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Update spec to the new DKG

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Luke Parker
2024-08-05 06:58:44 -04:00
parent e74c8f38d5
commit 2ae2883106
3 changed files with 17 additions and 75 deletions
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spec/processor/Processor.md
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@@ -9,29 +9,22 @@ This document primarily discusses its flow with regards to the coordinator.
### Generate Key
On `key_gen::CoordinatorMessage::GenerateKey`, the processor begins a pair of
instances of the distributed key generation protocol specified in the FROST
paper.
instances of the distributed key generation protocol.
The first instance is for a key to use on the external network. The second
instance is for a Ristretto public key used to publish data to the Serai
blockchain. This pair of FROST DKG instances is considered a single instance of
Serai's overall key generation protocol.
The first instance is for a Ristretto public key used to publish data to the
Serai blockchain. The second instance is for a key to use on the external
network. This pair of DKG instances is considered a single instance of Serai's
overall DKG protocol.
The commitments for both protocols are sent to the coordinator in a single
`key_gen::ProcessorMessage::Commitments`.
The participations in both protocols are sent to the coordinator in a single
`key_gen::ProcessorMessage::Participation`.
### Key Gen Commitments
### Key Gen Participations
On `key_gen::CoordinatorMessage::Commitments`, the processor continues the
specified key generation instance. The secret shares for each fellow
participant are sent to the coordinator in a
`key_gen::ProcessorMessage::Shares`.
#### Key Gen Shares
On `key_gen::CoordinatorMessage::Shares`, the processor completes the specified
key generation instance. The generated key pair is sent to the coordinator in a
`key_gen::ProcessorMessage::GeneratedKeyPair`.
On `key_gen::CoordinatorMessage::Participation`, the processor stores the
contained participation, verifying participations as sane. Once it receives `t`
honest participations, the processor completes the DKG and sends the generated
key pair to the coordinator in a `key_gen::ProcessorMessage::GeneratedKeyPair`.
### Confirm Key Pair