account-abstraction

A series of micro-validators for account abstraction that are called via a proxy contract to have the cheapest cost for a user.

Building

./compile <Preview|Preprod|Mainnet> [verbose|silent|compact]

Configuring

To configure as a user, fill in the new user tx hash and output index. Then follow the build process above.

aiken.toml

[config.preview]
new_user_output_index = <Fill in User Output Index>
one_shot_output_index = <Included via Setup>
namespace = "Bullet"

[config.preview.bullet_hash]
bytes = "<Generated>"
encoding = "hex"

[config.preview.nonce_bullet_hash]
bytes = "<Generated>"
encoding = "hex"

[config.preview.proxy_hash]
bytes = "<Generated>"
encoding = "hex"

[config.preview.stake_proxy_hash]
bytes = "<Generated>"
encoding = "hex"

[config.preview.new_user_tx_hash]
bytes = "<Fill in User Tx Hash>"
encoding = "hex"

[config.preview.one_shot_tx_hash]
bytes = "<Included via Setup>"
encoding = "hex"

[config.preview.one_shot_mint_hash]
bytes = "<Generated>"
encoding = "hex"

Testing

To run all tests, simply do:

aiken check

To run only tests matching the string foo, do:

aiken check -m foo

Documentation

The account abstraction validator set called Bullet uses a series of link validators to reduce script ref size costs as well as using efficient coding practices to have low tx cost for each action. The contract offers many levels of safety customized to each users needs. Below is a diagram of the validators and how they link together

The straight lines represent a validator parameterized by the hash of the other validator it points to. The dashed lines represents a validator link via a global state held by a datum or token name that is equal to the hash of the validator being pointed to.

Multisig

Bullet allows for any combination of Schnorr, Ecdsa, and Ed25519 private key/public key to be used. Note that greater usages of many signatures will cost more mem and cpu units on chain.

Vault

Bullet enables users to specify utxos that protected from being used in DeFi. These utxos can only be spent via the wallet interface. This helps protect users against draining attacks or misusage by existing dApps.

As a side note this allows offchain indexers to track how much value Bullet users are utilizing dApps for versus which assets are stored in the vault. Thus this could be an indicator for DeFi health.

Intentions

See here for details on Intentions

Resources

Find more on the Aiken's user manual. Discuss more about Bullet in in the TxPipe Discord.