Abstract: The invention relates to a P2P communication method for multi-subscriber networks, which is protected from deception, eavesdropping and hacking, and wherein the communication carried out in an interval is predominantly carried out in separate rooms, allocated to the P2P communication, and with separate reference data allocated to the P2P communication. At least part of the separate random reference data and/or random data is generated in at least one unit that participates in the P2P communication and is exchanged within the P2P communication in the form of relative data. The separate P2P communication is initiated with respect to at least one global random reference date valid for the time of the P2P communication, the random reference date being valid for a randomly determined time range and being stored in all units that carry out the P2P communications in a secret and non-deceivable manner.

Abstract: A method is provided for encryption and decryption of data of any kind, in which data are encrypted and decrypted using a random key, for ensuring the integrity and/or authenticity thereof, and/or for keeping secret the data contents. At the location of encryption, at least one permutation data element, one key control data element, and a random number are generated. Random keys are determined from at least one separate random reference data element and one random number. Clear data are bit-permuted in function of the permutation data and the random key, and encrypted and/or packet-permuted. The permutation data, key data and random data are added to the encrypted data in form of relative data. At the location of decryption, any data necessary for decryption are determined from the added data, and the encrypted data are decrypted.

Abstract: A method is provided for authenticating and verifying individuals and units, wherein the data exchange between the units proceeds by means of relative data and/or encrypted data. The method is characterized in that the authentication and/or verification processes of individual and/or units are carried out by units that are allocated to individuals or that the authentication and/or verification processes of individuals and/or units are carried out by units authorized to authenticate and/or verify, a unit being authorized to authenticate and/or verify by the transmission of at least one copy of a power by a unit allocated to an individual through the unit allocated to the individual once the owner of the unit allocated to an individual is authenticated.

Abstract: The invention relates to a P2P communication method for multi-subscriber networks, which is protected from deception, eavesdropping and hacking, and wherein the communication carried out in an interval is predominantly carried out in separate rooms, allocated to the P2P communication, and with separate reference data allocated to the P2P communication. At least part of the separate random reference data and/or random data is generated in at least one unit that participates in the P2P communication and is exchanged within the P2P communication in the form of relative data. The separate P2P communication is initiated with respect to at least one global random reference date valid for the time of the P2P communication, the random reference date being valid for a randomly determined time range and being stored in all units that carry out the P2P communications in a secret and non-deceivable manner.