Accounts¶
This document describes the in-built accounts system of OKC.
Pre-requisite Readings¶
OKC Accounts¶
OKC defines its own custom Account
type that uses Ethereum’s ECDSA secp256k1 curve for keys. This
satisfies the EIP84 for full BIP44 paths.
The root HD path for OKC-based accounts is m/44'/60'/0'/0
.
Addresses and Public Keys¶
There are 3 main types of Addresses
/PubKeys
available by default on OKC:
- 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 | ex |
expub |
eth_secp256k1 |
20 |
33 (compressed) |
Validator Operator | exvaloper |
exvaloperpub |
eth_secp256k1 |
20 |
33 (compressed) |
Consensus Nodes | exvalcons |
exvalconspub |
ed25519 |
20 |
32 |
Address formats for clients¶
OKCAccount
s can be represented in both Bech32 and hex format 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):
ex1hcngft7gfkhn8z8fnlajzh7agyt0az0v6ztmme
- Address (EIP55 Hex):
0xBE2684Afc84daf3388E99FFB215FdD4116FE89EC
- Compressed Public Key (Bech32):
expub17weu6qepqgantzvj79rywafrxmye524tpa8kp6akjct3nw7wel623lsnfwynqyfe75k
You can query an account address using the OKC CLI or REST clients:
# NOTE: the --output (-o) flag will define the output format in JSON or YAML (text)
exchaincli q auth account $(exchaincli keys show <MYKEY> -a) -o text
|
address: ex1hcngft7gfkhn8z8fnlajzh7agyt0az0v6ztmme
eth_address: 0xBE2684Afc84daf3388E99FFB215FdD4116FE89EC
coins:
- denom: okt
amount: "10000000"
public_key: expub17weu6qepqgantzvj79rywafrxmye524tpa8kp6akjct3nw7wel623lsnfwynqyfe75k
account_number: 0
sequence: 1
code_hash: c5d2460186f7233c927e7db2dcc703c0e500b653ca82273b7bfad8045d85a470
# GET /auth/accounts/{address}
curl -X GET "<NODE_IP>/auth/accounts/ex1hcngft7gfkhn8z8fnlajzh7agyt0az0v6ztmme" -H "accept: application/json"
::: tip
The Cosmos SDK Keyring output (i.e exchaincli keys
) only supports addresses and public keys in Bech32 format.
:::
To retrieve the Ethereum hex address using Web3, use the JSON-RPC oec_accounts
endpoint:
# 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:26664
Next¶
Learn about OKC transactions