Communication data encryption and decryption method based on BBS, RSA and SHA-1 encryption algorithm

A technology of SHA-1 and encryption algorithm, which is applied to the public key of secure communication, user identity/authority verification, etc. It can solve the problems of deriving original data and differences in hash results, and achieve harm prevention and high security. Effect
CN103731270AActive Publication Date: 2014-04-16SOUTH CHINA UNIV OF TECH
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
SOUTH CHINA UNIV OF TECH
Publication Date
2014-04-16

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Abstract

The invention discloses a communication data encryption and decryption method based on BBS, RSA and an SHA-1 encryption algorithm. The communication data encryption and decryption method comprises the steps that 1) data to be encrypted and sent are generated; 2) the data to be sent are encrypted for the first time, that is, BBS encryption is carried out on the data to be sent; 3) the data encrypted for the first time generate abstract contents through the SHA-1 encryption algorithm; 4) the data encrypted through the SHA-1 and an abstract are encrypted through an RSA encryption public key provided by a receiving end; 5) cryptograph is sent; 6) the cryptograph is received by the receiving end and is decrypted for the first time through the private key of the receiving end; 7) identity authentication is carried out on the received data; 8) BSS decryption is carried out on the data after the identity authentication, and the content of the data is read. The different characteristics of the three encryption algorithms are utilized, messages to be sent are encrypted through the BBS, the SHA-1 and the RSA algorithm, the encrypted messages for communication are safer, digital signatures are achieved, and it is guaranteed that the received messages are initial messages sent by a sending end and are not tampered.
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Description

technical field

[0001] The present invention relates to the technical field of the encryption and decryption process of sending and receiving data by a mobile terminal, in particular to a communication data encryption and decryption method based on BSS, RSA, and SHA-1 encryption algorithms. Background technique

[0002] With the development of society, the functions of mobile terminals are becoming more and more powerful, and the services provided by various companies and enterprises are also becoming more and more diverse, which greatly facilitates people's lives. However, it is accompanied by the issue of information security. For example, people now transmit information such as account passwords through mobile terminals, and many criminals will use malicious attacks and other means to intercept useful information of users for profit. The encryption process of the mobile terminal proposed by the present invention is based on the following three technologies.

[0003] BSS...

Claims

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