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xmtp / libxmtp

LibXMTP is a shared library encapsulating the core functionality of the XMTP messaging protocol, such as cryptography, networking, and language bindings.
MIT License
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`grantInstallation(wallet, keyBundle, metadata)` #275

Closed jac18281828 closed 1 month ago

jac18281828 commented 11 months ago

Discussed in https://github.com/xmtp/libxmtp/discussions/274

Originally posted by **jac18281828** October 23, 2023 ### Installation Management `grantInstallation(wallet, keyBundle, metadata)` Declares that an installation is associated with a wallet. Currently, we do this by signing the installation’s keys using the wallet’s keys. In v3, an installation has two keys, a Curve25519 + Ed25519 key. In MLS, the keys may be different, but the overall concept is the same. One day we might consider adding an expiry date for the grant, before which it must be renewed. #### Pseudo Implementation ``` function saveAttribute(web3, name, value, validity) { signature_message = ['setAttribute', name, value, validity] owner_nonce = web3.call('nonce()') digest_payload = [ 0x19, 0, registry_address, owner_nonce, public_key, signature_message ] digest = keccak256(digest_payload) (sigV, sigR, sigS) = wallet.sign(digest) didReg = web3.contract(registry_address) didReg.send('setAttributeSigned', [public_key, sigV, sigR, sigS, name, value, validity]) } function saveInstallation() { web3 = new JsonRpc(RPC_URL, Network) install_key = generate_install_key() did = `did:xmtp:${did_id}` saveAttribute(web3, 'did:xmtp:v3:installkey', install_key) saveAttribute(web3, 'did:xmtp:v3:did, did) } ``` #### Required Configuration ``` Network := MAINNET | TESTNET RPC_URL = Ethereum node url REGISTRY_ADDRESS
jac18281828 commented 11 months ago

👀 @snormore @insipx @richardhuaaa