Gordian Developer meeting — April 2023

<img src="https://www.Blockchaincommons.com/images/bcc-card.jpg" width=1024> Blockchain Commons #Gordian Meeting 2023-04-05 --- ### <img src="https://i.imgur.com/QyDl5nK.png" width="128" height="128"> What is Blockchain Commons? * We are a community interested in self-sovereign control of digital assets and identity. * We bring together stakeholders to collaboratively develop interoperable infrastructure. * We design decentralized solutions where everyone wins. * We are a neutral "not-for-profit" that enables people to control their own digital destiny. --- ### Who am I? <img src="https://avatars.githubusercontent.com/ChristopherA?s=195"> Christopher Allen (@ChristopherA) _Principal Architect & Executive Director_ --- ### <img src="https://i.imgur.com/QyDl5nK.png" width=128 height="128"> What is the Gordian Community? - Developers jointly expand & use the Gordian specs. - Open, interoperable, secure, compassionate infrastructure. - Goals for 2023: - dCBOR & Gordian Envelope libraries - Reference examples of QR/UR crypto-request - Signing (beyond PSBT) - Account Policy (transaction coordinator) - Collaborative Seed Recovery (CSR) - Collaborative Key Management (CKM) --- ### <img src="https://i.imgur.com/QyDl5nK.png" width=128 height="128"> Last Meeting dCBOR & UR Interoperability: 2023-03-01 * We introduced our dCBOR work. * We talked about the 10 wallets now supporting URs! * We introduced our Community Channels * https://www.blockchaincommons.com/subscribe.html --- ### <img src="https://i.imgur.com/QyDl5nK.png" width=128 height="128"> Today's Topics - Promoting Success of QR PSBT Interop - Blockchain Commons Goes to Dispatch - CBOR/UR Updates - Evolving Internet-Drafts - Legislative Work - QuickConnect: The Next Generation - SSKR for JavaCard --- ### <img src="https://i.imgur.com/QyDl5nK.png" width=128 height="128"> Promoting QR PSBT Interop * This is our biggest success to date. * We are working on video to celebrate. * Please send us clip of sending and receiving a PSBT from your wallet. * Please update your wallet details and entry on Gordan Community page: * https://github.com/BlockchainCommons/Gordian-Developer-Community/blob/master/README.md#urs * https://github.com/BlockchainCommons/Gordian-Developer-Community/blob/master/README.md#members * If you offer a UR library, please update: * https://github.com/blockchaincommons/crypto-commons#bc-ur * Don't forget to subscribe to one our Community Channels: * https://www.blockchaincommons.com/subscribe.html --- ### <img src="https://i.imgur.com/QyDl5nK.png" width=128 height="128"> IETF Dispatch * Blockchain Commmons presented on March 27, 2023 * Feedback? We Need to Better Demonstrate: * Simplicity of Gordian Envelope Core: Deterministic Hash * More "Why" than "What" or "How" * Addressing RFC 6973 (Privacy) & RFC 8280 (Human Rights) * Transforming GUIDELINES into Requirements * New Connections to CBOR Groups * BOF Tentatively Planned for July IETF in SF --- ### <img src="https://i.imgur.com/QyDl5nK.png" width=128 height="128"> CBOR/UR Updates * Planned renumbering of CBOR tags in prep. for IANA application. * Tags already be in use by developer community are now marked “Fixed”, not renumbered. * Tags 200-206 are now the “core” envelope tags: these are the ones we are going to apply to IANA for. * Tags 207-212 are for distributed function calls. * Tags 300-323 are related to Bitcoin or SecureComponents. * Tags 400-410 are used as output descriptor types. * Tag 500 is used as response type for OutputDescriptorResponse. * Changed two UR type names: * crypto-digest is now just digest. * crypto-msg is now just encrypted. --- ### <img src="https://i.imgur.com/QyDl5nK.png" width=128 height="128"> Evolving Internet-Drafts (I-Ds) * Envelope I-D Updates * Designed and added eighth case to envelope specs: compressed. * Behaves very much like encrypted and elided cases. * Together, all three are now consistently referred to in code and specs as the “obscured” cases. * https://blockchaincommons.github.io/WIPs-IETF-draft-envelope/draft-mcnally-envelope.html * dCBOR I-D Updates * Removed requirement that map entries be non-null. * https://blockchaincommons.github.io/WIPs-IETF-draft-deterministic-cbor/draft-mcnally-deterministic-cbor.html --- ### <img src="https://www.blockchaincommons.com/images/wyoming.png" width=250> Legislative Work * Private Keys Will Be Protected in Wyoming! * Digital Assets Can Be Registered in Wyoming! * See Our New Advocacy Web Page: https://advocacy.blockchaincommons.com/ --- ### <img src="https://i.imgur.com/QyDl5nK.png" width=128> QuickConnect: The Next Generation * QuickConnect: One of our First Projects * https://github.com/BlockchainCommons/Gordian/blob/master/QuickConnect/ * btcstandup://rpcuser:rpcpassword@kshcahsaihslalsichs78yb2ud8d.onion:8332/? * Next generation: nostrnode * https://github.com/Fonta1n3/nostrnode-macOS --- ### <img src="https://www.blockchaincommons.com/images/sponsors/proxy-black.png" width=400> Proxy Updates * Demo: SSKR in JavaCard * https://github.com/proxyco/jc-sskr * Discussion: NFC for Secure Transfer --- ### <img src="https://www.blockchaincommons.com/images/wyoming.png" width=250> Next Monthly Call * Will be held in conjuction with Silicon Salon IV * First Wednesday, May 3, 2023 9am-Noon PDT (**not 4pm!**) * We will send you code for free registration * **Topics** * Anti-Exfil: Preventing Key Exfiltration Through Signature Nonce Data. (Andrew Poelstra) * Scalar and Vector Draft Biginteger instructions for the Power ISA (Luke Leighton & David Calderwood) * Open Hardware Discussion. An open discussion on applying open-source principles to hardware. --- <img src="https://i.imgur.com/QyDl5nK.png" width="192" height="192">As always, we hope that you will financially support us on GitHub: https://github.com/sponsors/BlockchainCommons <img src="https://avatars.githubusercontent.com/ChristopherA?s=128 "> Christopher Allen (@ChristopherA)www.BlockchainCommons.com