Information processing system, information processing apparatus, and non-transitory computer readable medium storing program

1. An information processing system comprising:

a first authentication unit that authenticates a user by a first method;

a first providing unit that provides a first service to the user authenticated by the first authentication unit;

a second authentication unit that authenticates a user by a second method; and

a second providing unit that provides a second service, which is different from the first service, to the user authenticated by the second authentication unit and also provides a service to the user authenticated by the first authentication unit in a case where the first method satisfies a condition determined according to the second method, wherein

the first authentication unit authenticates the user by the first method using first login information, wherein the first login information comprising possession information and first identification information; and

the second authentication unit authenticates the user by the second method using second login information, wherein the second login information comprising second identification information.

2. The information processing system according to claim 1 ,

wherein the condition is satisfied in a case where a security level of the first method is equal to or higher than a security level of the second method.

3. The information processing system according to claim 1 ,

wherein the condition is satisfied in a case where a specific authentication method is added to the first method.

4. The information processing system according to claim 1 , further comprising:

a processing unit that performs processing of associating user identification information in the first method with user identification information in the second method in a case where the condition is satisfied.

5. The information processing system according to claim 2 , further comprising:

a processing unit that performs processing of associating user identification information in the first method with user identification information in the second method in a case where the condition is satisfied.

6. The information processing system according to claim 3 , further comprising:

a processing unit that performs processing of associating user identification information in the first method with user identification information in the second method in a case where the condition is satisfied.

7. The information processing system according to claim 1 ,

wherein the first authentication unit displays a first login screen for authenticating the user by the first method,

wherein the second authentication unit displays a second login screen for authenticating the user by the first method or the second method.

8. The information processing system according to claim 1 ,

wherein the first authentication unit authenticates the user by the first method using first login information,

wherein the second authentication unit authenticates the user by the second method using second login information,

wherein the condition is satisfied in a case where a first security level of the first method is equal to or higher than a second security level of the second method,

wherein the first security level corresponds to a first number of pieces of information in the first login information, and the second security level corresponds to a second number of pieces of information in the second login information.

9. The information processing system according to claim 1 ,

wherein the condition is satisfied in a case where a specific authentication method is added to the first method,

wherein the specific authentication method is selected in a cooperation policy for performing authentication cooperation of the first method, wherein the cooperation policy ensures minimum safety for the service.

10. An information processing apparatus comprising:

an inquiry unit that inquires a first method in a case where a service providing apparatus provides a first service to a user authenticated by the first method;

a first authentication unit that authenticates the user by the first method using first login information, wherein the first login information comprising possession information and first identification information;

a second authentication unit that authenticates a user by a second method; and

a providing unit that provides a second service, which is different from the first service, to the user authenticated by the second authentication unit and also provides a service to the user authenticated by the first method in a case where the first method obtained from a response to the inquiry satisfies a condition determined according to the second method, wherein

the second authentication unit authenticates the user by the second method using second login information, wherein the second login information comprising second identification information.

11. A non-transitory computer readable medium storing a program causing a computer to function as:

an inquiry unit that inquires a first method in a case where a service providing apparatus provides a first service to a user authenticated by the first method;

a first authentication unit that authenticates the user by the first method using first login information, wherein the first login information comprising possession information and first identification information;

a second authentication unit that authenticates a user by a second method; and

a providing unit that provides a second service, which is different from the first service, to the user authenticated by the second authentication unit and also provides a service to the user authenticated by the first method in a case where the first method obtained from a response to the inquiry satisfies a condition determined according to the second method, wherein

the second authentication unit authenticates the user by the second method using second login information, wherein the second login information comprising second identification information.