Implement secure key via KDF for transparent data encryption/decryption #60

support/src/utils/encrypting_reader.cpp

@@ -546,14 +546,13 @@ auto encrypting_reader::reader_function(char *buffer, size_t size,
                                         size_t nitems) -> size_t {
   REPERTORY_USES_FUNCTION_NAME();
 
-  std::span<char> dest(buffer, size);
-
   auto read_size =
       static_cast<std::uint64_t>(size) * static_cast<std::uint64_t>(nitems);
   if (read_size == 0U) {
     return 0U;
   }
 
+  std::span<char> dest(buffer, read_size);
   auto read_offset{read_offset_};
   std::size_t total_read{};
   auto total_size{total_size_};