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Issue 11: UMI Tool for the end user
1 person starred this issue and may be notified of changes. Back to list
Status:  Verified
Owner:  jimwei.h...@gmail.com
Closed:  Mar 2009
Cc:  june.lov...@gmail.com


 
Project Member Reported by june.lov...@gmail.com, Feb 25, 2009
Dear Jim,

Can you help on the last UMIKey tool for the user?

* When the user clicks on the button of 'Change UmiKey Options Above',

  UmiKey firmware will check the password, if correct, will change 
  the user-specified settings.

Attached screen snapshot is as attached.

Thanks a lot

umi_user_tool.jpg
30.1 KB   View   Download
Feb 25, 2009
Project Member #1 jimwei.h...@gmail.com
Dear Paul,

OK. I will finish this in few days.
Mar 3, 2009
Project Member #2 june.lov...@gmail.com
Jim,

Some suggestions about the UMIKEY Write CA 0.2:

1. If password is not matched. Do not erase Security data. There are two reasons. 

First,if user mis-types in error password. He/She will damage his/her key 
immediately! 

Second, if someone wants to damage my key. He/She just needs to type in a error 
password to destroy my key!

Suggestion: If the password is incorrect. Stop Writing anything into key but a error 
counter. Error counter is stored in EEPROM. If the error number overflows, then wipe 
out all data on the Umikey.

By default the error counter max should be 5. So a hacker can't try indefinitely.

2. The count resets to 0 when the password matches correctly.

Thanks

Mar 4, 2009
Project Member #3 june.lov...@gmail.com
(No comment was entered for this change.)
Status: Verified

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