PGP Encryption and Decryption using Apache Camel

In this example we will see how do to the file encryption and decryption using Apache Camel using pgp

1. Generate pgp keys

In order to do the encryption/decryption we required the pgp public and private keys, in this example we will use below portal to generate the keys. Once we created the files we need to place it in to our source resource folder

https://www.igolder.com/pgp/generate-key/

 

2. Create a maven project and add below dependencies

<properties>
        <camel.version>2.13.2</camel.version>
    </properties>
    <dependencies>
        <dependency>
            <groupId>org.apache.camel</groupId>
            <artifactId>camel-ftp</artifactId>
            <version>2.14.0</version>
        </dependency>
        <dependency>
            <groupId>org.apache.camel</groupId>
            <artifactId>camel-core</artifactId>
            <version>${camel.version}</version>
        </dependency>
        <dependency>
            <groupId>log4j</groupId>
            <artifactId>log4j</artifactId>
            <version>1.2.17</version>
        </dependency>
        <dependency>
            <groupId>org.apache.camel</groupId>
            <artifactId>camel-crypto</artifactId>
            <version>${camel.version}</version>

        </dependency>
        <dependency>
            <groupId>bouncycastle</groupId>
            <artifactId>bcpg-jdk13</artifactId>
            <version>121</version>
        </dependency>
        <dependency>
            <groupId>org.slf4j</groupId>
            <artifactId>slf4j-api</artifactId>
            <version>1.7.5</version>
        </dependency>
        <dependency>
            <groupId>org.slf4j</groupId>
            <artifactId>slf4j-log4j12</artifactId>
            <version>1.7.5</version>
        </dependency>
        <dependency>
            <groupId>log4j</groupId>
            <artifactId>log4j</artifactId>
            <version>1.2.17</version>
        </dependency>
    </dependencies>

3. Create a Camel Route to start encryption

 

package com.vinod.test;

import org.apache.camel.builder.RouteBuilder;
import org.apache.camel.converter.crypto.PGPDataFormat;
import org.apache.camel.main.Main;

public class EncryptionTest {

    /**
     * @param args
     * @throws Exception
     */
    public static void main(String[] args) throws Exception {
        Main main = new Main();
        main.enableHangupSupport();
        main.addRouteBuilder(new MyRouteBuilder());
        main.run(args);

    }

}

class MyRouteBuilder extends RouteBuilder {

    @Override
    public void configure() {

        try {
            System.out.println("My Encryption/Decryption route started");
            // Encryption
            PGPDataFormat encrypt = new PGPDataFormat();
            encrypt.setKeyFileName("vinodpublickeyfile.pgp");
            encrypt.setKeyUserid("vinod");

            from("file:tobeencrypt?noop=true;delete=true").marshal(encrypt).to("file:encrypted");

            // Decryption

            PGPDataFormat decrypt = new PGPDataFormat();
            decrypt.setKeyFileName("vinodprivatekeyfile.pgp");

            decrypt.setKeyUserid("vinod");
            decrypt.setPassword("vinod@123");

            from("file:tobedecrypt").unmarshal(decrypt).to("file:decrypted");
        } catch (Exception e) {
            e.printStackTrace();
        }
    }
}

5. Run the program

After running the above main program camel route will start and we can see the two directories are created and we can place the files which we needs to be encrypted.

Once we placed the file in to tobeencrypt directory Camel route will process that file and place in to encrypted directory after encryption

 

 

 

 

 

 

 

 

 

 

 

 

Download example

https://github.com/kkvinodkumaran/camel