Abstract: A data integrity system including a transmitter, having a TX pseudorandom function generator, a TX switching function having a transmitting option and a TX combiner operative to receive, from a Host, an initialization data entity including at least one word, [TA1], in an initialization phase, to receive, during normal operation, two data entities of interest each including at least one data word of interest [TA2] and [TA3] respectively; to receive a first data entity including at least one word [TC1] comprising a randomized data entry, from the TX pseudorandom function generator, to generate a first XOR sum of the initialization data entity's word [TA1] and the at least one randomized data entity [TC1], in at least one iteration of an initialization phase; and, during normal operation, to generate and to output a second XOR sum [TA2?TC2=TB2] and a third XOR sum [TA3?TC3=TB3], wherein TB2 and TB3 are randomized data entities, wherein the words TA1, TA2 and TA3 are operative to initialize the data integrity sys

Abstract: A data integrity system including a transmitter, having a TX pseudorandom function generator, a TX switching function having a transmitting option and a TX combiner operative to receive, from a Host, an initialization data entity including at least one word, [TA1], in an initialization phase, to receive, during normal operation, two data entities of interest each including at least one data word of interest [TA2] and [TA3] respectively; to receive a first data entity including at least one word [TC1] comprising a randomized data entry, from the TX pseudorandom function generator, to generate a first XOR sum of the initialization data entity's word [TA1] and the at least one randomized data entity [TC1], in at least one iteration of an initialization phase; and, during normal operation, to generate and to output a second XOR sum [TA2?TC2=TB2] and a third XOR sum [TA3?TC3=TB3], wherein TB2 and TB3 are randomized data entities, wherein the words TA1, TA2 and TA3 are operative to initialize the data integrity sys

Abstract: An arrangement, system, and methods for creating and distributing authenticated personal information for users of network services and participants in social surveys, and in chat rooms and other forums. A trusted organization verifies that personal information presented by a user is correct, and authenticates the information in an encapsulated form as “certified profiles” within a smart card or other secure portable hardware device issued to the user Certified profiles are authenticated by digital signatures of the trusted organization and the profile users. Personal information in certified profiles can be in raw and/or in statistically-processed and abstracted form, and can be tailored by the user for specific needs to include whatever personal information is required, and to exclude all other personal information.

Abstract: A computerized venue management system for managing a venue serving clients, the system comprising a multiplicity of portable computing devices each associated with a loyalty rating representing a client of the venue; a plurality of computerized delivery terminals each capable of communicating with and serving any one of the multiplicity of portable computing devices wherein at least a subset of the plurality of terminals is operative to enable delivery of at least one Loyalty based entitlement to at least one client of the venue and, in conjunction with delivery of the at least one entitlement, to enhance the individual portable computing device's loyalty rating, wherein the entitlement is computed to encourage more even distribution of clients over time by weighting at least one client's entitlement positively as a function of presence of the client's portable computing devices at the venue at times of lesser client attendance.