Method for generating digital fingerprint using pseudo random number code

A method for assuring that a client device is authorized to receive information from a system, the system and the client device being in bi-directional communication over a network, the method comprising:

• reading a predetermined piece of information from said client device pertaining to a hardware component incorporated in said client device;
• using a cryptographic program to receive said predetermined piece of information as an input, and to generate therefrom a registration identification (ID) code for said client device;
• using said client device to supply said registration ID code, and at least one additional piece of user identifying information, to said system when making a call to said system to establish an information exchange session with said system over said network;
• causing said system to use said registration ID code and said piece of user identifying information to initially authenticate said client device as a predetermined client device that is authorized to receive information from said system;
• generating a pseudo random number, in response to determining that said client device is authorized to receive information from said system;
• and
• transmitting said pseudo random number to said client device for storage on said client device, and for use in a subsequent communication to said system to identify said client device as a specific client device authorized to receive information from said system.

A method for assuring that a client device is authorized to receive information from a system, the system and the client device being in bi-directional communication over a network, the method comprising:

• reading a network address of a network card being used in said client device to enable communication on said network;
• reading a predetermined piece of information from said client device pertaining to a non-volatile, mass storage component operating with said client device;
• using a cryptographic hash function to receive said network address and said predetermined piece of information as inputs, and to generate therefrom a registration identification (ID) code for said client device;
• using said client device to supply said registration ID code, and at least one additional piece of user identifying information, to said system when making an initial call to said system over said network;
• generating a pseudo random number (PRN), in response to determining that said client device is authorized to receive information from said system;
• transmitting said PRN to said client device;
• storing said PRN on said client device;
• causing each of said client device and said system to store said PRN;
• and
• using said PRN in subsequent communications to said system to generate a new ID code that authenticates an identity of said client device.

A method for assuring that a client device is authorized to receive information from a system, the system and the client device being in bi-directional communication over a network, the method comprising:

• reading a network address of a network card being used in said client device to enable communication on said network;
• reading a predetermined piece of information from said client device pertaining to a mass storage component incorporated in said client device;
• using a cryptographic hash program to receive said network address and said predetermined piece of information as inputs, and to generate therefrom a registration identification (ID) code for said client device;
• using said client device to supply said registration ID code, and user identifying information comprising at least two of the following, to said system when making an initial call to said system over said network;
• a user selected password;
• a user selected user name;
• and
• a user selected device name;
• generating an initial pseudo random number (PRN), in response to determining that said client device is authorized to receive information from said system;
• transmitting said initial PRN to said client device;
• storing said initial PRN on said client device;
• causing each of said client device and said system to store said initial PRN;
• using said initial PRN in subsequent communications to said system to identify said client device as a specific client device authorized to receive information from said system;
• generating a new PRN using said initial PRN when making a new call to said system;
• using said new PRN and re-generating said registration ID code to generate a one time only client-side hash code, and transmitting said client-side hash code to said system;
• using said system to generate a new system-side PRN using said initial PRN, and re-generating said registration ID code;
• using said system-side registration ID code and said re-generated registration ID code to generate a unique, one time only system-side hash code;
• comparing said client-side hash code and said system-side hash code;
• and
• allowing further communication between said client device and said system only if said client-side hash code and said system-side hash code match.