Update verifyEd25519Signature() unit test: add a test to detect a key length too small

- add logs in verifyEd25519SignatureJni() to print the key used

1 files changed, 7 insertions, 1 deletions

diff --git a/java/android/OlmLibSdk/olm-sdk/src/androidTest/java/org/matrix/olm/OlmUtilityTest.java b/java/android/OlmLibSdk/olm-sdk/src/androidTest/java/org/matrix/olm/OlmUtilityTest.java
index e483d71..d4c3382 100644
--- a/java/android/OlmLibSdk/olm-sdk/src/androidTest/java/org/matrix/olm/OlmUtilityTest.java
+++ b/java/android/OlmLibSdk/olm-sdk/src/androidTest/java/org/matrix/olm/OlmUtilityTest.java
@@ -86,12 +86,18 @@ public class OlmUtilityTest {
         assertTrue(isVerified);
         assertTrue(String.valueOf(errorMsg).isEmpty());
 
-        // check a bad signature is detected and the error message is not empty
+        // check a bad signature is detected => errorMsg = BAD_MESSAGE_MAC
         String badSignature = "Bad signature Bad signature Bad signature..";
         isVerified = utility.verifyEd25519Signature(badSignature, fingerPrintKey, message, errorMsg);
         assertFalse(isVerified);
         assertFalse(String.valueOf(errorMsg).isEmpty());
 
+        // check bad fingerprint size => errorMsg = INVALID_BASE64
+        String badSizeFingerPrintKey = fingerPrintKey.substring(fingerPrintKey.length()/2);
+        isVerified = utility.verifyEd25519Signature(messageSignature, badSizeFingerPrintKey, message, errorMsg);
+        assertFalse(isVerified);
+        assertFalse(String.valueOf(errorMsg).isEmpty());
+
         utility.releaseUtility();
         account.releaseAccount();
     }