Supercharge Your Innovation With Domain-Expert AI Agents!

Data encryption apparatus, data decryption apparatus

A data encryption and data decryption technology, applied in data recording, secure communication devices, computer security devices, etc., can solve problems such as inability to transmit data

Inactive Publication Date: 2008-08-20
FUJITSU LTD
View PDF2 Cites 4 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0024] However, when the data relay device performs cryptographic processing, the following problem may occur: data cannot be transferred depending on the type of interface connecting the RAID controller and the disk device, and the format type of cryptographic processing used in the encryption chip.
[0045] This leads to an important problem of how to perform encryption and decryption without interrupting data transfer even when the data size as a unit for data transfer differs from the data size as a unit for cryptographic processing

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Data encryption apparatus, data decryption apparatus
  • Data encryption apparatus, data decryption apparatus
  • Data encryption apparatus, data decryption apparatus

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0064] Exemplary embodiments of a data encryption device, a data decryption device, a data encryption method, a data decryption method, and a data relay device according to the present invention will be described in detail with reference to the accompanying drawings. The current embodiment describes the structure of applying the present invention to an FC switch.

[0065] The outline of the FC switch according to the present embodiment will be described below. 1 and 2 are schematic diagrams for explaining the outline of the FC switch according to the present embodiment. FIG. 1 depicts the structure of applying the present invention to the FC switch illustrated in FIG. 13 .

[0066] As shown in FIGS. 1 and 2 , the FC switch according to the present embodiment is a device that relays data exchanged between a RAID controller and a disk device, and encrypts and decrypts the data. The FC switch has a main feature of being able to perform encryption and decryption without interrup...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The invention relates to a data encryption apparatus and method thereof, data decryption apparatus. The RAID system includes a RAID controller that sends to a disc apparatus data to be encrypted by a data relay apparatus connected to the RAID controller and the disk apparatus. When receiving a data transfer request packet indicating a first receivable size, the data relay apparatus establishes a second receivable size that is equal to or greater than the first receivable size and that is a multiple of an encryption data size. When the RAID controller receives a data transfer request packet containing the established second receivable size, and in response to the data transfer request packet thus received, the data relay apparatus receives data of the second receivable size sent from the RAID controller. The data relay apparatus also encrypts the received data in units of the encryption data size, and then the encrypted data is sent to the disk apparatus in units of the first receivable size.

Description

technical field [0001] The present invention relates to a data encryption device, a data decryption device, a data encryption method, a data decryption method, and a data relay device for encrypting and decrypting data transmitted between a first device and a second device. In particular, the present invention relates to a device capable of encrypting and decrypting data without interrupting data transfer even when the data size as a unit for data transfer is different from that of data as a unit for cryptographic (crypto) processing. Data encryption device, data decryption device, data encryption method, data decryption method, and data relay device. Background technique [0002] Conventionally, in magnetic disk devices, optical disk devices, and other memory devices, in order to prevent leakage of information due to theft and unauthorized access, when data is recorded in storage media such as magnetic disks and optical When a host device of a network system transmits data...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Applications(China)
IPC IPC(8): G06F3/06G06F12/14G11B20/00G06F21/60G06F21/62
CPCG06F21/602G06F3/06G06F12/14G11B20/10H04L9/10
Inventor 羽根田光正
Owner FUJITSU LTD
Features
  • R&D
  • Intellectual Property
  • Life Sciences
  • Materials
  • Tech Scout
Why Patsnap Eureka
  • Unparalleled Data Quality
  • Higher Quality Content
  • 60% Fewer Hallucinations
Social media
Patsnap Eureka Blog
Learn More

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2025 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com