32,527 reputation
1066135
bio website en.wikipedia.org/wiki/…
location United Kingdom
age 25
visits member for 1 year, 7 months
seen May 18 at 10:45
stats profile views 2,028

Pentester, ex-developer, security researcher, reverse engineer, electronics tinkerer, internet activist, zombie eradicator, promulgator of useless facts, shrubbery inspector, bacon aficionado, devourer of donuts.

Strengths: Security, Crypto, Win32 API, C#, .NET, PHP, x86 assembly

All answers and comments are encrypted with ROT256-ECB.

Opinions are my own. Advice provided with no warranty.


May
8
answered Generic defense againt SQL injection
May
8
reviewed Approve suggested edit on Is it possible for a hacker to download a php file without executing it first?
May
7
awarded  Nice Answer
May
7
reviewed Approve suggested edit on diffie-hellman tag wiki excerpt
May
7
comment How to encrypt data on the server?
Tagging devices is incredibly useful for law enforcement if the property is later discovered in a raid. It means you get to have your part in nailing the assholes that stole your gear, and the cops have one less open case file to deal with. You might even get your assets back, though I wouldn't try using them after they've been compromised.
May
7
awarded  Nice Answer
May
7
answered Is there any particular reason to use Diffie-Hellman over RSA for key exchange?
May
7
comment How to encrypt data on the server?
My point exactly. Disk crypto alone is no use if someone can get into the BIOS and perform a boot-loader attack, then get you to type the password in. The trick is to provide layers of security.
May
7
comment Filtering In Iran
I wouldn't do too much digging though, especially if an oppressive govm't is watching.
May
7
comment How does a firewall help to protect a server?
+1 for mentioning reverse shells. That's normally something people forget about, and it's one thing I always look for when testing. Essentially, if you get an explicit close back on a port, you can be pretty sure that the firewall allows outbound connections through it.
May
7
answered How to encrypt data on the server?
Apr
30
awarded  Notable Question
Apr
30
answered Web application security standards/certificates
Apr
30
reviewed Approve suggested edit on Evasion techiques for WAFs
Apr
30
reviewed Approve suggested edit on CTRL+ALT+DEL Login - Rationale behind it?
Apr
29
comment What are the most common infection vectors for personal computers?
@vlad Thanks for the offer, but sadly mein Deutsch ist sehr schlecht!
Apr
29
comment How are large tech sites such as LivingSocial, Zappos, LinkedIn and Evernote hacked?
As far as patches go, one of the biggest problems in large "100% uptime needed" businesses is change resistance. Bringing down critical systems for patching is expensive and time consuming, and results in having to report smaller numbers to the bosses. So, as such, you'll find that many places lag behind on patches and only do a quarterly patch cycle on critical systems, unless there's a critical service-affecting bug that requires immediate attention. And even then, there's a lot of red-tape and change request politics to go through first.
Apr
29
comment CTRL+ALT+DEL Login - Rationale behind it?
As a side note: when you say it's "wired", what that actually means is that Ctrl+Alt+Del is a mapped to a hardware defined interrupt (set in the APIC, a physical chip on your motherboard). The interrupt was, historically, triggered by the BIOS' keyboard handler routine, but these days it's less clear cut. The interrupt is mapped to an ISR which is executed at ring0, which triggers the OS's internal handler for the event. When no ISR for the interrupt is set, it (usually) causes an ACPI power-cycle event, also known as a hard reboot.
Apr
29
answered .JPEG File upload shell via EXIF comments
Apr
29
comment TrueCrypt and Keyfiles hidden among 500,000 other .pdf files
Consider keyfiles as a "something you have" factor, and treat them in a similar way to an RSA token. The point is that you can keep your keyfiles on your person and refuse to reveal the password on the volume, or take advantage of the plausible deniability of TC's hidden volumes.