1. mrjmc99's Avatar
    Is anyone using device encryption on 10.3? If so how does it impact performance and battery life? I'm thinking about turning it on.

    Any feedback would be greatly appreciated.

    Z30STA100-3/10.3.0.1154
    09-18-14 05:09 PM
  2. anon721037's Avatar
    Just turn on and try it, you can turn it off.

    Posted via CB10
    09-18-14 05:51 PM
  3. bakron1's Avatar
    I am using the device encryption on my z30 with 10.3.0.1154 leak and I haven't noticed any less device or battery performance.

    Sent from my Lovely z30 on T Mobile USA (10.3.0.1154)
    anon8656116, mrjmc99 and tigrute like this.
    09-18-14 06:09 PM
  4. HotFix's Avatar
    If it works like Windows file system encryption, which I am given to believe it does, the encryption is handled on the fly with no real performance and subsequently no real battery impact.

    I'm sure we could do benchmarks that show a 1 or 2% difference, but even in that case the result is well worth it.

    Posted via CB10 on my Z30STA100-5/10.2.1.3337
    vinniesworld likes this.
    09-18-14 06:33 PM
  5. mrjmc99's Avatar
    If it works like Windows file system encryption, which I am given to believe it does, the encryption is handled on the fly with no real performance and subsequently no real battery impact.

    I'm sure we could do benchmarks that show a 1 or 2% difference, but even in that case the result is well worth it.

    Posted via CB10 on my Z30STA100-5/10.2.1.3337
    That's what I would expect since the cpu should have the extensions for encryption. I'll give it a shot.

    Thanks to all

    Z30STA100-3/10.3.0.1154
    09-18-14 07:24 PM
  6. vgorous's Avatar
    When you record a long video, that's the best way to test it. Once the video is complete, it'll save the large file but also encrypt it which takes time.

    Posted via CB10
    09-18-14 08:03 PM
  7. adamlau's Avatar
    Take a look at the SD Card benchmark thread. Encryption significantly affects the performance of r/w operations. The same holds true with device memory.
    09-18-14 08:10 PM
  8. mrjmc99's Avatar
    Take a look at the SD Card benchmark thread. Encryption significantly affects the performance of r/w operations. The same holds true with device memory.
    Thanks I'm not planning on encrypting my SD card. Too scared of loosing my data, since we are running leaks, never know when you might need to reload os

    Z30STA100-3/10.3.0.1154
    09-18-14 08:15 PM
  9. mrjmc99's Avatar
    Just finishing encrypting, took about an hour while still using phone, no noticeable lag or delay, even during the initial encryption

    Z30STA100-3/10.3.0.1154
    09-18-14 08:16 PM
  10. wojt7's Avatar
    There isn't any battery life penalty with encryption on.
    Also never experienced any delays so far (couple of months with encryption on).
    mrjmc99 likes this.
    09-18-14 08:25 PM
  11. tickerguy's Avatar
    I've run with it on since 10.0.10 on the device. Not on the card, but I don't put anything I care about on the card....
    09-18-14 10:46 PM
  12. adamlau's Avatar
    There isn't any battery life penalty with encryption on.
    There is a definite penalty with encryption enabled. To what extent remains to be benchmarked. Until then, we can only surmise. FYI, all of the devices on our network are fully encrypted (memory card + device memory) in accordance with our BES IT policy.
    Last edited by adamlau; 09-19-14 at 01:04 AM.
    09-18-14 11:05 PM
  13. Jckfrost780's Avatar
    I'm running 10.3.0 1052n been encrypted for about 48 hrs and no noticeable issue at all. I will post again if things run awry....

    Posted via CB10
    09-19-14 12:39 AM
  14. HotFix's Avatar
    Take a look at the SD Card benchmark thread. Encryption significantly affects the performance of r/w operations. The same holds true with device memory.
    I have ways encrypted both my main storage and SD card and never noticed any major performance issues. Granted I didn't do a before and after benchmark, and I am sure there is some small penalty, but I highly doubt most users will notice performance issues with encryption on.

    Posted via CB10 on my Z30STA100-5/10.2.1.3337
    09-19-14 06:05 AM
  15. wojt7's Avatar
    There is a definite penalty with encryption enabled. To what extent remains to be benchmarked. Until then, we can only surmise. FYI, all of the devices on our network are fully encrypted (memory card + device memory) in accordance with our BES IT policy.
    I've benchmarked it for you. That's why I posted here.

    I understand your point that it takes a bit more work for the cpu to encrypt on the fly but in practice any change there is is unnoticeable.
    I look at the device monitor cpu utilisation all the time and it hasn't changed a bit.
    Also Basa battery analyser runs 24x7 on my phone and I didn't notice any change.

    Battery life on my Z10 is my number one priority . I'm probably obsessed about it. I wouldn't turn encryption on if it drained battery faster. In my experience and usage scenarios it does not harm battery at all.
    09-19-14 12:28 PM
  16. mrjmc99's Avatar
    I've benchmarked it for you. That's why I posted here.

    I understand your point that it takes a bit more work for the cpu to encrypt on the fly but in practice any change there is is unnoticeable.
    I look at the device monitor cpu utilisation all the time and it hasn't changed a bit.
    Also Basa battery analyser runs 24x7 on my phone and I didn't notice any change.

    Battery life on my Z10 is my number one priority . I'm probably obsessed about it. I wouldn't turn encryption on if it drained battery faster. In my experience and usage scenarios it does not harm battery at all.
    I agree with you, so far no change in performance or battery life.
    Device encryption performance-img_20140919_134722.png

    Z30STA100-3/10.3.0.1154
    09-19-14 12:47 PM
  17. anon721037's Avatar
    Well I wanted to know first hand so I turned it on last night and so far not one bit of difference. I will let you know for sure in a day or so.

    Posted via CB10
    09-19-14 12:48 PM
  18. FCSC's Avatar
    No difference for me either, been about a week.


    Posted via CB10
    09-19-14 01:13 PM
  19. danp2000's Avatar
    This is a little off topic but my big issue with encryption would be losing access the data on my card if my phone died.

    T-Mobile Z10 STL100-3 running 10.3.0.1154
    09-19-14 01:23 PM
  20. mrjmc99's Avatar
    This is a little off topic but my big issue with encryption would be losing access the data on my card if my phone died.

    T-Mobile Z10 STL100-3 running 10.3.0.1154
    That is my concern as well, that's why I'm only doing device.
    BlackBerry should come up with a way that let's you decrypt or access an orphaned SD card in case of device failure through link or something else that can authenticate you to the card.

    Z30STA100-3/10.3.0.1154
    09-19-14 01:34 PM
  21. HotFix's Avatar
    This is a little off topic but my big issue with encryption would be losing access the data on my card if my phone died.

    T-Mobile Z10 STL100-3 running 10.3.0.1154
    What if you lost your phone or the card became corrupted? The net effect would be the same.

    The real solution is to back up the data on your SD Card so that losing access to the data on it for whatever reason would not be catastrophic.

    Posted via CB10 on my Z30STA100-5/10.2.1.3337
    09-25-14 07:23 AM
  22. mrjmc99's Avatar
    FYI I noticed that android app performance got really bad with apps that rely on disk i/o. I reverted to unencrypted the other night

    Z30STA100-3/10.3.0.1154
    09-25-14 07:47 AM
  23. anon8656116's Avatar
    What if you lost your phone or the card became corrupted? The net effect would be the same.
    You are making a comparison that doesn’t fit the scenario he was describing. If you lose the phone with the SD card or if the SD card is broken, then that data would be lost either way, regardless of encryption. The benefit of the SD card is that you can remove it whenever you want, while the encryption assures that the data is secure. If for whatever reason you need to restore your OS and forget to (or can’t) decrypt the SD card first, which is not unlikely, the data will be lost. It’s a disappointing decision by BlackBerry not to allow the user to set a master password or expose the encryption key. In principle the SD card should be less vulnerable to corruption, so the weakest link remains the BlackBerry OS.

    Making backups is always recommended of course, but it’s a tedious process. You need to connect with Link and wait until the backup process is completed before you can use your phone, which can easily take 10 minutes to an hour (or more, if the SD card is large). If you don’t use Link for the SD card, then you have to do this manually all the time. In short, it’s just not practical to make such backups all the time. So his concern is legitimate.

    There is one noticeable performance issue with device encryption: boot time. It does take quite a bit longer to launch the OS.
    09-25-14 08:07 AM

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