US 7,096,361 B2 · Method and system for limiting the possibility of transforming data designed to constitute, in particular pre-payment tokens

Abstract

The subject of the invention concerns a process and a system to limit the possibility to transform data, the transformation of TX-type data into TY-type data being carried out using an A-type transformation function, while the transformation of TY-type data into TX-type data is carried out using a B-type transformation function, inverse of the A-type transformation function, the data being in particular designed to constitute for instance pre-payment tokens. According to the invention, the system includes at least one A-type data processing system (STDA), at least one B-type data processing system (STDB), at least one link, at least once, between the system (STDA) and the system (STDB), at least one A-type processing and memorizing unit (UTMA) including at least the A-type transformation function, at least one B-type processing and memorizing unit (UTMB) including the B-type transformation function and not including the A-type transformation function.

Process to limit, through at least one processing and memorizing unit, the possibility to transform TX-type data into TY-type data and the possibility to transform TY-type data into TX-type data, the transformation of the TX-type data into TY-type data being carried out using an A-type transformation function (FA), while the transformation of the TY-type data into TX-type data is carried out using a B-type transformation function (FB), inverse of the A-type transformation function (FA), the data being in particular designed to constitute for instance, pre-payment tokens, and being implemented on at least one data processing system, said process comprising:

using an A-type data processing system (STDA) and a B-type data processing system (STDB),
setting up at least once, at least one link (L) between the A-type data processing system (STDA) and the B-type data processing system (STDB), so as to provide the transfer of at least TY-type data from the A-type data processing system (STDA) to the B-type data processing system (STDB) and/or to provide the transfer of at least TX-type data from the B-type data processing system (STDB) to the A-type data processing system (STDA),
during an A-type customization phase, creating at least one A-type processing and memorizing unit (UTMA) including at least the A-type transformation function (FA),
during an A-type transformation phase:
for a user possessing at least one A-type processing and memorizing unit (UTMA), enabling:
to transfer at least one piece of TX-type data from the A-type data processing system (STDA) to the A-type processing and memorizing unit (UTMA),
to transform in the A-type processing and memorizing unit (UTMA), each piece of TX-type data into a piece of TY-type data, using the A-type transformation function (FA),
to transfer each piece of TY-type data from the A-type processing and memorizing unit (UTMA) to the A-type data processing system (STDA),
for a user not possessing any A-type processing and memorizing unit (UTMA), not being able to transform a piece of TX-type data into a piece of TY-type data, using the A-type transformation function (FA),
during a B-type customization phase, creating at least one B-type processing and memorizing unit (UTMB) including the B-type transformation function (FB) and not including the A-type transformation function (FA),
and during a B-type transformation phase:
for a user possessing a B-type processing and memorizing unit (UTMB), and not possessing an A-type processing and memorizing unit (UTMA),
enabling:
to transfer at least one piece of TY-type data from the B-type data processing system (STDB), to the B-type processing and memorizing unit (UTMB),
to transform in the B-type processing and memorizing unit (UTMB), each piece of TY-type data into a piece of TX-type data, using the B-type transformation function (FB),
to transfer each piece of TX-type data from the B-type processing and memorizing unit (UTMB) to the B-type data processing system (STDB),
not being able to transform a piece of TX-type data into a piece of TY-type data using the A-type transformation function (FA).

14 more elements

Method and system for limiting the possibility of transforming data designed to constitute, in particular pre-payment tokens

Life of this patent

Method and system for limiting the possibility of transforming data designed to constitute, in particular pre-payment tokens

Life of this patent

Abstract

Claims17