Secured inter-application communication in mobile devices

1. A computer-implemented method for accessing network resources using single sign-in information, comprising:

receiving, by a first application in a mobile computing device, sign-in information from a user; and

enabling the user to sign in to a second application, in the mobile computing device, with the first application to allow the second application to access network resources on behalf of the user from the resource server based on (a) a first application identification (ID) of the second application, the first application ID being associated with an application distribution server storing the second application, (b) the user authorizing the second application to the resource server, and (c) receiving an access token from the resource server to allow the second application to access the network resources, the second application being configured to generate an encryption key pair including a public key and a private key, the public key being communicated to the first application with a second application identification (ID) assigned to the second application by the resource server during registration of the second application with the resource server, the mobile computing device coupled with the resource server and distribution server via a network.

2. The method of claim 1 , further comprising communicating the first application ID to a verification server to verify that the second application is the trusted application, the mobile computing device being coupled with the verification server via the network.

3. The method of claim 1 , further comprising:

submitting a request, by the first application, for an authorization from the resource server, wherein the request includes (a) the second application ID assigned to the second application and the public key, and (b) a redirect link to an entry point in the second application; and

receiving, by the first application, an authorization grant from the resource server based on the second application ID having been verified by the resource server.

4. The method of claim 3 , further comprising:

receiving, by the first application, an authorization by the user to authorize the second application to access the resources from the resource server on behalf of the user; and

communicating, by the first application, the authorization by the user and the authorization grant to the resource server.

5. The method of claim 4 , further comprising:

receiving, by the first application, an access token from the resource server, the access token to be used by the second application to access the resources in the resource server on behalf of the user;

encrypting, by the first application, the access token using the public key received from the second application; and

communicating the encrypted access token, by the first application, to the second application.

6. The method of claim 5 , further comprising:

decrypting the encrypted access token, by the second application, using the private key to generate a decrypted access token;

using the decrypted access token, by the second application, to access the network resources from the resource server; and

delivering the network resources, by the second application, to the user.

7. The method of claim 6 , wherein communication between the first application and the second application is based on an inter-process communication (IPC) protocol.

8. A computer program product, comprising a non-transitory computer usable medium having a computer readable program code embodied therein, the computer readable program code adapted to be executed to implement a method comprising:

receiving, by a first application in a mobile computing device, sign-in information from a user; and

enabling the user to sign in to a second application, in the mobile computing device, with the first application to allow the second application to access network resources on behalf of the user from the resource server based on (a) a first application identification (ID) of the second application, (b) the user authorizing the second application to the resource server, and (c) receiving an access token from the resource server to allow the second application to access the network resources, the second application being configured to generate an encryption key pair including a public key and a private key, the public key being communicated to the first application with a second application identification (ID) assigned to the second application by the resource server during registration of the second application with the resource server, the mobile computing device coupled with the resource server and distribution server via a network.

9. The computer program product of claim 8 , further comprising communicating the first application ID to a verification server to verify that the second application is a trusted application, the mobile computing device being coupled with the verification server via the network.

10. The computer program product of claim 8 , further comprising:

submitting a request, by the first application, for an authorization from the resource server, wherein the request includes (a) the second application ID assigned to the second application and the public key, and (b) a redirect link to an entry point in the second application;

receiving, by the first application, an authorization grant from the resource server based on the second application ID having been verified by the resource server;

receiving, by the first application, an authorization by the user to authorize the second application to access the resources from the resource server on behalf of the user; and

communicating, by the first application, the authorization by the user and the authorization grant to the resource server.

11. The computer program product of claim 10 further comprising:

receiving, by the first application, an access token from the resource server, the access token to be used by the second application to access the resources in the resource server on behalf of the user;

encrypting, by the first application, the access token using the public key received from the second application; and

communicating the encrypted access token, by the first application, to the second application.

12. The computer program product of claim 11 , further comprising:

decrypting the encrypted access token, by the second application, using the private key to generate a decrypted access token;

using the decrypted access token, by the second application, to access the network resources from the resource server; and

delivering the network resources, by the second application, to the user.

13. An apparatus comprising:

one or more processors; and

a non-transitory computer readable medium storing a plurality of instructions, which when executed, cause the one or more processors to:

receive, by a first application in a mobile computing device, sign-in information from a user; and

enable the user to sign in to a second application, in the mobile computing device, with the first application to allow the second application to access network resources on behalf of the user from the resource server based on (a) a first application identification (ID) of the second application, the first application ID being associated with an application distribution server storing the second application, (b) the user authorizing the second application to the resource server, and (c) receiving an access token from the resource server to allow the second application to access the network resources, the second application being configured to generate an encryption key pair including a public key and a private key, the public key being communicated to the first application with a second application identification (ID) assigned to the second application by the resource server during registration of the second application with the resource server, the mobile computing device coupled with the resource server and distribution server via a network.

14. The apparatus of claim 13 , further comprising instructions, which when executed, will cause the one or more processors to communicate the first application ID to a verification server to verify that the second application is the trusted application, the mobile computing device being coupled with the verification server via the network.

15. The apparatus of claim 13 , further comprising instructions, which when executed, will cause the one or more processors to:

submit a request, by the first application, for an authorization from the resource server, wherein the request includes (a) the second application ID assigned to the second application and the public key, and (b) a redirect link to an entry point in the second application; and

receive, by the first application, an authorization grant from the resource server based on the second application ID having been verified by the resource server.

16. The apparatus of claim 15 , further comprising instructions, which when executed, will cause the one or more processors to:

receive, by the first application, an authorization by the user to authorize the second application to access the resources from the resource server on behalf of the user; and

communicate, by the first application, the authorization by the user and the authorization grant to the resource server.

17. The apparatus of claim 16 , further comprising instructions, which when executed, will cause the one or more processors to:

receive, by the first application, an access token from the resource server, the access token to be used by the second application to access the resources in the resource server on behalf of the user;

encrypt, by the first application, the access token using the public key received from the second application; and

communicate the encrypted access token, by the first application, to the second application.

18. The apparatus of claim 17 , further comprising instructions, which when executed, will cause the one or more processors to:

decrypt the encrypted access token, by the second application, using the private key to generate a decrypted access token;

use the decrypted access token, by the second application, to access the network resources from the resource server; and

deliver the network resources, by the second application, to the user.

19. The apparatus of claim 18 , wherein communication between the first application and the second application is based on an inter-process communication (IPC) protocol.