@hashgraph/hedera-identify-snap/src/did/key/keyDidUtils.ts

A snap for managing Decentralized Identifiers(DIDs)

/*-
 *
 * Hedera Identify Snap
 *
 * Copyright (C) 2024 Hedera Hashgraph, LLC
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *      http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 *
 */

import { bytesToMultibase, hexToBytes } from '@veramo/utils';

const keyCodecs = {
  Ed25519: 'ed25519-pub',
  X25519: 'x25519-pub',
  Secp256k1: 'secp256k1-pub',
} as const;

export function getDidKeyIdentifier(
  publicKey: string,
  keyType: string,
): string {
  return bytesToMultibase(
    hexToBytes(publicKey),
    'base58btc',
    keyCodecs[keyType as keyof typeof keyCodecs],
  );
}