Is there a good GnuPG encryption library for Java/Scala? [closed]

Answer 1

I recently had to work on GPG encryption-decryption and did find BountyCastle's PGP library does the trick. The steps were

1) Add the version in pom.xml properties

        1.46

2) Add the following dependencies

        
        
            org.bouncycastle
            bcmail-jdk15
            ${org.bouncycastle.version}
        
        
            org.bouncycastle
            bcpg-jdk15
            ${org.bouncycastle.version}
        
        
            org.bouncycastle
            bcprov-jdk15
            ${org.bouncycastle.version}
        

3) In the implementation class added the provider with Java Security

         Security.addProvider(new org.bouncycastle.jce.provider.BouncyCastleProvider());

4) The rest of the code was just simple Java implementation

    File encryptedFile = new File(encryptedFileName);
    byte[]  encryptedByteArray = FileUtils.readFileToByteArray(inputFile);      
    byte[] decryptedByteArray = ByteArrayHandler.decrypt(encryptedByteArray, passPhrase.toCharArray());
    String decryptedString = new String(decryptedByteArray);

I hope this helps.