Creating and Managing Accounts

Kaptos provides a few ways to generate account credentials, both legacy and SingleKeyAccounts. You can either generate a new account or derive an account from a private key.

Legacy Account

Kaptos offers a straightforward method to generate a legacy account using the Account class. By invoking the static method generate(), you can create a new legacy account either by passing no arguments or by explicitly setting the scheme to SigningSchemeInput.Ed25519 and the legacy property to true as shown below.

Generate a New Account

To create a new legacy account, you can generate a new account credential using the Account.generate() method. This method will create a new account with a new key pair.

val account = Account.generate()

You can also use the Ed25519Account class that provides a nullary method, generate(), to create a new account:

val account = Ed25519Account.generate()

Derive an Account from a Private Key

If you have a private key, you can use it to create an Account object to manage those credentials.

val privateKey = Ed25519PrivateKey("myEd25519privatekeystring")

val account = Account.fromPrivateKey(privateKey)

Single Key Account

The SDK offers two ways to generate a single key account: using either the SingleKeyAccount or the Account class. In both cases, you can create a new account by calling the static generate() method. You’ll need to specify the scheme, and for the Account class, you can optionally set the legacy property to false.

val secp256k1SKAccount = SingleKeyAccount.generate(SigningSchemeInput.Secp256k1)
val ed25519SKAccount = SingleKeyAccount.generate(SigningSchemeInput.Ed25519)

Using the Account class, you can create a new single key account by setting the scheme to SigningSchemeInput.Secp256k1 and optionally setting the legacy property to false. Alternatively, you can set the scheme to SigningSchemeInput.Ed25519 and ensure the legacy property is also set to false.

val secp256k1SKAccount = Account.generate(scheme = SigningSchemeInput.Secp256k1)
val ed25519SKAccount = Account.generate(scheme = SigningSchemeInput.Ed25519, legacy = false)

On-chain Account Creation

It is also worth noting that Account generation does not create the account on-chain. You must fund the account on-chain to use it for transactions. On test networks, you can fund an account programmatically by asking a “faucet” for test tokens. You can do this as shown below:

val fundedAccount = aptos.fundAccount(aliceAccount.accountAddress, FUNDING_AMOUNT)

This only works on devnet. On testnet you can mint at the mint page.