zephyr

Commit Graph

Author	SHA1	Message	Date
Ramakrishna Pallala	a895d21d63	subsys: random: Fix semaphore initial count of xoroshiro128 Semaphore state_sem initial count is set to 0 but k_sem_give() is invoked first in sys_rand32_get() which will block the caller forever. Fix the issue by setting the initail count to count_limit. Signed-off-by: Ramakrishna Pallala <ramakrishna.pallala@intel.com>	2017-11-15 15:47:10 -06:00
Leandro Pereira	5a272b027a	subsys/random: Add Xoroshiro128+ PRNG This adds an implementation of Xoroshiro128+ PRNG, based on the original implementation at [1]. This pseudorandom number generator will use the entropy driver to obtain the seed. While it uses only 128 bits of state, it's pretty robust for non-crypto safe applications. [1] http://vigna.di.unimi.it/xorshift/xoroshiro128plus.c Signed-off-by: Leandro Pereira <leandro.pereira@intel.com>	2017-11-01 08:26:29 -04:00

Author

SHA1

Message

Date

Ramakrishna Pallala

a895d21d63

subsys: random: Fix semaphore initial count of xoroshiro128

Semaphore state_sem initial count is set to 0 but k_sem_give()
is invoked first in sys_rand32_get() which will block the caller
forever.

Fix the issue by setting the initail count to count_limit.

Signed-off-by: Ramakrishna Pallala <ramakrishna.pallala@intel.com>

2017-11-15 15:47:10 -06:00

Leandro Pereira

5a272b027a

subsys/random: Add Xoroshiro128+ PRNG

This adds an implementation of Xoroshiro128+ PRNG, based on the
original implementation at [1].  This pseudorandom number generator
will use the entropy driver to obtain the seed.

While it uses only 128 bits of state, it's pretty robust for non-crypto
safe applications.

[1] http://vigna.di.unimi.it/xorshift/xoroshiro128plus.c

Signed-off-by: Leandro Pereira <leandro.pereira@intel.com>

2017-11-01 08:26:29 -04:00

2 Commits