From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Sender: List-Post: List-Help: List-Unsubscribe: List-Subscribe: Received: from lists.oasis-open.org (oasis-open.org [10.110.1.242]) by lists.oasis-open.org (Postfix) with ESMTP id 192989865B2 for ; Thu, 12 Jan 2023 07:02:57 +0000 (UTC) Date: Thu, 12 Jan 2023 02:02:49 -0500 From: "Michael S. Tsirkin" Message-ID: <20230112020204-mutt-send-email-mst@kernel.org> References: <20221121162756.350032-1-mst@redhat.com> MIME-Version: 1.0 In-Reply-To: <20221121162756.350032-1-mst@redhat.com> Subject: [virtio-dev] Re: [PATCH RFC 0/3] virtio-rng based entropy leak reporting Content-Type: text/plain; charset=us-ascii Content-Disposition: inline To: virtio-comment@lists.oasis-open.org, virtio-dev@lists.oasis-open.org, "Cali, Marco" , "Graf (AWS), Alexander" , "Chalios, Babis" , "Jason A. Donenfeld" List-ID: On Mon, Nov 21, 2022 at 11:30:19AM -0500, Michael S. Tsirkin wrote: > Generally, entropy only grows. However, there are cases where > it goes down - for example, consider generating a one time > pad where someone managed to use a side channel to > steal its contents. By combining the seemingly random > pad with the stolen contents we have reversed the entropy. > > This actually happens within VMs e.g. when time is reversed due > to snapshoting. Existing approaches for VMs include Microsoft's > VM GEN ID. > > This draft proposes a feature in virtio rng for reporting such > leaks. > > Patches 1,2 refactor existing draft text. Patch 3 adds new functionality. > > TODO: > document theory of operation > add conformance clauses Guys any input on this? Anyone going to use this? > > Michael S. Tsirkin (3): > rng: move to a file of its own > rng: be specific about the virtqueue > rng: leak detection support > > content.tex | 43 +-------------------- > virtio-rng.tex | 102 +++++++++++++++++++++++++++++++++++++++++++++++++ > 2 files changed, 103 insertions(+), 42 deletions(-) > create mode 100644 virtio-rng.tex > > -- > MST > --------------------------------------------------------------------- To unsubscribe, e-mail: virtio-dev-unsubscribe@lists.oasis-open.org For additional commands, e-mail: virtio-dev-help@lists.oasis-open.org