387 reputation
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visits member for 7 months
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Apr
1
awarded  Nice Answer
Mar
31
answered When hashing passwords, is it ok to use the hashed password as the salt?
Mar
12
awarded  Necromancer
Mar
12
revised Whats the best way to make my internet traffic anonymous?
Added a link to Tor website. Totally forgot that some people don't know what it is.
Feb
10
comment Good Practice: Storing Passwords in general
See security.stackexchange.com/questions/211/…
Jan
21
answered When hashing passwords, is it okay to store the algorithm used right there in the database?
Dec
31
comment Passive and active attacks via X11. Is Wayland any better?
blogs.gnome.org/wjjt/2012/03/14/looking-around-wayland is the xeyes story. I couldn't find anything about it in official documentation right now.
Dec
29
awarded  Commentator
Dec
29
comment What's the secure way to change UNIX permissions on a harcoded file often?
"fstat() the first component of the path which might be a symlink" - I assume you mean "stat()" here. That aside, thanks a lot, great answer!
Nov
27
comment Whats the best way to make my internet traffic anonymous?
LiveCDs are not a great idea because they receive no security updates. Your system may become vulnerable in a few days.
Nov
27
awarded  Critic
Nov
21
awarded  Student
Nov
21
awarded  Scholar
Nov
21
accepted What's the secure way to change UNIX permissions on a harcoded file often?
Nov
21
comment What's the secure way to change UNIX permissions on a harcoded file often?
I'm trying to signal .desktop file visibility via TryExec= fields in them, standards.freedesktop.org/desktop-entry-spec/latest/… I've tried a bunch of other solutions but this seems to be the simplest even for more complex cases like checking several conditions, etc
Nov
21
comment What's the secure way to change UNIX permissions on a harcoded file often?
In fact I'm merely changing it for executability checks in .desktop file handlers. I know the actual executability doesn't depend on that bit. The problem with the chmod()'s is that they set other properties such as readability in addition to flipping the executability bits. But thanks for the tip anyway!
Nov
21
comment What's the secure way to change UNIX permissions on a harcoded file often?
Assuming the system already runs something like AppArmor, SELinux or TOMOYO, can my daemon be the cause of privilege escalation? It seems that way #1 allows converting the privilege to create symlinks as root into privilege to chmod things as root, doesn't it?
Nov
21
comment Passive and active attacks via X11. Is Wayland any better?
In fact Wayland is better, it doesn't allow snooping on input to other applications, including mouse position isolation. For example, xeyes don't work in wayland without heavily patching the whole thing (though one dev did exactly that just for fun). I'm sure keylogging is disallowed too.
Nov
21
comment Secure Linux Desktop
As for search engines, StartPage has somewhat outdated data, so I recommend using ixquick.com (aggregated search, same technology) or duckduckgo.com (independent privacy-oritented search engine) or use an SSL'd Seeks instance (seeks-project.info/site) or, best of all, run a Seeks node locally.
Nov
21
comment Secure Linux Desktop
My $0.02: Use opendns.com/technology/dnscrypt or dnscurve.org instead of DNS-over-HTTPS. DNSCrypt is faster and probably more secure, DNSCurve is also faster and even more secure but it's harder to find a server for it.