feat: add p2pk_signing_keys to SendOptions#1750
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vnprc wants to merge 2 commits intocashubtc:mainfrom
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Add `p2pk_signing_keys: Vec<SecretKey>` to `SendOptions` so wallets holding P2PK-locked proofs can spend them through the standard `prepare_send` / `confirm` flow without manually calling `swap()`. - Extract `sign_proofs()` into `wallet/util.rs` with four unit tests - Refactor `receive/saga/mod.rs` to call `sign_proofs()` (no behaviour change) - Sign `proofs_to_swap` in `send/saga/mod.rs::confirm()` before swap - Add `p2pk_signing_keys` to cdk-ffi `SendOptions` struct and both `From` conversions (was previously hardcoded to `Vec::new()`) - Fix CHANGELOG `## Added` heading level to `### Added` - Add integration test `test_p2pk_send_options_signing_keys` covering the full prepare_send / confirm flow with P2PK-locked input proofs
… conditions When a wallet holds P2PK-locked proofs whose total exactly equals the requested send amount, prepare_send short-circuits: all proofs go to proofs_to_send and proofs_to_swap is empty. Since confirm only signs proofs_to_swap, signing is skipped and the locked proofs flow out in the token unchanged, causing the recipient to get NUT11 errors. Fix by shadowing force_swap to true in internal_prepare when p2pk_signing_keys is non-empty, ensuring all proofs go through a real swap that signs and unlocks them before building the token. Add a regression test covering the exact-denomination case.
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I think this is partly getting fixed here: #1466 This would not be a complete fix but I think it's more or less where you want to take it. |
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oh cool! |
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Summary
Wallets that hold P2PK-locked proofs (received from another party, or minted with spending conditions) currently have no way to spend them through the standard prepare_send / confirm flow — they must manually call swap() and handle signing themselves. This PR closes that gap.
Changes:
p2pk_signing_keys: Vec<SecretKey>toSendOptions(defaults to empty, fully backward-compatible)receive/saga/mod.rsinto a newsign_proofs()utility inwallet/util.rs, and call it from both the receive and send sagassign_proofs(&mut proofs_to_swap, &opts.p2pk_signing_keys)inPreparedSend::confirm()before the swap, so the mint accepts the spendSendOptionsstruct and bothFromconversions (matching the existingReceiveOptionspattern)Usage
Test plan
wallet/util.rs: correct key signs, wrong key is a no-op, plain proof is a no-op, empty key vec is a no-optest_p2pk_send_options_signing_keys: funds a wallet, swaps clean proofs for P2PK-locked proofs via the raw mint API, then exercises the full prepare_send / confirm flow with signing keys — verifies the recipient receives the correct amount