Adobe Document Encryption Guidelines and Compatibility Matrix
Product Version |
Acrobat X (AES-256) Compatible (Recommended Choice) |
Acrobat 9.0 and Later (AES-128, AES-256) Compatible* |
Acrobat 7.0 and Later (128-bit RC4, AES-128) Compatible |
Acrobat 6.0 and Later (128-bit RC4) Compatible |
Acrobat 5.0 and Later (128-bit RC4) |
Acrobat 3.0 and Later (40-bit) |
|---|---|---|---|---|---|---|
Acrobat X (Recommended Version)* |
Yes |
Yes |
Yes |
Yes |
Yes |
Yes |
Acrobat 9.0 |
No |
Yes |
Yes |
Yes |
Yes |
Yes |
Acrobat 8.0 |
No |
No |
Yes |
Yes |
Yes |
Yes |
Acrobat 7.0 |
No |
No |
Yes |
Yes |
Yes |
Yes |
Acrobat 6.0 |
No |
No |
No |
Yes |
Yes |
Yes |
Acrobat 5.0 |
No |
No |
No |
No |
Yes |
Yes |
Acrobat 4.0 |
No |
No |
No |
No |
No |
Yes |
Acrobat 3.0 |
No |
No |
No |
No |
No |
Yes |
*Note: in Acrobat X there is no longer an "Acrobat 9 and later" option on the list because the 256-bit AES algorithm used in Acrobat 9 was flawed.
Microsoft Office Document Encryption Guidelines and Compatibility Matrix*
Product Version |
Office 2010 Compatible (The default encryption algorithm is AES 128-bit. AES 192-bit and AES 256-bit are supported) (Recommended Choice) |
Office 2007 Compatible (The default encryption algorithm is AES 128-bit. AES 192-bit and AES 256-bit are supported) |
Office 2003 Compatible (RC4 Encryption) |
Office XP Compatible |
Office 2000 Compatible |
Office 97 Compatible |
|---|---|---|---|---|---|---|
Office for Mac 2011 (Recommended Version) |
Yes |
Yes |
Yes |
Yes |
Yes |
Yes |
Office 2010 (Recommended Version) |
Yes |
Yes |
Yes |
Yes |
Yes |
Yes |
Office for Mac 2008 |
Yes (AES 128-bit only, read-only) |
Yes (AES 128-bit only, read-only) |
Yes |
Yes |
Yes |
Yes |
Office 2007 SP2 |
Yes |
Yes |
Yes |
Yes |
Yes |
Yes |
Office 2003 with Office 2007 SP2 Compatibility Pack |
Yes (AES 128-bit only, recommend for read-only purposes)** |
Yes (AES 128-bit only, recommend for read-only purposes)** |
Yes |
Yes |
Yes |
Yes |
Office 2003 |
No |
No |
Yes |
Yes |
Yes |
Yes |
Office XP |
No |
No |
No |
Yes |
Yes |
Yes |
Office 2000 |
No |
No |
No |
No |
Yes |
Yes |
Office 97 |
No |
No |
No |
No |
No |
Yes |
*Note: Encryption functionality is available on Word, Excel, PowerPoint, and Access. However, not all Office suite products have encryption functionality (e.g. Outlook, Publisher, etc.).
**Note #2: If your organization uses the Microsoft Office Compatibility Pack for Word, Excel, and PowerPoint File Formats to encrypt Open XML Format files, you should review the following information:
- By default, the Compatibility Pack uses the following settings to encrypt Open XML Format files:
- Microsoft Enhanced RSA and AES Cryptographic Provider (Prototype),AES 128,128 (on the Windows XP Professional operating system).
- Microsoft Enhanced RSA and AES Cryptographic Provider,AES 128,128 (on Windows Server 2003 and Windows Vista operating systems).
- Users are not notified that the Compatibility Pack uses these encryption settings.
- The graphical user interface on earlier versions of Office might display incorrect encryption settings for Open XML Format files if the Compatibility Pack is installed.
- Users cannot use the graphical user interface in earlier versions of Office to change the encryption settings for Open XML Format files.
Reference http://technet.microsoft.com/en-us/library/cc179125.aspx