#node-openssl-verify-cert

Verify a certificate against a trusted CA bundle.

This package utilizes OpenSSL library, rather than spawning a child process like many of other packages.

Installation

Linux

$ npm install node-openssl-verify-cert

Mac

On macOS 10.12 sierra, openssl must be install via brew. The default location of openssl is /usr/local/opt/openssl.

$ brew install openssl
$ npm install node-openssl-verify-cert

Windows

According to https://github.com/nodejs/node-gyp/wiki/Linking-to-OpenSSL, you should have OpenSSL for Windows installed in advanced. It can be downloaded at http://slproweb.com/products/Win32OpenSSL.html. Make sure you have installed the full version which contains development libraries.

\> npm install node-openssl-verify-cert --openssl_root="C:/OpenSSL-Win64 (where openssl is installed)"

Usage

verifyCert(cert,ca,callback);

• cert: The certificate to verify in pem format, as a string.
• ca: The trusted ca bundle in pem format
• callback: A callback function with 2 arguments, e.g. function(err,result){}. If callback is null or undefined, the function returns a promise;
  • err: null if verification succeeded; the reason in string if verification failed.
  • result: return 1 if verification succeeded, 0 if verification failed, and -1 if there is no certificates in cert.

more examples, see unit tests.

Using callback

var fs = require("fs"),
    verifier = require("node-openssl-verify-cert");

var ca = fs.readFileSync("ca.crt"),
    cert = fs.readFileSync("certToVerify.crt");

verifier.verifyCert(cert,ca,function(err,result){
    if(err) {
        console.log("Verification failed. Reason:",err);
    } else {
        console.log("Success!");
    }
});

Using promise

verifier.verifyCert(cert,ca)
    .then(function(result){
        console.log("Success!");
    },function(err){
        console.log("Verification failed. Reason:",err);
    });

Using generator function

var co = require("co");
co(function* (){
    yield verifier.verifyCert(cert1,ca);
    yield verifier.verifyCert(cert2,ca);
    yield verifier.verifyCert(cert3,ca);
})
.catch(function(err){
    console.log("Verification failed. Reason:",err);
})