Re: [Cfrg] I-D Action: draft-irtf-cfrg-vrf-06.txt
Manu Sporny <msporny@digitalbazaar.com> Tue, 11 February 2020 21:50 UTC
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From: Manu Sporny <msporny@digitalbazaar.com>
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Subject: Re: [Cfrg] I-D Action: draft-irtf-cfrg-vrf-06.txt
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On 2/11/20 12:31 PM, Leonid Reyzin wrote: > This most recent update to the VRF draft consists of minor clarifications. Hi Leo, Sharon, Jan, and Dimitris, I've been following this work for years now and I still don't know why VRFs are useful. Every time you publish a new draft, I got out and scour the Web for an easily readable description of a use case that is solved by the use of a VRF and end up reading things like: "It is a pseudo-random function that provides publicly verifiable proofs of its outputs' correctness." "VRFs are useful for preventing enumeration of hash-based data structures." "VRFs ... useful for providing a 1:1 mapping of low entropy inputs (e.g. names, email addresses, phone numbers) to some random values which can be committed to in advance, e.g. through a timestamping service such as a transparency log." I say this as someone that spends quite a bit of time reading IETF cryptography specs and writing specifications that directly utilize IETF/CFRG cryptography specs (at IETF and W3C). Can you please add a few real world use cases where one would use a VRF? Are they useful for committing values on a public blockchain in a privacy preserving manner? If so, what sorts of values? Are they useful when voting? Are they useful for distributed gaming scenarios? Some concrete uses would be more helpful than the overly general text in the current spec. -- manu -- Manu Sporny (skype: msporny, twitter: manusporny) Founder/CEO - Digital Bazaar, Inc. blog: Veres One Decentralized Identifier Blockchain Launches https://tinyurl.com/veres-one-launches
- Re: [Cfrg] I-D Action: draft-irtf-cfrg-vrf-06.txt Leonid Reyzin
- [Cfrg] I-D Action: draft-irtf-cfrg-vrf-06.txt internet-drafts
- Re: [Cfrg] I-D Action: draft-irtf-cfrg-vrf-06.txt Manu Sporny
- Re: [Cfrg] I-D Action: draft-irtf-cfrg-vrf-06.txt Jeff Burdges
- Re: [Cfrg] I-D Action: draft-irtf-cfrg-vrf-06.txt Jeff Burdges