OpenPGP public key import in Java

Question

I trying to import a existint pgp public key:

But my public key always is getting null value. This public key is create with algoritm ecdsa,you can see the values used in this page: keyPropertes

This is my method to read the publicKey,it works if the algoritms to creaate the key is Rsa:

public static PGPPublicKey readPublicKey(InputStream in) throws IOException, PGPException {
        in = org.bouncycastle.openpgp.PGPUtil.getDecoderStream(in);

        PGPPublicKeyRingCollection pgpPub = new PGPPublicKeyRingCollection(in);

        //
        // we just loop through the collection till we find a key suitable for encryption, in the real
        // world you would probably want to be a bit smarter about this.
        //
        PGPPublicKey key = null;

        //
        // iterate through the key rings.
        //
        Iterator<PGPPublicKeyRing> rIt = pgpPub.getKeyRings();

        while (key == null && rIt.hasNext()) {
            PGPPublicKeyRing kRing = rIt.next();
            Iterator<PGPPublicKey> kIt = kRing.getPublicKeys();
            while (key == null && kIt.hasNext()) {
                PGPPublicKey k = kIt.next();

                if (k.isEncryptionKey()) {
                    key = k;
                }
            }
        }

        if (key == null) {
            throw new IllegalArgumentException("Can't find encryption key in key ring.");
        }

        return key;
    }

can you give me a big help with this?

Thanks in advance, best regards;)

Answer 1

Your code is looking for an encryption-capable key. All three keys in that keyblock are ECDSA (algorithm 19) which is only usable for signature verification, including 'certification' (key signing) and 'authorization' (SSH) both of which are actually kinds of signatures. If you truly want encryption you need an ECDH (algorithm 18) subkey. See https://tools.ietf.org/html/rfc6637#section-5 . If you truly want verification, you need to change your code.

OpenPGP public key import in Java

Question

1 answers

solution1
0 2020-05-30 05:59:37

OpenPGP public key import in Java

Question

1 answers

solution1 0 2020-05-30 05:59:37

solution1
0 2020-05-30 05:59:37