Access management method

1. A computer-implemented method of managing access to a resource through a communication network by a group of users comprising a first user and at least one second user, the method comprising:

assigning beforehand, to each user of the group, a secret information specific to the user, and assigning beforehand, to the resource, a secret information specific to the resource, said resource specific secret information being determined as a function of the user specific secret information of all the users;

receiving from the first user a first request for accessing the resource, said first request including a secret information given by the first user, and verifying that the secret information given by the first user corresponds to the secret information specific to the first user;

verifying, using a processor of the computer, that all the users of the group have requested access to said resource through the communication network and have given the secret information specific to each user;

determining a value of the resource specific secret information from all the user specific secret information given, and comparing said value with the assigned resource specific secret information; and

authorizing all the users to access the resource if said determined value of the resource specific secret information equals the assigned resource specific secret information.

2. The method according to claim 1 , wherein a request by a given user of the group for accessing the resource, is associated with a step of authentication of that given user, whereby the access to the resource is authorized to all of said first and said at least one second users once all of the users have requested access to said resource and have been authenticated.

3. The method according to claim 2 further comprising, after receiving from the first user said first access request, a step of reporting completion of said first access request to said at least one second user.

4. The method according to claim 1 , wherein said user specific secret information is chosen by a resource manager.

5. The method according to claim 1 , wherein said user specific secret information is chosen by said users.

6. The method according to claim 1 , wherein the step of determining said value of the resource specific secret information includes changing a variable as a function of said user specific secret information given.

7. A computer program stored on a non-transitory computer-readable medium, comprising program code instructions for carrying out the method according to claim 1 when said program is executed on a computer.

8. The method according to claim 1 , further comprising:

prompting all the users of the group to enter secret information specific to each user of the group, after the first request from the first user has been received; and

inhibiting access to said resource as long as not all of the users of the group have correctly entered the secret information.

9. The method according to claim 1 , further comprising assigning a secret information specific to each user of the group by segmenting a string of characters into string segments, and assigning a string segment and an associated position to each user of the group, said string of characters being the secret information specific to the resource.

10. A management system for managing access to a resource through a communication network by a group of users comprising a first user and at least one second user, the system comprising:

means for assigning beforehand, for each user of the group, a secret information specific to the user, and for the resource a secret information specific to the resource, said resource specific secret information being determined as a function of the user specific secret information of all the users;

means for receiving from any user of the group a request to access a resource;

means for verifying that all the users of the group have requested access to said resource through the communication network and have given the secret information specific to each user;

means for determining a value of the resource specific secret information from all the user specific secret information given, and for comparing said value with the assigned resource specific secret information; and

means for authorizing all the users to access the resource if said determined value of the resource specific secret information equals the assigned resource specific secret information.