Cryptographically Protected Redundant Data Packets

An apparatus comprising:

• at least one processor;
• and
• at least one memory including computer program code for one or more programs;
• the at least one memory and the computer program code configured to, with the at least one processor, cause the apparatus to at least perform:
• produce a number N of redundant data packets by N different production units, wherein the respective production unit comprises an associated explicit identification, and
• generating N cryptographically protected redundant data packets from the N produced redundant data packets by a single cryptographic function,
• wherein the cryptographic function for the generation of the respective cryptographically protected data packet is parameterized using a cryptographic key and the identification associated with the corresponding production unit.

An apparatus for producing cryptographically protected redundant data packets, the apparatus comprising:

• a number N of production units for producing N redundant data packets, wherein the respective production unit comprises an associated explicit identification;
• and
• a number N of generation units for generating N cryptographically protected redundant data packets from the N produced redundant data packets by a single cryptographic function,
• wherein the respective generation unit is configured to parameterize the cryptographic function for the generation of the respective cryptographically protected data packet using a cryptographic key and the identification associated with the corresponding production unit.

An arrangement for a communication network, comprising:

• a plurality of communication nodes that are coupled via the communication network, wherein the respective communication node comprises an apparatus for producing cryptographically protected redundant data packets, wherein the apparatus comprises:
• a number N of production units for producing N redundant data packets, wherein the respective production unit comprises an associated explicit identification;
• and
• a number N of generation units for generating N cryptographically protected redundant data packets from the N produced redundant data packets by a single cryptographic function,
• wherein the respective generation unit is configured to parameterize the cryptographic function for the generation of the respective cryptographically protected data packet using a cryptographic key and the identification associated with the corresponding production unit.