did-jwt/src/blockchains/index.ts

Library for Signing and Verifying JWTs that use DIDs as issuers and JWEs that use DIDs as recipients

import { publicKeyToAddress as bip122 } from './bip122.js'
import { publicKeyToAddress as cosmos } from './cosmos.js'
import { toEthereumAddress } from '../Digest.js'

export function verifyBlockchainAccountId(publicKey: string, blockchainAccountId: string | undefined): boolean {
  if (blockchainAccountId) {
    const chain = blockchainAccountId.split(':')
    switch (chain[0]) {
      case 'bip122':
        chain[chain.length - 1] = bip122(publicKey, chain[chain.length - 1])
        break
      case 'cosmos':
        chain[chain.length - 1] = cosmos(publicKey, chain[1])
        break
      case 'eip155':
        chain[chain.length - 1] = toEthereumAddress(publicKey)
        break
      default:
        return false
    }
    return chain.join(':').toLowerCase() === blockchainAccountId.toLowerCase()
  }
  return false
}