Introduction

So, what are JKS and PFX files and why would we want to convert PFX to JKS?

If you're working in Java then the JKS (Java Key Store) is a logically expected place to store private keys. Java applications typically expect to get the keys from JKS, since Java offers ways for easy JKS management. JKS is not easily accessible from outside Java, though.

PFX (PKCS#12) files, on the other hand, are not language-dependent way to store encrypted private keys and certificates, and it has been around long enough so it's widely supported.

How to convert pfx to jks?

Direct conversion of pfx to jks is not possible, but from JAVA version 6, we can import PKCS certificate into Java keystore.

1. First, we need to create an empty keystore.

Open command window and type:

keytool -genkey -alias foo -keystore testKeystore.jks

If you already have keystore, you can skip step 1.

Step 1. Create keystore with private key in it.

keytool -genkey -alias server -keyalg RSA -keysize 2048 -keystore keystore.jks -dname "CN=p1, O=o1, L=Belgrade, ST=, C=RS"

If you have map defined as for example HashMap:

Map<String, String> map = new HashMap<String, String>();

You can iterate through it using for loop on following way:

String.split() accepts a regular expression, so if you want to split by special character you need to escape . for it not to be considered as a regex meta character. For example, if you have the filename as:

SomeFile.jpg, to get its extension you’ll need to: