Tezos: CAIPs, Sign-in with Tezos, Off-chain message signing TZIPs

[jdsika]

Hello team,

in our efforts to introduce a CAIPs standard compliant Sign-in With Tezos message format and signing process we have created TZIP-31/32 to introduce a standardized way of signing messages which are not meant to be used as on-chain transactions. A merge request for TZIP-33 for SIWT is here.

We have created the library "Sign In With Tezos (SIWT)" alongside the specification above as a reference implementation. This library uses beacon and taquito and should provide maximum convenience for developers to:

* proving the users ownership of the private key to the address the user signs in with,
* adding permissions to use your API or backend using on chain data.

We would like to get your input on the current TZIP-31/32 proposal and encourage an implementation into your product to make this a real standard. The overall proposal was created in a close cooperation with the Kukai team. It would provide a standardized way of creating a signing message (and more applications) which are currently documented e.g. in taquito as followed:
https://tezostaquito.io/docs/signing/#generating-a-signature-with-beacon-sdk

Please feel free to contact me on Slack as well if you would like to get in conversation and I offer to have a quick call to discuss the impact of this work on your efforts to work in the Tezos ecosystem!

Thank you very much and looking forward to get in touch!

Best regards
Carlo (jdsika)