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add information on all-or-nothing nature of BLS verification

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William Banfield
2022-04-20 19:14:59 -04:00
parent 8e8e24f450
commit 0674d5231f
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docs/rfc/rfc-018-bls-agg-exploration.md
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@@ -185,6 +185,13 @@ block data more quickly.
Additionally, the faster signature verification times of BLS signatures mean
that light client verification would proceed more quickly.
However, verification of an aggregated signature is all-or-nothing. The verifier
cannot check that some singular signer had a signature included in the block.
Instead, the verifier must use all public keys to check if some signature
was included. This does mean that any light client implementation must always
be able to fetch all public keys for any height instead of potentially being
able to check if some singular validator's key signed the block.
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