private RSAPublicKey getKey() {
try {
if (key == null) {
KeyFactory keyFactory = KeyFactory.getInstance("RSA");
key =
(RSAPublicKey)
keyFactory.generatePublic(new X509EncodedKeySpec(Util.fromHexString(keyImage)));
}
return key;
} catch (GeneralSecurityException e) {
throw new Error(e); // impossible
}
}
