Enciphering method of computer electronic documents

Abstract

The method includes: 1) building a unique key pair for each person with legal ID; 2) AES symmetry cryptographic algorithm is used to encrypt the secret document, and the said secret document is also encrypted by using public key provided by legal reader of the said document, namely using a cipher key adopting RAS asymmetry encryption algorithm; 3) after the reader gets the encrypted document and document key, he first decrypts document key by using private key, and then decrypts the document by using document key.

Description

technical field

[0001] The invention relates to the encryption and decryption methods of all electronic documents in the computer field, mainly an encryption method for computer electronic documents. Background technique

[0002] The 21st century is an information century, and the rapid development of network technology has further improved the degree of information sharing. The network has become an indispensable basic environment for most enterprise work. With the help of the Internet, people have greatly improved their work efficiency, and at the same time quietly changed our traditional work and life style. It is the interconnectivity and versatility of the network, while people enjoy the convenience brought by the network, the problem of data security has become more and more prominent. Governments, enterprises and institutions have also begun to attach great importance to network security issues. Some units have invested heavily and introduced some network security ...