I have an encryption video file divided into two files introduction.encrypt.m4a and introduction.encrypt.mp4. I can not open the file, is there any way to decrypt the file.
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I have .zip and .7zip files (.csv) that are encrypted that I want to read in R without unzipping the data. I know I can open such files if they are not encrypted without unzipping them first, R Reading in a zip data file without unzipping it, but in this case the files are encrypted. Do you know how I can decrypt them and load them into R without unzipping them?
It should be said that I only need a solution for one of the file formats if there is only a solution for one of them.
I have decrypted crypt12 file into .db file. Modified some changes. Now again, Is there a way to encrypt .db file into crypt12 format?
I have created an encrypted disk on my macbookpro. I would like to open an excel file from this drive (I have the password of course) and load it into R. Is this possible? Or do I have to move the file onto, for example, my desktop and then load it into R?
Thank you!
lately, I installed encfs for encryption. and I encrypted files.
as far as I know, there are two directories. first directory is encrypted files stored and second directory is unencrypted files stored (It's original files).
I think the purpose of using encfs is reading or writing files safely using encrypted file(in first directory). I'm wrong..??
So my question is how to read encrypted files. the files are encrypted so I can't read or write files without decryption. How to decrypt files??
I think I don't know principle of encfs.. Anyone can explain this problem??
How EncFS works is well explained here: http://ninjatips.com/encrypt-dropbox-using-encfs/
EncFS uses two directories in mounting an EncFS filesystem: the
“rootdir” and the “mountPoint”. Under the “rootdir” directory, every
file is encrypted including its filename and what’s in it. Each file
in the “mountPoint” has a specific file in the “rootdir” directory
that corresponds to it. The file in the “mountPoint” provides the
unencrypted view of the one in the “rootdir” directory
When you mount an EncFS drive, it creates a virtual encrypted filesystem on your computer and stores encrypted data in the rootdir directory and makes the unencrypted data visible at the mountPoint. You add, read, delete... files in the mountPoint. The actual encrypted files are in "rootdir".
Say I have files encrypted and I open them with a text editor, am I in risk of those files being copied in some temp memory ?
I noticed this sentence in the introduction on truecrypt website
"Note that TrueCrypt never saves any decrypted data to a disk – it only stores them temporarily in RAM (memory). Even when the volume is mounted, data stored in the volume is still encrypted"
But do I understand it correctly ?
If a file stored in a TrueCrypt volume is opened in a text editor (or any application really), the decrypted file is temporarily stored in RAM. Once in RAM, another application could potentially copy the data if it can locate the files contents in memory. The feasibility of this is highly dependent on the operating system you're using though.
Also, the editor you've opened the decrypted file in may save a copy of it to a non-encrypted disk. Once you've opened a file in an application it can do anything it wants with the data, it doesn't matter where the data originally came from or in what form it was stored.
Last, depending on your operating system, the OS itself may leave traces of encrypted files. For example, Windows keeps a list of recently opened files, and while this doesn't leave decrypted file contents lying around, it does reveal the names of any files from the TrueCrypt volume that were opened.