The working method of the invention discloses a random key generation, the working methods of information encryption and decryption using different keys, a public key used for encryption, decryption key, which is characterized in that the working process is as follows: 1: P encryption plaintext decryption party public key encryption K1 into cipher text C=E (P, K1); the decryption using the decryption of ciphertext: P private key K2 decrypted into plaintext P=D (P, K2) =D (E (P, K1), K2); 3: P and K1 public key cipher transmission through common channel transmission; 4: K2 private key by decrypting party kept secret preservation. The system can make up for the transaction in the process of data transmission using a single key system and key management leads to complicated, can make the application of key transmission security in the common channel, thereby reducing the cost of key management.
【技術實現步驟摘要】
【技術保護點】
1.一種隨機密鑰生成工作方法, 其特征在于:該工作方法對信息的加密和解密都使用不同的密鑰,公鑰用于加密,私鑰用于解密,其特征在于其工作過程為:①加密:明文P用解密方的公鑰K1加密成密文C=E(P,K1) ;②解密:密文P用解密放的私鑰K2解密成明文P=D(P,K2)=D(E(P,K1),K2) ;③傳輸:密文P和公鑰K1通過普通信道傳輸;④保存:私鑰K2由解密方秘密保存。
【技術特征摘要】
【專利技術屬性】
技術研發人員:熊劍文,尹犢,李飛,任澤,凱祥龍,
申請(專利權)人:成都四方信息技術有限公司,
類型:發明
國別省市:90
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