Accounts

Dis page get plenti plenti grammar and we no fit translate everything

Abobi

Dis document go yarn about something important for Injective Chain: how dem keep track of your money.

Abeg, before you jump into di main thing, read dis one first.

• Cosmos SDK Accounts

• Ethereum Accounts

Accounts for Injective

Injective don make ein own account as dem want am, dis na Account type wey dey use Ethereum's ECDSA secp256k1 curve for keys. Ein dey belleful di EIP84 for full BIP44 paths. Di main di main HD path for Injective-based accounts na m/44'/60'/0'/0.

Addresses and Public Keys

Na 3 Ogbonke Addresses/PubKeys dey from di start as dem make Injective:

• One na di Addresses and Keys for accounts, wey dey see users (e.g. the sender of a message). Dem dey get am are with di eth_secp256k1 curve.

• Another na di Addresses and Keys for validator operators, wey dey put eye for di operators of validators. You fit use dieth_secp256k1 curve get am.

• Another come be di Addresses and Keys for consensus nodes, e dey identify divalidator nodes wey dey put mouth for consensus. You fit use died25519 curve get am.

	Address bech32 Prefix	Pubkey bech32 Prefix	Curve	Address byte length	Pubkey byte length
Accounts	inj	injpub	eth_secp256k1	20	33 (compressed)
Validator Operator	injvaloper	injvaloperpub	eth_secp256k1	20	33 (compressed)
Consensus Nodes	injvalcons	injvalconspub	ed25519	20	32

Address formats for clients

EthAccount fit turn up as Bech32 and hex format wey dem dey use for Ethereum's Web3 tooling compatibility.

Di Bech32 format na di default format wey dem dey use for Cosmos-SDK queries and transactions through CLI and REST clients. Di hex format for di other hand, na di Ethereum common.Address representation of a Cosmos sdk.AccAddress.

• Address (Bech32): inj14au322k9munkmx5wrchz9q30juf5wjgz2cfqku

• Address (EIP55 Hex): 0xAF79152AC5dF276D9A8e1E2E22822f9713474902

• Compressed Public Key: {"@type":"/injective.crypto.v1beta1.ethsecp256k1.PubKey","key":"ApNNebT58zlZxO2yjHiRTJ7a7ufjIzeq5HhLrbmtg9Y/"}

You fit use Cosmos CLI or REST clients query account address

# NOTE: the --output (-o) flag will define the output format in JSON or YAML (text)
injectived q auth account $(injectived keys show <MYKEY> -a) -o text
|
  '@type': /injective.types.v1beta1.EthAccount
  base_account:
    account_number: "3"
    address: inj14au322k9munkmx5wrchz9q30juf5wjgz2cfqku
    pub_key: null
    sequence: "0"
  code_hash: xdJGAYb3IzySfn2y3McDwOUAtlPKgic7e/rYBF2FpHA=

# GET /cosmos/auth/v1beta1/accounts/{address}
curl -X GET "http://localhost:10337/cosmos/auth/v1beta1/accounts/inj14au322k9munkmx5wrchz9q30juf5wjgz2cfqku" -H "accept: application/json"

Check di Swagger API reference for thedi full gist on top accounts API matter.

::: tip The Cosmos SDK Keyring output (i.e injectived keys) dey only supports addresses in Bech32 format. :::

Deriving Injective Account from a private key/mnemonic​

Make we see how di code go be to derive Injective Account from a private key and/or a mnemonic phase:

import { Wallet } from 'ethers'
import { Address as EthereumUtilsAddress } from 'ethereumjs-util'

const mnemonic = "indoor dish desk flag debris potato excuse depart ticket judge file exit"
const privateKey = "afdfd9c3d2095ef696594f6cedcae59e72dcd697e2a7521b1578140422a4f890"
const defaultDerivationPath = "m/44'/60'/0'/0/0"
const defaultBech32Prefix = 'inj'
const isPrivateKey: boolean = true /* just for the example */

const wallet = isPrivateKey ? Wallet.fromMnemonic(mnemonic, defaultDerivationPath) : new Wallet(privateKey)
const ethereumAddress = wallet.address
const addressBuffer = EthereumUtilsAddress.fromString(ethereumAddress.toString()).toBuffer()
const injectiveAddress = bech32.encode(defaultBech32Prefix, bech32.toWords(addressBuffer))

Make we put eye for how code to derive a public key from a private key dey:

import secp256k1 from 'secp256k1'

const privateKey = "afdfd9c3d2095ef696594f6cedcae59e72dcd697e2a7521b1578140422a4f890"
const privateKeyHex = Buffer.from(privateKey.toString(), 'hex')
const publicKeyByte = secp256k1.publicKeyCreate(privateKeyHex)

const buf1 = Buffer.from([10])
const buf2 = Buffer.from([publicKeyByte.length])
const buf3 = Buffer.from(publicKeyByte)

const publicKey = Buffer.concat([buf1, buf2, buf3]).toString('base64')
const type = '/injective.crypto.v1beta1.ethsecp256k1.PubKey'