Data encryption in a network memory architecture for providing data based on local accessibility

• US 8,392,684 B2
• Filed: 07/31/2006
• Issued: 03/05/2013
• Est. Priority Date: 08/12/2005
• Status: Active Grant

• Current Assignee: Hewlett Packard Enterprise Development LP (Hewlett-Packard Enterprise Company)
• Original Assignee: Silver Peak Systems Incorporated (Hewlett-Packard Enterprise Company)
• Inventors: Hughes, David Anthony
• Primary Examiner(s): Shah, Sanjiv
• Assistant Examiner(s): Ayash, Marwan
• Application Number:
  US11/497,026
• Publication Number:
  US 20070038858A1
• Time in Patent Office: 2,409 Days
• Field of Search: None
• US Class Current: 711/165
• CPC Class Codes: G06F 3/0605 by facilitating the interaction with a user or administrator
• CPC Class Codes: G06F 3/0623 in relation to content
• CPC Class Codes: G06F 3/0647 Migration mechanisms
• CPC Class Codes: G06F 3/065 Replication mechanisms
• CPC Class Codes: G06F 3/067 Distributed or networked storage systems, e.g. storage area networks [SAN], network attached storage [NAS]
• CPC Class Codes: H03M 7/30 Compression speech analysis-synthesis for redundancy reduction G10L19/00; for image communication H04N; Expansion; Suppression of unnecessary data, e.g. redundancy reduction
• CPC Class Codes: H04L 12/66 Arrangements for connecting between networks having differing types of switching systems, e.g. gateways
• CPC Class Codes: H04L 2209/12 Details relating to cryptographic hardware or logic circuitry
• CPC Class Codes: H04L 41/12 Discovery or management of network topologies
• CPC Class Codes: H04L 63/0281 Proxies
• CPC Class Codes: H04L 63/0428 wherein the data content is protected, e.g. by encrypting or encapsulating the payload
• CPC Class Codes: H04L 63/0471 applying encryption by an intermediary, e.g. receiving clear information at the intermediary and encrypting the received information at the intermediary before forwarding
• CPC Class Codes: H04L 63/061 for key exchange, e.g. in peer-to-peer networks cryptographic mechanisms or cryptographic arrangements for key agreement H04L9/0838
• 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 67/10 in which an application is distributed across nodes in the network software deployment G06F8/60; multiprogramming arrangements G06F9/46
• CPC Class Codes: H04L 67/1097 for distributed storage of data in networks, e.g. transport arrangements for network file system [NFS], storage area networks [SAN] or network attached storage [NAS]
• CPC Class Codes: H04L 67/56 Provisioning of proxy services store-and-forward switching systems in data switching networks H04L12/54
• CPC Class Codes: H04L 67/564 Enhancement of application control based on intercepted application data
• CPC Class Codes: H04L 67/5651 Reducing the amount or size of exchanged application data
• CPC Class Codes: H04L 67/568 : Storing data temporarily at an intermediate stage, e.g. caching
• CPC Class Codes: H04L 9/3234 : involving additional secure or trusted devices, e.g. TPM, smartcard, USB or software token network architectures or network communication protocols for supporting authentication of entities using an additional device in a packet data network H04L63/0853

Abstract

A network memory system for ensuring compliance is disclosed. The network memory system comprises a first appliance configured to encrypt first data, store the encrypted first data in a first memory device. The first appliance also determines whether the encrypted first data exists in a second appliance and transmits a store instruction comprising the encrypted first data based on the determination that the encrypted first data does not exist in the second appliance. The second appliance is further configured to receive a retrieve instruction comprising an index at which the encrypted first data is stored, process the retrieve instruction to obtain encrypted response data, and decrypt the encrypted response data.

Claims

1. A network memory system for ensuring compliance, comprising:

a source-site appliance comprising a first processor and a first memory device, and configured to be coupled to a source-site computer via a source-site local area network;

a destination-site appliance comprising a second processor and a second memory device, and configured to be coupled to a destination-site computer via a destination-site local area network, the source-site computer in communication with the destination-site computer via a wide area network;

the source-site appliance configured to intercept data sent from the source-site computer to the destination-site computer, encrypt the data, store the data in the first memory device, determine whether the data exists in the second memory device, and transmit a store instruction comprising the data if the data does not exist in the second memory device; and

the destination-site appliance configured to receive the store instruction from the source-site appliance, store the data in the second memory device, subsequently receive a retrieve instruction comprising an index at which the data is stored in the second memory device, process the retrieve instruction to obtain encrypted response data, and decrypt the encrypted response data.

2. The network memory system of claim 1 wherein the destination-site appliance is further configured to transmit the decrypted response data.

3. The network memory system of claim 1 wherein the source-site appliance is configured to encrypt the data using an Advanced Encryption Scheme algorithm.

4. The network memory system of claim 1 wherein the source-site appliance is configured to encrypt the data using a Data Encryption Scheme algorithm.

5. The network memory system of claim 1 wherein the source-site appliance is configured to encrypt the data using a Triple Data Encryption Scheme algorithm.

6. The network memory system of claim 1 wherein the destination-site appliance is configured to combine the encrypted response data with a stream.

7. The network system of claim 1 wherein the source-site appliance is configured to store the data at the index independent of an application or data context.

22. The network memory system of claim 1 wherein the destination-site computer is a server.

8. A method for ensuring compliance in network memory, the method comprising:

in a source-site appliance, intercepting data sent from a source-site computer to a destination-site computer, the source-site appliance coupled to the source-site computer via a source-site local area network and the source-site computer in communication with the destination-site computer via a wide area network;

encrypting the data;

storing the data in a first memory device within the source-site appliance;

determining whether the data exists in a destination-site appliance appliance, the destination-site appliance coupled to the destination-site computer via a destination-site local area network;

transmitting a store instruction comprising the data from the source-site appliance based on the determination that the data does not exist in the destination-site appliance;

receiving the store instruction into the destination-site appliance;

storing the data in a second memory device within the destination-site appliance;

subsequently receiving a retrieve instruction into the destination-site appliance, the retrieve instruction comprising an index at which the data is stored;

in the destination-site appliance, processing the retrieve instruction to obtain encrypted response data; and

in the destination-site appliance, decrypting the encrypted response data.

9. The method of claim 8 further comprising transmitting the decrypted response data from the destination-site appliance.

10. The method of claim 8 further comprising encrypting the first data using an Advanced Encryption Scheme algorithm.

11. The method of claim 8 further comprising encrypting the first data using a Data Encryption Scheme algorithm.

12. The method of claim 8 further comprising encrypting the first data using a Triple Data Encryption Scheme algorithm.

13. The method of claim 8 further comprising combining the encrypted response data with a key stream.

14. The method of claim 9 further comprising storing the data at the index independent of an application or data context.

23. The method of claim 8 wherein the destination-site computer is a server.

15. A software product for ensuring compliance in network memory comprising:

software operational when executed by a processor to direct the processor to intercept data sent from a source-site computer to a destination-site computer, encrypt the data in a source-site appliance, store the data in a first memory device within the source-site appliance, determine whether the data exists in a destination-site appliance, transmit a store instruction comprising the data from the source-site appliance based on the determination that the data does not exist in the destination-site appliance, receive the store instruction into the destination-site appliance, store the data in a second memory device within the destination-site appliance, subsequently receive a retrieve instruction into the destination-site appliance, the retrieve instruction comprising an index at which the data is stored, process the retrieve instruction to obtain encrypted response data in the destination-site appliance, and decrypt the encrypted response data in the destination-site appliance; and

a storage medium that stores the software.

16. The software product of claim 15 wherein the software is operational when executed by the processor to transmit the decrypted response data.

17. The software product of claim 15 wherein the software is operational when executed by the processor to encrypt the data using an Advanced Encryption Scheme algorithm.

18. The software product of claim 15 wherein the software is operational when executed by the processor to encrypt the data using a Data Encryption Scheme algorithm.

19. The software product of claim 15 wherein the software is operational when executed by the processor to encrypt the data using a Triple Data Encryption Scheme algorithm.

20. The software product if claim 15 wherein the software is operational when executed by the processor to combine the encrypted response data with a key stream.

21. The software product of claim 15 wherein the software is operational when executed by the processor to store the data at the index independent of an application or data context.

24. The software product of claim 15 wherein the destination-site computer is a server.