Getting Started Guide

npm install @the-hashgraph-group-ag/cryptosuites-core

npm install @the-hashgraph-group-ag/cryptosuites-eddsa-v1

npm install @the-hashgraph-group-ag/signer-internal-ed25519

import {
  ProofCreator,
  ProofVerifier,
  Signer,
  canonicalizer,
  hashing
} from '@the-hashgraph-group-ag/cryptosuites-core';

import { EdDSAProofCreator, EdDSAProofVerifier } from '@the-hashgraph-group-ag/cryptosuites-eddsa-v1';
import { InternalEd25519Signer, InternalEd25519Verifier } from '@the-hashgraph-group-ag/signer-internal-ed25519';

// Initialize components
const proofCreator = new EdDSAProofCreator();
const signer = new InternalEd25519Signer(privateKey);

// Create proof options
const proofOptions = {
  proofPurpose: 'assertionMethod',
  verificationMethod: 'did:example:123#key-1',
};

// Create and sign document
const securedDocument = await signer.sign(
  inputDocument,
  proofOptions,
  proofCreator
);

// Initialize verifier
const proofVerifier = new EdDSAProofVerifier();
const verifier = new InternalEd25519Verifier();

// Verify document
const isValid = await verifier.verify(
  securedDocument,
  { verificationMethodResolver: resolveKey },
  [proofVerifier]
);