diff --git a/native/cpp/CommonCpp/CryptoTools/CryptoModule.cpp b/native/cpp/CommonCpp/CryptoTools/CryptoModule.cpp
--- a/native/cpp/CommonCpp/CryptoTools/CryptoModule.cpp
+++ b/native/cpp/CommonCpp/CryptoTools/CryptoModule.cpp
@@ -225,10 +225,6 @@
           persist.account.size())) {
     throw std::runtime_error{"error restoreFromB64 => ::olm_unpickle_account"};
   }
-  if (persist.account.size() != ::olm_pickle_account_length(this->account)) {
-    throw std::runtime_error{
-        "error restoreFromB64 => ::olm_pickle_account_length"};
-  }
 
   std::unordered_map<std::string, OlmBuffer>::iterator it;
   for (it = persist.sessions.begin(); it != persist.sessions.end(); ++it) {
diff --git a/native/cpp/CommonCpp/CryptoTools/Session.cpp b/native/cpp/CommonCpp/CryptoTools/Session.cpp
--- a/native/cpp/CommonCpp/CryptoTools/Session.cpp
+++ b/native/cpp/CommonCpp/CryptoTools/Session.cpp
@@ -94,10 +94,6 @@
           b64.size())) {
     throw std::runtime_error("error pickleSession => ::olm_unpickle_session");
   }
-  if (b64.size() != ::olm_pickle_session_length(session->olmSession)) {
-    throw std::runtime_error(
-        "error pickleSession => ::olm_pickle_session_length");
-  }
   return session;
 }