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visits member for 3 years, 3 months
seen 18 hours ago

Sep
24
awarded  Yearling
Sep
18
revised Why secure encrypted data consistency by strong hashing?
fixed grammar, removed "thanks", added tags
Sep
11
comment Is it fair to say that lack of client-authentication in TLS implies no requirement of non-repudiation?
"non-repudiation" of what exactly?
Aug
28
comment Is this hash function safe?
@Polynomial 1 is a most descriptive term than sizeof(char).
Aug
27
comment Is this hash function safe?
@Polynomial "that the size of the type is relevant" of which type? Why not sizeof (sometypedef)?
Aug
24
comment How vulnerable am I on a unencrypted public WiFi network?
WPA-Personal with a PSK shared with strangers is not very secure obviously; still, you at least get a session key, which allows encrypted unicast from/to AP. Of course, only symmetric encryption is used, based on a shared secret, so anyone could capture and decrypt the auth phase and recover the private session key. But 1) this requires some effort (more than trivial listening on open Wifi) 2) only those who captured the encrypted session key packets can do the decryption. So WPA-Personal provides some obfuscation. But you should move to Enterprise mode instead.
Aug
24
reviewed Approve How vulnerable am I on a unencrypted public WiFi network?
Aug
22
comment Is this hash function safe?
sizeof(char) is 1. Always. By design. By definition. Don't compute sizeof(char).
Aug
2
comment Can the USB standard be altered to prevent the “firmware attack”?
@nealmcb Probably, but you would first need to configure the networking device; maybe with the keyboard and pointing device included in the same USB chip?
Aug
1
comment Can the USB standard be altered to prevent the “firmware attack”?
@nealmcb "can launch networking attacks" how?
Aug
1
comment Can the USB standard be altered to prevent the “firmware attack”?
USB isn't a standard about flash memory design, or mouse design, it's a networking standard. A networking standard, even PXE, has no business ruling on loader signature, kernel signature, etc.
Aug
1
comment Can the USB standard be altered to prevent the “firmware attack”?
I have no idea what you would like to standardise. I bet firmware, firmware loaders, and chips are not standard. A USB standard's aim is interoperability, not security. It's about standard protocols. If people want to play and reprogram USB devices, it isn't the task of a standard to rule on that.
Aug
1
answered Can the USB standard be altered to prevent the “firmware attack”?
Aug
1
comment Can the USB standard be altered to prevent the “firmware attack”?
How devices can be reprogrammed, how new firmware is verified, and whether it is signed, are out of the scope of the standard.
Jul
23
reviewed Approve Get the browser history without using a browser
Jul
18
reviewed Approve How to easily remember lots of different passwords?
Jul
15
comment This protocol is vulnerable, but why?
It isn't clear what you are trying to do here!
Jul
14
comment Why is the same origin policy so important?
"origin of the script itself is not relevant to the same-origin policy" but it is: first, the script http://a.c/s.js is fetched with its HTTP origin http://a.c, with its a.c HTTP cookies; then run within the scope of the HTML document (http://b.c/doc.html) HTTP origin (http://b.c/).
Jul
13
comment Showing CAPTCHA
With IPv6, getting another, different IP address is as trivial as ipconfig. Be careful with address storage: don't expose yourself to a DDOS.
Jul
6
revised Website: Pre-Shared-Key Authentication
spelling, better wording