Abstract: A multiple level security system and method for encrypting data within documents is disclosed. The method includes one or more different encryption algorithms, and can employ the one or more different encryption algorithms to achieve the multiple levels of encryption. More particularly, a first encryption algorithm is based upon multiple rearrangements of bits representing data to obtain encoded data. A second encryption algorithm is based upon performing multiple XOR operations on bits representing data so that each data word is at least encoded with previous data words. Either encryption method or a combination of both encryption methods can be repeatedly applied to portions of data within a document to selectively encrypt each data portion within the document in accordance with the authorization level associated with the data portion.

Abstract: A method of encrypting and transmitting data and a system for transmitting encrypted data. The method includes one or more different encryption algorithms, and may include employing different encryption algorithms to achieve multiple levels of encryption. A first encryption algorithm is based upon multiple rearrangements of bits representing data to obtain encoded data. A second encryption algorithm is based upon performing multiple XOR operations on bits representing data so that each data word is at least encoded with previous data words. The system comprises first and second computers and a plurality of communication parameters. The two computers are communicably connected to a network, and the second computer is adapted to route a transmission to the first computer. The transmission includes a data part and a header part, both of which are encrypted by the second computer utilizing the communication parameters. The first computer decrypts the transmission utilizing the communication parameters.

Abstract: A system for transmitting encrypted data. A plurality of nested communication links are communicably connected to a network. Each communication link includes an originating node and a terminating node which are adapted to route a transmission therebetween. Transmissions between the originating node and the corresponding terminating node of the outermost communication link is routed through at least one inner communication link. The originating node of the outermost communication link generates a transmission having a data part and a first header part, both in an encrypted format, and routes the transmission to the corresponding terminating node. The originating node of an inner communication link modifies the transmission by removing unencrypted references to other communication links; adding a second header part in an encrypted format, and routing the transmission to the corresponding terminating node, where the second header part is decrypted and the transmission is rerouted to an outer communication link.