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A data encryption and decryption system with comparison function

An encryption and decryption, encryption and decryption module technology, applied in the field of data encryption and decryption control system, can solve problems such as limiting the improvement of system performance

Active Publication Date: 2016-05-04
苏州国芯科技股份有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

To sum up, when the CPU completes the encryption, decryption and comparison of large batches of data, it needs to repeatedly perform three-step operations. The resource consumption of the CPU and the system bus increases sharply with the increase in the amount of processed data, which greatly limits improved system performance

Method used

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  • A data encryption and decryption system with comparison function
  • A data encryption and decryption system with comparison function
  • A data encryption and decryption system with comparison function

Examples

Experimental program
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Embodiment

[0043] Embodiment: a kind of data encryption and decryption system with comparison function

[0044] attached Image 6 In order to apply the SOC security chip structure schematic diagram of the content of the present invention, a kind of data encryption and decryption system with comparison function is included in the SOC security chip, and the data encryption and decryption system includes internal memory, encryption and decryption module and encryption and decryption controller, the data The encryption and decryption controller is composed of data buffer memory, interface control logic, register bank and data comparison logic, which are described below:

[0045] 1. Data buffer memory

[0046] The data buffer memory is composed of a first FIFO buffer and a second FIFO buffer, wherein the first FIFO buffer is used to buffer the original data read from the internal memory, and the second FIFO buffer is used to buffer the encrypted data read from the encryption and decryption m...

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Abstract

The invention relates to a data encryption and decryption system with a comparing function. The data encryption and decryption system is used for bulk data encryption and decryption or / and comparison in an SOC (system-on-chip) security chip. After the encryption and decryption system is configured correspondingly through a CPU (central processing unit), encryption and decryption or / and comparison of batches of data can be completed without using CPU resources or system buses. The data encryption and decryption system has significant advantages in improvement of the batch processing speed of data and conservation of CPU and system bus resources. Moreover, the security of chip data information can be ensured, and the system can be widely applied in the field of SOC security chips.

Description

technical field [0001] The invention relates to a data encryption and decryption control system, in particular to a control system for performing batch encryption and decryption or / and comparison on data in a SOC security chip. Background technique [0002] With the development of social informatization, the information security of SOC chips (System on Chip, also known as system-on-chip, also known as system-on-chip) has an extremely important position. SOC security chips often need to perform large-scale and fast encryption and decryption of data. Compare. At present, most SOC security chips use the CPU to control the encryption and decryption module to perform encryption, decryption and data comparison. For details, see the attached figure 1 ~ attached Figure 5 As shown, the batch encryption and decryption and comparison of data by the CPU includes a data encryption and decryption stage and a data comparison stage, of which: see the attached figure 2 And attached Fi...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06F21/60
Inventor 郑茳肖佐楠匡启和林雄鑫张文婷
Owner 苏州国芯科技股份有限公司
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