import javax.crypto.*;
import javax.crypto.spec.IvParameterSpec;
import javax.crypto.spec.SecretKeySpec;
import java.io.ByteArrayInputStream;
import java.io.IOException;
import java.io.InputStream;
import java.nio.file.Files;
import java.nio.file.Paths;
import java.security.*;
public class DecryptDbeaver {
// from the DBeaver source 8/23/19 https://github.com/dbeaver/dbeaver/blob/57cec8ddfdbbf311261ebd0c7f957fdcd80a085f/plugins/org.jkiss.dbeaver.model/src/org/jkiss/dbeaver/model/impl/app/DefaultSecureStorage.java#L31
private static final byte[] LOCAL_KEY_CACHE = new byte[] { -70, -69, 74, -97, 119, 74, -72, 83, -55, 108, 45, 101, 61, -2, 84, 74 };
static String decrypt(byte[] contents) throws InvalidAlgorithmParameterException, InvalidKeyException, IOException, NoSuchPaddingException, NoSuchAlgorithmException {
try (InputStream byteStream = new ByteArrayInputStream(contents)) {
byte[] fileIv = new byte[16];
byteStream.read(fileIv);
Cipher cipher = Cipher.getInstance("AES/CBC/PKCS5Padding");
SecretKey aes = new SecretKeySpec(LOCAL_KEY_CACHE, "AES");
cipher.init(Cipher.DECRYPT_MODE, aes, new IvParameterSpec(fileIv));
try (CipherInputStream cipherIn = new CipherInputStream(byteStream, cipher)) {
return inputStreamToString(cipherIn);
}
}
}
static String inputStreamToString(java.io.InputStream is) {
java.util.Scanner s = new java.util.Scanner(is).useDelimiter("\\A");
return s.hasNext() ? s.next() : "";
}
public static void main(String[] args) throws Exception {
if (args.length != 1) {
System.err.println("syntax: param1: full path to your credentials-config.json file");
System.exit(1);
}
System.out.println(decrypt(Files.readAllBytes(Paths.get(args[0]))));
}
}
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