SIMON algorithm encryption circuit with multiple configuration modes

Abstract

The invention discloses an SIMON algorithm encryption circuit with multiple configuration modes. The circuit comprises a data flow control unit, a round constant switching unit, a secret key expansionunit and a round function operation unit, wherein the data flow control unit is connected with the input ends of the round constant switching unit, the secret key expansion unit and the round function operation unit, and the other output end of the data flow control unit is used for outputting an encryption completion signal; the output end of the round constant switching unit is connected with the input end of the secret key expansion unit; the output end of the secret key expansion unit is connected with the input end of the round function operation unit, and each clock period outputs a group of round secret keys to the round function operation unit; the round function operation unit performs round operation in a corresponding configuration mode until the data flow control unit outputsan encryption completion signal and outputs a ciphertext. The encryption circuit has the advantages of simple structure, multiple configuration modes and small chip size, and is beneficial to wide application in the scene of the Internet of Things.

Description

technical field [0001] The invention relates to the field of encryption chips, in particular to a multi-configuration mode SIMON algorithm encryption circuit. Background technique [0002] Information security in the IoT scenario has been a hot and difficult research topic in the IoT field in recent years. The shortcomings of traditional encryption algorithms and their circuit implementations in terms of area, power consumption, and flexibility have always been obstacles to the application of encryption algorithms in the IoT field. . Although the AES encryption algorithm and ECC encryption algorithm with a single encryption parameter configuration have good encryption performance and high security performance, their implementation lacks flexibility and it is difficult to meet different levels of information security requirements in a wide range of IoT scenarios. Due to the complexity of the encryption process of traditional encryption algorithms such as AES and ECC, the cir...

AI Technical Summary

Problems solved by technology

[0005] The technical problem to be solved by the present invention lies in the complex structure of the SIMON algorithm encryption circuit in the prior art, a single configuration mode, and a large area, which is not conducive to the widespread use of the Internet of Things scene.

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