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A method and device for implementing a lightweight cryptographic algorithm hbcipher

A technology of cryptographic algorithm and implementation method, which is applied in the field of lightweight cryptographic algorithm HBcipher, and can solve problems such as inability to encrypt large amounts of data

Active Publication Date: 2019-03-15
HENGYANG NORMAL UNIV
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Problems solved by technology

[0007] The present invention provides a method and device for implementing a lightweight cryptographic algorithm HBcipher, the purpose of which is to solve the problem that a large amount of data cannot be encrypted under limited equipment conditions

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  • A method and device for implementing a lightweight cryptographic algorithm hbcipher
  • A method and device for implementing a lightweight cryptographic algorithm hbcipher
  • A method and device for implementing a lightweight cryptographic algorithm hbcipher

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Embodiment Construction

[0086] The present invention will be further described below in conjunction with the accompanying drawings and embodiments.

[0087] A lightweight encryption algorithm HBcipher implementation method, HBcipher block length is 64 bits, when the key length is 64 bits, the number of iterations is 16 rounds, denoted as HBcipher-64, when the key length is 128 bits, iterative The number of rounds is 20 rounds, recorded as HBcipher-128. The HBcipher algorithm adopts a hardware-friendly matrix design for the data to be operated, and the round function adopts three sets of SPN-structured F functions, where the F function is composed of F1, F2, and F3 functions, and the F1 function and the F2 function are operated in parallel, and the results obtained by the two operations Carry out F3 function operation.

[0088] The HBcipher round operation includes 3 groups of F-functions, and each module of these 3 groups of F-functions is described in detail below.

[0089] The F1 function include...

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Abstract

The invention provides a lightweight cryptographic algorithm HBcipher implementation method and device. In the method, a round function used in the encryption or decryption process is an F function adopting three groups of SPN structures, and a novel P2 substitution mode is proposed in the round function. By selecting a round constant count as a round operation control signal, two different operation modes are designed according to the parity of count; when the algorithm is implemented by Xilinx ISE Design Suite 13.2 hardware, the throughput rate of HBcipher-64 is 511.38 Mbps, the throughput rate of HBcipher-128 is 716.6848 Mbps, and compared with a current lightweight cryptographic algorithm, the algorithm has high encryption efficiency.

Description

technical field [0001] The invention belongs to the field of computer encryption, in particular to a method and device for realizing a lightweight cryptographic algorithm HBcipher Background technique [0002] At present, the application of smart card is very extensive, involving every aspect of people's life, so its security is a matter of great concern to everyone. However, due to the limited resources of smart card devices, weak computing power, insufficient storage space and energy sources, traditional encryption algorithms are not suitable for application to resource-constrained smart cards. studies, which mainly focus on the design, security analysis, and implementation performance evaluation of lightweight ciphers. [0003] As a basic technology, data encryption is the cornerstone of all communication security. It is implemented by encryption algorithm and provides great security protection at a small cost. The block cipher algorithm has a fast execution speed, is v...

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04L9/06
CPCH04L9/0631
Inventor 李浪郭影邹祎焦铬邓红卫李永超
Owner HENGYANG NORMAL UNIV
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