On Wed, Feb 09, 2022 at 02:19:18AM +0100, Jason A. Donenfeld wrote: > Since we have a hash function that's really fast, and the goal of > crng_slow_load() is reportedly to "touch all of the crng's state", we > can just hash the old state together with the new state and call it a > day. This way we dont need to reason about another LFSR or worry about > various attacks there. This code is only ever used at early boot and > then never again. > > Cc: Theodore Ts'o <tytso@xxxxxxx> > Cc: Dominik Brodowski <linux@xxxxxxxxxxxxxxxxxxxx> > Signed-off-by: Jason A. Donenfeld <Jason@xxxxxxxxx> > --- > drivers/char/random.c | 42 +++++++++++++++--------------------------- > 1 file changed, 15 insertions(+), 27 deletions(-) Reviewed-by: Eric Biggers <ebiggers@xxxxxxxxxx> - Eric
