feat: verifiable ceremony randomness via an HKDF entropy source#82
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feat: verifiable ceremony randomness via an HKDF entropy source#82lomigmegard wants to merge 1 commit into
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Introduce a single, auditable source for every random value a ceremony consumes. A per-run seed is gathered from the host OS RNG and recorded; values such as certificate serials and nonces are derived from it with an HKDF-SHA-256 ratchet (scheme rite-kdf/v1) and recorded alongside their derivation path, so `rite verify` can re-derive each one and confirm it was not cherry-picked. Participants can fold their own entropy into the seed with a new gather_entropy action, for example by rolling dice.
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Introduce a single, auditable source for every random value a ceremony consumes. A per-run seed is gathered from the host OS RNG and recorded; values such as certificate serials and nonces are derived from it with an HKDF-SHA-256 ratchet (scheme rite-kdf/v1) and recorded alongside their derivation path, so
rite verifycan re-derive each one and confirm it was not cherry-picked. Participants can fold their own entropy into the seed with a new gather_entropy action, for example by rolling dice.