SNIP-12

Off-chain signatures (a la EIP712)

starknet L2 interface review Poseidon

Native status: Review
Enables: Typed-data hashing and signing
Specification: https://github.com/starknet-io/SNIPs/blob/main/SNIPS/snip-12.md

Starknet's typed structured-data hashing and signing standard, the EIP-712 analog: it defines a domain-separated hash over typed messages so wallets can display human-readable data and contracts can verify off-chain signatures. The hash is computed with the Starknet Poseidon over the STARK-friendly prime field.

Implementations

cairo-contracts cairo audited report
starknet.js typescript not independently audited

Relationships

Equivalent to: ZIP-0224, FIP-0092, MIP-0003, aleo-varuna, penumbra-groth16

Sources

https://docs.starknet.io/