Examples with PK11PubKey org.mozilla.jss.pkcs11.PK11PubKey used on opensource projects

Example 1 with PK11PubKey

use of org.mozilla.jss.pkcs11.PK11PubKey in project jss by dogtagpki.

the class JSSCipherSpi method engineGetKeySize.

@Override
public int engineGetKeySize(Key key) throws InvalidKeyException {
    if (key instanceof PK11PrivKey) {
        return ((PK11PrivKey) key).getStrength();
    } else if (key instanceof PK11PubKey) {
        try {
            byte[] encoded = ((PK11PubKey) key).getEncoded();
            SubjectPublicKeyInfo.Template spkiTemp = new SubjectPublicKeyInfo.Template();
            SubjectPublicKeyInfo spki = (SubjectPublicKeyInfo) ASN1Util.decode(spkiTemp, encoded);
            BIT_STRING pk = spki.getSubjectPublicKey();
            return pk.getBits().length - pk.getPadCount();
        } catch (InvalidBERException e) {
            throw new InvalidKeyException("Exception while decoding " + "public key: " + e.getMessage());
        }
    } else if (key instanceof SecretKeyFacade) {
        SymmetricKey symkey = ((SecretKeyFacade) key).key;
        return symkey.getLength();
    } else {
        key = importKey(key);
        SymmetricKey symkey = ((SecretKeyFacade) key).key;
        return symkey.getLength();
    }
}