Question: The USA forbids the export of secure cryptography. NSAKEY has already been discovered in the Windows cryptograhic API. Since the Linux-Kernel is hosted in the USA, how secure is its cryptography ?
View 1 Repliesi have found this xor encryption program
Code:
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#define MAX_SIZE 256
[code]....
Its working fine, it can encrypt and decrypt. but how strong is it ? is it all depending on the specified key ?
Password strength in Linux can be ensured by setting parameters in /etc/pam.d/common-password file. But these policies apply only for non-root users, when they set password for themselves.s there any way to ensure strength of passwords assigned by root?Example: Normally root can assign passwords like "hello" "password" etc. Is there a way to ensure that passwords assigned by root must contain a special character and a digit as mandatory?
View 1 Replies View RelatedI am very new to encryption. Right now I am making certs and keys using RSA public-key cryptography. Is RSA the best? What other public-key cryptography <?> is there to use? Is <?> a cipher or algorithm? Whats the difference?
View 2 Replies View RelatedI would like to know if provisions for cryptographic algorithms, especially things like digital signature of packages/applications etc are a native feature of any linux package installer/package manager.
Another question is: Do all linux based systems natively support cryptography? if yes, what engines do they use? Do they all use openssl or do they use high level java based engines like Harmony(Apache) or Bouncy castle?
I have an ubuntu 10.10 and I know openssl support is already provided. However I want to know if any system level program actually uses it or not.
I'm using 3g modem(broadband) for connect to the internet. how can I check signal strength in ubuntu 10.04.
View 2 Replies View RelatedIs there any way to specify the bit strength for LUKS when one is installing OpenSUSE 11.4? I've tried to find it (because imho 256 bit aes is a bit high for what little i do with my netbook) but I have not. I was going to try to control+alt+F4 to a shell and create the partition setup and create the LUKS container and see if that works but in the past, trying that doesn't work either because 1) the installer doesn't ask for the LUKS password or 2) it asks, setup finishes normally, but yet I then get what seems to be random boot errors like some times the /home doesn't mount, sometimes the swap doesn't enable, etc.
Anyone care to give some input? I've been around and around the installer and can't seem to find a way to do it.
I'm using 9.04 on a laptop .when i was useing windows I got strong full bars for the wifi signal strength. On the same laptop in the same location, I get only 2 bars (low) wifi signal strength when I'm in Ubuntu 9.04 I'm using the wifi transceiver built into my hp Anyone heard of this problem?
View 5 Replies View RelatedI am looking for a tool that can monitor my 3g signal.
View 6 Replies View RelatedI managed to connect to the internet using wvdial, however I am getting hardly exciting download speeds around 50 kB/s. I was really hoping to get somewhere around 150 - 300 kB/s. Hence my question: how can I "debug" the connection in Linux, i.e. what is the signal strength and if it managed to connect using 3G or only GSM.
I am using Huawei e272 usb modem (branded Vodafone, I am connecting to Virgin though). My wvdial.conf file:
Code:
[Dialer Defaults]
Phone = *99***1#
Username = user
Password = " "
Stupid Mode = 1
[Code]....
I was wondering whether increasing the strength of a key by increasing the number of bits in the key to 2048 makes any sense if I want to leave the passphrase blank anyway? I'm setting up passwordless ssh logins on my LAN as I'm a bit tired of constantly being asked for a password.
View 7 Replies View RelatedI have a WUSB54GC v.1 wireless USB adapter which I use to connect to my home network. For some reason, over time my reception has been getting worse. I'm not sure if this is due to the router or the adapter. In addition, when the signal strength dips below 50%, I can no longer receive email or browse the web. This is only a problem with Ubuntu - when I had WinXP installed, I could access the internet mostly regardless of the signal strength.
I started a year ago with the adapter plugged directly into the computer. After a while I found it necessary to use an extension cord to place the adapter outside my room, closer to the router. A while later it was time for another extension cord, and now my reception has gotten worse again, but I can't extend it any further.
I see the Wifi Signal Strength icon on the top bar, but where's the label that shows the signal strength percentage? Is there a way to re-enable the label or did Canonical deemed it to be unnecessary?
View 3 Replies View RelatedI've got a Linksys WMP54G Pci card of some kind that's being reported as a Ralink rt2500 pci, but it is very slow (50k/s cap) and has jumpy signal strength (goes between 70% and 10% every second or so, while the router is in the same room). It is just this pc, as I'm using my laptop fine right now with no such condition. I am running basically a fresh version of Slackware 12.2, so it's kernel version 2.6.27.7. I have used this with Slackware 13 and there was absolutely no issue, so I think it may be a wrong or outdated driver, but building kernel modules and updating whatever module it should be is not something that I'm very good at.
View 3 Replies View RelatedSo im pleased that my mobile broadband connection works but unfortunately the gnome/ubuntu way of displaying the connection strength is poor to say the least. Shown in this screenshot is my connection, 4 out of 4 bars.
BUT, does this mean i have a decent signal but only gprs? How do i tell if i have connected with 3G hspda gprs etc....?
What are my options for encrypting the /home directories of my Ubuntu laptops? They are currently setup without any encryption and some have /home as a separate partition whilst others don't. Most of these laptops are single-user standalone laptops which are out on the road a lot.
Is ecryptfs and the encrypted Private directory good enough or are there better, more secure, options? If somebody got hold of the laptop, how easy would it be for them to gain access to the encrypted files?
I have PDF files secured using 256-bit AES, requiring a password to open the file (Acrobat 9 or greater)
I can use Foxit Reader or Adobe Acrobat just fine on Windows, but I can't view those PDF's on Ubuntu or Mac OS X. What PDF readers for OS X and Ubuntu support 256-bit AES?
how to test the AES Encryption in the openSuSE 11.3
View 1 Replies View RelatedCurrently I am wondering whether it is possible to apply asymetric encryption of a directory in Linux.
I would like to achieve the following:
Write log files to /var/log/secret Everything written to /var/log/secret is instantly encrypted by a public RSA key (or something similar)
The encryption programms I know, i.e. ecryptfs do not support asymetric encryption of files, at least as far as I know. (Correct me if I am wrong). Therefore I am asking here whether you know of any possibility to implement this.
I've accidentally encrypted my 8GB usb stick instead of my 4GB stick and now I need to revert the encryption on the 8GB one. There doesn't seem to be an option like this in the TrueCrypt interface when I mount the USB.
View 2 Replies View RelatedI am using dd_rhelp to recover data from a failed 80Gb hard drive with Windows XP and PGP encryption.
My question: How do you mount a drive encrypted with PGP under Windows on a Linux box?
My scenario...
1. I am new to Linux
2. I do not know the PGP passphase
3. I am using Ubuntu and Knoppix
4. I have another 80Gb drive as the target drive
5. Source (bad) drive /dev/sdc1 drive is attached via a SATA-to-USB adapter
6. Target (good) drive /dev/sda1 drive is installed in laptop
My Problem....
Copies data from source to target drive with many errors. When I view the files copied to the target disk they file names are gibberish (extend character sets for file names) with huge file sizes (up to 9Gb).
I plug the target drive into a Windows laptop and it does not recognize it, even though it was formatted as ntfs.
I have been trying to perform a netinstall (of Debian). Will the WPA encryption on my wireless network prevent (or at least make difficult) the netinstall? Will I need to have the WPA password handy or even to temporarily remove the encryption?I haven't actually run into this problem yet; what I was dealing with on the last attempt, before I decided to finish the netinstall later and went back to my working Linux system (I got impatient with being stuck outside it), was that the netinstall couldn't detect my network by DHCP, and wanted me to enter an IP address. I don't suppose that would be any more difficult than going to the host computer and writing down its IP address, but thinking ahead, I wondered whether the WPA encryption would pose another problem.I didn't really think about these issues when deciuding to try a netinstall: whether my internet connection would work. I mean, if it doesn't, trying to netinstall is a waste of time.
View 1 Replies View RelatedI used this password Pass1234 when I search password stored its Nh2yEjhdHIwtY what kind of encryption is used? I thought it was crypt() , but when I create crpypt on my local machine its different.
View 3 Replies View RelatedI connect wireless success
WEP Encryption Key:10chars
Interface Type: 802.11b/g
well now in my windows pcs changed to
WEP Encryption Key:26chars [windows success]
what choices must change in ubuntu 9.10 for the new change?
Can you tell for 26chars WEP, what choices do not try [Not Appropriate], so find the solution for the right choice[selections of the form - WLAN CONN] easier of the remaining? E.g. Do not try "40/128..." but "128 passphrase"...?
Bitlocker is a harddrive encryption data protection tool which comes with Windows Vista Ultimate and 7. Does anyone know an equivalent for Linux distros like Fedora and Ubuntu?
View 3 Replies View RelatedThe only reason why I don't use Linux (even though I prefer Linux over Windows, and can do everything faster and more efficiently) is because each time I try to learn about dm-crypt I give up.
Can someone point me in the right direction for full OTFE on Linux (like TrueCrypt)?
I'm a relative newby to Linux so forgive me if this is a simple question. I know that if you install Ubuntu using the alternate CD, you can create a whole disk encrypted installation, but what about after a normal installation? What is the best procedure to use to get more than just the home folder encryted? Installation of Fedora 13 gives the option during a normal install to encrypt more than just the home folder. I really only want to encrypt my Ubuntu partition. I have a laptop with a multi-boot setup with Windows 7, Fedora 13 and Ubuntu 10.04 all residing in their own partition. Because of this setup I really can't use whole disk encryption. I use Truecrypt on my Windows 7 partition and it works great but encryption of a Linux system partition is not supported.
View 4 Replies View RelatedAm configured SVN on Ubuntu 10.04 ,It's Working fine ;svn access method is svn://ipaddress .In this method am not encrypting the password ,Currently my passwd (/homesvnMyProject/conf )file like that [users]test = testNow i want to Implement the password Encryption for any users, without implementing svn+ssh:// method
View 1 Replies View RelatedI am just wondering what encryption method the shadow file uses, so that I may be able to manually change it. I ask this because I am trying to make a web page that will allow people to change their linux password via a browser.
View 4 Replies View RelatedI am building an active directory and using BIND9 as my DNS. To allow for secure dynamic updates from the domain, I am enabling GSS-TSIG as detailed here and here. Unfortunately, some of the commands and configurations used here seem to be depreciated, at least in the newer versions that I'm using. My issue is one of keytab encryption. I generated a keytab using ktpass.exe on the Windows Server 2008 domain controller. I have tried DES/MD5, AES128/SHA1 and AES256/SHA1, each have been turned down by ktutil on the kerberos server (FreeBSD). Each time, it outputs the following error: ktutil: AES256/SHA1*: encryption type AES256/SHA1* not supported *Respective to encryption used.
I cannot find a list of suitable encryption schemes that ktutil will accept. The FreeBSD handbook details a means of producing a keytab file, but I'm not sure how to configure the Domain Controller to use the keytab.