Fix PEM reading issues and assert to catch generating corrupt keypairs

identitymanager.cpp

@@ -110,6 +110,10 @@ IdentityManager::IdentityManager(QDir directory)
     BIO_free(biokey);
     BIO_free(biocert);
 
+    // Ensure we can actually consume the keys we just wrote
+    assert(!QSslCertificate(m_CachedPemCert).isNull());
+    assert(!QSslKey(m_CachedPrivateKey, QSsl::Rsa).isNull());
+
     qDebug() << "Wrote new identity credentials to disk";
 }