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Platform of time-stamping TS@

  • Start date Production:

    01/10/2009

    Functional description

    El servicio de sellado de tiempo permite emitir sellos de tiempo de los documentos electrónicos que los Organismos suministren al servicio. Un sello de tiempo es una firma electrónica realizada por una Autoridad de Sellado de Tiempo (TSA) que nos permite demostrar que los datos suministrados han existido y no han sido alterados desde un instante específico en el tiempo (proveniente de una fuente fiable de tiempo).

    The MINHAP has a TSA, which is synchronized (by NTP and through Stratum2 GPS connection) with the Real navy Observatory. The Royal Observatory of the navy has as its principal mission maintaining the basic unit of time in Spain as well as the maintenance and official dissemination of the scale "Universal Time Coordinated" (UTC (ROA)), considered for all purposes as the basis of the legal hour throughout the national territory (R. D. 23 October 1992, No. 1308/1992).

    Actualmente la TSA publica los servicios de sello de tiempo de las formas siguientes:

    • Abstract notation ASN.1, this will meet the specifications of the IETF RFC3161, using syntax of petitions and answers in abstract notation ASN.1 encoded in DER.
    • Web Service diseñados para facilitar la integración con las aplicaciones, utilizando la especificación de mensajes XML-SOAP.

    Es una solución basada en software libre, estándares abiertos y en java.

    Services available in the TSA are shown below.

    1. Solicitar sello de tiempo: Por medio de este servicio se proporciona la funcionalidad de generar un sello de tiempo para una acción de firma de datos o de documento.
    2. Validar sello: A través de este servicio se proporciona la posibilidad de verificar la validez de un sello de tiempo      contenido en una firma digital.
    3. Request resealed time: to preserve the longevity of the validity of the stamps generated on the documents or transactions, in the event that can be put into question the validity of a stamp issued. Through this service provides the functionality to generate a new stamp of time for a signature action data or document.

    Requirements:

    To integrate into the MINHAP TSA@ needs to be a simple steps:

    1. Estar conectado a la Red SARA – Sistema de Aplicaciones y Redes para las Administraciones
    2. You can download the form to access and documentation and manuals from the download area (for users of public administrations recorded in the portal).
    3. Contact the customer support through the corresponding form (see the related links) and facilitate your contact information, as well as the ACL duly filled out.
    4. El servicio de Soporte le informará debidamente de los parámetros de conexión con los servicios: URL, identificador de aplicaciones, etc

    To access all the documentation you must be a registered user, for this, access the page of PAE (http://administracionelectronica.gob.es/) and register how user.

    Advantages:

    The benefits that the platform facilitates to agencies are:

    1. Cost reduction: the service allows you to optimize the cost of the services of validation and emission of time stamps for each application.
    2. Innovation: the platform of TS@ has become the first authority of time-stamping synchronized with the ROA which provides horizontal electronic services to all public administrations of the country for free.
    3. Promover y facilitar servicios cuyo objetivo sea el cumplimiento de las obligaciones de la Ley 39/2015 de las Administraciones en relación a garantizar la acreditación a cargo de un tercero de confianza de la fecha y hora de realización de cualquier operación o transacción por medios electrónicos.

    Technical Description

    The TS@ is a technological platform, based on J2EE, which offers validation and time-stamping. The stamps may be generated in binary format following the standards and XMLTimeStampToken RFC3161. Besides the validation and sealed will allow the resellados of old stamps.

    These functions are deployed in two types of interfaces, one based on the TCP protocol and HTTPS, for the application of time stamps RFC3161 and the other based on webService-Security, for the generation of stamps, validation and re-sellado.

    The protocols of time-stamping, in which the platform is based, are specified in the following rules:

    • RFC 3161 “Internet X.509 Public Key Infrastructure Time Stamp Protocols “, estándar definido por la Internet Engineering Task Force (IETF) para el protocolo Time Stamp.
    • IETF RFC 3628 Policy Requirements for Time-Stamping Authorities (TSAs).
    • ETSI TS 102 023 Policy requirements for time-stamping authorities.
    • XML Timestamping Profile of the 2 OASIS Digital Signature Services (DSS) ver. 1.0.
    • ETSI TS 101 861 Time stamping profile.

     

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