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Old 09-24-2008, 03:48 PM   #1 (permalink)
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Default How to maximize security for external memory cards?

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As we now have got OS v4.5 with the possibility to add 8Gb (and maybe even larger) memory cards, I hope some of you have found an optimal way to set up the BB with removable cards.

My hope is to have all the stuff on the removable card encrypted. I want files copied to the BB card from the PC to be encrypted (when connected to the PC as a mass storage device). As I can see files copied from the PC to the BB are not encrypted.

My plan is to use the BB as a substitute for a secure USB memory stick. If I can supply my colleague's BBs with 8Gb cards with encryption it is easier to forbid use of standard memory sticks.


Do you know if there are any settings (or 3 parties’ software) that will force encryption on files copied from PC to the BB?

Thanks in advance for any great advice.
Harald
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Old 09-24-2008, 04:04 PM   #2 (permalink)
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I'm pretty sure when you set a password on the BB then you can go into the media card and encrypt that as well.
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Old 09-24-2008, 04:10 PM   #3 (permalink)
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How to: How to encrypt internal and external file systems on BlackBerry smartphones

Important Part: You can connect the BlackBerry smartphone to the computer to transfer files between the BlackBerry smartphone and the computer, or use Bluetooth® technology to send media files to or receive media files from a Bluetooth enabled device.

Turning on the mass storage mode option on the BlackBerry smartphone allows you to transfer files quickly over a USB connection between the media card and the computer without using the media manager tool of the BlackBerry® Desktop Manager. When you transfer files to the media card using mass storage mode, the device does not encrypt the transferred files using mass storage mode even if the BlackBerry smartphone is set to encrypt files stored on the media card. If you transfer encrypted files from the media card using mass storage mode, the computer cannot decrypt the transferred files using mass storage mode.
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Last edited by zerog46 : 09-24-2008 at 04:16 PM.
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Old 09-24-2008, 04:11 PM   #4 (permalink)
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If encryption is set up on the device, you can use Roxio through Desktop Manager to get the files to encrypt when being put onto the card. But that would require DM on all the computers your folks would be using. And it's slow.

Sounds like you'd have to find some third party application, if there is any, that'll encrypt the SD card, but I doubt it would have a BB application. Then that program would have to be running on all the computers your folks would be using.
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Old 09-24-2008, 04:12 PM   #5 (permalink)
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My settings on the BB is:
+ Media Card Support = On
+ Encryption Mode = Security Password & Device
+ Encrypt Media Files = YES
+ Mass Storage Support = On
+ Auto enable Mass Storage Mode When Connected = Prompt

If I use the BB as a mass storage device (copy files to the BB) and then remove the memory card and put it into a memory card reader, I can read all files recently copied to the card when mounted in the BB.

I have a password on my BB. (required from the policy)

Hopefully this was a clarification.
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Old 09-24-2008, 04:17 PM   #6 (permalink)
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Read what I added above.
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Old 09-25-2008, 12:31 AM   #7 (permalink)
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Thanks to zerog46 and monkeypaw for your reply and for the link to blackberry.com where it is written what I have had experience of.

My wish is to use the BB as an encrypted memory stick. That means I can not depend on an application on the PC (Want the possibility to connect the BB to external PCs)

My conclusion is then that the BB system can not (yet?) be used for use as a secure mass storage device. If anyone know about such a third parties application for the BB, please let me know.

Thanks for replying.
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