Home |
Search |
Today's Posts |
|
#1
Posted to microsoft.public.excel.programming
|
|||
|
|||
Worksheet Password Recovery
Hi all,
Does anybody know the best way to write a macro that will recover the password for a worksheet ?. I am told that the security for this is weak and therefore writing a program to access this is simple . However, how is this different from writing any other program to recovery a password (length undetermined) . Afterall standard techniques would apply (e.g brute force, dictionary methods etc..), so how is this easier for a worksheet ?. Also, I have a program that recovers VBA passwords from Excel workbooks but I have no idea how it does this !?? But it does so instantly without fuss (excel versions XP,2000,95). Can somebody explain how ?. Any help on this, would be appreaciated. Many thanks, |
#2
Posted to microsoft.public.excel.programming
|
|||
|
|||
Worksheet Password Recovery
You only need access to the vba editor to 'unprotect' a
worksheet without knowing the password. Highlight the worksheet in the VBA project pane, then change the visible property to xlSheetVisible in the Properties pane. You can then reset the password to whatever you want. Don't know why you would wish to recover the existing password itself though. -----Original Message----- Hi all, Does anybody know the best way to write a macro that will recover the password for a worksheet ?. I am told that the security for this is weak and therefore writing a program to access this is simple . However, how is this different from writing any other program to recovery a password (length undetermined) . Afterall standard techniques would apply (e.g brute force, dictionary methods etc..), so how is this easier for a worksheet ?. Also, I have a program that recovers VBA passwords from Excel workbooks but I have no idea how it does this !?? But it does so instantly without fuss (excel versions XP,2000,95). Can somebody explain how ?. Any help on this, would be appreaciated. Many thanks, . |
#3
Posted to microsoft.public.excel.programming
|
|||
|
|||
Worksheet Password Recovery
Having a brainstorm - forget what I posted previously! Not
true. -----Original Message----- You only need access to the vba editor to 'unprotect' a worksheet without knowing the password. Highlight the worksheet in the VBA project pane, then change the visible property to xlSheetVisible in the Properties pane. You can then reset the password to whatever you want. Don't know why you would wish to recover the existing password itself though. -----Original Message----- Hi all, Does anybody know the best way to write a macro that will recover the password for a worksheet ?. I am told that the security for this is weak and therefore writing a program to access this is simple . However, how is this different from writing any other program to recovery a password (length undetermined) . Afterall standard techniques would apply (e.g brute force, dictionary methods etc..), so how is this easier for a worksheet ?. Also, I have a program that recovers VBA passwords from Excel workbooks but I have no idea how it does this !?? But it does so instantly without fuss (excel versions XP,2000,95). Can somebody explain how ?. Any help on this, would be appreaciated. Many thanks, . . |
#4
Posted to microsoft.public.excel.programming
|
|||
|
|||
Worksheet Password Recovery
I have done this bit through the VBA editor, and unhidden the worksheet. What I can't do is unhide the columns on this worksheet as the 'unhide' option is disabled - which means it probably still needs me to enter a password. Please advise , Many thanks, -----Original Message----- You only need access to the vba editor to 'unprotect' a worksheet without knowing the password. Highlight the worksheet in the VBA project pane, then change the visible property to xlSheetVisible in the Properties pane. You can then reset the password to whatever you want. Don't know why you would wish to recover the existing password itself though. -----Original Message----- Hi all, Does anybody know the best way to write a macro that will recover the password for a worksheet ?. I am told that the security for this is weak and therefore writing a program to access this is simple . However, how is this different from writing any other program to recovery a password (length undetermined) . Afterall standard techniques would apply (e.g brute force, dictionary methods etc..), so how is this easier for a worksheet ?. Also, I have a program that recovers VBA passwords from Excel workbooks but I have no idea how it does this !?? But it does so instantly without fuss (excel versions XP,2000,95). Can somebody explain how ?. Any help on this, would be appreaciated. Many thanks, . . |
#5
Posted to microsoft.public.excel.programming
|
|||
|
|||
Worksheet Password Recovery
"Bob" wrote in message ...
Hi all, Does anybody know the best way to write a macro that will recover the password for a worksheet ?. I am told that the security for this is weak and therefore writing a program to access this is simple . However, how is this different from writing any other program to recovery a password (length undetermined) . Afterall standard techniques would apply (e.g brute force, dictionary methods etc..), so how is this easier for a worksheet ?. Also, I have a program that recovers VBA passwords from Excel workbooks but I have no idea how it does this !?? But it does so instantly without fuss (excel versions XP,2000,95). Can somebody explain how ?. Any help on this, would be appreaciated. Many thanks, AFAK, the standard encryption is idd weak. However they now have stonger rc4(128 bits) encryption. The best way to understand these encryptions is to first check how they work. http://www.ncat.edu/~grogans/algorit...riptio.htm(for the rc4 algorithm or streaming algorithm) |
#6
Posted to microsoft.public.excel.programming
|
|||
|
|||
Worksheet Password Recovery
Take a look he
http://www.mcgimpsey.com/excel/removepwords.html In article , "Bob" wrote: Hi all, Does anybody know the best way to write a macro that will recover the password for a worksheet ?. I am told that the security for this is weak and therefore writing a program to access this is simple . However, how is this different from writing any other program to recovery a password (length undetermined) . Afterall standard techniques would apply (e.g brute force, dictionary methods etc..), so how is this easier for a worksheet ?. Also, I have a program that recovers VBA passwords from Excel workbooks but I have no idea how it does this !?? But it does so instantly without fuss (excel versions XP,2000,95). Can somebody explain how ?. Any help on this, would be appreaciated. Many thanks, |
Reply |
Thread Tools | Search this Thread |
Display Modes | |
|
|
Similar Threads | ||||
Thread | Forum | |||
workbook password recovery | Excel Discussion (Misc queries) | |||
Password Recovery | Excel Discussion (Misc queries) | |||
Password Recovery on e mail | Excel Discussion (Misc queries) | |||
Password Recovery | Excel Discussion (Misc queries) |