388 - Wallet Policies for Descriptor Wallets
BIP: 388 source Layer: Applications Title: Wallet Policies for Descriptor Wallets Author: Salvatore Ingala Comments-Summary: No comments yet. Comments-URI: https://github.com/bitcoin/bips/wiki/Comments:BIP-0388 Status: Proposed Type: Standards Track Created: 2022-11-16 License: BSD-2-Clause Post-History: 2022-05-10: https://lists.linuxfoundation.org/pipermail/bitcoin-dev/2022-May/020423.html Table of ContentsAbstractCopyrightMotivationSecurity, privacy and UX concerns for hardware signing devicesSecurity issuesAvoiding key reuseUX issuesPolicy registration as a solutionAvoiding blowup in descriptor sizeSpecificationFormal definitionWallet descriptor templateKey information vectorAdditional rulesDescriptor derivationImplementation guidelinesOptional derivation pathsExamplesTest VectorsValid policiesInvalid policiesBackwards CompatibilityReference ImplementationFootnotesAcknowledgments Abstract Software wallets and hardware signing devices typically partition funds ...
328 - Derivation Scheme for MuSig2 Aggregate Keys
BIP: 328 source Layer: Applications Title: Derivation Scheme for MuSig2 Aggregate Keys Author: Ava Chow Comments-Summary: No comments yet. Comments-URI: https://github.com/bitcoin/bips/wiki/Comments:BIP-0328 Status: Draft Type: Informational Created: 2024-01-15 License: CC0-1.0 Table of ContentsAbstractCopyrightMotivationSpecificationTest VectorsBackwards CompatibilityRationaleReference ImplementationAcknowledgements Abstract This document specifies how BIP 32 extended public keys can be constructed from a BIP 327 MuSig2 aggregate public key and how such keys should be used for key derivation. Copyright This BIP is licensed under the Creative Commons CC0 1.0 Universal license. Motivation Multiple signers can create a single aggregate public key with MuSig2 that is indistinguishable from a random public key. The cosigners need a method for generating additional aggregate pubkeys to follow the best practice of using a new address for every payment. The obvious method...
390 - musig() Descriptor Key Expression
BIP: 390 source Layer: Applications Title: musig() Descriptor Key Expression Author: Ava Chow Comments-Summary: No comments yet. Comments-URI: https://github.com/bitcoin/bips/wiki/Comments:BIP-0390 Status: Draft Type: Informational Created: 2024-01-15 License: CC0-1.0 Table of ContentsAbstractCopyrightMotivationSpecificationmusig(KEY, KEY, ..., KEY)musig(KEY, KEY, ..., KEY)/NUM/.../*Test VectorsBackwards CompatibilityRationaleReference ImplementationAcknowledgements Abstract This document specifies a musig() key expression for output script descriptors. musig() expressions take multiple keys and produce an aggregate public key using BIP 327. Copyright This BIP is licensed under the Creative Commons CC0 1.0 Universal license. Motivation BIP 327 introduces the MuSig2 Multi-Signature scheme. It is useful to have a way for keys to be used in a MuSig2 aggregate key to be expressed in descriptors so that wallets can more easily use MuSig2. Specification A new key expre...
373 - MuSig2 PSBT Fields
BIP: 373 source Layer: Applications Title: MuSig2 PSBT Fields Author: Ava Chow Comments-Summary: No comments yet. Comments-URI: https://github.com/bitcoin/bips/wiki/Comments:BIP-0373 Status: Draft Type: Standards Track Created: 2024-01-15 License: CC0-1.0 Table of ContentsIntroductionAbstractCopyrightMotivationSpecificationRolesUpdaterSignerFinalizerBackwards CompatibilityTest VectorsRationaleReference implementationAcknowledgements Introduction Abstract This document proposes additional fields for BIP 174 PSBTv0 and BIP 370 PSBTv2 that allow for BIP 327 MuSig2 Multi-Signature data to be included in a PSBT of any version. These will be fields for the participants' keys, the public nonces, and the partial signatures produced with MuSig2. Copyright This BIP is licensed under the Creative Commons CC0 1.0 Universal license. Motivation BIP 327 specifies a way to create BIP 340 compatible public keys and signatures using the MuSig2 Multi-Signature scheme. The existing...