Java Language
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Java Language Secure objects SignedObject (java.security.SignedObject)
Example
SignedObject is a class for the purpose of creating authentic runtime objects whose integrity cannot be compromised without being detected.
More specifically, a SignedObject contains another Serializable object, the (to-be-)signed object and its signature.
//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());
