Module permit 

ERC20Permit pallet for signature-based approvals (EIP-2612).

This pallet stores permit-related state (nonces) and provides EIP-712 signature verification for gasless approvals.

Security Notes

• Nonce management: Use use_permit (not verify_permit) to atomically verify and consume permits. This prevents replay attacks.
• Deadline validation: Permits are validated against UNIX timestamps.
• Domain separation: Each verifying contract has its own domain separator.
• Signature malleability: The s value is checked to be in the lower half of the secp256k1 curve order to prevent signature malleability attacks.

Re-exports

pub use pallet::*;

Modules

pallet

The pallet module in each FRAME pallet hosts the most important items needed to construct this pallet.