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K. Healy" Date: Sat, 9 Nov 2019 13:28:59 +0000 Message-ID: Subject: Re: Remove PRNG from Linux Kernel To: linux-crypto@vger.kernel.org Content-Type: text/plain; charset="UTF-8" Sender: linux-crypto-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-crypto@vger.kernel.org I've done performance testing, and I can generate 50 kilobytes of random data in 6.9 seconds using the TMP2 hardware. This is adequate. The boot-up state of my embedded device is very predictable, and so I don't want any mathematical algorithms for psudeo-randomness present on my device. I am cutting them all out. I don't want to use the TPM2 to feed entropy into the Linux kernel's PRNG. Instead I wish to remove the PRNG from the kernel and replace it with a direct call to the TPM2 chip. Performance is not an issue here.