怀疑intel cpu PRNG有问题是合理的,但是有具体证据么?比如别人发出来的paper之类? /dev/random之类随机数生成器的熵的确有从cpu里来的,但是大部分还是其他来源,比如启动时间,pid什么的
Linus Torvalds dismissed concerns about the use of RdRand in the Linux kernel, and pointed out that it is not used as the only source of entropy for /dev/random, but rather used to improve the entropy by combining the values received from RdRand with other sources of randomness