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ZIP-0814

TxAuthEnvelope — Zoo mirror of HIP-0086

Draft

Zoo-side mirror of Hanzo HIP-0086. Pins the typed PQ transaction-signing envelope under ZOO_STRICT_PQ. ML-DSA-65 signature over a TupleHash256 transcript bound by cust string TX-AUTH-V1; verifier is unmodified FIPS 204. Heavy spec lives in HIP-0086.

Type
Standards Track
Category
Core
Author
Zoo Labs Foundation
Created
2026-05-11
pqml-dsatx-authenvelopetuple-hashmirrorhip-0086

ZIP-0814: TxAuthEnvelope

Abstract

ZIP-0814 mirrors HIP-0086 into Zoo Network. Every Zoo strict-PQ transaction is signed via a TxAuthEnvelope whose transcript is built using TupleHash256 (SP 800-185) with cust string TX-AUTH-V1 over (profile_id, chain_id, account_id, nonce, payload_hash, identity_scheme_id, hash_suite_id). Signature is ML-DSA-65; the verifier is unmodified FIPS 204 ML-DSA.Verify.

Mirrored profile

ProfileID:           0x04  (ProfileZooStrictPQ)
ProfileName:         ZOO_STRICT_PQ
HashSuiteID:         SHA3_NIST                (0x01)
IdentitySchemeID:    ML_DSA_65                (0x42)
FinalitySchemeID:    PULSAR_M_65              (0x52)
HighValueSchemeID:   PULSAR_M_87              (0x53)
ProofPolicyID:       STARK_FRI_SHA3_PQ        (0x10)
MinSoundnessBits:    128
MinHashOutputBits:   384
RequireTransparent:  true
ForbidPairings:      true
ForbidKZG:           true
ForbidTrustedSetup:  true
ForbidClassicalSNARKs: true
ForbidDevProofs:     true
ForbidFallbacks:     true

Zoo-specific bindings

  • luxfi/consensus/protocol/auth/tx_envelope.go is reused; Zoo imports the same canonical encoder/decoder.
  • Zoo mainnet acceptance: a transaction lacking a valid TxAuthEnvelope is rejected at mempool admission. No secp256k1 RLP fallback on ZOO_STRICT_PQ.
  • ZRC-20/721/1155 transfer flows construct TxAuthEnvelopes via the same wallet bindings as Lux.
  • KAT vectors reused from luxfi/consensus/protocol/auth/testdata/tx_envelope_v1.json.

Compliance

A Zoo validator on ZOO_STRICT_PQ MUST refuse transactions that do not carry a valid TxAuthEnvelope. Cross-ecosystem bridges (ZIP-0042, ZIP-0808) MAY accept Lux-signed envelopes when the profile-byte-equality check passes per ZIP-0818.

Governance

Zoo Labs Foundation owns this ZIP via the canonical zips.zoo.ngo process. Activation requires sibling activation of ZIP-0809 / 0810 / 0811 / 0812 and ZIP-0813.

References

  • HIP-0086 — canonical source of truth.
  • LP-173 — Lux-side mirror.
  • ZIP-0813 — AccountID.
  • ZIP-0014 — Zoo KMS Integration via Lux KMS.
  • NIST FIPS 204, FIPS 202, SP 800-185.
  • luxfi/consensus/protocol/auth/tx_envelope.go.