RFC virtio-rng based entropy leak reporting
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- v1 RFC Latest3 patches 36 repliesIn review
Patches in v1 No applies recorded yet
| # | Subject and files | Size | Replies | Applied |
|---|---|---|---|---|
| 1/3 | rng: move to a file of its owncontent.tex virtio-rng.tex | +43 | 0 replies | |
| 2/3 | rng: be specific about the virtqueuevirtio-rng.tex | +5 | 0 replies | |
| 3/3 | rng: leak detection supportvirtio-rng.tex | +60 | 33 replies |
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Cover letter [virtio-comment] [PATCH RFC 0/3] virtio-rng based entropy leak reporting
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
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
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