Soft frequency hopping encryption method for transmission between information systems
An information system and encryption method technology, which is applied in the field of soft frequency hopping encryption for transmission between information systems to achieve the effect of ensuring security and realizing simple and reliable principles.
Active Publication Date: 2021-11-02
THE 28TH RES INST OF CHINA ELECTRONICS TECH GROUP CORP
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Problems solved by technology
However, whether it is hardware encryption or software encryption, the basic principle is to design a complex encryption algorithm, and to encrypt and decrypt information by setting a secret key, which requires a large investment to design a complex encryption algorithm
Although these algorithms have high encryption strength, once they are cracked, new algorithms need to be redesigned
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[0034] In order to make the above objects, features and advantages of the present invention more comprehensible, the present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.
[0035] The embodiment of the present invention discloses a soft frequency hopping encryption method for transmission between information systems. The "soft frequency hopping" is proposed relative to the concept of frequency hopping in the communication field. This method is applied to data transmission encryption between information systems. The data here Transmission not only refers to IP data transmission, but also includes non-IP data transmission, such as radio point-to-point data transmission, Modem-to-Modem data transmission, serial data transmission, etc. By integrating a large number of known encryption and decryption algorithms or simple encryption transformations, the encryption and decryption transformation algorithms us...
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The invention provides a soft frequency hopping encryption method for transmission between information systems, which comprises the following steps of: creating a message encryption and decryption transformation algorithm set, and numbering each algorithm; before a sender information system sends a message, adding an encryption recognition field at the header of the message, which is used for marking the type of the message as a ciphertext or a plaintext; according to the current time, determining a value in the encryption recognition field, sending out the message; and if the type of the message is a ciphertext, determining that the value of the encryption recognition field at the header of the message represents a corresponding encryption transformation algorithm; and after the receiving party information system receives the message, extracting the encryption recognition field of the header of the message, if the message is determined to be a ciphertext, determining a decryption transformation algorithm corresponding to the encryption transformation algorithm of the message according to the value of the encryption recognition field, decrypting the message, and distributing the decrypted message to the interior of the receiving party information system. Compared with the prior art, the method has the advantages that an encryption machine arranged for ensuring information transmission safety between information systems can be omitted, and the method is simple and reliable to implement and difficult to decode.
Description
technical field [0001] The invention relates to the technical field of information transmission encryption, in particular to a soft frequency hopping encryption method for transmission between information systems. Background technique [0002] At present, most of the transmission encryption between information systems is implemented by setting up a pair of encryption machines between information systems (that is, hardware encryption), and a few use software encryption. However, whether it is hardware encryption or software encryption, the basic principle is to design a complex encryption algorithm, and to encrypt and decrypt information by setting a secret key, and these require a large investment to design a complex encryption algorithm. Although these algorithms have high encryption strength, once they are cracked, new algorithms need to be redesigned. Contents of the invention [0003] In the prior art, transmission encryption mostly uses a single or a small number of ...
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IPC IPC(8): H04L29/06H04L9/08H04B1/713
CPCH04L63/0428H04L9/0861H04B1/713
Inventor 陈琛王坤占怡朱永成王慕阳陈贺
Owner THE 28TH RES INST OF CHINA ELECTRONICS TECH GROUP CORP