Unlock instant, AI-driven research and patent intelligence for your innovation.

Multiprocessor system based on encryption bus

A multi-processor system and bus technology, applied in the security field to prevent theft or eavesdropping and ensure security

Pending Publication Date: 2016-12-07
WUHAN SYNTEK CO LTD
View PDF5 Cites 3 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Aiming at the defects in the prior art that do not fundamentally solve the problem of communication security in terms of hardware, the present invention provides a multi-processor system based on an encrypted bus

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
  • Multiprocessor system based on encryption bus
  • Multiprocessor system based on encryption bus
  • Multiprocessor system based on encryption bus

Examples

Experimental program
Comparison scheme
Effect test

Embodiment approach 1

[0036] Implementation Mode 1: Reference Figure 5, the encryption and decryption module 114 is configured with at least one encryption and decryption algorithm 122, and each encryption and decryption algorithm 122 corresponds to a security level. For example, the encryption and decryption module 114 has a built-in encryption algorithm 122, such as Data Encryption Standard (DES), Triple Data Encryption Standard (3DES), RC4 (Rivest Cipher 4), Digital Signature Algorithm (DSA), Advanced Encryption Standard (AES )Wait. Different encryption algorithms can be selected and configured according to different security requirements and available resources. In this embodiment, the encryption and decryption module 114 can be directly connected to the external encryption bus 202 , or connected to the external encryption bus through the interface module 118 , so as to receive the encryption signal input from the encryption bus 202 or send the encryption signal to the encryption bus 202 . F...

Embodiment approach 2

[0037] Implementation Mode 2: Reference Image 6 The encryption and decryption module 114 is provided with at least one encryption and decryption unit 124, and each encryption and decryption unit 124 is configured with an encryption and decryption algorithm. For example, there is only one encryption and decryption unit 124 in the encryption and decryption module 114, and an encryption and decryption algorithm is configured in the encryption and decryption unit, such as Data Encryption Standard (DES), Triple Data Encryption Standard (3DES), RC4 (Rivest Cipher 4), digital Signature Algorithm (DSA), Advanced Encryption Standard (AES), etc. Different encryption algorithms can be selected and configured according to different security requirements and available resources. In this embodiment, the encryption and decryption module 114 can be directly connected to the external encryption bus 202 , or connected to the external encryption bus through the interface module 118 , so as to ...

Embodiment 1

[0041] Such as Figure 4 As shown, the encrypted bus-based multiprocessor system mainly includes three signal processing modules: a signal processor 102 , a memory 104 and a random number generator 106 . These modules are fixedly packaged in the packaging module 116 . Encryption bus 202 is coupled to the multiprocessor system and is located outside of encapsulation module 116 .

[0042] The process of sending the data in the memory 104 to the external encryption bus 202 in the form of ciphertext includes:

[0043] The memory 104 is coupled with the plaintext bus 112 , and sends the plaintext stored therein to the encryption and decryption module 114 via the plaintext bus 112 .

[0044] The encryption and decryption module 114 is directly coupled with the external encryption bus 202 or coupled through an interface module, encrypts the plaintext based on the first encryption algorithm to obtain ciphertext, and sends the ciphertext to the external encryption bus 202 directly or...

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 discloses a multiprocessor system based on an encryption bus. The system comprises a plaintext bus which is used for transmitting a plaintext signal; at least one signal processing module which is connected with the plaintext bus and is used for transmitting the plaintext signal through the plaintext bus; an encryption / decryption module which is coupled with the plaintext bus and an external encryption bus and is used for decrypting an encryption signal input by the external encryption bus and encrypting the plaintext signal input by the plaintext bus; and a packaging unit which is used for fixedly packaging the plaintext bus, the at least one signal processing module and the encryption / decryption module in a non-removable mode. According to the system, through arrangement of the encryption / decryption module and the packaging unit, the multiprocessor system is enabled to be a non-removable whole; the signal on the external interface of the system is encrypted; the security of the system is ensured fundamentally; and information is prevented from being stolen or eavesdropped.

Description

technical field [0001] The invention relates to the field of security technology, in particular to a multiprocessor system based on an encrypted bus. Background technique [0002] In the signal communication process, secure communication has always been the focus of attention. Although communication systems and / or devices in the prior art employ many encryption and decryption techniques to ensure communication security, it is difficult to fundamentally solve the communication security problem. [0003] specifically, figure 1 It is a common system model in the prior art. In this model, all modules are connected on Advanced High Performance Bus (AHB), so as to realize the communication with other modules through this bus. These modules include cryptographic algorithm unit, storage unit, interface unit, watchdog unit and so on. Usually, the data transmitted on AHB is unencrypted, and the communication security is extremely low. Even though the cryptographic algorithm unit ...

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): G06F21/72
Inventor 张科峰
Owner WUHAN SYNTEK CO LTD