Hi, This patch set adds SP800-90B compliance to the Jitter RNG. The SP800-90B patch is tested for more than half a year in user space with the Jitter RNG version 2.2.0. The full SP800-90B assessment of the Jitter RNG is provided at [1]. In addition, the DRBG implementation is updated to always be reseeded from the Jitter RNG. To ensure the DRBG is reseeded within an appropriate amount of time, the reseed threshold is lowered. Changes v2: * Instead of free/alloc of the Jitter RNG instance in case of a health test error, re-initialize the RNG instance by performing the power-up test and after a success, clear the health test status and error. [1] http://www.chronox.de/jent/doc/CPU-Jitter-NPTRNG.pdf Stephan Mueller (2): crypto: Jitter RNG SP800-90B compliance crypto: DRBG always seeded with SP800-90B compliant noise source crypto/drbg.c | 26 ++- crypto/jitterentropy-kcapi.c | 27 +++ crypto/jitterentropy.c | 417 ++++++++++++++++++++++++++--------- include/crypto/drbg.h | 6 +- 4 files changed, 363 insertions(+), 113 deletions(-) -- 2.25.2
