Method for the access-related or communication-related random encryption and decryption of data

A method for access and communication based random encryption and decryption of data, comprising;

• with at least one encrypting unit, subjecting the data to be encrypted to at least one block-by-block permutation wherein at least a portion of the permutation data is generated locally at the location of encryption in a random process,
• with the at least one encrypting unit, encryptsing the data to be encrypted block-by-block using at least one random key which is generated from at least a portion of a global random reference data element provided in all of the units, and from at least one random number locally generated by said at least one encrypting unit,
• with said at least one encrypting unit, adding the locally generated permutation data and the locally generated random number or locally generated random numbers to the encrypted data in form of relative data,
• with at least one decrypting unit, at a location of decryption, retrieveing, prior to decryption, the permutation data and the random number or random numbers from the relative data, wherein all of the random keys are determined from thea global random reference data element provided at the location of decryption, and from the random number retrieved from the relative data, and
• with said at least one decrypting unit, decrypting the data to be decrypted block-by-block using all of the random keys and using at least one re-permutation and/or permutation.