[dispatch] Finding a home for Multibase and Multihash
Manu Sporny <msporny@digitalbazaar.com> Thu, 11 August 2022 21:40 UTC
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From: Manu Sporny <msporny@digitalbazaar.com>
Date: Thu, 11 Aug 2022 17:39:35 -0400
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Subject: [dispatch] Finding a home for Multibase and Multihash
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Dearest Majestys of Dispatching Things at IETF, We would like to work towards publishing a few of the "Multiformats" specifications as IETF RFCs. The Multiformats Project[1] describes a collection of byte headers that are prepended to data values. These headers aim to future-proof data values in a representation-agnostic manner such that they can be used across a variety of data formats such as JSON, CBOR, and YAML. The approach is used in systems such as IPFS[2], W3C Decentralized Identifiers[3], the Data Integrity[4] pre-standard (at W3C), and W3C Verifiable Credentials[5]. Multiformats enable interoperability and agility at the data format layer. To more narrowly focus on two classes of Multiformats, we'd like to find a home for Multibase[6] and Multihash[7], to start. The Multibase[6] specification prepends an ASCII byte to a base-encoded value such that a processor can look at the first byte to determine the base encoding of the rest of the string. The Multihash[7] specification prepends a variable-length integer which expresses a particular type of cryptographic hash (e.g., SHA-2, 256-bit value), to a cryptographic hash value such that a processor can look at the header to determine what the value bytes represent. Multibase and Multihash can be combined to provide multibase-encoded multihash values. The Multibase data format is used by: * IPFS[2] to encode data values used by protocols on the network, * W3C Decentralized Identifier[3] Methods to base-encode binary identifiers and cryptographic public key values, * W3C Verifiable Credentials[5] to base-encode cryptographic signature values, * The `proofValue` Data Integrity[4] pre-standard (at W3C), * The `proofValue` in the 2020 Ed25519 Cryptosuite[10] pre-standard (at W3C), * The `proofValue` in the 2019 ECDSA Cryptosuite[11] pre-standard (at W3C). The Multihash data format is used by: * IPFS[2] to identify content on the network, * An addition to W3C Verifiable Credentials for referencing external content by hash. * The Cryptographic Hyperlinks I-D[12] to provide content integrity protection for URLs. There exist 14 implementations[13] for Multibase, and 18 implementations for Multihash[14]. Which places at IETF would be appropriate homes for these two specifications, noting that we will most likely want to standardize other Multiformats specifications at IETF in the future? -- manu (Digital Bazaar), bengo (Protocol Labs), and aaron (Project Bluesky) [1]: https://multiformats.io/ [2]: https://ipfs.io/ [3]: https://www.w3.org/TR/did-core/ [4]: https://w3c.github.io/vc-data-integrity/ [5]: https://www.w3.org/TR/vc-data-model/ [6]: https://datatracker.ietf.org/doc/html/draft-multiformats-multihash-04 [7]: https://datatracker.ietf.org/doc/html/draft-multiformats-multibase-05 [8]: https://w3c-ccg.github.io/data-integrity-spec/ [9]: https://w3c.github.io/vc-wg-charter/ [10]: https://w3c-ccg.github.io/di-eddsa-2020/ [11]: https://w3c-ccg.github.io/di-ecdsa-secpr1-2019/ [12]: https://datatracker.ietf.org/doc/html/draft-sporny-hashlink-07 [13]: https://github.com/multiformats/multibase#implementations [14]: https://multiformats.io/multihash/#implementations -- Manu Sporny - https://www.linkedin.com/in/manusporny/ Founder/CEO - Digital Bazaar, Inc. News: Digital Bazaar Announces New Case Studies (2021) https://www.digitalbazaar.com/
- [dispatch] Finding a home for Multibase and Multi… Manu Sporny
- Re: [dispatch] Finding a home for Multibase and M… Ben Schwartz
- Re: [dispatch] Finding a home for Multibase and M… Manu Sporny
- Re: [dispatch] Finding a home for Multibase and M… Tim Bray
- Re: [dispatch] Finding a home for Multibase and M… Benjamin Goering
- Re: [dispatch] Finding a home for Multibase and M… Robin Berjon
- Re: [dispatch] Finding a home for Multibase and M… Eric Rescorla
- Re: [dispatch] Finding a home for Multibase and M… Manu Sporny
- Re: [dispatch] Finding a home for Multibase and M… Carson Farmer
- Re: [dispatch] Finding a home for Multibase and M… Ambrose Chua
- Re: [dispatch] Finding a home for Multibase and M… Volker Mische
- Re: [dispatch] Finding a home for Multibase and M… Eric Rescorla
- [dispatch] Demonstration of Implementer Support f… Manu Sporny
- [dispatch] Demonstration of W3C Implementer Suppo… Manu Sporny
- Re: [dispatch] Demonstration of W3C Implementer S… John C Klensin
- Re: [dispatch] Demonstration of W3C Implementer S… Manu Sporny
- Re: [dispatch] Demonstration of Implementer Suppo… Martin J. Dürst
- Re: [dispatch] Demonstration of Implementer Suppo… Manu Sporny
- Re: [dispatch] Demonstration of Implementer Suppo… worley
- Re: [dispatch] Demonstration of Implementer Suppo… Ross Finlayson