ChainCatcher news, Aptos Labs has launched a passwordless key authentication method for signing transactions on its Layer1 network. Users can log in using Touch ID or Face ID, with their private keys stored directly on the device, and the private keys synchronized with backup providers (iCloud or Google Password Manager). When signing transactions, they can directly use the universal key for signing.

ChainCatcher news, the Opclave developed by the Istanbul Technical University ITU Blockchain Club team has been shortlisted for the ETHGlobal Scaling 2023 hackathon. Opclave improves the ERC-4337 compatible smart contract account OP Stack, which uses signatures abstracted by Apple Enclave, allowing users to create and use non-custodial wallets with Apple Face-ID and Touch-ID without the need for a mnemonic. Its core idea is to turn Apple devices, such as iPhone and Macbook, into hardware wallets, initiating transactions from the trusted execution environment of Apple Secure Enclave to ensure security.At the same time, Opclave also features social recovery, batch processing, support for ERC20 Token payments, daily spending limits, and more. The team will also develop additional account abstraction features such as 2FA and email login, and support other chains like Starknet, zkSync, and Fuel. (source link)