IP Library Granted Patent US 8,261,099
Granted Patent B1
US 8,261,099 · App. 13/190,165 · Granted Sep 4, 2012

Method and system for securing network data

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Quick Facts
Patent No.
US 8,261,099
App. No.
13/190,165
Granted
Sep 4, 2012
Kind
B1
Abstract

Method and system for storing data in a storage device accessible through a storage area network is provided. The method includes receiving data from a host system; generating a first encryption key for encrypting data information that describes the received data; generating a second encryption key that encrypts the first encryption key and the encrypted data information; generating an encryption packet that includes the second encryption key, the first encryption key and the data information; storing the encryption packet at one or more memory locations; and periodically refreshing the encryption packet without periodically encrypting the received data for securely storing the received data.

Claims (22)

1. A machine-implemented method, comprising:

receiving data from a host system;

generating a first encryption key for encrypting data information that describes the received data;

generating a second encryption key that encrypts the first encryption key and the data information;

generating an encryption packet that includes the second encryption key, the first encryption key and the data information;

storing the encryption packet at one or more memory locations; and

periodically regenerating the encryption packet.

2. The method of claim 1 , wherein a device receives the data from the host system.

3. The method of claim 2 , wherein a key generator module in the device generates the first encryption key, the second encryption key and the encryption packet.

4. The method of claim 2 , wherein the encryption packet is stored in the device.

5. The method of claim 1 , wherein the data information includes logical unit information (LUN) and logical block address (LBA) information.

6. A system, comprising:

a host system for writing and reading data from a storage device that is accessible through a storage area network;

a device that receives the data from the host system and (a) generates a first encryption key for encrypting data information that describes the data received from the host system; (b) generates a second encryption key that encrypts the first encryption key and the data information; and (c) generates an encryption packet that includes the second encryption key, the first encryption key and encrypted data information; wherein the encryption packet is stored in a memory for the device; and the device periodically regenerates the encryption packet.

7. The system of claim 6 , wherein a key generator module in the device generates the first encryption key, the second encryption key and the encryption packet.

8. The system of claim 6 , wherein the data information includes logical unit number (LUN) information and logical block address (LBA) information.

9. A device, comprising:

a memory:

an interface for receiving data from a host system; and

a key generator module that (a) generates a first encryption key for encrypting data information that describes the data received from the host system; (b) generates a second encryption key that encrypts the first encryption key and the data information; and (c) generates an encryption packet that includes the second encryption key, the first encryption key and the encrypted data information; and (d) stores the encryption packet in the memory; wherein the device periodically regenerates the encryption packet.

10. The device of claim 9 , wherein the device is a Fibre Channel based device.

11. The device of claim 9 , wherein the data information includes logical unit information (LUN) and logical block address (LBA) information.

Assignments (7)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded May 15, 2020
From: CAVIUM INTERNATIONAL
To: MARVELL ASIA PTE, LTD.
Reel/Frame 053179/0320 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Feb 17, 2020
From: CAVIUM, LLC
To: CAVIUM INTERNATIONAL
Reel/Frame 051948/0807 →
CHANGE OF NAME Recorded Oct 8, 2018
From: CAVIUM, INC.
To: CAVIUM, LLC
Reel/Frame 047205/0953 →
RELEASE OF SECURITY INTEREST Recorded Jul 6, 2018
From: JP MORGAN CHASE BANK, N.A., AS COLLATERAL AGENT
To: CAVIUM, INC; CAVIUM NETWORKS LLC; QLOGIC CORPORATION
Reel/Frame 046496/0001 →
MERGER Recorded Oct 18, 2017
From: QLOGIC CORPORATION
To: CAVIUM, INC.
Reel/Frame 044812/0504 →
SECURITY AGREEMENT Recorded Mar 1, 2017
From: QLOGIC CORPORATION
To: JPMORGAN CHASE BANK, N.A., AS COLLATERAL AGENT
Reel/Frame 041854/0119 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Feb 15, 2012
From: SHAH, SHISHIR
To: QLOGIC, CORPORATION
Reel/Frame 027711/0742 →