Abstract: A method for user-oriented information search and information gathering using a backend system and a frontend system includes: providing a search query element to the frontend system; generating, initializing, or instantiating an information queue element related to at least one type of relevant information element associated with the search query element; feeding the content of the information queue element to at least one queue consumer element related to the information queue element, wherein potentially relevant information elements are gathered or searched by the at least one queue consumer element related to the information queue element; and feeding the potentially relevant information elements to a processing element. The processing element, by using information stored in a database element, performs a validation on the potentially relevant information elements to obtain relevant information elements.

Abstract: A method for user-oriented information search and information gathering using a backend system and a frontend system includes: providing a search query element to the frontend system; generating, initializing, or instantiating an information queue element related to at least one type of relevant information element associated with the search query element; feeding the content of the information queue element to at least one queue consumer element related to the information queue element, wherein potentially relevant information elements are gathered or searched by the at least one queue consumer element related to the information queue element; and feeding the potentially relevant information elements to a processing element. The processing element, by using information stored in a database element, performs a validation on the potentially relevant information elements to obtain relevant information elements.

Abstract: A system for providing a user with access to different services of at least one service provider in a network considering privacy and security via a user-related unique digital identifier (D-ID). The system includes: a D-ID middleware; and a D-ID-agent. The D-ID agent is at least partly run on a terminal device of a user and is configured to: generate the D-ID, at least one pseudonym for the user, and a user-defined and pseudonym-specific number of secrets; compute, using the number of secrets and a cryptographic hash function, a root value of a pseudonym-specific Merkle-tree having the secrets as its leafs; transmit the at least one pseudonym and the corresponding root value, both encrypted, to the D-ID middleware; and use a secret of the number of secrets as needed to access a desired service of the different services of the at least one service provider.

Abstract: A system for providing a user with access to different services of at least one service provider in a network considering privacy and security via a user-related unique digital identifier (D-ID). The system includes: a D-ID middleware; and a D-ID-agent. The D-ID agent is at least partly run on a terminal device of a user and is configured to: generate the D-ID, at least one pseudonym for the user, and a user-defined and pseudonym-specific number of secrets; compute, using the number of secrets and a cryptographic hash function, a root value of a pseudonym-specific Merkle-tree having the secrets as its leafs; transmit the at least one pseudonym and the corresponding root value, both encrypted, to the D-ID middleware; and use a secret of the number of secrets as needed to access a desired service of the different services of the at least one service provider.

Abstract: An access method for accessing a protected communication service via a public communication network by using a secure communication network, whereby the secure communication network is based on user groups, including defining an access group having access to the communication service based on the user groups of the secure communication network, generating a group key for all members of the access group, providing the group key to a member of the access group via the secure communication network, and accessing the communication service via the public communication network using the group key, is provided. A communication system including a secure communication network based on user groups, a public communication network, a protected communication service, and an access server for managing access rights to the communication service, whereby the communication system implements the above method is further provided.

Abstract: The present invention relates to an access method for accessing a protected communication service via a public communication network by means of a secure communication network, whereby the secure communication network is based on user groups, comprising the steps of defining an access group having access to the communication service based on the user groups of the secure communication network, generating a group key for all members of the access group, providing the group key to a member of the access group via the secure communication network, and accessing the communication service via the public communication network using the group key. The present invention further relates to a communication system comprising a secure communication network based on user groups, a public communication network, a protected communication service, and an access server for managing access rights to the communication service, whereby the communication system is adapted to execute the above method.