📄️ Cryptographic Protection for Authenticator Inputs
How to properly protect authenticator input parameters with cryptographic verification to prevent input tampering attacks
📄️ Transaction Data Cryptographic Protection in Authenticators
How to properly implement transaction data cryptographic protection in authenticator functions to prevent transaction tampering attacks.
📄️ Binding Sponsor Approval to Sender Identity
How sponsor authenticators must cryptographically bind their approval to the sender's identity — the sender's authenticator function and auth digest — to prevent sender-side identity swaps after the sponsor has signed.
📄️ Authenticator Shared Object Inputs
How to mitigate the risks of using shared objects as inputs to authenticator functions.