三、文电鉴别1.用密码技术进行文电鉴别在引言中我们曾提到,可以把密码技术用于文电鉴别(如图2所示)。这时,由于密码技术的使用目的不同于数据加密,因此它的使用方法也有所不同。例如,对于采用公开密钥的系统,发送方A不是采用接收方B的公开密钥进行加密,而是用发送方自己的隐匿密钥D_A加密 Third, the text authentication 1. The use of password technology for text authentication In the introduction, we have mentioned that the password can be used for text authentication technology (as shown in Figure 2). At this moment, the use method of password technology is different from the purpose of data encryption. For example, for a system using a public key, Sender A encrypts with the sender’s own secret key D_A instead of using the public key of Recipient B for encryption