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Clarify documentation on randomizer reuse #475

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hdevalence opened this issue Aug 15, 2023 · 0 comments
Open

Clarify documentation on randomizer reuse #475

hdevalence opened this issue Aug 15, 2023 · 0 comments
Milestone
Re-randomizable F...

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@hdevalence
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The docs for randomize say

You MUST NOT reuse the randomized key package for more than one signing.

https://github.com/ZcashFoundation/frost/blob/main/frost-rerandomized/src/lib.rs#L55

It would be helpful to clarify what the impact of randomizer reuse is -- does reusing the randomizer just result in linkability between signatures, or does it compromise key material?
@dconnolly dconnolly self-assigned this Aug 29, 2023
@mpguerra mpguerra added this to the Re-randomizable FROST milestone Sep 6, 2023
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FROST
Status: Product Backlog
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Re-randomizable FROST
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@hdevalence @dconnolly @mpguerra