Abstract: A method comprising: providing a basic digital sequence organized as a sequence of bit packets, in which each bit packet is characterized by a respective position in the sequence and corresponds to an alphanumeric or special digital character of a given digital representation; encoding digital information based on the basic digital sequence by an encryption process comprising the steps of encoding the alphanumeric or special characters of the information to be encoded, based on a processing of the positions in which they are present, in the basic digital sequence, so that a subsequent processing of a digital sequence of positional information indicates the way in which to reconstruct the alphanumeric or special characters of the information previously encoded; the digital sequence of positional information in combination with the basic digital sequence being adapted to reconstruct the encoded digital information; decoding digital information received to obtain the respective encoded digital information.