Hi, is there any specific rationale why the quality of the hid-u2fzero.c hw rng is set to 1, meaning that only 1 bit of entrop is added per 1024 bits of input (see drivers/char/hw_random/core.c)? That actually means that currently no entropy is credited at all, as this driver will return not more than 64 bytes (= rc), and then rc * current_quality * 8 >> 10 evaluates to 0. While this is addressed by a patch I just submitted,[*] I'd like to know whether this low quality setting is correct. Thanks, Dominik [*] https://lore.kernel.org/linux-crypto/20220124202951.28579-6-linux@xxxxxxxxxxxxxxxxxxxx/
