allow to use pem with passphrase about xml-crypto

[marklagendijk]

I stumbled on the same problem. Full example for the solution using forge:

var signedXml = new SignedXml();
signedXml.signingKey = readPrivateKeyFromProtectedPem('myPrivateKey.pem', 'myPassword');

function readPrivateKeyFromProtectedPem(path, passphrase){
    var pem = fs.readFileSync(path).toString();
    var privateKey = pki.decryptRsaPrivateKey(pem, passphrase);
    return pki.privateKeyToPem(privateKey);
}

[tngan]

Just for sharing, now I use this one digitalbazaar/forge to get the pem protected by a passphrase. They have an API pki.decryptRsaPrivateKey( file, passphrase ) to decrypt the pem.

[bjrmatos]

@tngan cool! i use forge in some of my apps to parse certificates.. we'll have forge in mind when find a solution, thnks

[chrisgh1]

has this changed in recent node versions? I'm getting the following error which looks like passphrase could be passed in? But I'm not familiar with how this module works.

crypto.js:283
var ret = this._handle.sign(toBuf(key), null, passphrase);

I'm on Node version 6.9.1

[cjbarth]

@yaronn , @tngan , would you be interested in creating a PR with a test suite to add that functionality to xml-crypto?