Eid library

This library is created to get a simpel way to interact with the belgian eid middelware for nodejs.

$3

``bash
npm i --save eid-lib
`

Basic usage

`js
// beidpkcs11.dll is the name of the module aka the library you need to interact with
const CardReader = require("eid-lib");
const cardReader = new CardReader("beidpkcs11.dll");
try {
/**
* your code
*/
} catch (e) {
console.error(e);
} finally {
// needs to be call before ending program!!
cardReader.Finalize();
}
`

$3

`js
const CardReader = require("eid-lib");
const cardReader = new CardReader("beidpkcs11.dll");
try {
if(cardReader.HasCard()) {
const firstname = cardReader.GetFirstName();
} else {
console.log("No card detected")
}
} catch (e) {
console.error(e);
} finally {
// needs to be call before ending program!!
cardReader.Finalize();
}
`

$3

Every on the card is stored in files.

`js
const CardReader = require("eid-lib");
const cardReader = new CardReader("beidpkcs11.dll");
try {
const photoBuffer = cardReader.GetPhotoFile();
//photoBuffer will contain a Buffer of a png image of the image on the card
//you can write it to a file photo.png for example
} catch (e) {
console.error(e);
} finally {
// needs to be call before ending program!!
cardReader.Finalize();
}
`

$3

`js
const CardReader = require("eid-lib");
const cardReader = new CardReader("beidpkcs11.dll");
try {
const authPubKey = cardReader.GetCertificateAuthenticationFile();
//this is the public key of the authentication key it will return a der formated file
const pemCert = cardReader._derToPem(authPubKey);
//PemCert will contain a string that is the pem format of the der format.
} catch (e) {
console.error(e);
} finally {
// needs to be call before ending program!!
cardReader.Finalize();
}
`

$3

You can sign data with your cards private key and then verifing it with the public key.

`js
const Assert = require('assert').strict;
const CardReader = require("eid-lib");
const cardReader = new CardReader("beidpkcs11.dll");
try {
if(cardReader.HasCard()) {
// Sign
const testdata = Buffer.from(["0", "1", "2", "3", "4", "5", "6", "7", "8" ]);
// after calling this the middelware will ask you your pin code
let signeddata = cardReader.SignWithCard(testdata, "Authentication");

Assert.notStrictEqual(signeddata, null);
// Verification
Assert.strictEqual(cardReader.Verify(testdata, signeddata, cardReader.GetCertificateAuthenticationFile()), true);

// Sign and Verify a file on the card
const idFile = cardReader.GetIdFile();
const idSignatureFile = cardReader.GetIdSignatureFile();
const certificateRRN = cardReader.GetCertificateRNFile();
Assert.strictEqual(cardReader.Verify(idFile, idSignatureFile, certificateRRN), true);
} else {
console.log("No card detected")
}
} catch (e) {
console.error(e);
} finally {
cardReader.Finalize();
}
`

$3

You can encrypted data with your cards and then decrypte it.

`js
const CardReader = require("eid-lib");
const cardReader = new CardReader("beidpkcs11.dll");
try {
const testdata = Buffer.from(["0", "1", "2", "3", "4", "5", "6", "7", "8" ]);
if(cardReader.HasCard()) {
// after calling this the middelware will ask you your pin code
const data = cardReader.EncrypteData(testdata);
console.log(data);
console.log();
//output: ☺☻♥♦♣♠
console.log(cardReader.DecrypteData(data).toString());
} else {
console.log("No card detected");
}
} catch (e) {
console.error(e);
} finally {
cardReader.Finalize();
}
``