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Dec
15
comment Is TLS in Tor useless?
Do you value speed over privacy and security?
Nov
30
comment If a phone is encrypted at a platform storage level do I need to encrypt my data stored on it?
@sisterray The problem with a browser is that it is almost always used; if you app is used for short period of times, it might make sense to protect its data with a specific password.
Nov
30
comment If a phone is encrypted at a platform storage level do I need to encrypt my data stored on it?
@ParthianShot Unless you don't have your browser opened all the time (which would be quite exceptional), and you don't use need your passwords all the time (the remember password feature is useful when you have many passwords and use these often), and your little brother could still get your passwords and use your online accounts. Conclusion: Lock your computer.
Oct
22
comment How can I strip sensitive data out of a Wireshark log report?
There is probably much more than MAC addresses in the log file.
Oct
22
comment How can I strip sensitive data out of a Wireshark log report?
What kind of traffic?
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
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
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
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.
Jun
16
comment Is it illegal to publish an exploit against a known vulnerability in US?
@AbbasJavanJafari OSS (open source software) is not without copyright and copyright owners.
Jun
14
comment Is it illegal to publish an exploit against a known vulnerability in US?
Could you describe the applicable doctrine or law?