Security :: Generating A Key Compatible With PGP?
Jun 24, 2010
I am currently using [URL] to send and receive faxes at work. I need the faxes to be encrypted. They offer public key encryption with PGP 9.8.2 They just need my public key to be compatible with their PGP version. I found a few statements at the GPG site, which may not be true for newer versions of gpg: PGP, Inc. refuses to accept Elgamal keys of type 20 even for encryption.They only support type 16.PGP 5.x does not accept v4 signatures for data material but OpenPGP requests generation of v4 signatures for all kind of data, that's why GnuPG defaults to them. By default, GnuPG encrypts your secret key using the Blowfish symmetric algorithm. Older PGPs will only understand 3DES, CAST5, or IDEA symmetric algorithms. PGP doesn't do Elgamal signing keys at all, so they are not usable with any version. I attempt to avoid using trial and error here, because an incompatible key may provoke loss of crucial information. It is difficult to estimate how long it would take them/me to find out that the key provided was not compatible; but probably it would entail a significant loss for the business.
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Jul 3, 2009
I've been trying to write php or perl code to generate the sha-512 password hashes in fedora. I've been unable to do the hashing which is encoded in the shadow file on fedora core 11. Does anyone have php or perl code which provides the hashing algorithm. (All of my attempts result in the encrypted hashing being longer than 86 character -- the length that crypt says the sha-512 should be)
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May 10, 2011
Is there a guide somewhere that covers all the security module topics for Linux, somewhat from top to bottom. Such as LDAP TLS RSA secure auth... generating certs etc etc. All of it and how it all ties together. Sure I can find you should use this etc., or guides that don't explain much or how they work together to complete the sweet. TLD seems to suffer from the same thing that I just stated...
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Jul 18, 2010
i just got a new internet connection from the local service provider. While installation, he insisted that i use my mobile number as the wpa password for the wifi. From what Ive heard, this is company policy. Im a little skeptical about this as ive read wpa is crackable using a dictionary if the password is in there. So i looked around and found the air-crack suite to test the security for my access point. As my password is only numeric, i couldn't find only a numeric dictionary to use with air-crack.
So, i would like to create a dictionary that has only 10 digits, and the first two digit should be "05", because thats what mobile numbers here start from. I would be really grateful if anyone could point me to a way to do this easily.
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Mar 28, 2009
I have gotten over my inability to add SELinux users and am trying to write an SELinux module on my Fedora 10 machine, standard SELinux distribution. Most of it works just fine, but I've been having strange troubles with some policy interfaces--m4 expands them to numbers rather than valid SELinux policy language. Here's what I'm getting:
seutil_read_config($1_t) ---> 679
seutil_read_src_policy($1_t) ---> 1021
files_search_etc($1_t) ---> 1875
As far as I know all of these are valid policy interfaces (I've checked them up in their respective files, and they do exist and contain what appears to be valid policy). The last one I know because I went into seutil_read_src_policy and put its contents into the module rather than the macro itself. Now, I could do the same with files_search_etc, but really I'd like the top-level macro to just work. Does anyone know what is causing this problem? I'm certain I'm using correct syntax, unless there's a whitespace rule I'm not familiar with.
A secondary problem I have, generating warnings rather than errors, is that for some reason ' s are popping up in my expanded module, right after the end of expansions of some (but not all) macros that I've defined.
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Aug 9, 2011
I'm about to create a CSR and was reading this page in the Ubuntu docs: [URL] A couple of things:
* There's no date on the article. The documentation needs DATES because this information gets out of date! Check MySQL docs, for instance -- they are organized by version.
* The instructions for generating a cert only specify 2048 bits. I believe that's kind of out of date? The verisign site has big red warnings saying you need 2048 if you want your cert to last past 2013 -- and that article is 4 years old!
* The instructions are confusing when discussing the passphrase. We enter a passphrase only to remove it immediately. We need some clarity here. Why do this?
How to understand the current best practices for generating an HTTPS cert for apache and/or mail access?
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Feb 23, 2011
Im trying to run some penetration testing on my home wireless and want to know if the tools that backtrack uses are available in the repository.
Specifically tools that can be used to sniff out valid mac addresses and breaking wep encryption-what tools am i looking for?
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Apr 20, 2011
I would like to secure my site and I want to implement CAS for SSO, SELinux for the permission into my server and CODA, the last one I have read is not compatible with it, but I don't know if somebody have tried something. The most important request from HQ is use SELinux, they're conviced is the best one for the user permissions. I tried to look for some info in internet but there almost nothing.
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Feb 24, 2011
how to generate excel charts from C, or if it's possible at all? For example, if I had 2 arrays that I wanted to export to excel and graph against each other. I know how to export it to a csv file, that's no problem, but I have no idea where to start with generating a graph of the data. I can't seem to find any examples anywhere. Just a simple example to show you what I mean: Code:
char arr1[] = {'a','b','c'};
int arr2[] = {10,20,30};
int main ()
[code]....
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May 8, 2009
I want to generate my own socks 5 proxy not for lan but for my use on internet I want to access that proxy from any pc and any connection. Like proxy supplied by atomintersoft.com or xroxy.com i want to create my own 300 socks 5 proxy. I can have dedicated server if required to do so.
1)tell me steps to create my own socks5 proxy.What are general system requirement.
2)Which Distro will be best for this purpose.I am new here and dont have idea about linux but can grasp everything faster than u!
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Jul 3, 2011
I have a directory containing the following files.
Code:
1-res-opt-I189N-0001.pdb
1-res-opt-I189N-0002.pdb
1-res-opt-I189N-0003.pdb
1-res-opt-I189N-0004.pdb
[code].....
What I want is something like:
Code:
for i in *.pdb
do
python my_script.py 1-res-opt-I189N-00{1..10}.pdb 3-res-opt-I189N-00{1..10}.pdb
done
such that always the two files with corresponding index are submitted together to the Python script. How do I do that?
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Jul 22, 2009
I have a server which I use for mail:
[URL]
The above is the machines actual FQDN. Now because I also use it as a web server to access my website and webmail, I have a pointer record with my domain registrar to also forward all [URL] to the same IP as [URL]. when I generate a SSL self signed certificate for my server. Do I generate one for [URL] or [URL]?
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Jul 21, 2009
SARG seems ok but it is not generating any reports.... "Now generating Sarg report from Squid log file /var/log/squid/access.log squid and all rotated versions .... Sarg finished, but no report was generated. See the output above for details. There is also no view generated reports too.
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Aug 4, 2010
Unfortunatelly since i have no background at all about GUI programming, i dont know even the keyword for that i want to generate a pop up window from my program (written in C) which show a message and an OK button. in my opinion, maybe i should use directly the Xlib library and not the GTK or QT library for example so the program can work almost on every linux system. A code snippet/hint for the pop-up window then?
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May 9, 2010
Im strugling with script that wil generate graph on demad. I put it in cgi-bin directory but cannot get it to work. i googled for perl generating images and tried few examples but none worked.
When I execute perl script in command line it throws picture i a bunch of characters so it creates it but wont show when I access it through a web page.
[Code]...
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Mar 9, 2011
I'm trying to write a program that generates a random number and then tells if it is prime or not. I have doe some research about how to calculate prime and random numbers but I'm still having trouble. I don't really get how to calculate a prime number. I know a prime number is a number that is divisible by 1 and and itself. how to calculate a prime number in C?
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Jul 23, 2010
I'm trying to understand how interrupts work. Is there a way to generate timer interrupts in C. Also can we enter into the protected mode of the CPU. Does OS (specifically, linux) place any restrictions on user programs entering protected mode. If it does not, do we just have an assembly language program which changed the mode, followed by the C code... I'm just trying to understand how things work at the lowest level. So I'm trying to write few snippets to test my understanding.
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May 11, 2011
Is there a way to keep a wireless AP from generating an RF signal at all until it gets pinged by a client which:
1) Knows it's (the AP's) IP, name, passcode, and operating port,
2) Knows which frequency, and periodic ping-rate to use,
3) And, identifies itself not only appropriately, and timely, but only pings twice before it falls silent, awaiting a response, all others would over run the limit, and thusly fail the AP screening and the AP would totally ignore them, logs the attempts, and stays cold, dark, and silent.
In short, only one (1) device is capable of turning it on.
Seems to me that conceptually, it's quite do-able. Has it been done?
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Dec 5, 2010
How can I generate a list of all the apps I have installed in my Ubuntu installation?
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Jul 30, 2011
while running rsync system is generating .7ffulr extension file ie i am copying x file form server to backup server.while rsync it copy original x file and also generate x.7ffulr file along with it..
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Mar 19, 2011
I am trying to generate sequence of number in the order of :
1
2
3
4
[Code]....
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May 17, 2011
I know how to manually writing a makefile for my project, but I am new in using makefile & configure file generation tools like automake to generate a makefile and a configure script file.
I had done research on tutorials for generating makefile and configure script file.
I know that I need to manually write two files (makefile.am and configure.in).
I use wxWidgets GUI library, libconfig library, and libpcap library to do my project.
wx-config is a tool that can return the library files and include directory for wxWidgets library.
When using g++ to compile my files, I need to add in this line "`/wxlib/bin/wx-config --version=2.9 --static=yes --unicode=yes --debug=yes --libs`"
How to add that line to the makefile.am file?
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Oct 27, 2009
I'm attempting to get OpenSwan up and running. Post-install documentation says to look for hostkeys, or if you have none, create them. When searching the right and left keys both get the same result:
# ipsec showhostkey --left
ipsec showhostkey nss directory showhostkey: /etc/ipsec.d
ipsec showhostkey "/etc/ipsec.secrets" line 2: Modulus keyword not found where expected in RSA key No keys found
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Mar 15, 2010
Is there any tool for generating logical memory addresses accessed by any application in linux ?
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Aug 6, 2010
I am trying to find out can I use the ls command to list my wav files in such a way that it follows this format: <OPTION value="/home/filepath.wav">My first file </OPTION> I would like to know if there is a way I could simplify this because I have about 100 wav files. They all have names and if I could get them listed then a space then the name again with something behind it I could use the find replace feature to generate a bunch of links . If not is there a script out there that could use this format to generate links under this format? BTW this is for a pull down menu that would control windows media player
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Apr 4, 2011
I am running Ubuntu 10.10, upgraded a few weeks ago from 10.04. I noted from the system monitor that the system was generating a lot of network traffic, on the order of 10Mbps if the information is correct (using system monitor and iftop). From the process table, it appears that smbd is accumulating a lot of CPU time, which sort of makes sense as I use Samba for printing from a Windows 7 laptop. But the traffic seems to be making a round trip as I just rebooted the system and it reports in about 10 minutes of uptime 1.2GB was send and 1.2GB was received. Laptop is used for work, it is sitting idle for the last 30 minutes (VPN connection, etc); no backup or other interaction with the Ubuntu system.
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Jan 3, 2011
My apt gets noise from outside. I would like to generate a white noise audio file and play it to block outside noise. I would prefer something like the low frequency hum of a big fan. How can I generate this file in using linux tools?
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Jul 19, 2010
Another question though...i have a fedora 12 server set up and i have created 3 sudo users. I have created 3 putty keys (public and private) using putty key gen and basedn my research i was told to put the public keys in /home/"user"/.ssh/authorized_keys .I did that but when i tried to log on using the key...the server is saying "server refused key" could anyone assist in this issue
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Feb 17, 2011
I've been giving the task to go to a Linux console as root. and generate a ssh rsa 4096bit key, and copy the private key to a USB drive.
1) What command should I use here? ssh-keygen -t rsa -b 4096 ?
2) Do I need to append the new private key to the authorized_users file? Which file exactly must be appended there? Would this be sufficient?
mkdir -p /home/myuser/.ssh
cat id_rsa_LOCAL.pub >> /home/myuser/.ssh/authorized_keys
Should any special permissions be applied to this file?
3) Which file must be sent to my usb drive so that I can take it home to connect with?
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Jul 1, 2011
I'm trying to find some tool on generating reports based on apache access_log files (of Common format). I found some of them (awstats, lire/logreport, weblog expert, apache logs viewer, etc..) but they generate some global and general report about the log file. Also some perl script I found they just show the Top X number of different patterns. My request is how can I generate some similar report with this output:
IP-s | Total nr. of connections | Number of pages visited | Total time of connection
So basically this is a list with every IP on the log and the respective numbers (connection/pages/time) associated.
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