SignedObject(java.security.SignedObject)

SignedObject 是一個用於建立真實執行時物件的類，其完整性在未被檢測到的情況下不會受到損害。

更具體地說，SignedObject 包含另一個 Serializable 物件，即（將）簽名物件及其簽名。

//Create a key
KeyPairGenerator keyGen = KeyPairGenerator.getInstance("DSA", "SUN");
SecureRandom random = SecureRandom.getInstance("SHA1PRNG", "SUN");
keyGen.initialize(1024, random);
// create a private key
PrivateKey signingKey = keyGen.generateKeyPair().getPrivate();
// create a Signature
Signature signingEngine = Signature.getInstance("DSA");
signingEngine.initSign(signingKey);
// create a simple object 
Serializable obj = new String("John");
// sign our object
SignedObject signedObject = new SignedObject(obj, signingKey, signingEngine);

System.out.println("signedObject-" + signedObject);
System.out.println("signedObject Data-" + signedObject.getObject());