METHOD AND SYSTEM FOR CERTIFYING THE PRESENCE OF AN OPERATOR

摘要

A method for certifying the presence of an operator includes a presence code (104) requested (202) at a given time instant (21, 22) to a first device (103) operable by a user (102); the first device (103) generates (203) the presence code (104), the presence code (104) including a portion generated according to an encoding algorithm (25), wherein the generated portion depends on the time instant (21, 22) and on an identifier (23) of the first device (103); a second device (105) operable by an operator (101) stores (204) the generated presence code (104); the presence code (104) is transmitted (109) to a third validation device (108); the third validation device (108) certifies (212) the presence of the operator (101) at the user (102) at the time instant (21, 22); the certification (212) including: providing the third validation device (108) with at least one piece of time information (21, 206, 306) about the time instant (21, 22), and further providing (205) the identifier (23) of the first device (103), wherein the presence code (104) is validated (208) by comparing it (26) with at least one second presence code (27) generated (25) by the third validation device (108) according to the same encoding algorithm (25) and according to the piece of time information (21, 206, 306) and according to the identifier (23), wherein certification (212) occurs if the comparison (26) shows a match between the presence code (104) and the second presence code (27).

主权项

1. A method for certifying the presence of an operator, comprising the following steps:
a presence code being requested at a given time instant to a first device operable by a user; said first device generating said presence code, wherein said presence code comprises a portion generated according to an encoding algorithm, wherein said generated portion depends on said time instant and on an identifier of said first device; a second device operable by an operator storing said generated presence code; said presence code being transmitted to a third validation device; said third validation device certifies the presence of said operator at said user at said time instant, wherein said certification comprises: providing said third validation device with at least one piece of time information about said time instant, and further providing said identifier of said first device, wherein said presence code is validated by comparing it with at least one second presence code generated by said third validation device according to the same said encoding algorithm and according to said at least one piece of time information and according to said identifier, wherein said certification occurs if said comparison shows a match between said presence code and said at least one second presence code.