3 ms·
This comment in linux/arch/x86/kernel/cpu/rdrand.c claims: /* * Force a reseed cycle; we are architecturally guaranteed a reseed * after no more
by caf 13y ago
This comment in linux/arch/x86/kernel/cpu/rdrand.c claims:
/*
* Force a reseed cycle; we are architecturally guaranteed a reseed
* after no more than 512 128-bit chunks of random data. This also
* acts as a test of the CPU capability.
*/
- pbsd 13y agoFTR, that limit is also mentioned in the Intel manual [1, 3.2.3], and in the Cryptography Inc report [2, 2.4.2]. [1] http://software.intel.com/en-us/articles/intel-digital-random-number-generator-drng-software-implementation-guide/ http://software.intel.com/en-us/articles/intel-digital-rando... [2] http://www.cryptography.com/public/pdf/Intel_TRNG_Report_20120312.pdf http://www.cryptography.com/public/pdf/Intel_TRNG_Report_201...