List configured JCE/JCA Providers in Java Runtime (Security)

Problem Statement (Java Security):

Print or list all Java Cryptography Extension (JCE)/Java Cryptography Architecture (JCA) providers configured in Java Runtime.

How to check providers enabled in Java Runtime?

1. Navigate to “<Java Installation>/jre/lib/security/” (Linux) and “<Java Installation>\jre\lib\security\” (Windows).
2. Open java.security file and we can have a look at registered providers.
3. We can find registered providers as follows and it may vary depending upon Java version:

#
# List of providers and their preference orders:
#
security.provider.1=sun.security.provider.Sun
security.provider.2=sun.security.rsa.SunRsaSign
security.provider.3=sun.security.ec.SunEC
security.provider.4=com.sun.net.ssl.internal.ssl.Provider
security.provider.5=com.sun.crypto.provider.SunJCE
security.provider.6=sun.security.jgss.SunProvider
security.provider.7=com.sun.security.sasl.Provider
security.provider.8=org.jcp.xml.dsig.internal.dom.XMLDSigRI
security.provider.9=sun.security.smartcardio.SunPCSC
security.provider.10=sun.security.mscapi.SunMSCAPI
security.provider.11=org.bouncycastle.jce.provider.BouncyCastleProvider

Program – list of security providers in Java Runtime:

• JDK “java.security.Security” class to get list of register providers.

• There are 11 providers configured in our java runtime (as shown above).
• We will observe the output of below program, wherein we will get list of 11 providers and their corresponding version.

package org.learn;

import java.security.Provider;
import java.security.Security;
import java.util.Arrays;
import java.util.concurrent.atomic.AtomicInteger;

public class ListProviders {
    public static void main(String[] args) {

        Provider[] providers = Security.getProviders();
        AtomicInteger atomicInteger = new AtomicInteger(1);
        Arrays.stream(providers)
                .map(provider ->
                        String.format("%d. Name: %s and Version: %s",
                                atomicInteger.getAndIncrement(),
                                provider.getName(),
                                provider.getVersion()))
                .forEach(System.out::println);
    }
}

Output: List of JCA/JCE providers in Java Runtime

1. Name: SUN and Version: 1.8
2. Name: SunRsaSign and Version: 1.8
3. Name: SunEC and Version: 1.8
4. Name: SunJSSE and Version: 1.8
5. Name: SunJCE and Version: 1.8
6. Name: SunJGSS and Version: 1.8
7. Name: SunSASL and Version: 1.8
8. Name: XMLDSig and Version: 1.8
9. Name: SunPCSC and Version: 1.8
10. Name: SunMSCAPI and Version: 1.8
11. Name: BC and Version: 1.65