Re: [PATCH v1 3/3] KEYS: trusted: Introduce support for NXP CAAM-based trusted keys
From: Eric Biggers <ebiggers@kernel.org>
Date: 2021-03-30 21:48:02
Also in:
keyrings, linux-crypto, linux-integrity, linux-security-module, lkml
On Sun, Mar 28, 2021 at 11:37:23PM +0300, Jarkko Sakkinen wrote:
Unfortunately, TPM trusted keys started this bad security practice, and obviously it cannot be fixed without breaking uapi backwards compatibility.
The whole point of a randomness source is that it is random. So userspace can't be depending on any particular output, and the randomness source can be changed without breaking backwards compatibility. So IMO, trusted keys should simply be fixed to use get_random_bytes(). - Eric