mirror of https://github.com/status-im/specs.git
58 lines
2.9 KiB
Markdown
58 lines
2.9 KiB
Markdown
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# Status Account Creation and Maintenance Specification
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## Summary
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The core concept of an account in Status is a set of cryptographic keypairs. Namely, the combination of the following:
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1. a whisper chat identity keypair
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1. a set of cryptocurrency wallet keypairs
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Everything else associated with the contact is either verified or derived from the above items, including:
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- Ethereum address (future verification, currently the same base keypair)
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- 3 word mnemonic name
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- identicon
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- message signatures
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## 1 Initial Key Generation
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### 1.1 Public/Private Keypairs
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- An ECDSA (secp256k1 curve) public/private keypair MUST be generated via a [BIP43](https://github.com/bitcoin/bips/blob/master/bip-0043.mediawiki) derived path from a [BIP39](https://github.com/bitcoin/bips/blob/master/bip-0039.mediawiki) mnemonic seed phrase.
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- The default paths are defined as such:
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- Whisper Chat Key ($IK$): `m/43'/60'/1581'/0'/0` (post Multiaccount integration)
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- following [EIP1581](https://github.com/ethereum/EIPs/blob/master/EIPS/eip-1581.md)
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- DB encryption Key ($DBK$): `m/43'/60'/1581'/1'/0` (post Multiaccount integration)
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- following [EIP1581](https://github.com/ethereum/EIPs/blob/master/EIPS/eip-1581.md)
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- Status Wallet paths: `m/44'/60'/0'/0'/i` starting at `i=0`
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- following [BIP44](https://github.com/bitcoin/bips/blob/master/bip-0044.mediawiki)
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- NOTE: this (`i=0`) is also the current (and only) path for Whisper key before Multiaccount integration
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### 1.2 X3DH Prekey bundle creation
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- A client must create an amount of X3DH prekey bundles, each defined by the following items:
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- Identity Key: $IK$
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- Signed prekey: $SPK$
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- Prekey signature: $Sig(IK, \text{Encode}(SPK)$)
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- one-time prekey: $OPK$ (???? need this?)
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## 2 Account Broadcasting
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- A user is reponsible for broadcasting certain information publicly so that others may contact them.
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### 2.1 X3DH Prekey bundles
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- A client [MUST/SHOULD] regenerate a group of X3DH prekey bundles every 24 hours and broadcast them through the appropriate channels
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## 3 Optional Account additions
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### 3.1 ENS Username
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- A user MAY register a public username on the Ethereum Name System (ENS). This username is a user-chosen subdomain of the `stateofus.eth` ENS registration that maps to their whisper identity key ($IK$).
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- TODO: verify if this is contact code or public key
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### 3.2 User Chosen Name
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- An account MAY create a display name to replace the $IK$ generated 3-word pseudonym in chat screens. This chosen display name will become part of the publicly broadcasted profile of the account.
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### 3.3 User Profile Picture
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- An account MAY edit the $IK$ generated identicon with a chosen picture. This picture will become part of the publicly broadcasted profile of the account.
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### 3.4 Tribute to Talk
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- TODO - Couched until later
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### 3.5 Wallet Accounts
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- TODO (based in multiaccount)
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## Security Implications
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