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@zk-jwt/helpers

The @zk-jwt/helpers package provides utility functions for JWT verification and cryptographic operations. It includes functions for handling RSA signatures, public keys, JWT messages, and hashes.

Installation​

yarn add @zk-jwt/helpers

input-generators.ts​

The input-generators.ts file provides functions for generating inputs to the JWTVerifier circuit. It includes utilities for JWT verification, input generation, and handling anonymous domains.

Key Interfaces:​

export interface RSAPublicKey {
    n: string;    // Base64-encoded modulus
    e: number;    // Public exponent
}

export interface JWTInputGenerationArgs {
    maxMessageLength?: number;
    verifyAnonymousDomains?: boolean;
    anonymousDomainsTreeHeight?: number;
    anonymousDomainsTreeRoot?: bigint;
    emailDomainPath?: bigint[];
    emailDomainPathHelper?: number[];
}

Main Function:​

async function generateJWTVerifierInputs(
    rawJWT: string,
    publicKey: RSAPublicKey,
    accountCode: bigint,
    params: JWTInputGenerationArgs = {}
)

Testing​

To test the input generator, you can run the following command:

yarn test