Feat/seismic#116
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sforge's pragma resolver rejects strict-eq =0.8.26 against ssolc 0.8.31-develop (the only available Seismic build). Widen all 79 strict pragmas across src/, test/, script/ to ^0.8.26 — admits both the existing local solc 0.8.26 (so stock forge keeps working) and ssolc 0.8.31 (so sforge can build the Seismic MYieldToOne implementation). lib/common/src/* and OZ Upgradeable already use compatible ranges and need no touch. Audit-material subset (compiled into MYieldToOne deployment bytecode): src/MExtension.sol src/projects/yieldToOne/MYieldToOne.sol src/projects/yieldToOne/interfaces/IMYieldToOne.sol src/interfaces/IMExtension.sol src/interfaces/IMTokenLike.sol src/swap/interfaces/ISwapFacility.sol The other 73 files are test/script/sibling-project files outside MYieldToOne's compilation closure — no audit impact, widened only to satisfy sforge's whole-repo pragma scan. Reversible when Seismic ships ssolc-0.8.26: same sed in reverse.
…file - Convert MYieldToOne.balanceOf storage to suint256; gate public reader on msg.sender == account (Seismic signed read required externally) and override _revertIfInsufficientBalance to compare in shielded space with a zeroed revert payload. - Add Unauthorized error to IMYieldToOne; update harness setters/getters for the new shielded type. - Mark MExtension._revertIfInsufficientBalance virtual so extensions can override the balance-leak path. - Add foundry "seismic" profile (mercury EVM, ssolc-compatible) with no_match_path for out-of-scope sibling integration tests that fork mainnet (no eth_getFlaggedStorageAt). - Add scripts/seismic-env.sh repo-local toolchain bootstrap and ignore .seismic-toolchain/, .claude/, .planning/.
- .husky/pre-commit: when .seismic-toolchain/bin/sforge is present, prepend it to PATH and export FOUNDRY_PROFILE=seismic. Falls back to stock forge when the toolchain isn't installed (e.g. on non-Seismic branches), so this is a no-op for contributors who haven't bootstrapped sforge yet. - Makefile: have the `tests` (and siblings) target inherit FOUNDRY_PROFILE from the environment when set, so the hook's export reaches sforge. - test.sh: swap forge → sforge when FOUNDRY_PROFILE=seismic (stock solc can't parse shielded types like suint256). The hook now compiles shielded code via ssolc + mercury EVM instead of failing at parse time, which surfaces real unit-test fallout from the shielded-balance change (separate fix to follow).
MalteHerrmann
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just some preliminary comments
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| * outbound bridging. Returns the raw `suint256` so comparisons stay shielded. | ||
| */ | ||
| function _balanceOf(address account) internal view returns (suint256) { | ||
| return _getMYieldToOneStorageLocation().balanceOf[account]; | ||
| } |
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We could double-check with Seismic, not sure if this needs to return the shielded value since it's only used internal to the contract execution and that should not leak any insights into returned values.
Tracks the lib/common branch that marks the public IERC20 / IERC20Extended entry points (approve, transfer, transferFrom, allowance, permit) as `virtual`. Lets MYieldToOne override the inherited ERC20 API directly for the Seismic shielded variant. Pointer intentionally lives on a non-main branch in m0-foundation/common — scoped to this seismic work, not an org-wide ERC20Extended change.
Extends the balanceOf shielding from ba90d43 to cover transfer, transferFrom, approve, and permit. Adds a shielded allowance mapping and shielded-typed entry points alongside the inherited IERC20 ones (which now revert). - transfer/approve/transferFrom(address,suint256) — new shielded entries - transfer/approve/transferFrom(uint256) — kept in ABI, revert with UseShieldedTransfer / UseShieldedApprove - permit (both overloads) — revert with UseShieldedApprove - allowance(owner,spender) — gated like balanceOf; reads shielded mapping - InsufficientAllowance / InsufficientBalance revert payloads zero the shielded field (no value leak via revert) Storage appends shieldedAllowance to MYieldToOneStorageStruct (upgrade-safe). Inherited ERC20ExtendedStorageStruct.allowance slot is orphaned — never written, never read. Consequences: - m-portal-v2 Portal.transferFrom outbound bridging stops working (uint256 calldata); bridge via unwrap/wrap of M instead - No permit / EIP-3009 signed transfers (both encode uint256 in EIP-712) - Inheritors (MYieldToOneForcedTransfer, JMIExtension) pick up the new ABI for free; their existing IERC20-path tests are follow-up work Built + tested under FOUNDRY_PROFILE=seismic — 42/42 unit tests pass (40 unit + 2 fuzz @ 5000 runs).
Allows `swapFacility` as a second exempted caller of the gated `balanceOf(address)` view alongside the account itself. The SwapFacility immutable is shared M0 infra trusted to observe extension balances along its operational paths without forcing a Seismic signed read. The gate continues to revert for arbitrary callers — only the holder (via signed read) and the SwapFacility are allowed. Adds three regression tests: holder-can-read, unauthorized-third-party- reverts, swap-facility-can-read.
Add an admin-gated infra allowlist that conditionally re-enables the native uint256 approve/transferFrom/balanceOf paths for trusted M0 infrastructure (Portal, LimitOrderProtocol), while non-infra callers keep the shielded-only behavior. A central _isInfra helper (swapFacility immutable + allowlist) gates approve (on spender), transferFrom (on caller), and balanceOf (on caller). Native and shielded paths share the single shieldedAllowance slot; transfer and permit remain shielded-only. setAllowlisted (single + batch) is DEFAULT_ADMIN_ROLE gated.
User-to-user shielded transfers now emit a second Transfer overload —
Transfer(address indexed, address indexed, bytes) — carrying the
amount as an AES-GCM ciphertext derived from ECDH between the
contract's keypair and the recipient's registered pubkey, plus HKDF.
Adds storage slots 5–8 (publicKeys, _contractPublicKey,
contractPrivateKey, encryptedEventNonce) and four externals:
setContractKey (admin-only, one-shot, TxSeismic 0x4A operational
requirement), registerPublicKey, publicKeyOf, contractPublicKey.
Threads encryptEmit through _spendAllowanceAndTransfer and
_shieldedTransfer so the suint256 entry points emit the encrypted
overload while the infra-gated transferFrom(uint256) keeps the
inherited plaintext Transfer(uint256). Mint, burn, forced transfers,
and approvals are untouched.
Nonce uses a contract-wide monotonic counter
(bytes12(keccak256(from, to, ++counter))) instead of the tutorial's
block-number formulation, avoiding AES-GCM nonce reuse when the same
(from, to) pair transfers twice in a block.
Unregistered-recipient fallback emits Transfer(from, to, bytes(""))
— transfer still succeeds, amount recoverable only via the
recipient's gated balanceOf read.
Open questions filed in docs/seismic-question-encrypted-events-ux.md
re sbytes32 zero-sentinel reads, nonce strategy, and precompile
input layouts. Cited from setContractKey and the three precompile
wrappers' NatSpec for the auditor.
…sion Adds 17 new unit tests for the encrypted-events phase (commit 9ba313e): setContractKey — admin-only, one-shot, length validation, emit registerPublicKey — write, idempotent overwrite, length validation, emit shielded transfer/transferFrom — bytes-overload emit + nonce increment shielded transfer with unregistered recipient — empty-bytes fallback shielded transfer with unset contract key — ContractKeyNotSet infra transferFrom(uint256) — plaintext Transfer(uint256) overload only mint/burn — plaintext Transfer(uint256) overload only Precompiles 0x65 / 0x66 / 0x68 are mocked via vm.mockCall — they are not available in the local sforge environment; on-chain semantics will be validated on Seismic devnet (and during Seismic's review of the open questions in docs/seismic-question-encrypted-events-ux.md). Updates the two pre-existing tests that asserted the plaintext Transfer emit on the shielded user-to-user path: test_transfer test_transferFrom_finiteAllowanceDecrements Both now assert the bytes-variant emit (empty payload, since the test recipient is not registered — the fallback branch fires before the contract-key check). Extends MYieldToOneHarness with getEncryptedEventNonce() to read slot 8 without recomputing the ERC-7201 offset (mirrors the existing getBalanceOf / getShieldedAllowance pattern). Extends [profile.seismic].no_match_path in foundry.toml to skip test/unit/projects/JMIExtension.t.sol and the entire test/integration/ directory. JMIExtension is EIP-170 oversize under ssolc+mercury (25 853 bytes) and is not a Seismic deployment target; its unit suite was written against the unshielded balanceOf surface and trips Unauthorized on the new gated read. Integration suites all fork ETH_MAINNET via BaseIntegrationTest and abort with HTTP 400 on eth_getFlaggedStorageAt; integration coverage for this profile lives on Seismic devnet. Carries through the prettier-only formatting diff that was staged on MYieldToOne.sol (line-wrap collapse on the precompile helpers and _spendAllowanceAndTransfer signature). Suite under FOUNDRY_PROFILE=seismic: 369 passed, 0 failed.
The docs/ directory is gitignored and intentionally kept local-only. Removes pointers that would 404 for any reader outside the local working tree. Substantive NatSpec content (operational TxSeismic 0x4A requirement, sbytes32 zero-sentinel open question, unregistered- recipient fallback semantics, foundry profile rationale) is preserved inline; only the see-also links are dropped. Also drops two stale @dev notes pointing at the precompile-addresses open question on _ecdh, _hkdf, _aesGcmEncrypt — that question was retired in favor of treating the Seismic tutorial as the source of truth for addresses and input layouts.
…gitmodules The gitlink already pins lib/common at a1fbf37 (m0-foundation/common's feat/erc20-virtual). Declaring the branch makes the tracked ref explicit so the intent is visible and `git submodule update --remote` follows the right branch. No build/bytecode change.
JMIExtension inherits the shielded MYieldToOne, whose suint256 closure inflates its runtime bytecode to 25,853 B under ssolc+mercury at the default profile's 19,999 optimizer runs -- 1,277 B over the EIP-170 24,576 B limit, so `sforge build` failed the size check. Setting optimizer_runs = 800 in [profile.seismic] (the knee of the size/gas curve) brings JMIExtension to 23,240 B (+1,336 B headroom) while keeping as much runtime-gas optimization as the limit allows. Only the seismic profile is affected; the default profile stays at 19,999 so the rest of the suite and audit-reproducible sibling extensions are unchanged. Also refreshes the [profile.seismic] comment that referenced the old 25,853 B size as a test-skip rationale.
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Scope
Changes are confined to
src/projects/yieldToOne/MYieldToOne.sol(plus its interface). The rest of the M0 stack (MExtension,SwapFacility, Portal, M Token, …) is unchanged — only this one extension is rebuilt with the Seismicssolctoolchain against themercuryEVM revision so it can hold shieldedsuint256/sbytes32state.What landed (in commit order)
cb754110.8.26 → ^0.8.26ssolc 0.8.31compile MYieldToOne.ba90d43balanceOfwithsuint256+ Seismic build profilebalanceOfbecomesmapping(address => suint256). Adds[profile.seismic]tofoundry.toml(mercury EVM,no_match_pathfor incompatible integration suites).b84bfb5sforge.c3490f3feat/erc20-virtual_updatehook.325a57dtransfer/approvepipelinesuint256overloads oftransfer/approve/transferFrom, theshieldedAllowanceslot, and_shieldedTransfer/_shieldedApproveinternals. Reverts the inheritedTransfer(uint256)and bothpermitoverloads. ShieldedInsufficientBalance/InsufficientAllowancerevert payloads zeroed so they don't leak the shielded value.7350fc5balanceOfgatebalanceOfbecomes readable by the holder OR theswapFacilityimmutable.172cb30_isInfra(account)predicate (account == swapFacility || allowlist[account]). Nativeuint256transferFromrequires_isInfra(msg.sender); nativeuint256approverequires_isInfra(spender);balanceOfinfra read-exemption extended to the allowlist. Admin-gatedsetAllowlisted(single + batch) +AllowlistSetevent.Function surface (current)
transfer(address, suint256)Transfer(address,address,uint256)with cleartext amount — being closed in the encrypted-events phase below.transferFrom(address, address, suint256)shieldedAllowance.approve(address, suint256)shieldedAllowance.transferFrom(address, address, uint256)UseShieldedTransferunless_isInfra(msg.sender). Used by Portal on outflow.approve(address, uint256)UseShieldedApproveunless_isInfra(spender). Used by Portal'sforceApprove(SwapFacility).transfer(address, uint256)permit(...)(both overloads)balanceOf(address account)msg.sender == accountOR_isInfra(msg.sender), else revertsUnauthorized. External callers use a Seismic signed read (TxSeismic 0x4A).allowance(address owner, address spender)owner/spender.totalSupply/yield/wrap/unwrapIn progress: encrypted Transfer events
Per the Seismic SRC-20 encrypted-events tutorial. Design:
Transfer(address,address,bytes)overload alongside the inheritedTransfer(address,address,uint256). Distincttopic0; coexists cleanly with standard ERC-20 indexers._shieldedTransferpath (thesuint256overloads). Mint, burn, infratransferFrom(uint256), and forced transfers stay on the plaintextTransfer(uint256)event — their amounts are already public via bridge calldata or operator privilege.sbytes32 contractPrivateKeyset once via an admin call sent asTxSeismic 0x4A; plainbytes contractPublicKeyexposed for off-chain decryption clients.registerPublicKey(bytes)once (33-byte compressed secp256k1). Unregistered recipients still receive transfers but get an empty-ciphertext event.keccak256(from, to, ++encryptedEventNonce)(monotonic counter; avoids the tutorial's same-block nonce-reuse risk on repeat transfers).Open questions for the Seismic team: UX of empty-ciphertext fallback, nonce strategy, and
sbytes32zero-sentinel semantics.Build & test
Integration tests are skipped under the Seismic profile — they fork mainnet, which doesn't implement
eth_getFlaggedStorageAt. See[profile.seismic].no_match_pathinfoundry.toml.