[APK] Seeder entropy generator to provide significant lag reduction

#1

Post by wisesage5001 » Thu, Jan 03, 2013, 4:25 PM UTC

[APK] Seeder entropy generator to provide significant lag reduction
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Re: [APK] Seeder entropy generator to provide significant lag reduction

#2

Post by supergauntlet » Thu, Jan 03, 2013, 5:02 PM UTC

I thought it was pretty silly how he went through all this trouble to essentially do the same thing as symlinking /dev/random and /dev/urandom.

Re: [APK] Seeder entropy generator to provide significant lag reduction

#3

Post by DanBC » Thu, Jan 03, 2013, 5:18 PM UTC

Adding /dev/urandom seems like a suboptimal solution. Crypto is hard, and very clever people get bitten by flaws in things like randomness and seeding prngs.

Re: [APK] Seeder entropy generator to provide significant lag reduction

#4

Post by supergauntlet » Thu, Jan 03, 2013, 5:43 PM UTC

DanBC wrote: post #3

Adding /dev/urandom seems like a suboptimal solution. Crypto is hard, and very clever people get bitten by flaws in things like randomness and seeding prngs.

I think the problem they were trying to fix/remedy was that /dev/random was getting called for ALL random functions in the JVM. So every time an android app called for a random number, it would go to /dev/random.

Nobody would suggest using /dev/urandom for cryptography, but it's sufficient for a random number call, especially because /dev/random is blocking.