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 | Encryption compatibility Options | Office 97 | Office 2000 | Office XP | Office 2003 (RC4) | Office 2003 with Office 2007 SP2 Compatibility Pack (AES-128) | Office 2007 Compatible (The default encryption algorithm is AES 128- | 128, but bit. AES 192- | 192 bit and AES 256- | 256 is bit are supported) | Office 2010 (default AES-128, but AES-192 and AES-256 is supported) – Recommended Choice | Product Version | Office 97 | ü | Office 2003 with Office 2007 SP2 Compatibility Pack Compatible (By default, utilizes by default RC4 Encryption, however, AES-128 Encryption is supported) | Office 2003 Compatible (RC4 Encryption) | Office XP Compatible | Office 2000 Compatible | Office 97 Compatible |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Office 2010 (Recommended Version) | Yes | Yes | Yes | Yes | Yes | Yes | Yes | |||||||||||||
Office 2007 SP2 | Yes | Yes | Yes | Yes | Yes | Yes | Yes | Office 2000 | ü | ü | Office XP | ü | ü | ü | Office 2003 | ü | ü | ü | ü | |
Office 2003 with Office 2007 SP2 Compatibility Pack | ü | ü | ü | ü | ü | ü | ü | |||||||||||||
Office 2007 | ü | ü | ü | ü | ü | ü |
| |||||||||||||
Yes (AES 128-bit only)* | Yes (AES 128-bit only)* | Yes | Yes | Yes | Yes | Yes | ||||||||||||||
Office 2003 | No | No | No | Yes | Yes | Yes | Yes | |||||||||||||
Office XP | No | No | No | No | Yes | Yes | Yes | |||||||||||||
Office 2000 | No | No | No | No | No | Yes | Yes | |||||||||||||
Office 97 | No | No | No | No | No | No | Yes | Office 2010 | ü | ü | ü | ü | ü | ü | ü |
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