}

    // Validates equals() returns true for same-sized, equal-content blobs
    @Test
    @DisplayName("equals: identical content and size -> true")
    void equals_identicalContent_true() {
        // Arrange
        byte[] a = new byte[] { 1, 2, 3 };
        byte[] b = new byte[] { 1, 2, 3 };
        SecurityBlob left = new SecurityBlob(a);
        SecurityBlob right = new SecurityBlob(b);