Decrypt S/MIME using a Certificate with Private Key Access

See more MIME Examples

Loads a CMS/PKCS #7 encrypted S/MIME message and decrypts it back to the original MIME content.

DecryptUsingCert takes a single certificate that already has access to its associated private key, for example a certificate loaded from a PFX.

The file paths are relative to the application's current working directory. Absolute paths may also be used. Supply the paths appropriate to your own environment.

import { Cert, Mime } from '@chilkat/react-native'

function chilkatExample() {
  const mime = new Mime();
  try {
    mime.loadMimeFile('qa_data/encrypted.eml');
  } catch {
    console.log(mime.lastErrorText);
    return;
  }

  // Decrypt using a certificate that already provides access to its private key (for example loaded
  // from a PFX).  The only argument is the certificate.
  const pfxPassword = 'myPfxPassword';
  const cert = new Cert();
  try {
    cert.loadPfxFile('qa_data/recipient.pfx', pfxPassword);
  } catch {
    console.log(cert.lastErrorText);
    return;
  }

  try {
    mime.decryptUsingCert(cert);
  } catch {
    console.log(mime.lastErrorText);
    return;
  }

  let body: string;
  try {
    body = mime.getBodyDecoded();
  } catch {
    console.log(mime.lastErrorText);
    return;
  }

  console.log(body);
}