Page 333 - Invited Paper Session (IPS) - Volume 2

IPS271 Edgar Vielma Orozco et al.
data, the security schemes from the access to the computer tools, the
encryption of the information in the MD and during its transfer, until its
integration in the centralized database. The modules for the generation of
progress and control reports were also improved and the problems related to
the use of the digital camera of the MD for the reading of QR (Quick Response)
codes and the use of the GPS for the registration of the GPS coordinates were
solved.

5. Technological Architecture and information security
In the Census 2020 tests, a strategy has been implemented for the transfer
of information in which tools are used for the generation of packed files with
security passwords, and in their interior, with the databases encrypted with the
algorithm of the AES256 method (Advanced Encryption Standard with 256-bit
keys). These encrypted data packages are sent through the Information
Integration Module of the OPERA System, which is hosted on a secure
institutional website, subsequently deposited in mass storage servers and
finally they are integrated to the central database server.
The services of telecommunications, institutional network and servers of
applications, databases and mass storage within the institutional network are
provided by the computer infrastructure areas, who are in charge of keeping
them available. The service availability scheme is configured through a load
balancer of requests, through the OPERA web domain, which equally
distributes each processing request between the application servers and
available databases. In addition, a series of security standards and service
availability tests allow planned stability throughout the whole process. For the
development of Web systems, Visual Studio .NET is used, which is a complete
set of tools for the generation of this type of applications; the AngularJS
development framework is also used, since it provides techniques for the
creation of SPA applications (Single Page Application), which benefits the
performance by making requests to the application server are lighter by only
requiring specific parts of the page. On the other hand, the use of JWT (JSON
Web Token) implements a more secure communication and facilitates the
administration of users, assigning roles and permissions. Oracle 12c is used to
manage the database, providing greater security and availability of
information.

6. Main technological innovations
The innovations for the realization of the 2020 Census consist on the use
of mobile devices in the data collection and training; the possibility that the
population can self-enumerate via the Internet or through a telephone-
assisted interview; the use of QR codes; as well as the capture of the GPS
coordinates during the routes of the work areas by the personnel.

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