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Jan
31
comment Exactly how bad is using 'mod' to clamp reduce numbers to a given range?
@RickyDemer: Yeah that factor of 2 is precisely what I was referring to. Your point about the stream cipher could be a good answer if you'd like to write one.
Jan
31
comment Exactly how bad is using 'mod' to clamp reduce numbers to a given range?
@RickyDemer: Yeah so that's already way less than the one-half I talked about (I think that's the max too? I didn't really think about it). My question stands exactly as-is: why is that a real problem for a system that is otherwise designed to be secure? Who cares if the attacker saves 1/6 of his time?
Jan
31
awarded  Curious
Jan
31
comment Exactly how bad is using 'mod' to clamp reduce numbers to a given range?
@RickyDemer: Can you elaborate? Give me an example? Pretend I'm dumb. That tells me nothing about your thought process.
Jan
31
comment Exactly how bad is using 'mod' to clamp reduce numbers to a given range?
To add to what @RickyDemer said, aren't current cryptographic systems far more difficult to crack than by a factor of 2? What's the problem here?
Jan
30
comment Exactly how bad is using 'mod' to clamp reduce numbers to a given range?
@those who migrated this question: I wasn't just talking about crypto though... imagine an attacker trying to DDoS a service by making it execute worst-case behavior on a hashtable. Or whatever.
Jan
30
asked Exactly how bad is using 'mod' to clamp reduce numbers to a given range?
Jan
16
comment Are there any advantages in using proprietary encryption?
@CodesInChaos: My answer applies to both cases though, doesn't it?
Jan
16
answered Are there any advantages in using proprietary encryption?
Nov
28
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Nov
28
comment Cryptographically secure keyed rolling hash function
Wow, I feel so dumb after reading this answer. Thanks for writing this!
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Jul
28
reviewed Approve How did LinkedIn “salt” all their passwords?