Re: encrypting files

2006-07-21 Thread Jonathan Thornburg
I have been thinking about encrypting some private files on my laptop, in case it gets stolen. I have a general comment, and a specific software suggestion: General comment: Whatever encryption solution you use, think seriously about backups! That is, if your data is important enough to

Re: Encrypting files

2006-07-02 Thread Joachim Schipper
On Sun, Jul 02, 2006 at 02:14:59AM +0200, Rico Secada wrote: Hi I have been thinking about encrypting some private files on my laptop, in case it gets stolen. I have no prior experience in this field. I have been thinking about using mcrypt with blowfish, but is this a good way to go

Re: Encrypting files

2006-07-02 Thread Sigfred HÃ¥versen
Joachim Schipper wrote: On Sun, Jul 02, 2006 at 02:14:59AM +0200, Rico Secada wrote: Hi I have been thinking about encrypting some private files on my laptop, in case it gets stolen. I have no prior experience in this field. I have been thinking about using mcrypt with blowfish, but is this

Re: Encrypting files

2006-07-02 Thread Joachim Schipper
On Sun, Jul 02, 2006 at 12:00:34PM +0200, Sigfred H?versen wrote: Joachim Schipper wrote: On Sun, Jul 02, 2006 at 02:14:59AM +0200, Rico Secada wrote: Hi I have been thinking about encrypting some private files on my laptop, in case it gets stolen. I have no prior experience in this

Re: Encrypting files

2006-07-02 Thread Chris Kuethe
Bear in mind that if you're serious about keeping plaintext away from people who you don't want to see it, this could get quite tricky. What happens if an application generates temporary files? What happens if an application swaps? What happens if an application crashes and dumps core? What

Re: Encrypting files

2006-07-02 Thread Joachim Schipper
On Sun, Jul 02, 2006 at 10:57:42AM -0600, Chris Kuethe wrote: Bear in mind that if you're serious about keeping plaintext away from people who you don't want to see it, this could get quite tricky. What happens if an application generates temporary files? What happens if an application

Re: Encrypting files

2006-07-02 Thread Nick Guenther
On 7/2/06, Chris Kuethe [EMAIL PROTECTED] wrote: Bear in mind that if you're serious about keeping plaintext away from people who you don't want to see it, this could get quite tricky. And that's not even taking into account that the thief might just put trojan horses all over your laptop

Re: Encrypting files

2006-07-02 Thread Peter Philipp
On Sun, Jul 02, 2006 at 02:56:03PM -0400, Nick Guenther wrote: I have some questions though: How can you make a keylogger on UNIX? I thought that UNIX segmented it's memory spaces, unlike Windows which has the problem of a global key trampoline (I'm sorry, I read this somewhere once and do not

Re: Encrypting files

2006-07-02 Thread Nick Guenther
On 7/2/06, Peter Philipp [EMAIL PROTECTED] wrote: On Sun, Jul 02, 2006 at 02:56:03PM -0400, Nick Guenther wrote: I have some questions though: How can you make a keylogger on UNIX? I thought that UNIX segmented it's memory spaces, unlike Windows which has the problem of a global key

Re: Encrypting files

2006-07-02 Thread Joachim Schipper
On Sun, Jul 02, 2006 at 02:56:03PM -0400, Nick Guenther wrote: On 7/2/06, Chris Kuethe [EMAIL PROTECTED] wrote: Bear in mind that if you're serious about keeping plaintext away from people who you don't want to see it, this could get quite tricky. And that's not even taking into account

Re: Encrypting files

2006-07-02 Thread Joachim Schipper
On Sun, Jul 02, 2006 at 09:34:50PM +0200, Peter Philipp wrote: On Sun, Jul 02, 2006 at 02:56:03PM -0400, Nick Guenther wrote: I have some questions though: How can you make a keylogger on UNIX? I thought that UNIX segmented it's memory spaces, unlike Windows which has the problem of a

Re: Encrypting files

2006-07-02 Thread Joachim Schipper
On Sun, Jul 02, 2006 at 03:59:41PM -0400, Nick Guenther wrote: On 7/2/06, Peter Philipp [EMAIL PROTECTED] wrote: On Sun, Jul 02, 2006 at 02:56:03PM -0400, Nick Guenther wrote: How can you make a keylogger on UNIX? I think this was meant. (...) Ah, okay, thank you! I see a lot go across on

Re: Encrypting files

2006-07-02 Thread Peter Philipp
On Sun, Jul 02, 2006 at 10:25:35PM +0200, Joachim Schipper wrote: Well, provided the BIOS (or equivalent) cannot be flashed from the kernel, yes. Of course, worrying about this requires raging paranoia. But from a Paranoia isn't necessarily a bad thing. It motivates people to seek true or

Re: Encrypting files

2006-07-02 Thread Travers Buda
On Sun, 2 Jul 2006 10:57:42 -0600 Chris Kuethe [EMAIL PROTECTED] wrote: Bear in mind that if you're serious about keeping plaintext away from people who you don't want to see it, this could get quite tricky. After a bout of homocidal paranoia and time spent wondering just what to do with

Encrypting files

2006-07-01 Thread Rico Secada
Hi I have been thinking about encrypting some private files on my laptop, in case it gets stolen. I have no prior experience in this field. I have been thinking about using mcrypt with blowfish, but is this a good way to go about? Are there a better alternative? And is blowfish the best way

Re: Encrypting files

2006-07-01 Thread Peter Philipp
On Sun, Jul 02, 2006 at 02:14:59AM +0200, Rico Secada wrote: Hi I have been thinking about encrypting some private files on my laptop, in case it gets stolen. I have no prior experience in this field. I have been thinking about using mcrypt with blowfish, but is this a good way to go

Re: Encrypting files

2006-07-01 Thread Travers Buda
On Sun, 2 Jul 2006 02:14:59 +0200 Rico Secada [EMAIL PROTECTED] wrote: Hi I have been thinking about encrypting some private files on my laptop, in case it gets stolen. tedu just improved svnd's crypto... add -K option which uses a salt file and pkcs5 pbkdf2 to create a more secure key...

Re: Encrypting files

2006-07-01 Thread Paul de Weerd
On Sun, Jul 02, 2006 at 02:14:59AM +0200, Rico Secada wrote: | Hi | | I have been thinking about encrypting some private files on my | laptop, in case it gets stolen. If someone can steal your laptop, can they also take it for a short while, fiddle with it (eg install a malicious kernel) and