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Private multisig signing in every wallet app (fullnode v0.8.0, chain 21) - #3
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…how, sign, share through randprotocol-msig; signer profiles in each app's key store) Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_01L6dmK1EC4QerMmqWR1h7d8
…e wasm32 gate on dilithium-core Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_01L6dmK1EC4QerMmqWR1h7d8
…nt with the delivery-key caveat; two more fixtures Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_01L6dmK1EC4QerMmqWR1h7d8
…tputs labelled by to_account Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_01L6dmK1EC4QerMmqWR1h7d8
…de, re-authenticate every signature Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_01L6dmK1EC4QerMmqWR1h7d8
…ning refuses an unchecked payee Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_01L6dmK1EC4QerMmqWR1h7d8
…s, engine, screens, locales, iOS, Android, devnet e2e); payees entered per spec 639cae7, pending crate names tagged [confirm: 0e] Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_01L6dmK1EC4QerMmqWR1h7d8
…9 (MODQ chip, msauth guest, hc_auth_multisig), chain 21 onward - core/vendor/fullnode 37c4fdd → e34117b; CHAIN_BUILD "e34117b" (wallet-core, the web core integration test, the iOS smoke test, README). This makes the branch chain-21-only; chain 20 fixes go to release/chain20. - The [patch]ed Plonky3 forks (p3-fri, p3-merkle-tree, p3-batch-stark) are unchanged at e34117b; core/ and desktop/ keep patching them as before. The vendored zkvm gates dilithium-core and dilithium_host off wasm32 (its own Cargo.toml/lib.rs), so the browser build is unaffected. - wallet-core's DeployExec test executor forwards the six new ConfidentialExecutor methods (auth_header, warm_auth_multisig, auth_multisig_key_ready, install_msauth_vk, enable_auth_multisig, build_msauth_key) to the stub, as it does the rest of the auth path. - No fixture changes: the hc_bundle/hc_auth pins are unchanged, and the in-process proved transfer verifies. cargo test --release: 132 + 8 + 4 passed (2 ignored, the real delegated-proof tests). Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_01L6dmK1EC4QerMmqWR1h7d8
…h code yet) The private multisig signer checks (summary, signing message, share) come from fullnode's crates/randprotocol-msig, vendored with its tests/fixtures/*.json at e34117b. Its dependency cone is the one core already builds for wasm32 (randprotocol-core, randprotocol-zkvm, serde, hex, thiserror): the wasm build (core/scripts/build-wasm.sh) compiles it. The arms that call it are a later task (spec 2026-10-11-msauth-signing-design §6 step 2). Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_01L6dmK1EC4QerMmqWR1h7d8
core/scripts/vendor-fullnode.sh <rev> [<fullnode clone or URL>] checks core/vendor/fullnode out at <rev> (fetching from a local clone, read only, when the commit is not pushed; populating an empty submodule), checks that the zkvm still gates dilithium-core/dilithium_host off wasm32, that the Plonky3 forks core/Cargo.toml patches exist and that randprotocol-msig carries its fixtures (printing their SHA-256s), rewrites CHAIN_BUILD and the three tests that pin it, and refreshes core/ and desktop/src-tauri lockfiles. It prints what is left: the prose, the test runs, the commit. Round-tripped e34117b → 2fb491a → e34117b with a byte-identical tree. core/README.md points at it. Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_01L6dmK1EC4QerMmqWR1h7d8
…n core-errors Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_01L6dmK1EC4QerMmqWR1h7d8
…seeds under the password only; passwordAttempt shared with the unlock Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_01L6dmK1EC4QerMmqWR1h7d8
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_01L6dmK1EC4QerMmqWR1h7d8
… overwritten; test the wipe and the wrong-password remove Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_01L6dmK1EC4QerMmqWR1h7d8
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_01L6dmK1EC4QerMmqWR1h7d8
…gainst a verified head, no node no signature, the password per signature Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_01L6dmK1EC4QerMmqWR1h7d8
…tched paying output whatever recipients_checked says, re-check the head after the password backoff Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_01L6dmK1EC4QerMmqWR1h7d8
…count, amount}, and a null summary, as malformed Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_01L6dmK1EC4QerMmqWR1h7d8
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_01L6dmK1EC4QerMmqWR1h7d8
…nto Downloads (desktop save_text_to_downloads over save_text_in) Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_01L6dmK1EC4QerMmqWR1h7d8
…iew/sign a proposal (last four + password), save or share the share, check others' shares; desktop saves to Downloads Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_01L6dmK1EC4QerMmqWR1h7d8
…der the crate's set matching Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_01L6dmK1EC4QerMmqWR1h7d8
…d-payments list (addr:amount), engine refuses empty/amountless entries, desktop save never fails on a taken name Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_01L6dmK1EC4QerMmqWR1h7d8
…D doc per the plan; the msig link test; DeployExec forwards to the wrapped executor; the delegated finish test names a genesis - wallet-core: DEFAULT_CHAIN_ID 21 (its doc: chain 21, fullnode v0.8.0, constraint set 9, cut from chain 20's state); CHAIN_BUILD's doc names e34117be's constraint set 9 with hc_bundle 60af094a… and hc_auth 1e4e347f… unchanged and a node that refuses chains 18–20; the three default_chain_id asserts move to 21; the_vendored_msig_crate_is_linked (POLICY_VERSION 1, SIG_BYTES 2420, PK_BYTES 1312). - DeployExec forwards the six msauth executor methods to the wrapped ZkExecutor (install_msauth_vk through the trait: ZkExecutor's inherent method of that name returns a typed error). - finish_proof_matches_prove_transfer_field_for_field (ignored, a real proof): moving the pending to the next chain id lands on a genesis-bound chain (BIND-1), so the moved pending carries a genesis and the verify still refuses the proof; the same move without one is asserted refused "BIND-1" before any verify. It had failed on that refusal since BIND-1. - Android Prefs.DEFAULT_CHAIN_ID 21, iOS Settings fallback 21, CoreSmokeTests (21, e34117b), LiveSendTests/LiveSwapTests chainId 21, the UI engine's FALLBACK.chainId 21, the web core integration test (21) and both real-node e2e CHAIN_IDs (21). core cargo test --release: 133 + 8 + 4 passed, 2 ignored; -- --ignored: 2 passed. UI: 994 passed. Web core integration: 15 passed. Desktop cargo test: 22 passed. Prover e2e on a chain-21 genesis (chain id 21, fees, multisig, hc_auth_multisig): 4 passed. Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_01L6dmK1EC4QerMmqWR1h7d8
…nt set 9, randprotocol-msig linked), chain 21 by default Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_01L6dmK1EC4QerMmqWR1h7d8
…rged) — randprotocol-msig's payee check (check_proposal_expecting / sign_expecting, rand1…[:AMOUNT] expected recipients, each output's matches, recipients_checked) and the proposal-substituted-recipient vector; CHAIN_BUILD 9b01492 Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_01L6dmK1EC4QerMmqWR1h7d8
…protocol-msig (check_proposal_expecting: rand1…[:AMOUNT] expected recipients, each output's matches, recipients_checked, expected [{entry, fingerprint}]); the eleven 9b01492 vectors under ui/test/fixtures/msauth with one hash list, which vendor-fullnode.sh now rewrites
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01L6dmK1EC4QerMmqWR1h7d8
…h sign_expecting: the core refuses a share whose payee does not check out, and a paying proposal with no payee named); the wasm signs the 9b01492 vectors exactly; the JS sign passes the check's expected_recipients to msauth_sign Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_01L6dmK1EC4QerMmqWR1h7d8
…n disarmed after a payment edit Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_01L6dmK1EC4QerMmqWR1h7d8
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_01L6dmK1EC4QerMmqWR1h7d8
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_01L6dmK1EC4QerMmqWR1h7d8
…ape (passed on 9b014927: 97 s) Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_01L6dmK1EC4QerMmqWR1h7d8
…rPresence, read per signature) - RandCore: msauthCheck / msauthSign (with expected_recipients) / msauthVerifyShare / msauthSignerImport / msauthPolicyInfo. - MsauthRules.verdict: the same decisions as ui/engine/signers.js, including the review rulings: .malformedSummary, per-output matches, empty or blank payment lists refused, amounts pinned except per-row non-RAND owners (summary.expected), no node / wrong chain / wrong genesis / head + 16 >= expires_at. - MsauthSigning: check, judge, prompted seed read, head re-read and re-judge, sign with the same list; the seed buffer zeroed on every exit. - SignerStore: seed item WhenPasscodeSetThisDeviceOnly + .userPresence, fresh LAContext per read; forgetWallet removes every profile. - CoreErrors: the msauth sentences (Task 5's list). Tests: MsauthTests 25 pass; full suite 145 run, 2 skipped (live), 0 failures, on the iPhone 17 Pro simulator (A0ED72E7, iOS Simulator). The Keychain ACL is tested through FakeSignerSecrets; the device check is manual. Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_01L6dmK1EC4QerMmqWR1h7d8
…d in an owned buffer, code-point label limit, a head past 2^53-1 is no node - SignerSecrets.deleteAll(accountPrefix:): the Keychain lists the service's items by attributes (no prompt) and deletes each msauth.* account; removeAll calls it after the listed profiles, so an orphan (undecodable index, crash before the index write) goes with the wallet. - KeychainSignerSecrets.load copies the reply's bytes once into an owned Data, so resetBytes zeroes them in place instead of copy-on-writing away from the framework's CFData; comments say only the framework's copy is out of reach. - Label limit counts code points (unicodeScalars), as the JS does. - MsauthSigning.judge: a node head above 2^53-1 is no node, as the JS does. MsauthTests 28/28 on the iPhone 17 Pro simulator (A0ED72E7, iOS 26.2). Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_01L6dmK1EC4QerMmqWR1h7d8
…en the sweep fails - SignerSecrets.deleteAll(accountPrefix:keeping:) throws: a listing other than success or errSecItemNotFound, or a delete other than success or not-found, is an error. - SignerStore.removeAll() throws: listed profiles, then the sweep (keeping the index), then the index; a failed sweep keeps the index and `profiles` for a retry. - WalletService.forgetWallet throws and removes the signer profiles first, before anything else is forgotten; SettingsView shows the error and stays. MsauthTests 29/29 and ContactsTests 8/8 on the iPhone 17 Pro simulator (A0ED72E7, iOS 26.2). Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_01L6dmK1EC4QerMmqWR1h7d8
…s, review the core's lines, last four + device auth, ShareLink; 20 languages Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_01L6dmK1EC4QerMmqWR1h7d8
…vive a refused check, latest-check-wins, confirmed removal Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_01L6dmK1EC4QerMmqWR1h7d8
…ncellation stops before Face ID, the check counter survives leaving, editor locked while signing Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_01L6dmK1EC4QerMmqWR1h7d8
…Vault, a per-use Keystore key per seed SignFlow makes the web's and iOS's decisions (iOS where stricter): a malformed summary refuses, every paying output needs a match, amount pins with the per-row non-RAND exception, no node / head past 2^53-1 is no node, chain, genesis, the CLI's 16-block margin. sign() judges before the prompt, re-reads the head and re-judges after it, honours cancellation before the prompt and before signing, passes msauth_sign the very list the check was given, and zeroes the seed in finally. Signer profiles live in KeyVault's encrypted file under msauth.*; each seed is sealed by its own AES-GCM Keystore key that needs authentication per use (biometric or credential on API 30+, a strong biometric on 26-29). Removing the wallet sweeps every msauth.* Keystore key and entry first, listed or not, keeps the index and the wallet if the sweep fails, and never touches the spend key or the prover's record. Task 5's core sentences in CoreErrors. 148 JVM tests pass. Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_01L6dmK1EC4QerMmqWR1h7d8
…ictly (a missing or malformed height is no node, not height 0) SignFlow.node(RpcClient) no longer goes through RpcClient.headHeight() (optLong default 0) or chainId() (truncates): SignFlow.headHeightOf and chainIdOf read the replies with the rule's strict uint and throw, which the flow judges as NO_NODE. Lint: @ChecksSdkIntAtLeast on credentialPerUse, the SDK check inlined in createKey, literal BOMs replaced by escapes. A seed sealed under another key fails its tag. 150 JVM tests pass. Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_01L6dmK1EC4QerMmqWR1h7d8
…per-use auth), check, review, last four + BiometricPrompt, ACTION_SEND; 20 languages The sign screen goes only through SignFlow.sign on its own thread (a CryptoPrompt authenticator: BiometricPrompt with a CryptoObject, posted to the main thread). Intended payments are address + amount rows; editing a row after a check disarms Sign until a check of exactly those rows lands; Sign signs the text and payees the shown review was checked with; only the latest check lands. The decisions live in SignRows, PaymentsGate, CheckSession, SignReview and PickedFile, JVM-tested (SignScreenTest, 26). All 93 msauth strings translated into the 19 locales. Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_01L6dmK1EC4QerMmqWR1h7d8
…a secure device (RemoveAuth: weak biometric or credential, else confirm-credential; skipped only without a secure lock), prompt "up" only once it takes focus, rows kept while typing, rows locked while signing Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_01L6dmK1EC4QerMmqWR1h7d8
…OS sign through the core, CLI proves and submits, the payout lands scripts/e2e-msauth.sh runs a one-validator chain-21-shape devnet (Test FRI profile, split authorisation + the multisig auth guest), makes a 2-of-3 policy with `rand multisig-private`, funds it, prepares a 10 RAND payment, has signer 0 sign in the web engine (signers.add/check/sign over the real wasm core) and signer 2 in iOS (MsauthSigning + RandCore on the simulator over FakeSignerSecrets: a simulator has no passcode), then proves, submits and checks the payee's scan. Both platform tests refuse the proposal with no payee and with the payee's address but no amount. Run 2026-10-12 against fullnode 9b014927: both signers passed; the tier-18 msauth prove (Test profile) was killed by macOS at 273.5 s, max RSS 22.5 GB, peak physical footprint 76.4 GB on a 48 GB Mac. The prove's watchdog now gauges the physical footprint (`footprint`), not RSS, and stops the prove past MSAUTH_E2E_MAX_MEM_GB (default 40). The full run needs a >= 96 GB host. Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_01L6dmK1EC4QerMmqWR1h7d8
…erified fold), the pin is on GitHub Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_01L6dmK1EC4QerMmqWR1h7d8
… through decryptSecret and decryptBytes Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_01L6dmK1EC4QerMmqWR1h7d8
…token bypass), lines must be an array of strings, a proposal edit clears the review and disarms Sign The amountless exception now needs the entry's fingerprint to own a paying non-RAND output and no paying RAND output; the screen withholds the exception from such a row and says RAND and token payments to one payee need separate proposals (20 languages). Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_01L6dmK1EC4QerMmqWR1h7d8
…ity with Android and iOS); a review whose lines are not all strings shows the refusal alone Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_01L6dmK1EC4QerMmqWR1h7d8
…dust-token bypass), lines must be an array of strings, the confirmation ignores inner whitespace, a saved chain id 20 becomes 21 once SignFlow.judge allows an amountless entry only when its fingerprint owns a paying non-RAND output and no paying RAND output; SignRows withholds the exception from such a row and the row shows msauth_mixed_note (20 languages). Prefs migrates chain_id 20 -> 21 once behind a marker; nothing else (the RPC URL included) is touched. Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_01L6dmK1EC4QerMmqWR1h7d8
…-token bypass), lines must be an array of strings, the confirmation ignores inner whitespace, a saved chain id 20 becomes 21 once MsauthRules.verdict allows an amountless entry only when its fingerprint owns a paying non-RAND output and no paying RAND output; SignRows withholds the exception from such a row and shows the both-RAND-and-token sentence (20 languages, l10n + ios-merge). Settings migrates chainId 20 -> 21 once behind a marker; nothing else (the RPC URL included) is touched. Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_01L6dmK1EC4QerMmqWR1h7d8
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_01L6dmK1EC4QerMmqWR1h7d8
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_01L6dmK1EC4QerMmqWR1h7d8
… proves for constraint set 9 (chain 21 onward), which a v0.7.1 node cannot verify Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_01L6dmK1EC4QerMmqWR1h7d8
Codecov Report❌ Patch coverage is
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… chain this core is built for The suite's CHAIN_ID stayed 20 after the core moved to DEFAULT_CHAIN_ID 21, so `version` answered 21 where the test expected 20, and the spend case refused the chain-20 devnet node as another chain. The genesis the suite cuts is now chain 21, like the core; the integration test's title names chain 21 too. Co-Authored-By: Claude Fable 5.1 <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_01KA8jgT2gancsDkMscTUBp2
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Summary
Every wallet app can now sign as a member of a private multisig account. That covers web, extension, desktop, iOS and Android, all through fullnode v0.8.0's
randprotocol-msigcrate.A signer adds a signer profile: the policy plus their key, both kept in the app's existing secure store. For each proposal they then:
i:hexsignature share.Preparing, proving and submitting stay in the CLI.
The core is pinned to fullnode v0.8.0 (c0878c3), which makes this branch chain-21-only:
DEFAULT_CHAIN_IDis 21.release/chain20.Refusals, the same on every platform and in the core
msauth_signusessign_expectingand refuses an empty payee list, so the core alone never signs for an unchecked payee.lines, refuses the proposal.expires_at, and expiry is checked again after authentication.Tests
ui/test/fixtures/msauth.sha256.scripts/e2e-msauth.sh.Before release
rpc.randprotocol.org) serves chain 20 until the cutover, and chain-21 apps refuse it..userPresenceprompt; BiometricPrompt with the Keystore on API 26–29 and 30+; removing a signer on Android 9 and 10.Unlock.isUnlocked) may skip device auth. It's pre-existing and outside this PR.The spec is
docs/superpowers/specs/2026-10-11-msauth-signing-design.mdand the plan isdocs/superpowers/plans/2026-10-12-msauth-signing.md.🤖 Generated with Claude Code
https://claude.ai/code/session_01L6dmK1EC4QerMmqWR1h7d8