Altme Wallet

Altme is a decentralized identity wallet using the W3C self-sovereign identity standard.

Open-source, Free

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What is Altme Wallet?

Altme is a non-custodial multichain wallet built on decentralized identity (DID) that lets users manage crypto assets, NFTs, and verifiable credentials while safeguarding their privacy. Users can prove identity, age, email, phone, KYC/AML compliance, and more using cryptographically signed verifiable credentials — deciding what information to share, with whom, and for how long. Altme also supports on-chain DeFi compliance, enabling users to prove regulatory compliance directly on-chain. The wallet is compliant with the European Blockchain (EBSI) identity standard.

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Developer resources from Alchemy

ERC-4337 UserOperation packing vulnerability

Blog

Technical

ERC-4337 UserOperation packing vulnerability

On March 7th, 2023, Alchemy and members of the open source community, identified calldata decoding issues with the ERC-4337 EntryPoint contract and the example VerifyingPaymaster contract.