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• why doesnt ubuntu 13.04 prompt me for a password after suspend?

  - by mark

  I am on 13.04 and waking from suspend takes me straight to desktop without a password prompt even though it is set to ask for a password in the brightness and lock settings. Also I recently tried to lock my computer,going to the power menu in the top right corner and hitting lock,it does not do anything,I am still on the desktop..(just tried crtl alt l to lock,it does work) but not the way i did it though,but that is not important to me ,I need the password prompt after suspend.. Password prompts works only when booted from a shutdown...

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• AES Encryption Java Invalid Key length

  - by wuntee

  I am trying to create an AES encryption method, but for some reason I keep getting a 'java.security.InvalidKeyException: Key length not 128/192/256 bits'. Here is the code: public static SecretKey getSecretKey(char[] password, byte[] salt) throws NoSuchAlgorithmException, InvalidKeySpecException{ SecretKeyFactory factory = SecretKeyFactory.getInstance("PBEWithMD5AndDES"); // NOTE: last argument is the key length, and it is 256 KeySpec spec = new PBEKeySpec(password, salt, 1024, 256); SecretKey tmp = factory.generateSecret(spec); SecretKey secret = new SecretKeySpec(tmp.getEncoded(), "AES"); return(secret); } public static byte[] encrypt(char[] password, byte[] salt, String text) throws NoSuchAlgorithmException, InvalidKeySpecException, NoSuchPaddingException, InvalidKeyException, InvalidParameterSpecException, IllegalBlockSizeException, BadPaddingException, UnsupportedEncodingException{ SecretKey secret = getSecretKey(password, salt); Cipher cipher = Cipher.getInstance("AES"); // NOTE: This is where the Exception is being thrown cipher.init(Cipher.ENCRYPT_MODE, secret); byte[] ciphertext = cipher.doFinal(text.getBytes("UTF-8")); return(ciphertext); } Can anyone see what I am doing wrong? I am thinking it may have something to do with the SecretKeyFactory algorithm, but that is the only one I can find that is supported on the end system I am developing against. Any help would be appreciated. Thanks.

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• "Reverse" encryption? - EncFS the other way around?

  - by stwissel

  Currently I'm using EncFS to encrypt my directory "confidential" to ".encconfidential" and sync that encrypted directory using an online service (e.g. Dropbox, UbuntuOne etc). However my entire disk is already LUKS encrypted, so the double encryption takes a toll on performance. I wonder is there an "inverted" EncFS option? An unencrypted directory gets mounted and in the mounted directory you only see encrypted files. So I could work with the unencrypted documents while the sync tool sees and read/writes the encrypted files only.

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• Could someone help me understand SQL TDE Database encryption?

  - by SLC

  I don't quite follow how it works. According to the MSDN Article there is a big hierarchy of keys protecting other keys and passwords. At some point the database is encrypted. You query the database which is encrypted, and it works seamlessly. If you're able to simply connect to the database as normal and not have to worry about any of the encryption from a developer point of view, how exactly is it secure? Surely anyone can simply connect and do select * from x and the data is revealed. Sorry my question is a bit scattered, I am just very confused by the article.

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• What encryption algorithm/package should I use in a betting game?

  - by user299648

  I have a betting type site where I publish a number (between 0-100) that is encrypted. Then after a period of time, I would review what the number is and prove it with a key to decrypt the encrypted number to prove that I'm not cheating. I also want it to be easily verifiable by an average user. What encryption algorithm/technique/package should I use? I'm no expert on cryptography. There seems to be so many options out there and I'm not sure what to use. python friendly is a plus.

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• How can I implement full disk encryption for a disk containing Ubuntu with plausible deniability?

  - by Rupert

  I would like to have a disk that: has Ubuntu installed is fully encrypted is setup in such a way as to make denial of the existence of the Ubuntu install plausible Truecrypt provides the last two features but only for Windows: http://www.truecrypt.org/docs/?s=sys-encryption-supported-os The alternate installer for Ubuntu provides the first two features but not the last. I imagine that plausible deniability would be achieved by, at least: Having two installs of Ubuntu and 2 passphrases (or keyfiles) which would unencrypt each one. Moving any unencrypted data (such as /boot) onto a USB stick Are there any programs out there which support this feature set for Ubuntu?

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• How to enable home directory encryption for a particular user?

  - by Ivan

  I prefer to have a dedicated "administrator" user for technical purposes and that was one I've set up during installation. I've also refused to encrypt the home folder of the user. Now, as I've added a user account for my actual work usage I want my (but not the "administrator") home folder to be encrypted. How to turn this on? If it is not possible then how to enable encryption for all users home directories on a system already installed? I've found questions and answers about how to disable it but am not sure how to enable it.

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• What encryption algorithm/package should I use in a betting game type situation?

  - by user299648

  I have a betting type site where I publish a number (between 0-100) that is encrypted. Then after a period of time, I would review what the number is and prove it with a key to decrypt the encrypted number to prove that I'm not cheating. I also want it to be easily verifiable by an average user. What encryption algorithm/technique/package should I use? I'm no expert on cryptography. There seems to be so many options out there and I'm not sure what to use. python friendly is a plus.

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• How can I do individual file encryption on Dropbox?

  - by Scaine

  I'd like to set a single directory inside Dropbox in which files are encrypted on a file-by-file basis. At the moment, I use a 2Mb Truecrypt container inside my Dropbox which I then have to mount manually, access/change the files within, then unmount manually. At that point, the entire 2Mb uploads to Dropbox. This is a pain for a number of reasons : Dropbox sync will only occur when the Truecrypt container is unmounted, because Dropbox only syncs files that aren't locked and mounting a container locks it. A single byte change to one file inside that container results in the whole 2Mb being uploaded again. It doesn't scale - I was originally using a 10Mb container, but obviously the bigger the container, the longer it takes to sync when it's unmounted. I was wondering if I can somehow use LUKS to implement file-by-file encryption to get round the "container" issues.

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• Google chrome asking for username and password for OWA

  - by Grant

  Hi, i have a question about the google chrome browser. When i navigate to my work's Outlook Web Access site to read my emails, the chrome browser is prompting me for a username and password to the server saying "Authentication Required - the server XXXXXX.XXX:443 requires a username and password. After i put them in i then have to enter in the normal OWA username and password to access my emails as per normal. The funny thing is.. 1] If i click CANCEL on the first dialog it takes me to the OWA screen and i can log in normal anyway. However - subqeuent page clicks will keep prompting me each time for the server credentials. 2] I am NOT prompted for server UN and PW if i use IE or fireFox. Does anyone know how to stop chrome from asking me each time? or is it a server setting - i do know that a friend who uses the same browser (chrome) and also OWA does not have the same problem (NB: they work at a different company) Thanks!

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• Windows Web Server 2008 R2 Server Core local password complexity

  - by Dennis Allen

  How can I disable the local user account password complexity settings on Windows 2008 R2 "Server Core"? I am trying to migrate our windows 2003 web server to windows 2008 R2. I am trying to see if I can use the "Server Core" install, and it has been a very internet search intensive experience. What I can't find out how to do is to find out how to disable password complexity for local user accounts. While our user account generator currently creates nice strong passwords, there was a time when this was not the case and unfortunately forcing the users to change their password is not an option at this time. Any help greatly appreciated. Dennis

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• RAR Password recovery / hash extraction on Mac OS X

  - by Josh K

  I'm running Mac OS X 10.6.2 and have been handed a couple of old files that need to be extracted. Old backups or finances or bills I believe. They are RAR files, and password protected. Is there a way to extract the hash from these files so I can feed it into John The Ripper or Cain and Abel? Edit I have downloaded cRARk, but unfortunately nothing I have (SimplyRAR, RAR Expander, The Unarchiver) will extract it without a password. Can someone verify that I'm crazy and there is no password on the Mac version?

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• RAR Password recovery / hash extraction on OS X

  - by Josh K

  I'm running 10.6.2 and have been handed a couple of old files that need to be extracted. Old backups or finances or bills I believe. They are RAR files, and password protected. Is there a way to extract the hash from these files so I can feed it into John The Ripper or Cain and Abel? Edit I have downloaded cRARk, but unfortunately nothing I have (SimplyRAR, RAR Expander, The Unarchiver) will extract it without a password. Can someone verify that I'm crazy and there is no password on the Mac version?

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• Setting Password for phpMyAdmin

  - by anitha

  am using rhel 5 and php 5 with mysql 5. My server is already configured and running all applications smoothly. I am accessing mysql as root and password is 'anitha123'. but when i am accessing phpmyadmin through browser, it is not asking for password. Somebody please tell me how can i set it like prompting for username ans password. Since i am not familiar with php mysql please tell me how to do it in simple way. thanks and regards a anitha

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• Dialog box keeps asking for password

  - by hossam-khalili

  I am running Windows 7, Outlook 2007 (Office 2007 pro) and I'm connecting to our Exchange Server 2007 which is part of Small Business Server 2008. Outlook 2007 on one client keeps asking for the password to the remote access URL. If I simply click cancel it's OK for a few minutes. Entering the password and clicking the save PW box does no good. Sometimes clicking cancel results in another dilog box asking the same thing and I may have to click cancel several times to get it to go away for a while. Occasionally Outlook may actually go into a mode where it says it needs the password typed so I click the link which brings the dialog back but simply clicking cancel will make Outlook connect again. Can anyone help me? Thanks!

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• USB key to pass password in Centos 6

  - by Andrew

  I had a room mate that put a livecd in my desktop and looked around on my machine. I caught him in the act and threw him out. I haven't had a room mate for a while now and so as to avoid the livecd issue again I encrypted the hard drive, the machine is running centos 6.3. Is there anyway that I can avoid typing the password in each time if I have usb key in the machine to feed the password to the system? Additional question. Is there anything you can suggest to solve the problem I have ? Thanks

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• unwanted password prompt pops up on web server?

  - by Paul

  my web server randomly asks for a password as though basic authentication is turned on. It's an IIS 7 web server and you have to specifically install basic authentication in the roles section. It isn't installed. The message that pops up is "Warning: This server is requesting that your username and password be sent in an insecure manner (basic authentication without a secure connection)" I cannot reproduce the problem but a number of customers have reported the problem and it only seems to appear to a small number of customers. It pops up when they visit the homepage, nothing is generated by the IIS logs to indicate a password box is being served (e.g. no 401 errors etc) Can anyone offer any advice? Thanks

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• How to reset password for Dell PowerConnect 2708?

  - by oherrala

  I do as the user manual says and press "Managed Mode" button to get into unmanaged mode and then press "Managed Mode" button again for managed mode. This should reset the device to factory defaults and username "Admin" with no password. However, the device resets (I think) and I can access the web console from IP 192.168.2.1, but the username and password doesn't work. Maybe the device doesn't reset after all. Or the username/password has been changed in some firmware upgrade? What should I do to get into management of this switch?

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• web (server) based password manager

  - by laurens

  Hi all! I know there have been a few topics here about password managers but I read them all and did not really find what I'm looking for. What I'd need is a free or cheap (most password mgr software is $500 for 20+ users, exaggerated!) multi-user password manager, highly preferable web-based so that we can host it on one of our local server, of Hyper-V VM's. So: -free or cheap ( <100$) -multi-user of groups -web based -not very hard to install I tried a few, one very expensive, one I did not get to work- Web Keepass Manager This works with tomcat and probably conflicts with our IIS 7.0 or 7.5 PS: thus, nothing online (!) it has to stay local Thanks in advance!

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• Can't connect back to the wireless network after the password was changed

  - by 7777

  Family changed the network password and some other network settings after new computers were brought into the house because apparently they wouldn't work with what we had. Actually an off-site tech remotely changed it, and I have no idea what he did. My laptop detects the network (it shows up under available networks) but whenever I try to connect it says: Windows is unable to connect to the selected network. The network may no longer be in range. Please refresh the list of available networks, and try to connect again. I wish I could give more details, config settings, but frankly I have no idea what I'm looking for. This is XP (also, not a password issue, I know the password, it's just that I have no idea where to enter it, etc.)

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• Setup Apache Password Protection

  - by Jiew Meng

  I have some difficulties setting up password protection in Apache In .htaccess, I have AuthUserFile /var/www/vhosts/domain.net/httpdocs/.htpasswd AuthGroupFile /dev/null AuthName "Test Server" AuthType Basic require user testuser Then in .htpasswd, I have something like testuser:encrypted password The problem now is I forgot what .htpasswd generator I used. When I try to add a new user and password, it doesn't work. eg. when I put require user newuser it fails always (prompt keeps reappearing). Then when I revert to testuser it works How can I setup such that I have 1 or some "admins" that can access everything and viewers that can view only specific folders ... eg / - only admins /folder1 - only admins or folder1's users /folder2 - only admins or folder2's users Also what do I do to not allow showing of directory listing

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• Our server hosting provider asked for our root password

  - by Andreas Larsson

  I work at a company that develops and hosts a small business critical system. We have an "Elastic cloud server" from a professional hosting provider. I recently got an email from them saying that they've had some problems with their backup solution and that they needed to install a new kernel. And they wanted us to send them the root password so they could do this work. I know that the email came from them. It's not [email protected] or anything like that. I called them and asked them about this, and they were like "yep, we need the password to do this". It just seems odd to send the root password over email like this. Do I have any reason to be concerned?

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• Encrypting a single File with password and keyfile

  - by Ctroy

  I am a fan of True Crypt and I guess it's the best encryption tool available. As far as I understand, True Crypt created encrypted containers which acts a place to store files. But I would like to encrypt a single file. Preferably with a password and a special key file (like in truecrypt). It would be great (but not mandatory), if the file doesn't require any third party software to encrypt and decrypt, in the sense that I provide the password and key to the file directly. Thanks in advance.

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• AD password not synchronising properly

  - by Kaczmar

  I have 600+ users in AD, but only one causes me trouble. The problem is I can reset his password from AD, he can then log in to his machine. After that he would like to change his password from Windows 7, and proceeds without errors. Logs out or locks the workstation but cannot access it again using either old or new password. So I have to reset it again and he can only use the one I provide for him. All our machines are in the same physical location in the same subnet. Functional level is 2003. I'm totally out of ideas. I could create him new user account, but I'd possibly like to know what causes this. I can only suspect some sort of synchronisation problems but other accounts work fine, and I don't know how to dig deeper into this. Thanks, Piotr

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• Lost Linux root password - Recovery mode and init=/bin/bash fail

  - by Albeit

  I lost/forgot the root password to a server sitting beside me and am trying to reset it. I would rather not have to wipe and re-install or use a Live CD (server is running Ubuntu Server 12.04). What I've tried so far... 1) Boot into "Recovery mode" from Grub2 boot menu then drop into root shell prompt. I am prompted to "Give root password for maintenance". No-go. 2) Change the boot parameters for the main boot option to include "rw" and "init=/bin/bash". When I then boot with Ctrl-X, the screen goes black, and nothing happens (I've waited five minutes). init=/bin/sh and init=/bin/static-sh both do the same thing, while init=/sbin/init boots as normal. Is there anything else I can try to reset the root password? Thank you!

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