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Update ERC-8211 canonicalization from merkle to composable #27

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Merged
GsCommand merged 1 commit into from
May 22, 2026
+8 −6
Merged

Update ERC-8211 canonicalization from merkle to composable #27

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8 changes: 5 additions & 3 deletions src/compat.ts
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Original file line number Diff line number Diff line change
Expand Up @@ -191,7 +191,7 @@ export function verifyCommandLayerReceipt(
errors.push("ERR_MISSING_SIGNATURE_KID");
}

const allowed = opts.allowedCanonicals ?? [CANONICAL_METHOD, "erc8211.merkle.v1"];
const allowed = opts.allowedCanonicals ?? [CANONICAL_METHOD, "erc8211.composable.v1"];
if (typeof proof.canonicalization === "string" && !allowed.includes(proof.canonicalization)) {
errors.push("ERR_UNSUPPORTED_CANONICALIZATION");
}
Expand Down Expand Up @@ -221,8 +221,10 @@ export function verifyCommandLayerReceipt(

let canonical = "";
if (checks.schema) {
if (proof.canonicalization === "erc8211.merkle.v1") {
errors.push("ERR_UNSUPPORTED_MERKLE_VERIFICATION");
if (proof.canonicalization === "erc8211.composable.v1") {
// ERC-8211 composable execution canonicalization recognized.
// Merkle authorization verification is deferred pending the companion Merkle authorization ERC.
errors.push("ERR_MERKLE_AUTHORIZATION_DEFERRED");
return { ok: false, status: "INVALID", checks, errors };
}
canonical = buildCanonicalProof(receipt);
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6 changes: 3 additions & 3 deletions test/compat.test.ts
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Expand Up @@ -172,14 +172,14 @@ describe("canonical CLAS proof envelope", () => {
assert.ok(result.errors.includes("ERR_MALFORMED_SIGNATURE_ARRAY"));
});

test("erc8211 canonicalization is recognized but not falsely verified", () => {
test("erc8211 composable canonicalization is recognized, Merkle authorization verification deferred", () => {
const signed = signCommandLayerReceipt(baseReceipt, { privateKeyPem: kp.privateKeyPem, kid: "testKid" });
const recognized = verifyCommandLayerReceipt(
{ ...signed, metadata: { ...signed.metadata!, proof: { ...signed.metadata!.proof!, canonicalization: "erc8211.merkle.v1" } } },
{ ...signed, metadata: { ...signed.metadata!, proof: { ...signed.metadata!.proof!, canonicalization: "erc8211.composable.v1" } } },
{ publicKeyPemOrDer: kp.publicKeyPem }
);
assert.equal(recognized.status, "INVALID");
assert.ok(recognized.errors.includes("ERR_UNSUPPORTED_MERKLE_VERIFICATION"));
assert.ok(recognized.errors.includes("ERR_MERKLE_AUTHORIZATION_DEFERRED"));
assert.ok(!recognized.errors.includes("ERR_UNSUPPORTED_CANONICALIZATION"));

const unsupported = verifyCommandLayerReceipt(
Expand Down
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