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Method for computing data password in real time

A real-time data and password technology, applied in digital transmission systems, electrical components, transmission systems, etc., can solve the problem of high chip manufacturing costs

Inactive Publication Date: 2011-02-16
ENOVA TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Such large data buffers are typically implemented on IDE application specific integrated circuits (ASICs) using expensive static random-access memory (SRAM) macros or similar components , which leads to a high manufacturing cost of the chip

Method used

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  • Method for computing data password in real time
  • Method for computing data password in real time
  • Method for computing data password in real time

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Embodiment Construction

[0024] Some embodiments of the invention are combined with Figures 1 to 9 explained in detail. Additional embodiments, features and / or advantages of the invention will become apparent from the detailed description, or be learned by practice of the invention.

[0025] figure 1 is a schematic block diagram of the real-time data encryption / decryption system 8 for IDE / ATA data transmission. The real-time data encryption / decryption system 8 includes a cryptographic interface 10 coupled between an IDE controller 12 of a host device 16 and an IDE controller 14 of a data storage device 18 during operation. The cryptographic interface 10 is used to perform real-time data encryption / decryption as if there were no transparency during IDE / ATA data transfer between the host device 16 and the data storage device 18 without adversely affecting the overall data transfer efficiency.

[0026] The IDE controller 12 supports the standard full-ATA protocol and includes a conventional large dat...

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Abstract

The invention discloses a method for computing a data password in real time. The method is implemented through a password interface which is coupled between a main device and a data storage device during operation. The password interface is used for computing the data password in real time in an approximately transparent and nonexistent way during the data transmission period of ultra direct memory access / multi-word direct memory access (UDMA / Multi-word DMA) between the main device and the data storage device.

Description

[0001] Cross-References to Related Applications [0002] This application is filed on August 3, 2004, and the Chinese patent application number 200410070376.6 awaiting judgment is a branch of the invention titled "Instant Data Encryption / Decryption System and Method for IDE / ATA Data Transmission", which is fully disclosed in This is incorporated by reference. technical field [0003] The invention relates to data encryption / decryption, in particular to a real-time data encryption operation method. Background technique [0004] Integrated Drive Electronics (IDE for short) is a standard electronic interface between a computer motherboard bus and a disk storage device. The IDE has been adopted as the standard of the American National Standards Institute (ANSI), so that the ANSI design of the IDE is an Advanced Technology Attachment (ATA). IDE / ATA is also known as an electronic protocol for transferring data from a computer or a host device to a data storage device, or transfe...

Claims

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Application Information

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IPC IPC(8): H04L29/06H04L9/00
Inventor 万述宁石志忠庄逸尧邱伯文
Owner ENOVA TECH