I need to be able to decrypt data, like simple text files, that have been encrypted and base64 encoded with my public key.I need to use openssl so i do:
Code:
$cat encrypted | openssl enc -base64 -d > ./answer.txt
and i get exactly the same data as before the command was run. Am i right in thinking that i need to decode before decrypting? I tried decrypting, before i realized that i had to decode first,using this command:
[Code]...
Can I decrypt an encrypted drive without loss of data?
View 13 Replies View Relatedi have a encrypted file using .aes256. I'm trying to decrypt but it fails. This is the command i used
Quote: openssl enc -d -aes256 -in insurance.aes256 > /media/DATA/out.dec And here's the error:Quote: enter aes-256-cbc decryption password: bad decrypt13930:error:06065064:digital envelope routines:EVP_DecryptFinal_ex:bad decrypt:evp_enc.c:330:
lets say I install Ubuntu 10.10 on my laptop. I check the box that says encrypt my home directory, and my password is a randomly generated 10 character password using uppercase and lowercase letters and numbers. The next day my laptop gets stolen or something. How hard would it be for someone to decrypt the home directory if that were the goal?
View 5 Replies View RelatedI'm trying to setup vi to automatically encrypt/decrypt .pgp and .asc files. The encryption part works. If I "vi testfile.gpg" it will auto encrypt it on save.
However when I try and vi the encrypted file it does not prompt me for my pass phrase. I just get this:
Quote:
Here's what I have in my ~/.vimrc file.
Quote:
This is on gentoo linux if it makes any difference.
I was wondering if any free, small, portable, cross platform programme exists for encrypting/decrpyitng simple txt files?
I know a couple of small ones for windows systems (nosee, dscrypt) but i wonder if there is any i could use on both linux and windows OS. the idea is to be able to carry it on USB key and the programme (or probably there will have to be 2 versions of it) would run either on windows or linux os and i could decrypt and encrypt the file if i needed to. no matter on what system i plug the USB key to.
I want to be able to encrypt files on my netbook with Ubuntu 9.04 UNR and on my MacBook (Mac OS 10.6.2) and be able to exchange them and decrypt them on the other platform.The Ubuntu command Edit>Encrypt is so easy to use but works only on the netbook. I haven't, thus far, found a program to open them on the Mac or to create an encrypted file on the Mac that I can open on the netbook.
View 3 Replies View RelatedIs there a way for my home folder to not be automatically mounted when i log in? And for that matter a way to change the password from my log in password to something else?
View 2 Replies View RelatedI have a seperate partition for my "/home" folder. Whenever I install a new distro I format my "/" folder.
This way I was able to access my old home data files since I install using a different username. Everything worked fine until last Sunday.
10.10, unlike other versions of ubuntu, has encrypted my old username in my home folder.
Then using this document [url]
I was able to mount my hard drive again. But all the file and folder names are like this.
Btw I don't remember selecting an option to encrypt my old home directory in the first place, what is this ?
When I am installing texlive package power gone suddenly. From that time onwards yum update command is not working. It is giving error as follows:
Loaded plugins: presto, refresh-packagekit, security [URL]: [Errno 14] HTTP Error 404 : [URL]
Trying other mirror.
Skipping security plugin, no data
Setting up Update Process
Resolving Dependencies
Skipping security plugin, no data
--> Running transaction check
--> Processing Dependency: libkpathsea.so.4 for package: evince-dvi-2.30.3-1.fc13.i686
---> Package texlive-kpathsea-doc.noarch 0:2010-8.svn19287.fc13 set to be updated
--> Finished Dependency Resolution
Error: Package: evince-dvi-2.30.3-1.fc13.i686 (@updates)
Requires: libkpathsea.so.4
Removing: kpathsea-2007-51.fc13.i686 (@updates)
Available: kpathsea-2007-49.fc13.i686 (fedora)
You could try using --skip-broken to work around the problem
You could try running: rpm -Va --nofiles --nodigest
I already tried this commands but again I have problem:
yum-complete-transaction first
rpm -e texlive
yum install libkpathsea.so.4
I recently installed 32bit maverick and wanted to make it login automatically. I tried enabling auto login from Admin > Login but that didnt work and I was still prompted for my password. Then I went to Users & Groups and changed the password option to Do Not ask for password at login now after I reboot, the user list is shown (only 1 user) and it doesnt ask for password after I click on my username.
However, then it gives a few errors (as i vaguely recall):
1. cannot load .ICE directory in my home directory
2. some error 256 about a gconf-sanity-2 file
3. nautilus cannot load my home directory etc
and then it gets stuck without loading anything (blank wallpaper). i ve tried navigating to my home directory using Alt F2, gksudo nautilus and my home dir contents are encrypted by the ecryptfs (there is a readme.txt file and a shortcut). i have tried to decrypt but it doesnt work... i ve also tried to start/stop gdm, and startx but nothing works. if i stop gdm, then the prompt doesnt recognize my password and keeps on rejecting the commands i enter... I think this has something to do with the home dir not being decrypted due to the dont ask for paswd option... how can i disable the dont ask for pwd without the gui (i can access my / by booting through an external usb).
I'm running Apache2 under uBuntu 9.10. My problem is that I use my own user "wavesailor" to work on my websites. I kept all my sites under /var/www and I set up the security of the directory after following the guidelines.
Code:
sudo chown -R root:root /var/www
sudo chown -R www-data:www-data /var/www/*
[code]...
I've got a samba share on a linux server, connecting to it with a windows 2k3 server via tools > map network drive. The goal is to be able to use windows to change the security of the samba share. The good news is it works! The bad news is it's not QUITE perfect:
The share is called /company. I started with the following to give everyone access to everything, set the owner of the share to administrator (my domain admin on the Windows domain), and set the group owner to domain users (group that everyone on the domain is part of):
Code:
chmod -R 777 /company
chown -R administrator /company
chgrp -R domain users /company
I then mapped the drive as a regular user, and of course, can access/modify/delete/rename/create anything I want. Then I picked a folder to lock down. Let's call it /company/myFolder. I did this on the Windows server by mapping the drive as administrator (the owner), right click > properties > security tab > advanced > highlight "domain users" and "everyone" and click edit > clear all (i.e. remove all access). Go back to Linux and
[Code]..
The only issue that remains is that I am able to rename/delete "myFolder" as a regular user. I thought this was coming from the "acl map full control = true" parameter in smb.conf, but I changed it to false and verified the change and it still happens. If I remove group and world write access to /company, I am no longer allowed to rename/delete myFolder, but then I can't create a new folder. If I add group write access back in I can create files but can also rename/delete folders within /company that have --- specified for group access. Any ideas what I need to tweak to make this right?
A friend has a embedded system (korg recorder) with a ata drive in it, that crashed. We are trying to come up with ways to retrieve the data off of the drive. I'm asking in security as this seems like it would be close to forensics, hence security. Hints on software for linux to help either recover files, move files, copy/clone the drive? I'm not so concerned about the korg's os on the drive, as we can create a new blank drive and install that, its the data that is critical, that needs to be recovered. The original korg os was only recognizing drives up to 100gbs so I'm guessing this might be a fat16 filesystem if that helps. Well, that and the program installed to the drive to run it in the korg is an exe.
View 2 Replies View RelatedI'm having trouble decrypting a GNU key from LaunchPad.I have followed what the doc's say about it but it doesn't work for me.My Thunderbird can't read it also. I have used the plug-in but I have hotmail.
View 1 Replies View RelatedFor example would a website log the mac address of my ethernet adapter and my computer name?
View 4 Replies View RelatedFor those with IT jobs, how do you handle security monitoring for your company?
1.How do you determine what to monitor-- The most vulnerable assets, most critical or something else?
2.What kind of data do you collect for security monitoring purposes?
3.What tools and techniques do you use to analyze the data?
Is LUKS the best data/system encryption? Or is there one that is even better and stronger?
View 1 Replies View Relatedhave around 20-30 HP and Dell Hardware where we have attached Pen Drive. There is no Rack-lock facility. A misuse of Pen Drive is reported and it happens every alternative day that someone unplug and theft the drive attached.There is no camera facility to monitor.I have a plan to write a script which will login to every machine through ILO and watch the USB availability. In case anyone dettach the USB, a mail will be sent to the administrator and thereby the steps could be taken.Does this idea look feasible.
View 13 Replies View RelatedI am trying to decrypt wmv files in Ubuntu. I have installed the w32codecs and I am able to decrypt dvds. I also have access to medibuntu, but I cannot tell which package(s) at that repository are helpful (if any). The tunebite converter only appears to work on Windows.
View 5 Replies View RelatedI am currently trying to turn off ordered data mode for ext3 filesystem. I want to shred some files and apparently this won't work with journaling on.
I can't seem to find any good explanations of what exactly "ordered data" means in terms of data recovery/security...or at least none that are written in simple n00b terms. It is all written in terms of disk crashes and whether old data will mix in with the new. It doesn't say whether one's cousin will be able to poke around and find some thought-it-was-deleted porno if he's on the computer.
Can someone step me through the process of turning this off using tune2fs? (if that is the best way to do it!) Do I have to revert to ext2? Can I turn it back on later? Will I lose data (for example, does the drive need to be reformated?) once this change is made? And how does one find, read, and delete/shred the journal itself? Is "ordered data" even a real problem for data recovery?
Folks:What can I use to encrypt all data on my USB flash drive? If possible, could I use something that has a public Key, so I do not have to type in a password to access the information when I plug the drive into my machie, but will not open or display contant if the drive is plugged into anyone else's machine, unless they have the public key?
View 7 Replies View RelatedDoes anyone know of any software that can monitor the Apache logs for certain phrases or keywords then send an alert when found? For example I know an attempt to hack has been made when I see log entries like this....
/admin/
/admin/phpadmin/
/phpadmin/
But by the time I see it, the attempt has long since failed or succeeded. What I need is a way for my server to alert me WHILE someone is entering these phrases. I realize there may be a "hit" to performance but my server is not that busy anyway (except for hackers).
i was thinking that is there a way to check data flow for viruses? i mean if i set up calm av in my internet sharing server could it detect anything in incoming and outgoing data ?!!
View 2 Replies View RelatedI have a windows install that is totally hosed, bluescreens, etc. I want to try to force mount it from Ubuntu to get whatever data I can, but it won't allow me to mount. It keeps telling me to run chkdsk /f and reboot twice. But that's not possible. I was wondering if there are any ntfs tools for Ubuntu or any data recovery tools I can use to get what I can from this drive.
View 3 Replies View RelatedI have a friend that has a computer running UBUNTU he has not used in a while and has forgotten the user name and password for it. Is there away to retrieve the data from this hard drive?
View 2 Replies View RelatedAs I'm interested in user-behaviour-information-security I would like to know what I�ll have to turn off or to uninstall to make the ubuntu-pc-usage as anonymous as possible (no musicbrainz, cddb, or alike).I want ubuntu not to send any data to third-party-users.
View 6 Replies View RelatedI had a student, and she has done some work on her account on my lab computer, but has left the country and is un-contactable.
I have full administrator privileges for this machine, and it is running Ubuntu LTS 10.04
She has a folder which was copied from a windows formatted external hard drive (Probably NTFS) onto her home partition on my machine.
I can open all of her files, except for those in this folder.
As I see it the problem is either something to do with the permissions of the files (coming from NTFS), or some kind of Ubuntu security that I am unaware of?
Here are my attempts to open it code...
I have a server A that needs to connect to another server (B) to transfer data everyday.[A] ==SFTP==> [B]
I am using SFTP for the data transfert between A and B. I configured B to allow authentication only with a key, not with password. However, anybody who acccess the filesystem of A, could steal the password.
So I thought I could password protect the private key from A. But in such a case, I need to store the password somewhere on A, so the server A can access the private key to connect to B. Finally, it is endless: i always have to store somewhere a secret on A. Is there another solution that allow to have an authentication between A and B without storing plain text secret on the server A ?
I'm running a program called Synergy+ to let my keyboard and mouse control multiple computers. One of Synergy+'s features is that clipboard (copy-paste) data is able to be shared, as in copy on one machine, paste onto another. I would like this functionality removed but Synergy+ has no way to disable it. I'm looking for any ideas to block clipboard data from being transferred. Is there a way to block a program from accessing the machine's clipboard data?
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