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| author |   Dominik Brodowski <linux@dominikbrodowski.net> | 2022-09-22 15:59:31 +0200 |
|---|---|---|
| committer |   Herbert Xu <herbert@gondor.apana.org.au> | 2022-09-30 13:59:12 +0800 |
| commit | b006c439d58db625318bf2207feabf847510a8a6 (patch) | |
| tree | c8f96d6e00fe791fe54c787d2dacd274e1598318 /drivers/fpga/fpga-bridge.c | |
| parent | crypto: zip - remove the unneeded result variable (diff) | |
| download | wireguard-linux-b006c439d58db625318bf2207feabf847510a8a6.tar.xz wireguard-linux-b006c439d58db625318bf2207feabf847510a8a6.zip | |
hwrng: core - start hwrng kthread also for untrusted sources
Start the hwrng kthread even if the hwrng source has a quality setting
of zero. Then, every crng reseed interval, one batch of data from this
zero-quality hwrng source will be mixed into the CRNG pool.
This patch is based on the assumption that data from a hwrng source
will not actively harm the CRNG state. Instead, many hwrng sources
(such as TPM devices), even though they are assigend a quality level of
zero, actually provide some entropy, which is good enough to mix into
the CRNG pool every once in a while.
Cc: Herbert Xu <herbert@gondor.apana.org.au>
Cc: Jason A. Donenfeld <Jason@zx2c4.com>
Signed-off-by: Dominik Brodowski <linux@dominikbrodowski.net>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Diffstat (limited to 'drivers/fpga/fpga-bridge.c')
0 files changed, 0 insertions, 0 deletions