Thread-safe RNG Android NDK

Question

Is there a thread-safe RNG in Bionic? For Linux, I know there is rand_r(), but this is unfortunately not a part of the NDK.

The Linux man pages say `rand_r` is obsolete. `random_r` seems to be current... but it too doesn't exist in bionic. There are a lot of open-source RNGs out there, tuned to different things (speed, low periodicity, etc), so you may just want to grab one and build it in. — fadden, Dec 11 '12 at 01:10

score 0 · Accepted Answer · answered Dec 11 '12 at 03:32

0

You can simply read from /dev/urandom/ to get pseudo-random bytes. If you need this for cryptographic purposes, you may want to look into OpenSSL as well.

answered Dec 11 '12 at 03:32

Nikolay Elenkov

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Thread-safe RNG Android NDK

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