364 reputation
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bio website iainbarnett.me.uk
location East Scotland
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visits member for 2 years, 5 months
seen Aug 8 at 22:08

Jul
2
awarded  Curious
Apr
24
awarded  Good Question
Apr
12
awarded  Popular Question
Feb
11
awarded  Popular Question
Jan
5
awarded  Popular Question
Sep
15
revised Is generating random numbers using a smartphone camera a good idea?
A brief thank you.
Sep
15
comment Is generating random numbers using a smartphone camera a good idea?
Thanks for taking the time to answer, very informative, and a lot for me to think about.
Sep
15
comment Is generating random numbers using a smartphone camera a good idea?
Why would the camera be turning on and off?
Sep
15
accepted Is generating random numbers using a smartphone camera a good idea?
Sep
15
awarded  Nice Question
Sep
14
comment Is generating random numbers using a smartphone camera a good idea?
@LucasKauffman "if your random generation is in fact weak (limited amount of possibilities) or predictable then your crypto is useless". Right, hence the question. Producing keys doesn't have to be (and probably shouldn't be) tied to any particular cryptographic app, and I've no plans to build a cryptographic app, no "rolling my own" in sight. What I'd like, is a way to generate keys that is easy and secure and accessible. Everyone knows how to take a picture, whether with the camera or through an app.
Sep
14
comment Is generating random numbers using a smartphone camera a good idea?
@LucasKauffman I'm not "rolling my own" - if an input source is truly random then what have I rolled? That I wrote some code to access a camera or a microphone? Do I need to be a cryptographer to write a program that reads from an input source? Strangely, no, I don't think so. When I release my successor to AES, then your point will have some merit.
Sep
14
comment Is generating random numbers using a smartphone camera a good idea?
Thanks for the detailed answer, I was unaware of the firmware issue, I'd already noticed a wide array of RAW formats though :/ On the subject of "Holder could recognise by sight, and yet could also deny was a key?" wouldn't any photo be, essentially, random? Time, subject, environment, camera, and angle would essentially make it a unique object (disregarding processing). Like this Dilbert comic search.dilbert.com/comic/Random%20Number%20Generator.
Sep
14
comment Is generating random numbers using a smartphone camera a good idea?
@LucasKauffman That doesn't answer my question, and I don't see why you or anyone else should tell me what to do with my time, frankly.
Sep
14
asked Is generating random numbers using a smartphone camera a good idea?
Jul
27
awarded  Yearling
Jul
26
comment In which ways could a javascript making a cross domain HEAD request be a threat?
Thanks for being so thorough. It wasn't so much that I wanted to see the preflight OPTIONS, I understood that it would probably be done in the background, more that I couldn't see why a HEAD was considered in the same kind of threat level as a GET or POST, but I see what you're saying. Your taking the time to answer is much appreciated.
Jul
26
accepted In which ways could a javascript making a cross domain HEAD request be a threat?
Jul
26
comment In which ways could a javascript making a cross domain HEAD request be a threat?
@aspillers I was unaware that answer was complete, thanks. Yes, basically :)
Jul
26
comment In which ways could a javascript making a cross domain HEAD request be a threat?
@RobW in that case yes, but with an XMLHttpRequest the OPTIONS request will be doing more than a HEAD request, so why is it blocked for that?