Encrypted (password protected) documents
An archive of encrypted documents is provided:
Calligra file:
Files were created with:
- OpenOffice.org 3.3
- Apache OpenOffice 3.4
- LibreOffice 3.5.1
- Symphony 3.01
Each is a trivial “Hello world!” text document. The password for each document is “password” (no quotes).
Looking at the markup used by these editors in their default output options, we see the following encryption settings declared:
| Manifest: | OOO 3.3 | AOO 3.4 | LO 3.5.1 | Symphony 3.01 | Calligra-2.4 |
| checksum-type | SHA1/1K | SHA1/1K | urn:oasis:names:tc:opendocument:xmlns:manifest:1.0#sha256-1k | SHA1/1K | |
| algorithm-name | Blowfish CFB | Blowfish CFB | http://www.w3.org/2001/04/xmlenc#aes256-cbc | Blowfish CFB | |
| key-derivation-name | PBKDF2 | PBKDF2 | PBKDF2 | ||
| key-size | 16 | 16 | 32 | ||
| iteration-count | 1024 | 1024 | 1024 | 1024 | |
| start-key-generation-name | SHA1 | SHA1 | http://www.w3.org/2000/09/xmldsig#sha256 | ||
| key-size | 20 | 20 | 32 | ||
| AOO 3.4 | Y | Y | Y | Y | |
| LO 3.5.1 | |||||
| Calligra | N | Y | cksum err | Y | Y |
| Symphony 3.0.1 | |||||
| LO 3.5.2.2 | Y | Y | Y | Y | |
| EuroOffice 2011 | Y | Y | Read error | Y | |
| EuroOffice 2010 | Y | Y | Read error | Y |
Note in particular that the AES is new to ODF 1.2, where it is recommended over the legacy Blowfish from ODF 1.0 and ODF 1.1.
The interop challenge here is two-fold:
- Is your current editor able to process documents written in these variations?
- Are earlier versions of your editor able to process these documents
Abiword 2.8.6 can open encrypt-ooo-33.odt, encrypt-symphony-301.odt, encrypt-aoo-34.odt. It cannot open encrypt-lo-351.odt.
ODT Export
