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MCP-10: Add RelayAttestation v1 wire codec and validators#27

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aeyakovenko wants to merge 306 commits intoanza-xyz:masterfrom
aeyakovenko:issue-9-mcp-relay-attestation
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MCP-10: Add RelayAttestation v1 wire codec and validators#27
aeyakovenko wants to merge 306 commits intoanza-xyz:masterfrom
aeyakovenko:issue-9-mcp-relay-attestation

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@aeyakovenko aeyakovenko commented Feb 8, 2026

Summary

  • add ledger/src/mcp_relay_attestation.rs implementing RelayAttestation v1 wire encoding/decoding
  • enforce exact spec invariants during decode:
    • version must be 1
    • entries must be strictly sorted by proposer_index
    • duplicate proposer entries rejected
    • trailing bytes rejected
  • add deterministic serializer/signing preimage helpers
  • add relay-signature and proposer-signature verification helpers
  • add unit tests covering roundtrip, determinism, signature checks, and rejection paths

Why this shape

  • keeps MCP wire logic isolated and deterministic
  • keeps existing shred pipeline types unchanged
  • gives replay/leader paths a strict, reusable attestation validator

Tests

  • cargo test -p solana-ledger --lib mcp_relay_attestation::tests -- --nocapture

Fixes #9

@aeyakovenko aeyakovenko force-pushed the issue-9-mcp-relay-attestation branch from dcf2ee0 to 913087c Compare February 8, 2026 15:24
@aeyakovenko
mcp-09: persist verified relay shreds and prune cache
97a50d7
@aeyakovenko
mcp-16: add stateful proposer reconstruction tracker
fa57a26
@aeyakovenko
mcp: accept legacy tx bytes and apply fee components
9c69a9f
@aeyakovenko
mcp-02: add domain-separated proposer/relay schedules
e5bfc4a
@aeyakovenko
turbine: derive MCP roles from slot schedules
93a5050
@aeyakovenko
mcp-02: add domain-separated proposer/relay schedules
e2cff1f
@aeyakovenko
core: verify MCP shred roles against slot schedules
aafd471
@aeyakovenko
mcp: harden legacy/latest transaction parsing
f2ba73c
@aeyakovenko
mcp-01: add MCP v1 feature gate and protocol constants
570d8e1
@aeyakovenko
banking-stage: enforce MCP fee payer tracker in scheduler
6e7e6d5
@aeyakovenko
mcp-06: add MCP erasure encode/reconstruct helper
a4b0325
@aeyakovenko
mcp-01: add MCP v1 feature gate and protocol constants
4a9d025
@aeyakovenko
turbine: RS-encode MCP proposer dispatch and harden state
d186a76
@aeyakovenko
mcp-01: add MCP v1 feature gate and protocol constants
a93a0ab
@aeyakovenko
core: harden MCP relay verification and fallback handling
0b2790c
@aeyakovenko
mcp-01: add MCP v1 feature gate and protocol constants
1879ea1
@aeyakovenko
core: validate relay attestation entry bounds and encoding
6e623c6
@aeyakovenko
mcp-01: add MCP v1 feature gate and protocol constants
085a08b
@aeyakovenko
ledger: preserve aggregate signature validity under filtering
8a5bd1b
@aeyakovenko
ledger: domain-separate consensus block signatures
2ba7c98
@aeyakovenko
mcp-01: add MCP v1 feature gate and protocol constants
e3cc3cc
@aeyakovenko
core: harden MCP vote gate fallback and thresholds
3ead825
@aeyakovenko
mcp-01: add MCP v1 feature gate and protocol constants
4056f16
@aeyakovenko
ledger: preserve reconstruction shards on failure
e98b284
@aeyakovenko
mcp-01: add MCP v1 feature gate and protocol constants
3883b3a
@aeyakovenko
runtime: gate MCP fee components behind feature flag
1ada6b4
@aeyakovenko
ledger: centralize MCP schedule and erasure constants
32fb71b
@aeyakovenko
ledger: centralize MCP schedule and erasure constants
5056f82
@aeyakovenko
ledger: keep relay attestations when filtering invalid proposer entries
0461276
@aeyakovenko
mcp: harden integration paths and strict local-cluster validation
f624b04
@aeyakovenko
mcp: harden replay bridge and local-cluster integration checks
6d9be2c
@aeyakovenko
plan: sync MCP audit follow-ups and integration invariants
ecc7d67
@aeyakovenko
mcp: harden issue-20 5-node integration and align replay safety
fff3e42
@aeyakovenko
plan: encode MCP cutover and blocker decisions
fcb13dc
@aeyakovenko
mcp: align plan policy details and refresh audit blockers
4666348
@aeyakovenko
plan: integrate 81bc269-compatible deltas and refresh audit
d021ca2
@aeyakovenko
plan: sync to authoritative internal commit 81bc269
9d394e1
@aeyakovenko
mcp: resolve audit gaps and align plan with implementation
8a39669
@aeyakovenko
mcp: tighten replay prep and block_id sidecar wiring
254e8a0
@aeyakovenko
mcp: enforce consensus-observed strict replay and re-audit plan align…
2711778 
…ment
@aeyakovenko
mcp: close audit gaps and re-audit integrated PR behavior
7079e17
@aeyakovenko
mcp: make relay attestation enqueue non-blocking
503cade
@aeyakovenko
mcp: close remaining audit gaps and sync plan
6258708
@aeyakovenko
mcp: close remaining audit blockers for replay and proposer admission
a019ec5
@aeyakovenko
Close remaining MCP audit gaps and sync plan/audit
0dfd668
@aeyakovenko
Stabilize MCP audit items and fix relay range test expectations
b074eeb
@aeyakovenko
Merge issue-20 MCP integration into master
b819a89 
# Conflicts:
#	ledger/src/shred/mcp_shred.rs
#	plan.md
@aeyakovenko
audit: mark master as integrated MCP audit baseline
edba27f
@aeyakovenko
mcp: harden local-cluster integration checks and sync audit
80bec69
@aeyakovenko
mcp: confirm audit concerns and harden relay attestation check
f8a6de5
@aeyakovenko
mcp: close confirmed audit test gaps and refresh audit
988ca10
@aeyakovenko
mcp: close repair indexing and strict block-id audit blockers
65568a2
@aeyakovenko
mcp: fix audit regressions in replay deferral and block component decode
a45c302
@aeyakovenko
mcp: expand audit coverage for repair and block component paths
c95a559
@aeyakovenko
Wire MCP admission/dispatch/replay gaps and sync plan+audit
f2a87a1
@aeyakovenko
mcp: preserve relay attestation signatures in ingest
db320af
@aeyakovenko
mcp: close audit gaps and align plan with implementation
2f6e8a1
@aeyakovenko
mcp: close latest audit gaps in replay and dispatch
c0fbf8c
@aeyakovenko
mcp: address latest audit findings on repair and replay
e12d490
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MCP-10 Relay: record attestation

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@aeyakovenko