The signature is already in the document. Losing the phone doesn't erase it.
En Perú, el organismo nacional de identidad ha abierto una vía silenciosa pero significativa para que cualquier ciudadano autentique documentos legales desde donde se encuentre, usando el DNI electrónico como llave digital. A través de una guía oficial publicada por Reniec, el Estado reconoce que la firma manuscrita puede ser reemplazada —con plena validez jurídica— por un chip, un PIN y, en muchos casos, solo un teléfono. Es un paso pequeño en apariencia, pero que redefine la relación entre el ciudadano y la burocracia: la institución ya no exige presencia física, sino autenticidad verificable.
- Millones de peruanos han cargado durante años un documento de identidad con capacidades digitales que nunca pudieron usar, por desconocimiento o por falta de equipos.
- La publicación de la guía oficial de Reniec rompe ese silencio y convierte al DNI electrónico en una herramienta activa para firmar contratos, trámites y formularios gubernamentales con el mismo peso legal que una firma de puño y letra.
- El riesgo latente está en la cadena de descarga: Reniec advierte que los controladores del lector deben obtenerse exclusivamente desde su portal oficial, ya que una instalación desde fuentes no verificadas podría comprometer toda la seguridad del sistema.
- La irrupción del método móvil —demostrado en TikTok y adoptado en ciudades como Chiclayo— democratiza aún más el acceso: con NFC y la app Certesia, firmar un PDF legal ya no requiere hardware adicional, solo un smartphone.
- El proceso avanza hacia una normalización donde el ciudadano elige su método —lector de tarjetas o teléfono— sin perder validez jurídica, reduciendo la dependencia histórica de las visitas presenciales a oficinas del Estado.
El Registro Nacional de Identificación y Estado Civil del Perú —Reniec— publicó una guía oficial para que los ciudadanos puedan firmar documentos legales usando su DNI electrónico, sin necesidad de acudir a ninguna oficina. La firma digital así obtenida tiene el mismo valor jurídico que una firma manuscrita, y puede aplicarse a contratos, formularios gubernamentales y cualquier trámite que lo requiera.
El método tradicional exige un lector de tarjetas inteligentes compatible con Windows 10 u 11, y la instalación del controlador correspondiente, que debe descargarse únicamente desde el portal oficial identidad.reniec.gob.pe. Reniec es enfático en este punto: la seguridad del sistema depende de que el software provenga exclusivamente de fuentes oficiales. Una vez instalado el controlador y conectado el lector, el proceso de firma es sencillo: se accede a la plataforma correspondiente, se selecciona el certificado digital y se ingresa el PIN de seis dígitos. El documento queda autenticado de forma inmediata.
Para quienes no disponen de un lector de tarjetas, existe una alternativa igualmente válida. Un economista llamado Lucas Becros popularizó en TikTok un método basado en teléfonos con tecnología NFC y la aplicación Certesia. El procedimiento es aún más directo: se carga el PDF, se indica dónde debe aparecer la firma, se ingresa la contraseña del DNI y se acerca la tarjeta al teléfono. El chip transmite la información, la firma queda embebida en el documento y puede guardarse o compartirse desde el celular.
Lo que hace relevante este avance es la reducción de barreras. La mayoría de los peruanos ya cuenta con teléfonos NFC, y el obstáculo para acceder a la firma digital ha pasado de requerir hardware especializado a simplemente descargar una aplicación. En un país donde los trámites han exigido históricamente presencia física, la posibilidad de firmar documentos desde cualquier lugar —con lector o con teléfono— representa un cambio concreto en la forma en que los ciudadanos se relacionan con el Estado.
Peru's national identity registry has quietly made it possible for any citizen to sign legal documents without leaving their desk. The Reniec—the Registro Nacional de Identificación y Estado Civil—published an official guide explaining how to use the electronic DNI, the country's smart card identity document, to authenticate everything from contracts to government filings with the same legal weight as a handwritten signature.
The traditional method requires a few pieces of hardware and patience. You need a valid electronic DNI, a smart card reader compatible with Windows 10 or 11, and the correct driver software. The driver is the critical piece: Reniec insists it must come from their official portal at identidad.reniec.gob.pe, nowhere else. The path is specific. You navigate to the DNI electrónico section, find "Acerca de," then "Usos de DNI electrónico," then "Descargas." There you'll find drivers organized by DNI version. If you have the newer 3.0 version, you'll need to locate the CAN number printed on the bottom of your card—a requirement unique to that edition. Older versions don't ask for it.
Once the driver is installed and the card reader is plugged in, the signing itself is straightforward. You go to an official platform—the Comptroller General's office website, for instance—fill out your form, click "Firmar digitalmente," select your certificate, and enter your six-digit PIN. The system processes it. A confirmation appears. The document now carries full legal standing. Reniec's guidance is firm on one point: do this only through official channels. The security of the entire system depends on it.
But not everyone has a card reader sitting around, and not everyone wants to buy one. An economist named Lucas Becros demonstrated an alternative on TikTok that has gained traction, particularly in cities like Chiclayo. His method uses nothing but a smartphone with NFC capability—near-field communication, the same technology that lets you tap your phone to pay—and an app called Certesia. The process is simpler than the desktop version. You install Certesia, open it, select "Firma personal," and upload the PDF you want to sign. You mark where on the page the signature should appear. The app asks for your DNI password. Then you hold your electronic card near the phone's NFC reader. The chip communicates with the device. The signature is embedded in the document. You can save it, share it, store it—all from your phone, with the same legal validity as the computer-based version.
What makes this shift significant is that it removes friction from a process that, until recently, required specific hardware and technical setup. Most Peruvians now carry phones with NFC built in. The barrier to digital authentication has dropped from "you need to own a card reader" to "you need to download an app." For a country where administrative processes have historically demanded in-person visits to government offices, the ability to sign documents from anywhere—whether at a desk with a reader or standing in line with a phone—represents a quiet but meaningful change in how citizens interact with institutions. The legal standing is identical either way. The choice of method is now theirs.
Citações Notáveis
Do this only through official channels. The security of the entire system depends on it.— Reniec guidance on digital signature procedures
A Conversa do Hearth Outra perspectiva sobre a história
Why does Reniec insist the driver come only from their official website? Couldn't you just download it from anywhere?
Because the driver is the bridge between your card and your computer. If someone tampered with it, they could intercept your PIN, your signature, your identity. The whole system collapses if that link is compromised. That's why they're so strict about the source.
And the NFC version—is it actually as secure as the card reader method?
It's different, not weaker. NFC has its own encryption. The phone reads the chip, the app validates your password, and the signature gets embedded. It's been tested and certified. The legal weight is identical.
Why would someone choose the desktop version over the phone version, then?
Habit, mostly. Some people don't trust their phones with sensitive documents. Some work in offices where they already have the hardware set up. Some are older and more comfortable with a computer. But technically? The phone is faster and you don't need to buy anything.
What happens if you lose your phone after signing something?
The signature is already in the document. Losing the phone doesn't erase it or invalidate it. It's like losing the pen after you've signed a paper check—the check is still good.
Does Reniec expect most people to use one method or the other?
They're not pushing either way. They published the guide for the traditional method because that's what existed first. The NFC method came from outside—an economist showing people a faster way. Reniec didn't create Certesia. They just didn't stop it, because it works and it's legal.