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CHIP-0031: Wallet signer QR transportation #106

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CHIP-0031: Wallet signer QR transportation #106

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cc952d8
Add new CHIP for Wallet signer QR transportation
danieljperry Mar 14, 2024
744d664
Assign CHIP-0031
danieljperry Mar 14, 2024
19e53f7
Add link to reference implementation
danieljperry Sep 6, 2024
1a6393d
Move CHIP-31 to Review
danieljperry Sep 6, 2024
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45 changes: 45 additions & 0 deletions CHIPs/chip-0031.md
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CHIP Number | 0031
:-------------|:----
Title | Wallet signer QR transportation
Description | A technique for transporting a QR code between a wallet and a signer
Author | [Matt Hauff](https://github.com/Quexington)
Editor | [Dan Perry](https://github.com/danieljperry)
Comments-URI | [CHIPs repo, PR #106](https://github.com/Chia-Network/chips/pull/106)
Status | Review
Category | Process
Sub-Category | Tooling
Created | 2024-03-14
Requires | [0027](https://github.com/Chia-Network/chips/pull/102)
Replaces | None
Superseded-By | None

## Abstract

After a wallet has serialized and subdivided a message using the wallet signer protocol, the wallet could transport the resulting BLOB using a communication method that it has pre-established with the signer. However, the wallet signer protocol also allows wallets and signers to use additional standardized transportation methods. This CHIP provides such a method specifically for transporting QR codes.

## Motivation

This CHIP is narrowly focused on QR code transportation. However, more CHIPs could be added as additional needs arise, such as transportation using a third-party service or a push notification.

## Backwards Compatibility

This CHIP does not introduce any backwards incompatibilities.

## Specification

This CHIP uses the python [segno](https://pypi.org/project/segno/) library to make QR codes and rotate them in place every 2 seconds or so. The frequency of rotation is configurable upon running the `segno` command.

## Reference Implementation

This CHIP is implemented in [signer.py](https://github.com/Chia-Network/chia-blockchain/blob/6560be415cddbc86c7932ea37b73d6d7e1176019/chia/cmds/signer.py#L40-L41).

## Security

CNI has conducted an internal security audit of the code from this CHIP's reference implementation.

## Additional Assets

None

## Copyright
Copyright and related rights waived via [CC0](https://creativecommons.org/publicdomain/zero/1.0/).