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Other - MS Office 2007 passwords

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  #1  
Old March 8th, 2008, 01:35 PM
Namesniper Namesniper is offline
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Other - MS Office 2007 passwords
Hello,

I am not sure whether if thsi is the correct froum to post, but if its not then mods please move this thread.

I am trying to find out how Office 2007 (Word and Excel) file open passwords are stored within documents protected by a File Open password.

Is password encrypted, what algorithm(s) were used, is it hashed etc?
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  #2  
Old June 17th, 2008, 02:51 AM
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Since your reason for asking this information isn't completely apparent, I'm not going to answer your question completely.

I will tell you that MS Office documents use an MD5 hash after using the RC4 algorithm with a 40-bit key. However, Office XP and later allow you to change the default cryptographic setting to increase security.
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  #3  
Old June 19th, 2008, 08:10 PM
Namesniper Namesniper is offline
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Quote:
Originally Posted by Nilpo
Since your reason for asking this information isn't completely apparent, I'm not going to answer your question completely.

I will tell you that MS Office documents use an MD5 hash after using the RC4 algorithm with a 40-bit key. However, Office XP and later allow you to change the default cryptographic setting to increase security.

Hi,

I didnt thought that anyoen is going to answer my question in June, thanks.

I have a software which is written in C++. Its Word/Excel password recovery software.
Its able to recover MS Office 98-2003 password but is unable to recover MSO 2007 passowrds.
Thats why i have need to know how MSO 2007 encrypts its passwords.
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  #4  
Old June 20th, 2008, 12:25 AM
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Well, I can't really post any more information in the open for obvious reasons. Contact me at my web site at Nilpo.com and I can give you more information.
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  #5  
Old June 28th, 2008, 08:10 PM
Namesniper Namesniper is offline
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I have emailed you thru your website.
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  #6  
Old June 29th, 2008, 03:25 AM
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Quote:
Originally Posted by Namesniper
I have emailed you thru your website.
Replied.
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  #7  
Old June 29th, 2008, 08:30 AM
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Quote:
Originally Posted by Nilpo
Replied.

Strange, I didnt get it.
I have just sent the test message in response to your "auto confirmation message".
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  #8  
Old June 30th, 2008, 07:27 PM
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I have PMed you.
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  #9  
Old July 3rd, 2008, 08:09 PM
Namesniper Namesniper is offline
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It seems that you have ignored my email and PM all together.
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