study guide prepared by MVP and MCT, Orin Thomas. This guide will take you through each of the exam objectives, helping you to prepare for and pass the examination.

 
LVL 7

Author Comment

by:COACHMAN99
ID: 39909874
cheers Jim.
0
 
LVL 75
ID: 39910012
Jim ... did encryption change in A2010? Because in <=A2003, all it did was ... say you opened an MDB in Word ... it would be *totally unreadable* ... as I recall.

Are you saying now that it actually encrypts data ?

mx
0
 
LVL 58
ID: 39910044
MX,

  Not sure what you mean, Access has always had the ability to encrypt and if you did, the data was unreadable.

  But yes, the encryption method was changed int he past couple of releases (Believe it was A2010) because the old method had become crackable.

Jim.
0
 
LVL 75
ID: 39910168
I don't recall ... Encryption from with in the Access UI ... every actually encrypting data. Are you positive about that ? I assume you have tried it ?
0
 
LVL 58
ID: 39910195
Yes.   In an un-encrypted DB, you could take Word and open the db and read the fields.   Yes, there would be a lot of junk, but if you understand the structure, you can read the data.

With encryption turned on, you can't read the pages at all.

Jim.
0
 
LVL 75
ID: 39910220
Understood. But ... if you ... say were to Encrypt a BE data db - and send it to me - and I open it with Access - is the data going to be encrypted ?
0
 
LVL 7

Author Comment

by:COACHMAN99
ID: 39910293
If you cant read the data with an 'external' editor e.g. Word, then it must be encrypted.
and, if you open it using the password then your 'view' is un-encrypted,
0

Featured Post

[Webinar] Lessons on Recovering from Petya

Skyport is working hard to help customers recover from recent attacks, like the Petya worm. This work has brought to light some important lessons. New malware attacks like this can take down your entire environment. Learn from others mistakes on how to prevent Petya like worms.

Question has a verified solution.

If you are experiencing a similar issue, please ask a related question

AutoNumbers should increment automatically, without duplicates.  But sometimes something goes wrong, and the next AutoNumber value is a duplicate.  This article shows how to recover from this problem.
Instead of error trapping or hard-coding for non-updateable fields when using QODBC, let VBA automatically disable them when forms open. This way, users can view but not change the data. Part 1 explained how to use schema tables to do this. Part 2 h…
Do you want to know how to make a graph with Microsoft Access? First, create a query with the data for the chart. Then make a blank form and add a chart control. This video also shows how to change what data is displayed on the graph as well as form…
Visualize your data even better in Access queries. Given a date and a value, this lesson shows how to compare that value with the previous value, calculate the difference, and display a circle if the value is the same, an up triangle if it increased…

730 members asked questions and received personalized solutions in the past 7 days.

Join the community of 500,000 technology professionals and ask your questions.

Join & Ask a Question