Programming :: Encryption And Decryption Of File?
Jun 24, 2009How to decrypt a file in openssl which is encrypted in perl using crypt cbc
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Programming :: Encryption And Decryption Program In Java And Using RSA Algorithm?
Feb 25, 2011i need a program for Encryption and Decryption using RSA algorithm in JAVA ..
View 9 Replies View RelatedProgramming :: Encryption / Decryption Program - Getting Different Results Every Time
May 9, 2011I am having trouble with encryption/ decryption program. The program goes out and finds the file I want it to, encrypts it into a continuing series of a single repeated negative number, then generally decrypts(or should i say re-encrypts)it into a widely repeated character, different but same results every time.
[Code]....
Ubuntu :: C++ To Java Bitwise Encryption / Decryption?
Dec 21, 2010i'm having issues with my code (i'm kinda new to java).I'm trying to convert a c++ code snippet to java in order to use it in my application.Here's the C++ code
Code:
#ifndef _ENCRYPTOR_H_
#define _ENCRYPTOR_H_
[code]....
Ubuntu Security :: Encrypted Home Folders - Verify That It's Actually Performing The Encryption/decryption?
May 1, 2010I ticked the box for this when I installed Lucid, but how can I verify that it's actually performing the encryption/decryption?
View 4 Replies View RelatedProgramming :: Encryption From C Client To Php Server?
Jan 12, 2010I looking for an algoritm to encrypt some data sent from a c program(client) to a php server(can be in perl or cgi-bin) over the internet. How should i send it in c? Some http call? Or it can be in via a perl script. Then i need some basic algoritm to encrypt it. Any ideas. How do i save the key in the c program? Just something basic so its not clear text. This is not for a bank or visacards etc
View 2 Replies View RelatedProgramming :: Encrypt A Text Using Rsa Encryption Method?
Jul 8, 2010I want to encrypt a text using rsa encryption method. I did it using command openssl but i want it using my library api, the library api is as, int rsa_calc (unsigned char * msg, unsigned char * mod, int count, int exp, unsigned char result); I can't understand how i input public key (.pem file) and what will be the modulus (unsigned char * mod) and exponent (int exp) for any text.Is there any kind of formula to calculate modulus and exponent of the text.
View 2 Replies View RelatedProgramming :: Unusual Encryption Results With Php's Mcrypt?
May 30, 2010I have a simple class that encrypts strings. It seemed to be working fine until I tried to compare the decrypted values to the original. below is the output of the php code. It appears to be decrypted but the length is incorrect.
String Before Encryption: a text string
String Length Before Encryption: 13
String After Encryption: rew2iSYotruIpmJ3llos3A==
[code]...
Programming :: Encryption / Implementing AIDE On Client Machines?
Aug 22, 2010I need to implement AIDE on my client machines. The builds on these machine are different, so each workstation will have its own specific db generated through running AIDE initially. It is not good practice to just leave the db on the machine, since an "attacker" would be able to view this information. However, at the same time I do not want to pull back over 100 different aide db's to the ftp server and have an update pull each specifically every time I need to run the check. The plan is to leave the db on the client machine, but encrypt it (using public/private keys). I need to be able to encrypt the file on the client machine. I will use a cron on the client to pull an update (from my ftp server) that runs AIDE. This update needs to be able to decrypt the file, use it running AIDE, then re-encrypt the file on the client.
View 1 Replies View RelatedProgramming :: C++ GUI Signalling - Encryption System Should Encrypt The Data In The Clipboard
May 30, 2011I'm trying to write a GUI text encryption application. I wrote the encryption system in a No GUI application like this::
[Code]...
Now I'm trying to write a GUI version, using the same algorithm. Here goes a rough image of my main window code. If you scroll down you'll observe a coloured part. As you see, the text in the first textbox gets copied into clipboard. That is the part where my encryption system should encrypt the data in the clipboard, and copy it again, and later on the new data will be pasted. How am I supposed to write that? If I have to use another signal, what is the receiver of that signal?
[Code]...
General :: What Encryption Does The /etc/shadow File Use For Passwords
Nov 26, 2009I 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 RelatedSecurity :: Read Password From AES Encryption From Txt File?
Jan 18, 2011am fiddling around using an AES encrypted password which is stored in passwd.txt:cat ../passwd/passwd.txt
{AES}yTMWTrdbuPtCxikvv5udVDTQ70anBVVKvP+GPQEH1RY=Yet I like to interpret this password on the command line using svn checkout, so I do not have to type in my password ( which is visible on the command line):Exporting the variable SVNPASS reading it from the passwd.txt ( export SVNPASS=`cat <../passwd/passwd.txt`) won't work obviously as it interprets it as "text", so my question is, if there is a proper way to interpret this stored AES password so I can read it from the file?The alternative is to type in the password on the command line, but this needs to be invisible eitehr showing #, * or "hidden".
the last option is described: http://www.tech-recipes.com/rx/278/h...-shell-script/
General :: Text Config File Encryption On System For Security?
Aug 16, 2011I plan to use newsbeuter for console RSS reading.This program has a config text file where I need to store my Google account password,in order to access my Google reader.I don't feel easy at making my password readable to everyone.Is there anyway I can somehow encrypt this information ?
View 1 Replies View RelatedRed Hat / Fedora :: Full Disk Encryption DD - How To Access Data In DD File
Feb 12, 2010I am investigating full disk encryption and have made a DD copy of the hard drive which has been encrypted, this DD file is stored on my computer for analysis.
First question is - Anyone know how i can access data in this DD file even though its been encrypted?
Second question - Is there a DD command where i can image the systems memory? I ask this because when a system is turned on, to get past the pre-boot authentication stage you need a password. From what i understand, this password will be passed in to ram when power is applied to the system. Making a copy of the memory will also copy the password?
Software :: Finding A Portable Encryption Method For Passwords File?
Oct 4, 2009i am wanting to put a list of common passwords on a usb stick, but i want the file to be password protected. I also need to be able to access it from more than one computer (all linux, maybe a mac too).
View 5 Replies View RelatedGeneral :: File Encryption In A Bash Script Without Explicity Providing Password?
Jul 30, 2010I want to automate the following manual process.Currently, I am encryptying a set of files using openssl as follows:Encrypt file.txt to file.out using 256-bit AES in CBC mode $ openssl enc -aes-256-cbc -salt -in file1 -out file1.enI am then prompted for a password, which is then used to encrypt the fileWhen decrypting, I type $ openssl enc -d -aes-256-cbc -infile1.enc -out fileI am then prompted for the password - which again, I manually type.I want to automate this process of en/decryption - so I need to find a way of providing openssh with the password.
My first thought is whether it is possible to read the password from a file (say)? Or is there a better way of doing this?Also, I suppose that I will have to place restriction on who can view the password file - otherwise, that defeats the whole objective of using a password. I am thinking to run the bash script as a specific user, and then give only that user read rights to the contents of that file.Is this the way its done - or is there a better way?Ofcourse all of this leads to yet another question - which is, how to run a bash script as another user - without having to type the user pwd at the terminal.
Ubuntu Security :: Home Decryption With USB Drive?
May 4, 2010I have my home partition encrypted and would like to take the decryption out of the system. Such as when booting the PC it would say it can't find the keys so stop and wait for me to put my usb drive in to continue (reboot and try again). Is there some way to get something like this set up?
View 2 Replies View RelatedSlackware :: LUKS Decryption Fails In Dolphin?
Nov 25, 2010I've just did a fresh Slackware 13.1 install on a 32-bit box for friends of mine. It's an older machine with an AMD Athlon XP 2500. Generally everything works just fine, with one exception, however.Connecting a LUKS encrypted USB harddisk is notified by KDE. Clicking on the device icon in Dolphin opens the dialog asking for the LUKS passphrase. No error message appears, but the file system is not opened and mounted, anyway.However, before another attempt I have to "remove" the device in Dolphin.Output of dmesg:
Code:
# Nov 25 23:58:24 mycomputer kernel: device-mapper: ioctl: unable to remove open device temporary-cryptsetup-3023
[code]....
Fedora Installation :: Custom - Lvm2 Group With Encryption And Have The /boot File Stored Within?
Oct 15, 2009I need to install a lvm2 group with encryption and have the /boot file stored within. Is this possible in Fedora's graphical installer? I know it can be achieved in Arch(I know I'll need grub2, I assume that's coming in Fedora 12) I can always install it separately.
View 6 Replies View RelatedUbuntu :: Error - The Stream Is Encrypted And Decryption Is Not Supported
Nov 16, 2010When I try to watch a video that's encrypted I Get this message
Quote:
The stream is encrypted and decryption is not supported.
What do I need to install to fix this in mplayer? Or can another video player solve this?
Ubuntu :: Bugs In Kontact- Akonadi Errors - Decryption And Toolbar
May 5, 2010akonadi shows errors (self test) on every startup (on different setups and with different errors) that's very annoying, everything seems to work though, so i just want to get rid of that stupid message (why should an average user of kontact solve mysql problems?). decryption of mails is not working, because of a "wrong passphrase" (says so in the mail body). I was never prompted for a passphrase and kgpg decrypts the msg.asc fine, so its a kmail problem!? the spam / ham buttons are invisible. i added them to the toolbar with no effect (meaning, they are still invisible). Removing of other buttons works.
View 1 Replies View RelatedUbuntu Security :: Diffetences Between The WD Hardware Decryption Or A Truecrypt Container/drive?
Jul 20, 2011Now since 1TB 2,5" hard drives have been released and are payable I've thought about buying one. The most improtant issue for me when using a protable drive is security and data security. I found the "Western Digital My Passport Essential" with hardware encryption but the description says that only Windows and MAC operating systems are supported not Linux in anyway. My question is are there any significant diffetences between the WD hardware decryption or a truecrypt container/drive? And is there another program out there better for this job? I want to use the drive on Windows and Linux systems.
View 3 Replies View RelatedSecurity :: Remotely Decrypting A Server - Authenticate A Decryption Mechanism Of Some Sort?
Sep 11, 2010 i need to find a way to securely authenticate a decryption mechanism of some sort where the authentication is provided remotely without any user-interaction. Right now i have a number of boxes that all inform a central server when they are online. When they do this an OpenVPN connection is set up between them and the server.
However, i have been given the task to ensure that the scripts involved in this process are encrypted by default. This requires some form of self-decryption, which to my mind kind of goes against the whole idea of encryption/authentication in the first place. I need some way to leave decrypted the bare essentials required to boot a box and securely connect to the central server automatically. Then the server would automatically send a key/passphrase and the rest of the files on the box would then be decrypted on the fly.
Security :: Acceptable Kerberos Encryption - Error "ktutil: AES256/SHA1*: Encryption Type AES256/SHA1* Not Supported"
Dec 23, 2010I 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.
Ubuntu Multimedia :: Error Message "The Stream Is Encrypted And Decryption Is Not Supported"
Nov 6, 20101. Can I download/use 'Spotify' on Ubuntu as i had an account on my old XP PC? If so how.
2. Some songs that I was able to play on XP don't seem to work on Ubutnu. My downloaded songs do work, however, songs that were burnt via Windows Media player from CD don't. The error message is "The stream is encrypted and decryption is not supported".
3. I have all my songs on an external hard drive connected to my Ubuntu PC. I've heard about Ubuntu one. Does this mean I could move all my songs onto this Ubuntu one account and then be able to access/play these songs from a XP PC upstairs?
Programming :: Socket Programming While Displaying Received Message In File
May 11, 2011i have problem in socket programming, while displaying received message in file,i got a problem... i cant able to write it in the file.... this is the code....
Code:
/* tcpserver.c */
#include <sys/types.h>
#include <sys/socket.h>
#include <netinet/in.h>
#include <arpa/inet.h>
#include <stdio.h>
[Code]....
now my problem is run time error i can able to create file but i cant able to write file....log.txt contain nothing.... as here i have give sample code... dont say not initialising function and all.... i have initialised , please only see func1() - my problem is only not able to write msg which i got received from the client..
Programming :: OpenCV Programming - Highgui.h: No Such File Or Directory?
Jul 1, 2010I installed OpenCV and am trying the example programs. When I try to compile like in the tutorial it is not finding highgui.h.I have 64 bit Mint if that helps at all
View 3 Replies View RelatedProgramming :: Define All Variables In Tcl Programming In A File For Instance Var.cfg?
Apr 27, 2010I can define all variables in tcl programming in a file for instance var.cfgand source the same file in my tcl script such assource var.cfgIs this possible in perl too?
View 3 Replies View RelatedProgramming :: Bash File Comparing - Report How Many Matching Words My Main File ?
Jun 9, 2009I have been messing with diff and grep for 2 days now without result
I am trying to match a file consisting of words to many separate other wordfiles in a specific directory. one by one.
What i want the script to do is to report how many matching words my main file has with every file in the directory, each in turn
setup:
Each of em are plain text files with 1 word per line
Output should be something like:
SCRIPT REPORT:
Programming :: Script To Copy Paste Text From One File To Another (overwriting Part Of The File)?
Apr 19, 2011I have a .txt-file with ~50.000 lines of numbers, generated by a mathematics program. From this file, I need line ~ 1.100 to line ~16.000 (these lines are always the same btw, this may make the solution easier, dunno) to be copy/pasted to another file, where the lines ~500 to ~15.000 (also, every time the same) should be overwritten by the aforementioned lines...I haven't found or come up with anything that works yet, mostly I find solutions to copy everything from one file to another but I can't find something to specifically overwrite a part of a file with part of another.
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