58,805 reputation
17146240
bio website en.wikipedia.org/wiki/…
location United Kingdom
age 27
visits member for 3 years, 10 months
seen 15 hours ago

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
27
comment Can I use AES CTR mode to encrypt files with same key and nonce?
@Rak The stuff in my answer.
May
22
comment Can I use AES CTR mode to encrypt files with same key and nonce?
I'm not sure how you're inferring that from the question.
May
22
comment Can I use AES CTR mode to encrypt files with same key and nonce?
If his attack model is that an attacker can't get access to the encrypted data, why encrypt the data in the first place?
May
22
comment What is Logjam and how do I prevent it?
@Atsby You could say the same about drone attacks.
May
20
comment Offline RSA strong prime test similar to Phuctor?
You should note that the factored 4096-bit key was a corrupt subkey, not a real generated key. As such it had no real-world impact.
May
20
comment Should diffie-hellman parameters be unique to a vhost
Yes, it matters, though 2048-bit makes the point rather moot.
May
20
comment What is Logjam and how do I prevent it?
@ThomasPornin I figured there was some crypto wizardry behind the precomputation that I wasn't aware of. Your answer is excellent, by the way. I understand it better than I did before.
May
20
comment PayPal encrypted with obsolete cryptography
@cburatto The selected cipher suite is agreed upon by both the client and server, depending upon support and suite priorities.
May
19
comment How to escape a cookie to cause split response?
You can only exploit it as a splitting attack if you can cause encoded values to be decoded into the cookie value, e.g. passing %0D%0A into the URL producing a raw CR+LF in the cookie.
May
19
comment Virus attached or included in VST(i) Plugin
Why are people flagging this as "Primarily opinion based"? It's a good, objective question, asking whether VSTs are somehow prevented from acting maliciously, and whether there's a risk. Please read things fully and properly before you issue a flag.
May
19
comment How can the Android GraphicBuffer::unflatten() vulnerability (CVE-2015-1474) be exploited remotely?
@SureCoat I added some clarifications which should help.
May
18
comment How does an attacker know when he has the password?
@SnakesandCoffee It's Python in the sense that I wrote it to look a bit like Python, because it's easy to understand. Stuff like "for each" and "file.readlines" is totally bogus though.
May
18
comment How does an attacker know when he has the password?
@mucaho Added additional pseudocode as requested.
May
18
comment How does an attacker know when he has the password?
@NeilSmithline Yes, that is true, but for simplicity's sake and to answer the specific question of how the attacker would know the right password for the hash, I didn't go into that.
May
18
comment ASP.NET Machinekey encryption
@Jake Yes. The IV is embedded within the output data.
May
18
comment Disadvantages of disabling RC4 in SSL/TLS
@R15 Good point, though just mentioning RC4 alone may not be sufficient due to future developments. I've just put a generic note in there.
May
18
comment Disadvantages of disabling RC4 in SSL/TLS
@StackzOfZtuff Yes. ECDSA is the Elliptic Curve variant of DSA. Keep in mind that this is not the same as ephemeral. Unfortunately different implementations make it confusing, but the generally accepted format is to use the -E suffix (e.g. DHE) to signify ephemerality, and the EC- prefix (e.g. ECDH) to specify that it's an Elliptic Curve variant. If it's both elliptic curve and ephemeral, you'd use both: ECDHE.
May
18
comment Disadvantages of disabling RC4 in SSL/TLS
@StackzOfZtuff Sure. DSA long-term keys can be stored in certificates and used for the key exchange, just like RSA.
May
18
comment What is encryption by RSA with AES?
@AlpA No. We have The DMZ for general chat, but there are no private messages. It would defeat the point of having public discussion which can be referred to later by others.
May
18
comment Firebug reports SHA-1 certificate error
Ah - I worked it out. The certificate has a list of Subject Alternative Name records, including *.googleapis.com. For some reason Google chose to set the storage domain as the CN.