E-mail encryption transmitting-receiving system

Abstract

An email encryption transceiver system, comprising an encryption transmitter, a decryption receiver and a key bag, is characterized in that: the encryption transmitter and the decryption receiver are provided with a Liao's chaos generator, and the Liao's chaos generator generates the required The encryption control mechanism uses the chaotic sequence data to calculate and encrypt the mail information to obtain encrypted data, sends encrypted mail, and the decryption receiver uses the chaotic sequence data to perform calculation and decryption on the mail information to obtain the original file. The beneficial effect is that the Liao's chaotic system can be well applied to data encryption. The system has the characteristics of simplicity, speed and good security. Ensure that emails can be encrypted, decrypted and transmitted safely and quickly.

Description

technical field [0001] The invention belongs to an encryption / decryption system for electronic files, in particular to an email encryption sending and receiving system. Background technique [0002] SMTP and POP3 protocols are standards for sending and receiving e-mail on the Internet. Since these two standards do not require encryption of e-mail content, and e-mail content often involves privacy and important data, it is urgent for e-mail users to encrypt e-mail. Require. [0003] Since 2005, there have been many patented technologies on email encryption in my country. For example, "Achieving Method for Ensuring E-mail Security" (Patent Application No. 200510137623) proposes a method for generating mail encryption keys through multiple steps; "A Simple, Reliable E-mail (EMail) Security Solution Scheme" (Patent Application No. 200510130206) proposes a mail encryption key management scheme based on public key system; For the encryption method of the image in the mail; "E-m...

AI Technical Summary

Problems solved by technology

But the disadvantages of these technologies are: they mainly focus on the peripheral technologies of email encryption, such as identity authentication and key management, but there is no detailed description of the core technology of email encryption, that is, the encryption algorithm of email itself

From this, it can be guessed that there may be some unsafe factors in the AES algorithm, so that the United States or some other countries can crack this algorithm

Since emails may involve some more confidential information, the AES algorithm is not suitable for encrypting emails

[0007] 2. The AES algorithm is relatively complicated: the 128-bit AES algorithm consists of 10 rounds of encryption, and each round of encryption consists of four encryption operations: Addkey, SubByte, ShiftRow and MixCoulmn, so the implementation is more complicated

Inefficient for encrypted email data, especially large email attachments

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