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accepted Client-server communication
Oct
28
comment Client-server communication
My point was to add no risk and this sounds as good (and simple) as it can get!
Oct
28
comment Advantages of combined PRNGs
Agreed, but there could be something else broken with the OS PRNG (what could block my attempts to add entropy), so I'd prefer to combine it with my own (even if my own seeding was far from perfect; still better than 2**15).
Oct
27
comment Advantages of combined PRNGs
Concerning practical use: Imagine your OS PRNG works just like Debian OpenSSL 2006-2008. Wouldn't you recommend to add some own stuff in order to counter this?
Oct
27
asked Client-server communication
Oct
27
accepted Encrypt a file for random access but only after an initial read of the whole file
Oct
27
comment Encrypt a file for random access but only after an initial read of the whole file
@otus Yes, that was the intention. Although I wrote "decrypted", my point was to require some "useful" work to be done at the beginning. I guess, with AONT I get authentication, so this hashing qualifies as useful work?
Oct
21
asked Encrypt a file for random access but only after an initial read of the whole file
Oct
21
accepted Bouncy Castle and Salsa 20
Oct
21
answered Bouncy Castle and Salsa 20
Oct
14
comment Bouncy Castle and Salsa 20
@owlstead I've looked already into the sources and it looks fine (for a non-cryptographer). It was the lack of checking of anything what made me to ask as passing any nonsense worked, too. I'll probably edit out the code as suggested and turn it into a regular question for here.
Oct
13
comment Bouncy Castle and Salsa 20
@Nova I know SO pretty well. I know, there are Java experts there, but I do know myself enough. But the documentation is lacking at best and the interface allows about every nonsense you can think of. BC has a mailing list, I'm giving it a try.
Oct
13
comment Bouncy Castle and Salsa 20
@Nova OK, BC forum sounds good. Java forum is non-sense, as most people there know close to nothing about crypto and the few who just do don't come along.
Oct
13
revised Bouncy Castle and Salsa 20
added 469 characters in body
Oct
13
comment Bouncy Castle and Salsa 20
@ddddavidee How is it different from e.g. this one or this one? I just didn't ask explicitly about what key derivation algorithm should I use, etc., but the question is there. And assuming it's not appropriate here, where should it be? Buddhism? Pets? Just don't say SO or CR, as the kind of knowledge I need is not there.
Oct
13
comment Bouncy Castle and Salsa 20
Downvoter, feel free to add an answer. If the code is crap... well, then I'm right as I expected it.
Oct
13
asked Bouncy Castle and Salsa 20
Mar
7
awarded  Yearling
Jan
16
comment Keyed-hash of a lot of small numbers
I'm definitely no expert here, but couldn't a stream cipher encrypted data be used instead of both (storing the data twice makes no sense to me)?
Nov
12
answered How does secret sharing solve the partial exposure problem?