SSL Pinning with Volley network library on Android
I want to use SSL Pinning in volley network library. Is there any way to implement SSL pinning with volley? Does volley provide this support for security improvements?
Solution 1:
I just implemented it like described here: http://blog.ostorlab.co/2016/05/ssl-pinning-in-android-networking.html
Here is the needed code for a volley-implementation:
CertificateFactory cf = CertificateFactory.getInstance("X.509");
// Generate the certificate using the certificate file under res/raw/cert.cer
InputStream caInput = new BufferedInputStream(getResources().openRawResource(R.raw.cert));
Certificate ca = cf.generateCertificate(caInput);
caInput.close();
// Create a KeyStore containing our trusted CAs
String keyStoreType = KeyStore.getDefaultType();
KeyStore trusted = KeyStore.getInstance(keyStoreType);
trusted.load(null, null);
trusted.setCertificateEntry("ca", ca);
// Create a TrustManager that trusts the CAs in our KeyStore
String tmfAlgorithm = TrustManagerFactory.getDefaultAlgorithm();
TrustManagerFactory tmf = TrustManagerFactory.getInstance(tmfAlgorithm);
tmf.init(trusted);
// Create an SSLContext that uses our TrustManager
SSLContext context = SSLContext.getInstance("TLS");
context.init(null, tmf.getTrustManagers(), null);
SSLSocketFactory sf = context.getSocketFactory();
mRequestQueue = Volley.newRequestQueue(mCtx.getApplicationContext(), new HurlStack(null, sf));
Seems to work!
Solution 2:
I just looked into the same thing for a project I am working on. The position I am in may be different to you however.
I am using Volley with an OKHttp Network stack (https://gist.github.com/JakeWharton/5616899):
Add these to your Gradle Build:1
compile "com.squareup.okhttp:okhttp:2.7.5"
compile "com.squareup.okhttp:okhttp-urlconnection:2.7.5"
Add a OKHttpStack class;
public class OKHttpStack extends HurlStack {
private final OkUrlFactory okUrlFactory;
public OKHttpStack() {
this(new OkUrlFactory(
new OkHttpClient.Builder()
.certificatePinner(
new CertificatePinner.Builder()
.add("example.com", "sha256/afwiKY3RxoMmLkuRW1l7QsPZTJPwDS2pdDROQjXw8ig=") //This is the cert
.build())
.build();
));
}
public OKHttpStack(OkUrlFactory okUrlFactory) {
if (okUrlFactory == null) {
throw new NullPointerException("Client must not be null.");
}
this.okUrlFactory = okUrlFactory;
}
@Override
protected HttpURLConnection createConnection(URL url) throws IOException {
return okUrlFactory.open(url);
}
}
When you then create your RequestQueue do something like:
Network network = new BasicNetwork(new OKHttpStack());
File cacheDir = new File(context.getCacheDir(), "volley");
int threads = 4;
mRequestQueue = new RequestQueue(new DiskBasedCache(cacheDir), network, threads);
Please note I have yet to test this, we are thinking about pinning at the moment.
Good luck! Gav
References:
https://gist.github.com/JakeWharton/5616899 https://github.com/square/okhttp/blob/master/samples/guide/src/main/java/okhttp3/recipes/CertificatePinning.java
Solution 3:
You can use public key pinning instead of certificate pinning:
Public Key Pinning with Volley Library