Decrypt a JWE into BinData

See more JSON Web Encryption (JWE) Examples

Demonstrates Jwe.DecryptBd, which decrypts a recipient of a loaded JWE and writes the plaintext bytes into a BinData.

import com.chilkatsoft.chilkat2.BinData;
import com.chilkatsoft.chilkat2.ChilkatException;
import com.chilkatsoft.chilkat2.Jwe;

public class ChilkatExample {

    public static void main(String[] args) {
        Jwe jwe = new Jwe();

        // Load the JWE compact serialization to be decrypted.
        String jweCompact = "eyJhbGciOiJBMjU2S1ciLCJlbmMiOiJBMjU2R0NNIn0.<...>.<iv>.<ciphertext>.<tag>";
        try {
            jwe.loadJwe(jweCompact);
        } catch (ChilkatException e) {
            System.out.println(e.getLastErrorText());
            return;
        }

        // The 256-bit key-wrapping key (base64) for recipient index 0.  In production, obtain the key
        // from a secure source rather than hard-coding it.
        String base64Key = "YWJjZGVmZ2hpamtsbW5vcHFyc3R1dnd4eXowMTIzNDU=";
        try {
            jwe.setWrappingKey(0, base64Key, "base64");
        } catch (ChilkatException e) {
            System.out.println(e.getLastErrorText());
            return;
        }

        // Decrypt recipient index 0, writing the plaintext bytes into a BinData.
        BinData bd = new BinData();
        try {
            jwe.decryptBd(0, bd);
        } catch (ChilkatException e) {
            System.out.println(e.getLastErrorText());
            return;
        }

        System.out.println("Decrypted " + bd.getNumBytes() + " bytes.");
    }
}