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Today I learned that there is no BIP or SLIP docs specifying how the m/48' HD derivation works for bitcoin multisig. This was apparently agreed upon by @ElectrumWallet , @Ledger , @Trezor & Copay and now used by @COLDCARDwallet & others. But many important details missing!
I've already had a couple of people already report that they were unable in the past find any docs and that they've had to reverse engineer the details themselves. This is not best practices of open development!
If there are devs / technical writers who would like to help document m/48’ multisig usage properly, contact me via DM - I’ve got a temporary HackMD collaborative document started, which I’ll move to @BlockchainComns repo when we have acceptable draft, for ultimate submit as BIP.
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Christopher Allen
@ChristopherA
New collaborative white paper from #RebootingWebOfTrust on the topic “Five Mental Models of Identity”. Team led by @JoeAndrieu w/ Nathan George, @IDIMAndrew, @cmacintosh & Antoine Rondelet github.com/WebOfTrustInfo…
…”consider multiple mental models for better communication and better identity systems. Whatever your own goals, we believe you are more likely to achieve them if you can communicate clearly in terms others understand and can incorporate the needs of others into your own work.”
…”The question we are seeking to answer in this paper is the following: ‘When we are evaluating the evidence, what are we trying to determine?’. Each mental model approaches this differently.”
Read 11 tweets
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Christopher Allen
@ChristopherA
As we head in 2020 toward standards for encrypted data vaults (see overview github.com/WebOfTrustInfo…) I can't help but think of efforts in 1991 to add cryptography to the Xanadu Club system. I found some old Xanadu docs on this & scanned them for posterity: dropbox.com/s/qeyywxr9vk45…
In modern day cryptographic terms, each Xanadu document is like an encrypted git commit (a point in time of a collaborative document). The Read Club has the decryption key to read the data. The Write Club can collaborate to sign future revisions of document.
As I think about how the Club System might be implemented today, the Read Club would be architected something like Minilock, 45678.github.io/miniLock-file-… with its list of public key "permits" that can be unlocked using a Diffie-Hellman secret between keys to reveal the decryption key.
Read 12 tweets
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Christopher Allen
@ChristopherA
Our new FREE book “#SmartCustody: The Use of Advanced Cryptographic Tools to Improve the Care, Maintenance, Control, and Protection of Digital Assets” published by @BlockchainComns written by myself & @Appelcline is available TODAY! bit.ly/SmartCustodyBo…
Your digital assets are more vulnerable you might think. They could be stolen by hackers, extorted by the mob, expropriated by the government, or lost by you!
The #SmartCustody book details what you need to ensure that you don't lose your Bitcoins, your Ether, or your self-sovereign identity. It teaches you how to protect your digital data and cryptocurrencies with procedural solutions.
Read 17 tweets

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