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collator-protocol: add message authentication (#2635)

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* collator: authenticate collator protocol messages

* fix tests compilation

* node: verify collator protocol signatures in tests

* collator: fix tests

* implementers-guide: update CollatorProtocol messages

* collator: add test for verification of collator protocol signatures

* node: remove fixmes

* node: remove signature from advertisecollation message

* node: add magic constant to Declare message signature payload
This commit is contained in:
André Silva
2021-03-24 21:13:32 +00:00
committed by GitHub
parent 358fa9f22a
commit bfbb078525
12 changed files with 255 additions and 109 deletions
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polkadot/roadmap/implementers-guide/src/types/network.md
+5 -4
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@@ -102,10 +102,11 @@ enum StatementDistributionV1Message {
```rust
enum CollatorProtocolV1Message {
/// Declare the intent to advertise collations under a collator ID.
Declare(CollatorId),
/// Advertise a collation to a validator. Can only be sent once the peer has declared
/// that they are a collator with given ID.
/// Declare the intent to advertise collations under a collator ID, attaching a
/// signature of the `PeerId` of the node using the given collator ID key.
Declare(CollatorId, CollatorSignature),
/// Advertise a collation to a validator. Can only be sent once the peer has
/// declared that they are a collator with given ID.
AdvertiseCollation(Hash, ParaId),
/// Request the advertised collation at that relay-parent.
RequestCollation(RequestId, Hash, ParaId),