feat(65/STATUS-ACCOUNTS): ported 2/ACCOUNT to vac rfcs (#617)

* feat(65/STATUS-ACCOUNTS): ported 2/ACCOUNT to vac rfcs

* fix: abs paths, 3 word mnemonic

* fix: include x3dh in security considerations

content/docs/rfcs/65/README.md

@@ -0,0 +1,115 @@
+---
+slug: 65
+title: 65/STATUS-ACCOUNTS
+name: Status Accounts
+status: draft
+category: Standards Track
+editor: Aaryamann Challani <aaryamann@status.im>
+contributors:
+- Corey Petty <corey@status.im>
+- Oskar Thorén <oskar@status.im>
+- Samuel Hawksby-Robinson <samuel@status.im>
+---
+
+# Abstract
+
+This specification explains what a Status account is, and how it is created and used.
+
+# Background
+
+The core concept of an account in Status is a set of cryptographic keypairs. Namely, the combination of the following:
+1. a Waku chat identity keypair
+1. a set of cryptocurrency wallet keypairs
+
+The Status node verifies or derives everything else associated with the contact from the above items, including:
+- Ethereum address (future verification, currently the same base keypair)
+- identicon
+- message signatures
+
+# Initial Key Generation
+## Public/Private Keypairs 
+- 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.
+- The default paths are defined as such:
+    - Waku Chat Key (`IK`): `m/43'/60'/1581'/0'/0`  (post Multiaccount integration)
+        - following [EIP1581](https://github.com/ethereum/EIPs/blob/master/EIPS/eip-1581.md)
+    - Status Wallet paths: `m/44'/60'/0'/0/i` starting at `i=0`
+        - following [BIP44](https://github.com/bitcoin/bips/blob/master/bip-0044.mediawiki)
+        - NOTE: this (`i=0`) is also the current (and only) path for Waku key before Multiaccount integration
+
+# Account Broadcasting
+- A user is responsible for broadcasting certain information publicly so that others may contact them.
+
+## X3DH Prekey bundles
+- Refer to [53/WAKU2-X3DH](/spec/53) for details on the X3DH prekey bundle broadcasting, as well as regeneration.
+
+# Optional Account additions
+
+## ENS Username
+- 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 Waku identity key (`IK`). 
+
+## User Profile Picture
+- 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.
+
+<!-- TODO: Elaborate on wallet account and multiaccount -->
+
+# Wire Format
+
+Below is the wire format for the account information that is broadcasted publicly.
+An Account is referred to as a Multiaccount in the wire format.
+
+```proto
+message MultiAccount {
+  string name = 1; // name of the account
+  int64 timestamp = 2; // timestamp of the message
+  string identicon = 3; // base64 encoded identicon
+  repeated ColorHash color_hash = 4; // color hash of the identicon
+  int64 color_id = 5; // color id of the identicon
+  string keycard_pairing = 6; // keycard pairing code
+  string key_uid = 7; // unique identifier of the account
+  repeated IdentityImage images = 8; // images associated with the account
+  string customization_color = 9; // color of the identicon
+  uint64 customization_color_clock = 10; // clock of the identicon color, to track updates
+
+  message ColorHash {
+    repeated int64 index = 1;
+  }
+
+  message IdentityImage {
+    string key_uid = 1; // unique identifier of the image
+    string name = 2; // name of the image
+    bytes payload = 3; // payload of the image
+    int64 width = 4; // width of the image
+    int64 height = 5; // height of the image
+    int64 filesize = 6; // filesize of the image
+    int64 resize_target = 7; // resize target of the image
+    uint64 clock = 8; // clock of the image, to track updates
+  }
+}
+```
+
+The above payload is broadcasted when 2 devices that belong to a user need to be paired.
+
+# Security Considerations
+
+- This specification inherits security considerations of [53/WAKU2-X3DH](/spec/53) and [54/WAKU2-X3DH-SESSIONS](/spec/54).
+
+# Copyright
+
+Copyright and related rights waived via [CC0](https://creativecommons.org/publicdomain/zero/1.0/).
+
+# References
+
+## normative
+
+- [53/WAKU2-X3DH](/spec/53)
+- [54/WAKU2-X3DH-SESSIONS](/spec/54)
+- [55/STATUS-1TO1-CHAT](/spec/55)
+
+## informative
+
+- [BIP43](https://github.com/bitcoin/bips/blob/master/bip-0043.mediawiki)
+- [BIP39](https://github.com/bitcoin/bips/blob/master/bip-0039.mediawiki)
+- [EIP1581](https://github.com/ethereum/EIPs/blob/master/EIPS/eip-1581.md)
+- [BIP44](https://github.com/bitcoin/bips/blob/master/bip-0044.mediawiki)
+- [Ethereum Name System](https://ens.domains/)
+- [Status Multiaccount](/spec/63)

content/menu/index.md

@@ -53,6 +53,7 @@ bookMenuLevels: 1
   - [54/WAKU2-X3DH-SESSIONS]({{< relref "/docs/rfcs/54/README.md" >}})
   - [55/STATUS-1TO1-CHAT]({{< relref "/docs/rfcs/55/README.md" >}})
   - [56/STATUS-COMMUNITIES]({{< relref "/docs/rfcs/56/README.md" >}})
+  - [65/STATUS-ACCOUNTS]({{< relref "/docs/rfcs/65/README.md" >}})
 - Stable
   - [2/MVDS]({{< relref "/docs/rfcs/2/README.md" >}})
   - [6/WAKU1]({{< relref "/docs/rfcs/6/README.md" >}})