this is where the term account abstraction comes from: an account is abstracted from the signer.
they do not support concurrent transactions.
You will also enjoy the convenience of a centralized exchange within a decentralized exchange. However, your funds will remain entirely in your control, reassuringly eliminating CEX risks such as insolvency or a rug pull.
account abstraction smart contract specification ERC-4337 was written into The Splurge as a key element in the shift from EOA wallets to smart contract wallets.
Private key → public key → Keccak256 hash → last 20 Bytes → hexadecimal string (EOA address)
node validation rules
Transaction signature → ec_recover → public key → address (generated using the above rule) → compare to the address to be operated on
the core setting of EOA is to act as the initiator of a transaction and pay gas
Simpler and quantum-resistant digital signatures are a clear improvement over the current ECDSA.
e inability to perform multiple operations at once
Several wallet solutions attempt to address these issues.
MPC wallets and smart contract wallets are not completely independent solutions
Argent wallet uses a smart contract wallet, and pioneered the social recovery model
However, the CA’s inability to actively operate and pay for gas is limiting
Since transactions can only start from an EOA, smart contract wallets typically provide a relay service.
making it impossible for new users to join quickly
The answer? Account abstraction (AA).
you can control your wallet assets without managing your private key; the separation of the signer and the account itself allows you to operate transactions with fewer security hassles
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