const p12 = parsePKCS12(base64EncodedP12, password); // deserializes encodedP12
const certificate = getX509Certificate(p12); // extracts single certificate from p12
const sha1Fingerprint = getCertificateFingerprint(certificate, {
  hashAlgorithm: 'sha1',
}); // Hash like 02ec75a7181c575757baa931fe3105b7125ff10a

const p12 = parsePKCS12(base64EncodedP12, password); // deserializes encodedP12
const certificate = getX509CertificateByFriendlyName(p12, alias); // extracts single certificate stored under alias in p12
const sha1Fingerprint = getCertificateFingerprint(certificate, {
  hashAlgorithm: 'sha1',
}); // Hash like 02ec75a7181c575757baa931fe3105b7125ff10a