A Key can be a public key from one of the three supported systems (ed25519, RSA-3072, ECDSA with p384). Or, it can be the ID of a smart contract instance, which is authorized to act as if it had a key. If an account has an ed25519 key associated with it, then the corresponding private key must sign any transaction to transfer cryptocurrency out of it. And similarly for RSA and ECDSA.
| Field | Type | Description | |
|---|---|---|---|
| key | oneof | | |
| | contractID | ContractID | smart contract instance that is authorized as if it had signed with a key |
| | ed25519 | | ed25519 public key bytes |
| | RSA_3072 | | RSA-3072 public key bytes |
| | ECDSA_384 | | ECDSA with the p-384 curve public key bytes |
| | thresholdKey | ThresholdKey | a threshold N followed by a list of M keys, any N of which are required to form a valid signature |
| | keyList | KeyList | A list of Keys of the Key type. |