Certificate Authority options configuring certificates based on Privacy-enhanced Electronic Email (PEM) files. The options is configured with a list of validating certificates.

Validating certificates must contain X.509 certificates wrapped in a PEM block:

 -----BEGIN CERTIFICATE-----
 MIIDezCCAmOgAwIBAgIEVmLkwTANBgkqhkiG9w0BAQsFADBuMRAwDgYDVQQGEwdV
 ...
 z5+DuODBJUQst141Jmgq8bS543IU/5apcKQeGNxEyQ==
 -----END CERTIFICATE-----
 

The certificates can either be loaded by Vert.x from the filesystem:

 HttpServerOptions options = new HttpServerOptions();
 options.setPemTrustOptions(new PemTrustOptions().addCertPath("/cert.pem"));
 

Or directly provided as a buffer:

 Buffer cert = vertx.fileSystem().readFileSync("/cert.pem");
 HttpServerOptions options = new HttpServerOptions();
 options.setPemTrustOptions(new PemTrustOptions().addCertValue(cert));