am fc7e851f: Merge "Add getmtime to Android KeyStore API" into jb-mr1-dev (88ba79b5) · Commits · e / os / android_frameworks_base

keystore/java/android/security/KeyStore.java

+18 −0

Original line number	Diff line number	Diff line
		@@ -26,6 +26,7 @@ import java.io.UTFDataFormatException;
		import java.nio.charset.Charsets;
		import java.nio.charset.ModifiedUtf8;
		import java.util.ArrayList;
		import java.util.Date;

		/**
		* @hide This should not be made public in its present form because it
		@@ -228,6 +229,23 @@ public class KeyStore {
		return ungrant(getKeyBytes(key), getUidBytes(uid));
		}

		private long getmtime(byte[] key) {
		final ArrayList<byte[]> values = execute('c', key);
		if (values == null \|\| values.isEmpty()) {
		return -1L;
		}

		return Long.parseLong(new String(values.get(0))) * 1000L;
		}

		/**
		* Returns the last modification time of the key in milliseconds since the
		* epoch. Will return -1L if the key could not be found or other error.
		*/
		public long getmtime(String key) {
		return getmtime(getKeyBytes(key));
		}

		public int getLastError() {
		return mError;
		}

keystore/tests/src/android/security/KeyStoreTest.java

+50 −0

Original line number	Diff line number	Diff line
		@@ -19,9 +19,11 @@ package android.security;
		import android.app.Activity;
		import android.security.KeyStore;
		import android.test.ActivityUnitTestCase;
		import android.test.AssertionFailedError;
		import android.test.suitebuilder.annotation.MediumTest;
		import java.nio.charset.Charsets;
		import java.util.Arrays;
		import java.util.Date;
		import java.util.HashSet;

		/**
		@@ -403,4 +405,52 @@ public class KeyStoreTest extends ActivityUnitTestCase<Activity> {
		assertFalse("Should fail to ungrant key to other user second time",
		mKeyStore.ungrant(TEST_KEYNAME, 0));
		}

		/**
		* The amount of time to allow before and after expected time for variance
		* in timing tests.
		*/
		private static final long SLOP_TIME_MILLIS = 15000L;

		public void testGetmtime_Success() throws Exception {
		assertTrue("Password should work for keystore",
		mKeyStore.password(TEST_PASSWD));

		assertTrue("Should be able to import key when unlocked",
		mKeyStore.importKey(TEST_KEYNAME, PRIVKEY_BYTES));

		long now = System.currentTimeMillis();
		long actual = mKeyStore.getmtime(TEST_KEYNAME);

		long expectedAfter = now - SLOP_TIME_MILLIS;
		long expectedBefore = now + SLOP_TIME_MILLIS;

		assertLessThan("Time should be close to current time", expectedBefore, actual);
		assertGreaterThan("Time should be close to current time", expectedAfter, actual);
		}

		private static void assertLessThan(String explanation, long expectedBefore, long actual) {
		if (actual >= expectedBefore) {
		throw new AssertionFailedError(explanation + ": actual=" + actual
		+ ", expected before: " + expectedBefore);
		}
		}

		private static void assertGreaterThan(String explanation, long expectedAfter, long actual) {
		if (actual <= expectedAfter) {
		throw new AssertionFailedError(explanation + ": actual=" + actual
		+ ", expected after: " + expectedAfter);
		}
		}

		public void testGetmtime_NonExist_Failure() throws Exception {
		assertTrue("Password should work for keystore",
		mKeyStore.password(TEST_PASSWD));

		assertTrue("Should be able to import key when unlocked",
		mKeyStore.importKey(TEST_KEYNAME, PRIVKEY_BYTES));

		assertEquals("-1 should be returned for non-existent key",
		-1L, mKeyStore.getmtime(TEST_KEYNAME2));
		}
		}