React Native Requires Chilkat v11.0.0+

Renew a DigiCert Certificate from an EST-enabled profile

See more Certificates Examples

Demonstrates how to renew a certificate from an EST-enabled profile in DigiCert​​®​​ Trust Lifecycle Manager. (The certificate must be within the renewal window configured in the certificate profile. The CSR must have same Subject DN values as the original certificate.) React Native

import { BinData, Cert, Csr, Ecc, Http, HttpResponse, PrivateKey, Prng } from '@chilkat/react-native'

async function chilkatExample() {
  // This example requires the Chilkat API to have been previously unlocked.
  // See Global Unlock Sample for sample code.

  // The example below duplicates the following OpenSSL commands:
  // 
  // # Name of certificate as argument 1
  // 
  // # Make new key
  // openssl ecparam -name prime256v1 -genkey -noout -out ${1}.key.pem
  // 
  // # Make csr
  // openssl req -new -sha256 -key ${1}.key.pem -out ${1}.p10.csr -subj "/CN=${1}"
  // 
  // # Request new cert
  // curl -v --cacert data/ca.pem --cert data/${1}.pem --key data/${1}.key.pem 
  //     --data-binary @${1}.p10.csr -o ${1}.p7.b64 -H "Content-Type: application/pkcs10" https://clientauth.demo.one.digicert.com/.well-known/est/IOT/simplereenroll
  // 
  // # Convert to PEM
  // openssl base64 -d -in ${1}.p7.b64 | openssl pkcs7 -inform DER -outform PEM -print_certs -out ${1}.pem

  // ------------------------------------------------------------------------------------------------------------------

  // Create a Fortuna PRNG and seed it with system entropy.
  // This will be our source of random data for generating the ECC private key.
  const fortuna = new Prng();
  const entropy = fortuna.getEntropy(32, 'base64');
  fortuna.addEntropy(entropy, 'base64');

  const ec = new Ecc();

  // Generate a random EC private key on the prime256v1 curve.
  const privKey = new PrivateKey();
  try {
    ec.genKey('prime256v1', fortuna, privKey);
  } catch {
    console.log(ec.lastErrorText);
    return;
  }

  // Create the CSR object and set properties.
  const csr = new Csr();

  // Specify your CN
  csr.commonName = 'mysubdomain.mydomain.com';

  // Create the CSR using the private key.
  const bdCsr = new BinData();
  try {
    csr.genCsrBd(privKey, bdCsr);
  } catch {
    console.log(csr.lastErrorText);
    return;
  }

  // Save the private key and CSR to files.
  privKey.savePkcs8EncryptedPemFile('password', 'c:/temp/qa_output/ec_privkey.pem');

  bdCsr.writeFile('c:/temp/qa_output/csr.pem');

  // ----------------------------------------------------------------------
  // Now do the CURL request to POST the CSR and get the new certificate.

  const http = new Http();

  const tlsClientCert = new Cert();
  try {
    tlsClientCert.loadFromFile('data/myTlsClientCert.pem');
  } catch {
    console.log(tlsClientCert.lastErrorText);
    return;
  }

  const bdTlsClientCertPrivKey = new BinData();
  try {
    bdTlsClientCertPrivKey.loadFile('data/myTlsClientCert.key.pem');
  } catch {
    console.log('Failed to load data/myTlsClientCert.key.pem');
    return;
  }

  const tlsClientCertPrivKey = new PrivateKey();
  try {
    tlsClientCertPrivKey.loadAnyFormat(bdTlsClientCertPrivKey, '');
  } catch {
    console.log(tlsClientCertPrivKey.lastErrorText);
    return;
  }

  try {
    tlsClientCert.setPrivateKey(tlsClientCertPrivKey);
  } catch {
    console.log(tlsClientCert.lastErrorText);
    return;
  }

  http.setSslClientCert(tlsClientCert);

  http.requireSslCertVerify = true;

  // The body of the HTTP request contains the binary CSR.
  const resp = new HttpResponse();
  const url = 'https://clientauth.demo.one.digicert.com/.well-known/est/IOT/simplereenroll';
  try {
    await http.httpBdAsync('POST', url, bdCsr, 'application/pkcs10', resp);
  } catch {
    console.log(http.lastErrorText);
    return;
  }

  if (resp.statusCode !== 200) {
    console.log(`response status code = ${resp.statusCode}`);
    console.log(resp.bodyStr);
    console.log('Failed');
    return;
  }

  // The response is the Base64 DER of the new certificate.
  const myNewCert = new Cert();
  try {
    myNewCert.loadFromBase64(resp.bodyStr);
  } catch {
    console.log(myNewCert.lastErrorText);
    console.log(`Cert data = ${resp.bodyStr}`);
    console.log('Failed.');
    return;
  }

  try {
    myNewCert.saveToFile('c:/temp/qa_output/myNewCert.cer');
  } catch {
    console.log(myNewCert.lastErrorText);
    console.log('Failed.');
    return;
  }

  console.log('Success.');
}