Data access control system and method thereof

   
   

A data access control system and a method thereof is disclosed. First, the master key is divided into n subkeys to be kept by n holders, by way of secret sharing. The master key reconstruction procedure utilizes the shared secret with the subkey holders to obtain m subkeys (1 Se divulga un sistema de control de acceso de los datos y un método de eso. Primero, la llave principal se divide en los subkeys de n que se guardarán por los sostenedores de n, por compartir secreto. El procedimiento de la reconstrucción de la llave principal utiliza el secreto compartido con los sostenedores del subkey para obtener los subkeys de m (1

 
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