Systems, methods, and software for preventing redundant processing of transmissions sent to a remote host computer

• US 7,484,087 B2
• Filed: 04/28/2003
• Issued: 01/27/2009
• Est. Priority Date: 02/24/2003
• Status: Expired due to Term

• Current Assignee: JP Morgan Chase Bank, N.A. (JP Morgan Chase & Co)
• Original Assignee: JP Morgan Chase Bank, N.A. (JP Morgan Chase & Co)
• Inventors: Doddington, Andrew
• Primary Examiner(s): Vo; Tim T
• Assistant Examiner(s): Dwivedi; Mahesh H
• Application Number:
  US10/424,705
• Publication Number:
  US 20040167878A1
• Time in Patent Office: 2,101 Days
• Field of Search: 707/200, 707/202, 707/205, 713/150, 713/156, 705/35, 709/217
• US Class Current: 713/150
• CPC Class Codes: G06Q 30/0603 Catalogue ordering
• CPC Class Codes: G06Q 40/00 Finance; Insurance; Tax strategies; Processing of corporate or income taxes
• CPC Class Codes: H04L 67/01 Protocols
• CPC Class Codes: H04L 67/02 based on web technology, e.g. hypertext transfer protocol [HTTP]
• CPC Class Codes: H04L 67/142 Managing session states for stateless protocols; Signalling session states; State transitions; Keeping-state mechanisms

Abstract

Systems, methods, and software that enable a remote host computer in receipt of a client transmission to reject subsequent redundant or duplicate transmissions from the client. The invention provides systems, methods, and software for attaching unique identifiers to transmissions sent to a client by a host computer. Upon sending the transmission with the attached unique identifier to the client, the host computer stores the unique identifier. The invention further provides methods, systems, and software for attaching the same unique identifier received by the client from the host computer to the particular client transmission that is responsive to the particular host computer transmission. Comparison of the unique identifier attached to the client transmission with stored unique identifiers allows the host computer to reject redundant transmissions.

Claims

1. A method of preventing a remote host-computer from processing a redundant client transmission comprising:

(a) initiating a session between the host-computer and a client;

(b) attaching a first unique identifier to a host-computer transmission, wherein the first unique identifier comprises a first session identifier and a first transmission-set identifier, said session identifier is a constant value for correlating a client transmission to the client session and said transmission-set identifier is a changeable value unique to each transmission set between the host-computer and the client;

(c) the host-computer performing the step of storing the first unique identifier to create a stored unique identifier comprising a stored session identifier and a stored transmission-set identifier;

(d) the host-computer performing the step of sending the host-computer transmission to the client;

(e) the client performing the step of attaching the first unique identifier to a client transmission that is responsive to the host-computer transmission;

(f) the client performing the step of sending the responsive client transmission to the host-computer;

(g) the host-computer performing the step of querying the responsive client transmission for the first unique identifier and comparing it to the stored unique identifier; and

(h) the host-computer performing the step of rejecting the responsive client transmission by one of ignoring the transmission or sending an error message upon no match between the first unique identifier and the stored unique identifier, wherein said rejecting is based on at least one of a redundant request for the client transmission sent by the client such that the host computer identifies a match between the stored session identifier and the first session identifier and the first transmission-set identifier is null/invalid, and on the client transmission sent by the client that does not correspond to the host-computer transmission such that the host computer identifies a match between the stored session identifier and the first session identifier and does not identify a match between the stored transmission-set identifier and the first transmission-set identifier.

2. The method of claim 1, further comprising processing the responsive client transmission upon a match between the first unique identifier and the stored identifier.

3. The method of claim 1, further comprising the host-computer performing the step of changing the identity of the stored unique identifier upon receiving the responsive client transmission.

4. The method of claim 3, wherein changing the identity of the stored unique identifier comprises setting the first transmission-set identifier to a null or void value.

5. The method of claim 1, wherein the first session identifier comprises a name parameter and the first transmission-set identifier comprises a value parameter.

6. The method of claim 5, wherein the name parameter is derived by applying a transformation to some detail that is held by the host-computer and that is specific to the session.

7. The method of claim 5, wherein the value parameter comprises a pseudo-random value or random value.

8. The method of claim 1, wherein the host-computer transmission comprises a web page.

9. The method of claim 1, wherein the responsive client transmission comprises a data field.

10. The method of claim 1, wherein an input field comprises the first unique identifier.

11. The method of claim 1, further comprising the step of generating a new first transmission-set identifier in a random or pseudo-random manner for each successive host-computer transmission, wherein the first session identifier remains constant throughout the session.

12. The method of claim 1, wherein the host-computer comprises a network-based computer or workstation.

13. The method of claim 1, wherein the host-computer comprises an Internet server.

14. A system for preventing a remote host-computer from processing a redundant client transmission comprising a remote host-computer and a client, wherein each of the client and the remote host-computer comprise:

(i) a client memory-storage device and a host-computer memory-storage device;

(ii) a client processor and a host-computer processor connected to the respective storage devices; and

(iii) client software and host-computer software for controlling the respective processors, wherein the memory-storage devices and the processors are operative with the software to;

(a) initiate a session between the host-computer and the client;

(b) attach a first unique identifier to a host-computer transmission, wherein the unique identifier comprises a first session identifier and a first transmission-set identifier, said session identifier is a constant value for correlating a client transmission to the client session and said transmission-set identifier is a changeable value unique to each transmission set between the host-computer and the client;

(c) store the first unique identifier in the host-computer memory-storage device to create a stored unique identifier, wherein said stored unique identifier comprises a stored session identifier and a stored transmission-set identifier;

(d) send the host-computer transmission to the client;

(e) attach the first unique identifier to a client transmission that is responsive to the host-computer transmission;

(f) send the responsive client transmission to the host-computer;

(g) query the responsive client transmission for the first unique identifier and comparing it to the stored unique identifier; and

(h) reject the responsive client transmission by one of ignoring the transmission or sending an error message upon no match between the first unique identifier and the stored unique identifier, wherein said reject is based on at least one of a redundant request for the client transmission sent by the client such that the host computer identifies a match between the stored session identifier and the first session identifier and the first transmission-set identifier is null/invalid, and on the client transmission sent by the client that does not correspond to the host-computer transmission such that the host computer identifies a match between the stored session identifier and the first session identifier and does not identify a match between the stored transmission-set identifier and the first transmission-set identifier.

15. The system of claim 14, wherein the memory-storage devices and the processors are further operative with the software to process the responsive client transmission upon a match between the first unique identifier and the stored identifier.

16. The system of claim 14, wherein the memory-storage devices and the processors are further operative with the software to change the identity of the stored unique identifier upon receipt of the responsive client transmission.

17. The system of claim 16, wherein changing the identity of the stored unique identifier comprises setting the first transmission-set identifier to a null or void value.

18. The system of claim 14, wherein the first session identifier comprises a name parameter and the transmission-set identifier comprises a value parameter.

19. The system of claim 18, wherein the name parameter is derived by applying a transformation to some detail that is held by the host-computer and that is specific to the session.

20. The system of claim 18, wherein the value parameter comprises a pseudo-random value or a random value.

21. The system of claim 14, wherein the host-computer transmission comprises a web page.

22. The system of claim 14, wherein the responsive client transmission comprises a data field.

23. The system of claim 14, wherein an input field comprises the unique identifier.

24. The system of claim 14, wherein the memory-storage devices and the processors are further operative with the software to generate a new first transmission-set identifier in a pseudo-random or random manner for each successive host-computer transmission, wherein the first session identifier remains constant throughout the session.

25. The system of claim 14, wherein the host-computer comprises a network-based computer or workstation.

26. The system of claim 14, wherein the host-computer comprises an Internet server.

27. A computer-readable medium programmed with software that is operative to cause a host-computer comprising a memory-storage device and a processor to:

(a) attach a first unique identifier to a host-computer transmission, wherein the unique identifier comprises a first session identifier and a first transmission-set identifier, said session identifier is a constant value for correlating a client transmission to the client session and said transmission-set identifier is a changeable value unique to each transmission set between the host-computer and the client;

(b) store the first unique identifier in the memory storage device to create a stored unique identifier, wherein said stored unique identifier comprises a stored session identifier and a stored transmission-set identifier;

(c) send the host-computer transmission to a client;

(d) query a responsive client transmission for the first unique identifier and compare it to the stored unique identifier; and

(e) reject the responsive client transmission by one of ignore the transmission or send an error message upon no match between the first unique identifier and the stored unique identifier, wherein said reject is based on at least one of a redundant request for the client transmission sent by the client such that the host computer identifies a match between the stored session identifier and the first session identifier and the first transmission-set identifier is null/invalid, and on the client transmission sent by the client that does not correspond to the host-computer transmission such that the host computer identifies a match between the stored session identifier and the first session identifier and does not identify a match between the stored transmission-set identifier and the first transmission-set identifier.

28. The computer-readable medium of claim 27, comprising a hard drive, a CD disk, or a floppy disk.

29. The computer-readable medium of claim 27, wherein the memory-storage device and the processor are further operative with the software to process the responsive client transmission upon a match between the first unique identifier and the stored identifier.

30. The computer-readable medium of claim 27, wherein the memory-storage device and the processor are further operative with the software to change the identity of the stored unique identifier upon receipt of the responsive client transmission.

31. The computer-readable medium of claim 30, wherein changing the identity of the stored unique identifier comprises setting the first transmission-set identifier to a null or void value.

32. The computer-readable medium of claim 27, wherein the first session identifier comprises a name parameter and the first transmission-set identifier comprises a value parameter.

33. The computer-readable medium of claim 32, wherein the name parameter is derived by applying a transformation to some detail that is held by the host-computer and that is specific to the session.

34. The computer-readable medium of claim 32, wherein the value parameter comprises a pseudo-random value or a random value.

35. The computer-readable medium of claim 27, wherein the host-computer transmission comprises a web page.

36. The computer-readable medium of claim 27, wherein the responsive client transmission comprises a data field.

37. The computer-readable medium of claim 27, wherein an input field comprises the unique identifier.

38. The computer-readable medium of claim 27, wherein the memory-storage device and the processor are further operative with the software to generate a new first transmission-set identifier in a pseudo-random or random manner for each successive host-computer transmission, wherein the first session identifier remains constant throughout the session.

39. The computer-readable medium of claim 27, wherein the host-computer comprises a network-based computer or workstation.

40. The computer-readable medium of claim 27, wherein the host-computer comprises an Internet server.

41. A computer-readable medium programmed with software that is operative to cause a client comprising a memory-storage device and a processor to:

(a) initiate a session between the client and a host computer;

(b) attach a first unique identifier to a client transmission that is responsive to a host-computer transmission, wherein the first unique identifier comprises a first session identifier and a first transmission-set identifier, said session identifier is a constant value for correlating a client transmission to the client session and said transmission-set identifier is a changeable value unique to each transmission set between the host-computer and the client;

(c) send the responsive client transmission to the host-computer;

(d) query the responsive client transmission for the first unique identifier and compare it to a stored unique identifier, wherein said stored unique identifier comprises a stored session identifier and a stored transmission-set identifier; and

(e) reject the responsive client transmission by one of ignore the transmission or send an error message upon no match between the first unique identifier and the stored unique identifier, wherein said reject is based on at least one of a redundant request for the client transmission sent by the client such that the host computer identifies a match between the stored session identifier and the first session identifier and the first transmission-set identifier is null/invalid, and on the client transmission sent by the client that does not correspond to the host-computer transmission such that the host computer identifies a match between the stored session identifier and the first session identifier and does not identify a match between the stored transmission-set identifier and the first transmission-set identifier.

42. The computer-readable medium of claim 41, comprising a hard drive, a CD disk, read only memory, or a floppy disk.

43. The computer-readable medium of claim 41, wherein the first session identifier comprises a name parameter and the first transmission-set identifier comprises a value parameter.

44. The computer-readable medium of claim 43, wherein the name parameter is derived by applying a transformation to some detail that is held by the host-computer and that is specific to the session.

45. The computer-readable medium of claim 43, wherein the value parameter comprises a pseudo-random value or a random value.

46. The computer-readable medium of claim 41, wherein the host-computer transmission comprises a web page.

47. The computer-readable medium of claim 41, wherein the responsive client transmission comprises a data field.

48. The computer-readable medium of claim 41, wherein an input field comprises the unique identifier.

49. The computer-readable medium of claim 41, wherein the host-computer comprises a network-based computer or workstation.

50. The computer-readable medium of claim 41, wherein the host-computer comprises an Internet server.

51. The computer-readable medium of claim 41, wherein the responsive client transmission is processed upon a match between the first unique identifier and the stored identifier.