173 lines
6.6 KiB
Markdown
173 lines
6.6 KiB
Markdown
<!--
|
|
order: 2
|
|
-->
|
|
|
|
# Accounts
|
|
|
|
This document describes the in-built accounts system of Ethermint. {synopsis}
|
|
|
|
## Pre-requisite Readings
|
|
|
|
- [Cosmos SDK Accounts](https://docs.cosmos.network/master/basics/accounts.html) {prereq}
|
|
- [Ethereum Accounts](https://ethereum.org/en/whitepaper/#ethereum-accounts) {prereq}
|
|
|
|
## Ethermint Accounts
|
|
|
|
Ethermint defines its own custom `Account` type that uses Ethereum's ECDSA secp256k1 curve for keys. This
|
|
satisfies the [EIP84](https://github.com/ethereum/EIPs/issues/84) for full [BIP44](https://github.com/bitcoin/bips/blob/master/bip-0044.mediawiki) paths.
|
|
The root HD path for Ethermint-based accounts is `m/44'/60'/0'/0`.
|
|
|
|
+++ https://github.com/tharsis/ethermint/blob/main/types/account.pb.go#L28-L33
|
|
|
|
## Addresses and Public Keys
|
|
|
|
[BIP-0173](https://github.com/satoshilabs/slips/blob/master/slip-0173.md) defines a new format for segregated witness output addresses that contains a human-readable part that identifies the Bech32 usage. Ethermint uses the following HRP (human readable prefix) as the base HRP:
|
|
|
|
| Network | Mainnet | Testnet | Regtest |
|
|
|-----------|---------|---------|---------|
|
|
| Ethermint | `ethm` | `ethm` | |
|
|
|
|
There are 3 main types of HRP for the `Addresses`/`PubKeys` available by default on Ethermint:
|
|
|
|
- Addresses and Keys for **accounts**, which identify users (e.g. the sender of a `message`). They are derived using the **`eth_secp256k1`** curve.
|
|
- Addresses and Keys for **validator operators**, which identify the operators of validators. They are derived using the **`eth_secp256k1`** curve.
|
|
- Addresses and Keys for **consensus nodes**, which identify the validator nodes participating in consensus. They are derived using the **`ed25519`** curve.
|
|
|
|
| | Address bech32 Prefix | Pubkey bech32 Prefix | Curve | Address byte length | Pubkey byte length |
|
|
|--------------------|-----------------------|----------------------|-----------------|---------------------|--------------------|
|
|
| Accounts | `ethm` | `ethmpub` | `eth_secp256k1` | `20` | `33` (compressed) |
|
|
| Validator Operator | `ethmvaloper` | `ethmvaloperpub` | `eth_secp256k1` | `20` | `33` (compressed) |
|
|
| Consensus Nodes | `ethmvalcons` | `ethmvalconspub` | `ed25519` | `20` | `32` |
|
|
|
|
## Address formats for clients
|
|
|
|
`EthAccount` can be represented in both [Bech32](https://en.bitcoin.it/wiki/Bech32) (`ethm1...`) and hex (`0x...`) formats for Ethereum's Web3 tooling compatibility.
|
|
|
|
The Bech32 format is the default format for Cosmos-SDK queries and transactions through CLI and REST
|
|
clients. The hex format on the other hand, is the Ethereum `common.Address` representation of a
|
|
Cosmos `sdk.AccAddress`.
|
|
|
|
- **Address (Bech32)**: `ethm1j800cll9vq7l4rxfke2u74mjgkdlzrr0r5mu97`
|
|
- **Address ([EIP55](https://eips.ethereum.org/EIPS/eip-55) Hex)**: `0x91defC7fE5603DFA8CC9B655cF5772459BF10c6f`
|
|
- **Compressed Public Key**: `{"@type":"/ethermint.crypto.v1.ethsecp256k1.PubKey","key":"Aq9WtHGKtvX523b2ptvimGVfp3hZ1GDxVdINYWBM9+Gy"}`
|
|
|
|
### Address conversion
|
|
|
|
The `ethermintd debug addr <address>` can be used to convert an address between hex and bech32 formats. For example:
|
|
|
|
:::: tabs
|
|
::: tab Bech32
|
|
|
|
```bash
|
|
ethermintd debug addr ethm10jmp6sgh4cc6zt3e8gw05wavvejgr5pwtu750w
|
|
Address bytes: [124 182 29 65 23 174 49 161 46 57 58 28 250 59 172 102 100 129 208 46]
|
|
Address (hex): 7CB61D4117AE31A12E393A1CFA3BAC666481D02E
|
|
Address (EIP-55): 0x7cB61D4117AE31a12E393a1Cfa3BaC666481D02E
|
|
Bech32 Acc: ethm10jmp6sgh4cc6zt3e8gw05wavvejgr5pwtu750w
|
|
Bech32 Val: ethmvaloper10jmp6sgh4cc6zt3e8gw05wavvejgr5pwyv5chn
|
|
```
|
|
|
|
:::
|
|
::: tab Hex
|
|
|
|
```bash
|
|
ethermintd debug addr 0x7cB61D4117AE31a12E393a1Cfa3BaC666481D02E
|
|
Address bytes: [124 182 29 65 23 174 49 161 46 57 58 28 250 59 172 102 100 129 208 46]
|
|
Address (hex): 7CB61D4117AE31A12E393A1CFA3BAC666481D02E
|
|
Address (EIP-55): 0x7cB61D4117AE31a12E393a1Cfa3BaC666481D02E
|
|
Bech32 Acc: ethm10jmp6sgh4cc6zt3e8gw05wavvejgr5pwtu750w
|
|
Bech32 Val: ethmvaloper10jmp6sgh4cc6zt3e8gw05wavvejgr5pwyv5chn
|
|
```
|
|
|
|
:::
|
|
::::
|
|
|
|
### Key output
|
|
|
|
::: tip
|
|
The Cosmos SDK Keyring output (i.e `ethermintd keys`) only supports addresses and public keys in Bech32 format.
|
|
:::
|
|
|
|
We can use the `keys show` command of `ethermintd` with the flag `--bech <type> (acc|val|cons)` to
|
|
obtain the addresses and keys as mentioned above,
|
|
|
|
:::: tabs
|
|
::: tab Account
|
|
|
|
```bash
|
|
ethermintd keys show mykey --bech acc
|
|
- name: mykey
|
|
type: local
|
|
address: ethm1qsklxwt77qrxur494uvw07zjynu03dq9alwh37
|
|
pubkey: '{"@type":"/ethermint.crypto.v1.ethsecp256k1.PubKey","key":"A8nbJ3eW9oAb2RNZoS8L71jFMfjk6zVa1UISYgKK9HPm"}'
|
|
mnemonic: ""
|
|
```
|
|
|
|
:::
|
|
::: tab Validator
|
|
|
|
```bash
|
|
ethermintd keys show test --bech val
|
|
- name: mykey
|
|
type: local
|
|
address: ethmvaloper1qsklxwt77qrxur494uvw07zjynu03dq9rdsrlq
|
|
pubkey: '{"@type":"/ethermint.crypto.v1.ethsecp256k1.PubKey","key":"A8nbJ3eW9oAb2RNZoS8L71jFMfjk6zVa1UISYgKK9HPm"}'
|
|
mnemonic: ""
|
|
```
|
|
|
|
:::
|
|
::: tab Consensus
|
|
|
|
```bash
|
|
ethermintd keys show test --bech cons
|
|
- name: mykey
|
|
type: local
|
|
address: ethmvalcons1qsklxwt77qrxur494uvw07zjynu03dq9h7rlnp
|
|
pubkey: '{"@type":"/ethermint.crypto.v1.ethsecp256k1.PubKey","key":"A8nbJ3eW9oAb2RNZoS8L71jFMfjk6zVa1UISYgKK9HPm"}'
|
|
mnemonic: ""
|
|
```
|
|
|
|
:::
|
|
::::
|
|
|
|
## Querying an Account
|
|
|
|
You can query an account address using the CLI, gRPC or
|
|
|
|
### Command Line Interface
|
|
|
|
```bash
|
|
# NOTE: the --output (-o) flag will define the output format in JSON or YAML (text)
|
|
ethermintd q auth account $(ethermintd keys show <MYKEY> -a) -o text
|
|
|
|
|
'@type': /ethermint.types.v1beta1.EthAccount
|
|
base_account:
|
|
account_number: "3"
|
|
address: inj14au322k9munkmx5wrchz9q30juf5wjgz2cfqku
|
|
pub_key: null
|
|
sequence: "0"
|
|
code_hash: xdJGAYb3IzySfn2y3McDwOUAtlPKgic7e/rYBF2FpHA=
|
|
```
|
|
|
|
### Cosmos gRPC and REST
|
|
|
|
``` bash
|
|
# GET /cosmos/auth/v1beta1/accounts/{address}
|
|
curl -X GET "http://localhost:10337/cosmos/auth/v1beta1/accounts/ethm14au322k9munkmx5wrchz9q30juf5wjgz2cfqku" -H "accept: application/json"
|
|
```
|
|
|
|
### JSON-RPC
|
|
|
|
To retrieve the Ethereum hex address using Web3, use the JSON-RPC [`eth_accounts`](./../api/json-rpc/endpoints#eth-accounts) or [`personal_listAccounts`](./../api/json-rpc/endpoints#personal-listAccounts) endpoints:
|
|
|
|
```bash
|
|
# query against a local node
|
|
curl -X POST --data '{"jsonrpc":"2.0","method":"eth_accounts","params":[],"id":1}' -H "Content-Type: application/json" http://localhost:8545
|
|
|
|
curl -X POST --data '{"jsonrpc":"2.0","method":"personal_listAccounts","params":[],"id":1}' -H "Content-Type: application/json" http://localhost:8545
|
|
```
|
|
|
|
## Next {hide}
|
|
|
|
Learn about Ethermint [transactions](./transactions.md) {hide}
|