Ubuntu Security :: How To Encrypt Emails
Mar 14, 2010Im using gmail with https always turned on but what programs can i use to easily encrypt emails? Is pretty good privacy easy to use?
View 9 RepliesIm using gmail with https always turned on but what programs can i use to easily encrypt emails? Is pretty good privacy easy to use?
View 9 RepliesI am looking to be able to encrypt using OpenPGP certain outgoing emails on my linux server. Currently I have GPG setup with a public key, however encryption outgoing emails prooved to be harded.After a bit of research I have found GNU Anubis which acts as a middlemad between the MUA and the MTA, by encrypting emails before they reach my MTA (Sendmail)However I am having a bit of problem with the configuration of bind and remote-mta, as specified by anubis.I have the sendmail service running on port 25 and I want to leave it there, but I have configured my php.ini SMTP port to 24. So it runs through port 24 first and anubis then forwards the emails via remote-mta to port 25Here are my anubis configs:
bind localhost:24
local-mta /path/to/my/sendmail
remote-mta localhost:25
With all those set, I can't seem to get the basic modication of emails to work. (trying to change a certain subject to something else, just to see that anubis is working). However emails are still working with port 24 as the SMTP port.
I'm currently writing a simple script which uses luckyBackup to backup my /home directory to /tmp. I then want to tar it, encrypt it with gpg and move it onto a usb stick. My question is that suppose my hard disk died and I needed to restore from this USB backup, would I still be able to decrypt the file given that I would have lost gpg keys etc when the disk died? (I would still know the passphrase though). Should I be backing up gpg files separately?
View 9 Replies View RelatedI have a ext hdd..seagate go. And my 14 yr old son likes to get into it without asking me; of course i dont care when he asks but i don't really want him to get in there and erase anything. I am about to leave for training for 18 weeks with the military. Is there a way i can "secure" the drive for the amount of time that I can't take it with me?
View 8 Replies View RelatedI loaded Ubuntu desktop onto my flash drive with the USB Installer For Ubuntu from [url]
I'll be placing sensitive data on the drive & need to figure out how to encrypt it. From what i've read so far, the easiest way will be to encrypt the swap, /home, tmp, temp files. Not quite sure how to do this. I'd prefer to encrypt the whole drive, but this seems quite complicated.
I already have Ubuntu 9.10 on my system and don't want to have to reinstall all my programs after a clean install. I want to encrypt my hard drive so it will boot and ask for a password. Does anyone know if this is possible?
View 3 Replies View RelatedI'm using lucid desktop edition, and I need to encrypt my home folder, but I didn't mark that option in the fresh instalation of lucid. I'd like the login screen to ask for the password and then decrypt my files.Is it possible to do without erasing my user?
View 2 Replies View RelatedI'm looking for software to encrypt my entire S.O. It's something like nobody can erase the hard drive or can't trying to hack. I'm using Ubuntu Server x64.
View 1 Replies View RelatedI'm trying to think of the best way to encrypt a partition on my flash drive.
I plan on storing ssh/pgp keys on it for use on different computers (including school computers, where I won't have administrative access).
TrueCrypt is going to require admin access to decrypt and mount the partition, I think, so that's out.
Are there any other methods you all would recommend?
I know Pidgin store chat log in plain text or HTML format.Is there any plugin for pidgin to encrypt the chat log while logging it?Similar to Windows version of MSN Messenger free application called MSNPlus! that contains this feature to encrypt chat log.
View 2 Replies View RelatedI just found a neat way to encrypt a file in Ubuntu 10.04.
I right click on a file and select the Encrypt option. The program prompts me to "Choose Recipient" so I choose myself on the list. Then it prompts me to enter my passphrase.
Once all that's done I hit enter and it adds .pgp to the end of whatever file just encrypted. The same basic method is used to Sign the file.
Does it sound as though what I said is correct and that the file I wanted to encrypt was indeed encrypted?
Can anyone crack my files without the passphrase? I'm sure it depends on the complexity and length of the passphrase.
We have some script files on our linux servers. For security purpose our requirement is to keep these files encrypted . I mean when we open the files it will looks like as for example i am showing you one encripted file of iur server. how can i do this.
one encrypted files from our server:-
[utibaadm@AIRTELVTUD2_UVAS01server_monitoring]$cat SOUTH_DTH_MONITOR.sh
#!/bin/sh
skip=14
tmpdir=`/bin/mktemp -d ${TMPDIR:-/tmp}/gzexe.XXXXXXXXXX` || exit 1
prog="${tmpdir}/`echo "$0" | sed 's|^.*/||'`"
[Code].....
I have just installed Ubuntu Jaunty (I do not like Karmic, please don't try to make me upgrade) and after installing all my programs I realized I did not encrypt my home directory.
I know it's very simple to do this during the installation but I can't seem to find an option to do it after it.
Is there a way to do this?
Is there a way to encrypt your swap partition after installation?
View 3 Replies View RelatedI recently installed Ubuntu Linux and did not encrypt the home directory during the install. Now I want to encrypt my home directory, or even better the whole hard drive.
View 2 Replies View RelatedFolks: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 RelatedI recently upgraded to Ubuntu 10.04. I love the passwords and keys application, but was somewhat surprised at the lack of a context menu in gnome to encrypt a file.
In general, I cannot find how to encrypt files using the keys I generate. Maybe I'm missing something? Probably, I just thought since Ubuntu comes with OOB key generation it would have OOB encryption capabilities.
I've read about seahorse and other ways to ADD encryption, I'm just wondering if ubuntu does it natively. It'd be a good idea to add to brainstorms, right click and encrypt.
So what I want to do is encrypt my entire hard drive, but heres the thing.
I dual boot Ubuntu and windows 7, but I am afraid that if I use truecrypt to do the encrypting that it will wipe GRUB and not allow me to boot into any OS, is that a possibility and is there a way around it?
How would You encrypt Passwords [emails,forums,accounts] onto USB Flash the most Secure way? (It should be command line so I can use any Linux distribution on it.) Is gpg -c <filename> secure enough ? And what FAST distro would you install on it? I'm learning on old USB flash and found SliTaz pretty damn cool,I use it as a LiveUSB. Also I've tried Kubuntu but it's bit slow. Going to try Lubuntu soon too. Any other idea?
And I'd like to install some FAST distro onto new 8GB mini USB flash drive,maybe Kubuntu as well. How would you partition its Flash drive? Probably separate partition for stored encrypted files?
I just tried out setting a master password for Firefox saved passwords and compared the old and new (before and after setting the master password) signons.sqlite files. Although passwords were not stored in plain text in either of the files, I did notice that the files were exactly the same. Am I wrong in assuming that setting the master password did not encrypt anything at all, or am I simply looking at the wrong file?
View 9 Replies View RelatedI'm using Ubuntu 10.04 64-bit. I created a PGP key pair using Applications|Accessories|Passwords and Encryption Keys. I used DSA El Gamal as the encryption type and a key strength of 2048 bits. However; when I right click on a file or folder I don't see the Encyrpt... and Sign options.
View 4 Replies View RelatedIs there a way to encrypt existing home directories in lucid so that they will unlock with pam-encfs when the user logs in? Or must you do this when the directory is created?
View 1 Replies View RelatedIt says on the dropbox site that files are stored encrypted on their servers-but can anyone vouch for this?
Is there something in the repos i can use to encrypt the files before i upload them to dropbox? Annoying that truecrypt cant do this...
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.
Is the encrypt system during the install part of the SE Linux or is a whole other thing and another question maybe a sounding a little conspiracy but SE linux is made by the NSA can I trust SE linux and it not be a backdoor to my stuff
View 4 Replies View Relateddoes anyone know the best way to encrypt an entire HD with both Fedora and Windows 7 on it already? At the very least I would want to encrypt the Linux partition, as that has the most sensitive stuff on it.
View 10 Replies View RelatedIs it better to use:
Code: -c aes-cbc-essiv -y -s 512 Or:
Code: -c aes-xts-plain -y -s 512
I've never encrypted a disk before; I'm following the Arch wiki (I'm a newbie, basically). Should I try and encrypt my swap partition (I've got 512 MB RAM, 1 GB swap)? Ideally, I'd like to make it so it's not feasible for someone (even a very skilled someone) to access my files (and system -- I'm encrypting /), but still make it fairly fast and usable for day-to-day operations. If it matters any, I'm using JFS.
I have a script that crond runs each night. The script pulls some sensitive files from an SFTP server and stores them in a folder on the local machine.I need to encrypt those files on the filesystem. Ideally, I could encrypt the folder they're stored in to require a password whenever the files are accessed. The problem is that then crond wouldn't be able to access the files. Using something like ecryptfs would allow the cron script to mount the encrypted storage by supplying the password, but now the keys to the kingdom are just sitting in a cron shell script.
Is there a good way to approach this? One thought I had was finding a tool that lets cron encrypt the files using a public key, then require a password to decrypt them (silently using the password to access the related private key)I don't want too much complexity on the decryption side, because I will have relatively non-tech people needing to access those files occasionally.
I am using auth_param basic program /usr/lib/squid/squid_ldap_auth to authenticate users using squid from ldap. The user and pass is in clear text over the network between the browser and the squid server. Any way to send it in an encrypted format??
View 2 Replies View RelatedI 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 Related