Fuente: Listín Diario

30 de diciembre 2009

Medidas. Si detectan problemas, como obligarían a todos los operadores de telefonica a actualizar sus sistemas de seguridad.

Barcelona.- Era raro que todavía no hubiese sucedido. El ingeniero informático alemán Karsten Nohl ha descifrado el algoritmo utilizado para cifrar las comunicaciones del estándar GSM (Sistema Global para las Comunicaciones Móviles).

El anuncio fue realizado por Nohl ante 600 personas en la conferencia Chaos Communication Congress, la reunión más importante de los hackers europeos celebrada en Berlín, para demostrar que “la seguridad de GSM es insuficiente”.

Su objetivo: “que las operadoras adopten mayores medidas de seguridad en telefonía móvil”, según recoge The New York Times.

Nohl ha publicado el código en Internet para denunciar y alertar de la vulnerabilidad del sistema y la pérdida de eficacia del algoritmo que protege las comunicaciones GSM, desarrollado en 1988 y que todavía se utiliza para proteger la privacidad del 80% de las llamadas de móviles en el mundo.

La Asociación GSM considera el crackeo ilegal, resta importancia al anuncio y acusa al ingeniero de “exagerar la amenaza de seguridad”. Según la portavoz de la asociación, Claire Cranton “es teóricamente posible, pero prácticamente improbable”. Nohl no es un desconocido.

Doctor en ingeniería informática por la Universidad de Virginia (Estados Unidos), es experto en encriptación. Técnicamente conocido como A5/1, se trata de un código binario.

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