Tip - Secure Information -. Hiding of encrypted images in a
odt (open document) with Open Office 3.2.1 www.openoffice.org images should first be dealt with there to steghide to hide information, a picture that was edited with steghide the encrypted information includes in addition to the original image (Tip StegHideUI a GUI see for steghide), opens an unauthorized person the document, we see that only a picture and a nice message, the background information remain hidden from the eyes.
steghide (Freeware) steghide.sourceforge.net The images in the 1:1 internal directory of the document name (Pictures) are stored ...
access to the directory can be as small file manager program on the wxCommander or muCommander. Tip - the muCommander wxCommander and is available for Windows and Linux.
wxCommander (Freeware) www.wxcommander.com muCommander (Freeware) www.mucommander.com Info - Does not always provided with a file with a password. Only a write-protect files that can be read easily. In order to decipher the images, recommending I copy this from the document and store separately.
Note - The password in a write protection on the reliability, ensures only the intended read-only and should read the permit, provided that open in Open Office 3.2.1
write the function with artillery and password is selected. If a password is used for document protection the case is somewhat different, in this case, the security of documents previously provided with the proper password removed, then the files can be copied easily.
Open Office 3.2.1 Tools - Safety - Options for joint use of the document - Unprotect Lotus Symphony File - Security - Document Protection (*** delete password save and remove) The pictures take temporary name (eg 100000000000023DE00007490AE12093.jpg) that do not meet the original it is necessary to remember the content and / or deposit a notice with or description of the image in the document or the image itself.
The content is authentic to the original image, will remain that the encrypted information.
Depending on how many images are supplied in the document with encrypted information, Only one thing is mounted inside the document, this step is not necessary.
Attention: send the information to unknown, should be known by OpenOffice users in the metadata stores information that should be removed beforehand.
If the document internally as company and / or private exchange, the step is not absolutely necessary and even authenticate the source, it is to see as well as acting as security for the recipient. The information is available in the meta.xml within the OpenDocument file.
PS: The meta information is also
Tools - Options - OpenOffice.org - User Data influence.
Another tip: Also let hide images behind each other, but with the flaw, which this camouflage of an encrypted file behind a normal image in the document with AbiWord and Lotus behaves Symphony otherwise, the images are still play seen at the level of the Open Document this does not matter (if the file structure as the wxCommander muCommander or is inaccessible), however, if an image with encrypted sensitive information, such as is used behind a photograph of camouflage is to stand as a message of love behind the photo of a piano.
The trick with the encrypted image also works with AbiWord insert simple image and save to open document. A change from the open office, but the file name, here is a file name under Pictures, such as stored f6ed451a-9812-1256-2378-1178cd89ad79 without extension, this must be as subsequently in the image format. jpg unnamed.
