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 Forum index » Off-Topic Area » Security
How to increase the security!
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Sylvander

Joined: 15 Dec 2008
Posts: 3447
Location: West Lothian, Scotland, UK

PostPosted: Sat 28 Apr 2012, 04:13    Post_subject:  

1. For years now...
I've held ALL of my MANY sets of info [includes username, password, security info, URL's, etc]...
In my "Acersose Password Vault" [APV].

2. APV is a Windows program that can either be installed, or run portable.
I choose to run it portable, in both Win2000Pro->[almost never], and each of my Puppies using WINE.
The exe file is held on a dedicated partition [holding ALL my portable Windows programs], on a separate/dedicated internal HDD [Windows uses 1 of the other partitions].
Normally, none of these partitions are mounted.

3. To gain access to the vault...
I need only remember my username and fairly long but easily rememberd password.
Once in there I typically copy and paste the needful.
Hence, stuff can be long and complex and still be easy to work with.
APV can auto-generate passwords of a length [and with types of characters] specified by the user.
New entries are easy to create.
Saves can be made manually.
Backups are automatic.

4. The number of sets of info [entries] is HUGE.
Can't think of any other way of dealing with all of that.
Very useful too.
I can keep all sorts of info in there.
And it's both SECURE->[difficult to gain access to] and SAFE->[protected from loss by multi-auto-backup].
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nooby

Joined: 29 Jun 2008
Posts: 10557
Location: SwedenEurope

PostPosted: Sat 28 Apr 2012, 04:56    Post_subject:  

I'm very naive and bad at doing logic but follow this.

For years they have tested what happens when some noob
get a computer and start it up and get out on internet.

I trust that pcworld.com and similar mags has done like our
idg.se did. They have tested this with WinXP and Win Vista
and Win7 and within some 5 to 10 minutes the machine is full
of trojans and other things from the internet and this without that
person having to visit any dangerous sites.

So my logic tells me that if one have puppy with Wine then
would not the same happen instantly due the wine allowing it all in?

What is the difference? Why would it be safer with wine?

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not an ideal solution though
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puppy_apprentice


Joined: 07 Feb 2012
Posts: 135

PostPosted: Sat 28 Apr 2012, 07:12    Post_subject:  

it is better to use virtual machines like QEMU or VirtualBox, if u will use in Wine only trusted apps from trusted sities u should be safe (Wine is not windows it gives for app only an illusion that it runs on Windows), if u will get eg. some macro virus for Outlook it will only work if u will work with Outlook in Wine, Windows viruses or macro scripts (jscript, vbscript etc.) will not work in Linux

but it is possible to write a virus that will compatible with Wine, it will use Wine holes etc.

http://linux.slashdot.org/story/09/10/24/1759213/now-linux-can-get-viruses-via-wine

http://forum.winehq.org/viewtopic.php?t=13574&sid=e5a1c38d7cbf3afaaf746247fe12ac85

http://superuser.com/questions/187548/wine-and-windows-viruses

http://forums.fedoraforum.org/showthread.php?t=269419

http://www.linuxquestions.org/questions/linux-security-4/would-a-windows-virus-executed-in-wine-compromise-the-whole-linux-system-851808/

http://www.linuxforums.org/forum/wine/118945-can-wine-get-viruses.html
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Barkin


Joined: 12 Aug 2011
Posts: 724

PostPosted: Sat 28 Apr 2012, 12:37    Post_subject:  

Barkin wrote:
password generation
["+salt" is any character sequence which you commit to memory and never write down,
character sequence preferably not a word in any dictionary, "+salt" isn't , "salt" is , the longer the character sequence the better ]


The character sequence can be another MD5 ...
use MD5 of ''+salt'' as salt.png
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use MD5 of ''+salt'' as salt.png

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shoutcrown

Joined: 12 Mar 2011
Posts: 85

PostPosted: Tue 01 May 2012, 12:13    Post_subject:  OK!
Sub_title: OK!
 

Hi guys!. Thanks a lot for continuous advices!

Quote:
Lobster:

password generation
http://www.murga-linux.com/puppy/viewtopic.php?p=316884#316884

For all you budding tin hats
Why not order a Raspberry Pi
http://puppylinux.org/wikka/Puppi
and create
a password generator and changer?


Lobster those password generators seem to be good. Also I think I don't order a Raspberry Pi, because I might have some troubles creating a password generator... (What do is the meaning of budding tin hats?)

Quote:
Barkin:

With my method you can safely write down ...


Barkin MD5 seems to be a good password generator, but:

Quote:
A 2009 attack by Tao Xie and Dengguo Feng breaks MD5 collision resistance in 220.96 time. This attack runs in a few seconds on a regular computer


Does it mean MD5 is not enough strong?. Also I can't find a link to download it

Sylvander, like the others guys I prefer to use Linux rather than Windows because of more security...

nooby, I think the same as you. Just everybody should use Linux

puppy_apprentice, you know? I didn't use Wine yet, because of there are so many useful packages for linux distributions

Barkin, I appreciate your continuous support!, Where can I get MD5 password generator?

Thanks a lot! Best wishes all of you Wink
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Sylvander

Joined: 15 Dec 2008
Posts: 3447
Location: West Lothian, Scotland, UK

PostPosted: Tue 01 May 2012, 12:26    Post_subject: Re: OK!
Sub_title: OK!
 

shoutcrown wrote:
Sylvander, like the others guys I prefer to use Linux rather than Windows because of more security...

Same here. Very Happy
The reasons I'm continuing to use this Windws portable program is:
(a) I used it for years prior to the point in time at which I discovered Puppy Linux.

(b) It's easy to just continue to use it.

(c) It's a REALLY GOOD program.
Does its job wonderfully well.
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Barkin


Joined: 12 Aug 2011
Posts: 724

PostPosted: Tue 01 May 2012, 13:01    Post_subject: Re: OK!
Sub_title: OK!
 

shoutcrown wrote:
What do is the meaning of budding tin hats?

"tin foil hat" is a joke name for people who are overly concerned with security and incorrectly believe they are under observation ... https://en.wikipedia.org/wiki/Tinfoil_hat

shoutcrown wrote:
... Where can I get MD5 password generator?


My Puppy 525 comes with "GtkHash" (see "utility", "general utilities") which calculates MD5 and SHA1 of strings of characters (i.e. "text"), or files.

There are MD5 calculators which can run in your browser (via javascript), e.g. ... http://pajhome.org.uk/crypt/md5/

And there are online MD5 calculators ... http://hash.online-convert.com/md5-generator but "online" means your passwords will be transmitted unencrypted over the internet Surprised
gtkhash location in puppy 525.png
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gtkhash location in puppy 525.png

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RetroTechGuy


Joined: 15 Dec 2009
Posts: 2668
Location: USA

PostPosted: Tue 01 May 2012, 14:14    Post_subject:  

Sylvander wrote:
1. For years now...
I've held ALL of my MANY sets of info [includes username, password, security info, URL's, etc]...
In my "Acersose Password Vault" [APV].


I've been using Password Gorilla to store my passwords...

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puppy_apprentice


Joined: 07 Feb 2012
Posts: 135

PostPosted: Tue 01 May 2012, 14:31    Post_subject:  

Quote:
Barkin MD5 seems to be a good password generator...


u can use MD5 as a password generator, but MD5 is used widely to encrypt user logins and passwords eg. on online services (and yes it could be decrypted, so it is better to use other hashing methods)

u write in fields eg. login: user, password: qL2a9.! and before they will be stored in site database they will be encrypted via MD5, if u will login to site and write your login and password (the same like above), data again will be encrypted and compared with encrypted data from database

for storing password in linux i'm using those:
GPassword Manager http://sourceforge.net/projects/gpasswordman/
Password Dragon http://www.passworddragon.com/
LastPass https://lastpass.com/
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RetroTechGuy


Joined: 15 Dec 2009
Posts: 2668
Location: USA

PostPosted: Tue 01 May 2012, 14:58    Post_subject:  

puppy_apprentice wrote:
Quote:
Barkin MD5 seems to be a good password generator...


u can use MD5 as a password generator, but MD5 is used widely to encrypt user logins and passwords eg. on online services (and yes it could be decrypted, so it is better to use other hashing methods)


Why?

The MD5, as used, is the "text password", which is then MD5 hashed once again for the password server. Such a "random" string would typically be more secure than "ESAD" or "Password" or any of the simple memorable passwords people use.

And while it may not be perfect, it is very likely to NOT be the weakest link...

Why Cryptography Is Harder Than It Looks, By Bruce Schneier

http://www.schneier.com/essay-037.html

Choosing Secure Passwords, By Bruce Schneier

http://www.schneier.com/blog/archives/2007/01/choosing_secure.html

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puppy_apprentice


Joined: 07 Feb 2012
Posts: 135

PostPosted: Tue 01 May 2012, 15:14    Post_subject:  

Quote:
Why?

The MD5, as used, is the "text password", which is then MD5 hashed once again for the password server. Such a "random" string would typically be more secure than "ESAD" or "Password" or any of the simple memorable passwords people use.


yep i agree please read my example:

Quote:
password: qL2a9.!


in the field password user has to write qL2a9.! or Z!$d.4F0£XXXXX where X is randow character/digit/symbol or any random chain and ofcourse it don't have to start with Z!$d.4F0£ it is only example like looks my passwords, i try to use in my passwords digits/chars/numbers

u use md5 to get your randow passwords (from your string + salt) i use my fingers to produce my random passwords and check them on GRC.COM site if they are "strong enough":



,but as i said i store passwords in my site encrypted using methods available in PHP, so again i write in my site Z!$d.4F0£XXXXX as a password to login, my script is adding salt to this password andwhole chain is hashed via MD5 or SHA1 or another and stored in mysql database in my site

and i store all my random passwords in apps mentioned in earlier post, they have options to generate strong passwords, and encrypt them in AES, Blowfish etc.

i think that we speak about the same, but this methode is used to store passwords on internet sities (i add to your info some more info)
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shoutcrown

Joined: 12 Mar 2011
Posts: 85

PostPosted: Tue 01 May 2012, 18:10    Post_subject:  holas!
Sub_title: cómo están?
 

hi guys!

Sylvander, that's right!. Windows and his programs may be more easy to use so many people doesn't want to use other OS. Also everybody is free to choose which OS and programs to use.

Barkin, that's funny..., (i guess i am buddy tin hat or tin foil hat... I don't care!). You know?, I had Lucid 528, but there is no drivers for TP-LINK TL-WN722N to install on Lucid (there is those drivers only for Slacko 531). So I am using right now Slacko Puppy Linux 531. I mean Slacko doesn't have GTKhash. Like you say if I use MD5 in the browser then anybody can see my passwords... That wouldn't be a good idea.

RetroTechGuy, thanks

[puppy_apprentice]MD5 is used widely to encrypt user logins and passwords eg. on online services (and yes it could be decrypted, so it is better to use other hashing methods) [/puppy_apprentice]

puppy_apprentice and RetroTechGuy, ok, so using MD5 perhaps is a risk... (there is nothing perfect, isn't?).

The security is a deep issue, and there is nothing perfect, isn't?. Like sickgut say:

http://www.murga-linux.com/puppy/viewtopic.php?t=77746

[sickgut]if someone wants to hack you they will, no matter what security you have in place. Most govenments in the world dont actually let a product hit the shelves unless is can be backdoored or there is govenment approved backdoor in it, this is how they fight cyber crime[/sickgut]

Maybe finally i will keep writing by myself my passwords and changing them usually

Thanks a lot! bye Smile
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Barkin


Joined: 12 Aug 2011
Posts: 724

PostPosted: Tue 01 May 2012, 19:12    Post_subject:
Sub_title: MD5 challenge
 

shoutcrown wrote:
Like you say if I use MD5 in the browser then anybody can see my passwords... That wouldn't be a good idea.

Online and in-browser are different. Online transmits data over the internet, in-browser doesn’t. Attached is a zip file “arcane MD5” which has a MD5 calculator which is run in any browser which has javascript enabled, once you have downloaded it you can disconnect from the internet and run it to convince youself that nothing is being sent over the internet.

shoutcrown wrote:
[puppy_apprentice]MD5 is used widely to encrypt user logins and passwords eg. on online services (and yes it could be decrypted, so it is better to use other hashing methods) [/puppy_apprentice]

puppy_apprentice and RetroTechGuy, ok, so using MD5 perhaps is a risk...

For those who think using an MD5 derived as I have described above is insecure method to create a password here is a challenge : attached is an encrypted zip file with my PayPal account details, feel free to empty my account, the password to open the encrypted zip file is an MD5, i.e. a 32 character hexadecimal number with the letters in lower case. I could have made life even more difficult by adding letters beyond “F” or non-alphanumeric characters, but I haven’t. Best of luck (you're gonna need it).
My paypal account details, help yourself.zip
Description  an encrypted zip file (256 bit AES) password is an MD5
zip

 Download 
Filename  My paypal account details, help yourself.zip 
Filesize  294 Bytes 
Downloaded  301 Time(s) 
Arcane MD5.zip
Description  an in-browser MD5 calculator, requires javascript.
zip

 Download 
Filename  Arcane MD5.zip 
Filesize  27.19 KB 
Downloaded  292 Time(s) 
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shoutcrown

Joined: 12 Mar 2011
Posts: 85

PostPosted: Tue 01 May 2012, 22:56    Post_subject:  OK!
Sub_title: GOOD!
 

hi Barkin!

Je, je!!!. There was a confusion!

Quote:
Barkin:
Online and in-browser are different. Online transmits data over the internet, in-browser doesn’t. Attached is a zip file “arcane MD5” which has a MD5 calculator which is run in any browser which has javascript enabled


Thank you!. Now I can test how to create automatic passwords. It's very useful, but I shouldn't use any known word, just some other characters sequence, right?. Also you say it's very hard to remember long passwords. But MD5 generates 32 new characteres. So If I use those 32 characters for my passwords, everytime I need to use Wifi connection first I should open MD5 and write my own characters sequence and get the new 32 characteres then paste them when Wifi ask for the password to get internet connection, right?

By the way, I will never try to get passwords. I think the "challenge" is very hard...

Thank you very much! Nice work!
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RetroTechGuy


Joined: 15 Dec 2009
Posts: 2668
Location: USA

PostPosted: Tue 01 May 2012, 23:16    Post_subject: Re: holas!
Sub_title: cómo están?
 

shoutcrown wrote:

puppy_apprentice and RetroTechGuy, ok, so using MD5 perhaps is a risk... (there is nothing perfect, isn't?).


Huh? I think that I said just the opposite. I see nothing wrong with using an MD5 hash for the password.

Your best defense is a password that isn't dictionary testable...that reduces the attack to brute force, which pretty well ends the attack. (and I doubt that your MD5 will be in the dictionary).

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