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add test case to make sure s2k IVs are different per subkey

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This commit is contained in:
Vincent Breitmoser 2014-09-23 14:53:44 +02:00
parent 9d9d71f3db
commit 675e8e2015
1 changed files with 19 additions and 0 deletions
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19
OpenKeychain-Test/src/test/java/org/sufficientlysecure/keychain/pgp/PgpKeyOperationTest.java
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@ -54,9 +54,11 @@ import org.sufficientlysecure.keychain.util.TestingUtils;
import java.io.ByteArrayInputStream;
import java.io.IOException;
import java.nio.ByteBuffer;
import java.security.Security;
import java.util.ArrayList;
import java.util.Date;
import java.util.HashSet;
import java.util.Iterator;
import java.util.List;
import java.util.Random;
@ -924,6 +926,23 @@ public class PgpKeyOperationTest {
parcel.mNewPassphrase = otherPassphrase;
modified = applyModificationWithChecks(parcel, modified, onlyA, onlyB, "");
Assert.assertEquals("exactly three packets should have been modified (the secret keys)",
3, onlyB.size());
{ // quick check to make sure no two secret keys have the same IV
HashSet<ByteBuffer> ivs = new HashSet<ByteBuffer>();
for (int i = 0; i < 3; i++) {
SecretKeyPacket p = (SecretKeyPacket) new BCPGInputStream(
new ByteArrayInputStream(onlyB.get(i).buf)).readPacket();
ByteBuffer iv = ByteBuffer.wrap(p.getIV());
Assert.assertFalse(
"no two secret keys should have the same s2k iv (slightly non-deterministic!)",
ivs.contains(iv)
);
ivs.add(iv);
}
}
RawPacket sKeyWithPassphrase = onlyB.get(1);
Assert.assertEquals("extracted packet should be a secret subkey",
PacketTags.SECRET_SUBKEY, sKeyNoPassphrase.tag);