A security authentication method based on sram PUF and a terminal and authentication system

Abstract

The invention discloses a security authentication method based on an SRAM PUF (Static Random Access Memory Physical Uncloable Function), and belongs to the technical field of network security. Specific to the security problem of an existing authentication system based on the SRAM PUF, the invention discloses the security authentication method. Nodes of an SRAM PUF module are classified into random nodes and authentication nodes. During authentication, an authentication sequence and a random number sequence are generated respectively by using the authentication nodes and the random nodes, and salting Hash operation is performed on the authentication sequence by using the generated random number sequence, so that the security of an authentication process is enhanced effectively, and the complexity of terminal equipment is lowered. The invention also discloses a terminal and an authentication system. Through adoption of the security authentication method, the terminal and the authentication system, the security of the authentication process can be enhanced greatly. Moreover, the security authentication method, the terminal and the authentication system are easily compatible with existing equipment, and have good application prospects.

Description

technical field [0001] The invention relates to a security authentication method, in particular to a security authentication method based on SRAM PUF (Static Random Access Memory Physically Unclonable Function), and belongs to the technical field of network security. Background technique [0002] PUF (Physical Unclonable Functions, physical unclonable functions, or PUFs for short) widely exists in existing mobile and Internet terminal devices. Relevant papers and monographs at home and abroad have made various definitions of physical unclonable functions. Generally speaking, physical unclonable functions refer to a physical entity that can rely on differences in the manufacturing process to produce its unique output. (usually binary), these outputs are difficult to clone. Each component of PUFs has local parameter differences. Through PUFs "algorithm", these local differences will be combined, compared or directly output to form the unique binary output of the circuit. PUF...

AI Technical Summary

Problems solved by technology

However, there are obvious defects in this method: as a one-way hash function, the hash algorithm is widely used in information authentication.

There are many ways to solve this problem. One is the combination of hash algorithm and encryption algorithm, which improves the security but leads to a sharp increase in cost and a decrease in efficiency.

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