@Test
public void testMultipleSecrets() throws Exception {
TestSignerSecretProvider secretProvider = new TestSignerSecretProvider();
Signer signer = new Signer(secretProvider);
secretProvider.setCurrentSecret("secretB");
String t1 = "test";
String s1 = signer.sign(t1);
String e1 = signer.verifyAndExtract(s1);
Assert.assertEquals(t1, e1);
secretProvider.setPreviousSecret("secretA");
String t2 = "test";
String s2 = signer.sign(t2);
String e2 = signer.verifyAndExtract(s2);
Assert.assertEquals(t2, e2);
Assert.assertEquals(s1, s2); // check is using current secret for signing
secretProvider.setCurrentSecret("secretC");
secretProvider.setPreviousSecret("secretB");
String t3 = "test";
String s3 = signer.sign(t3);
String e3 = signer.verifyAndExtract(s3);
Assert.assertEquals(t3, e3);
Assert.assertNotEquals(s1, s3); // check not using current secret for signing
String e1b = signer.verifyAndExtract(s1);
Assert.assertEquals(t1, e1b); // previous secret still valid
secretProvider.setCurrentSecret("secretD");
secretProvider.setPreviousSecret("secretC");
try {
signer.verifyAndExtract(s1); // previous secret no longer valid
Assert.fail();
} catch (SignerException ex) {
// Expected
}
}
@Test
public void testVerify() throws Exception {
Signer signer = new Signer(createStringSignerSecretProvider());
String t = "test";
String s = signer.sign(t);
String e = signer.verifyAndExtract(s);
Assert.assertEquals(t, e);
}
@Test
public void testInvalidSignedText() throws Exception {
Signer signer = new Signer(createStringSignerSecretProvider());
try {
signer.verifyAndExtract("test");
Assert.fail();
} catch (SignerException ex) {
// Expected
} catch (Throwable ex) {
Assert.fail();
}
}
@Test
public void testTampering() throws Exception {
Signer signer = new Signer(createStringSignerSecretProvider());
String t = "test";
String s = signer.sign(t);
s += "x";
try {
signer.verifyAndExtract(s);
Assert.fail();
} catch (SignerException ex) {
// Expected
} catch (Throwable ex) {
Assert.fail();
}
}