文件名称:simplesign
介绍说明－－下载内容均来自于网络，请自行研究使用
发送方用自己的私钥加密通讯内容生成发送方的数字签名，并将其发送给接受方；接受方利用发送方的公钥对该签名内容进行验证；
思考：
（1）这种方式是否存在安全问题？
（2）请分别选择文件test-1.txt和test_pig.bmp作为通讯内容，分别记录全过程用时，并对比一下；-Sender s private key encrypted communications with their own content generated digital signature the sender, and send it to the receiving party the receiving party using the sender s public key to verify the contents of the signature
Consideration:
(1) whether there are security issues in this way?
(2) Please select the file test-1.txt respectively and test_pig.bmp as communications content, the whole process were recorded with a time and compare
思考：
（1）这种方式是否存在安全问题？
（2）请分别选择文件test-1.txt和test_pig.bmp作为通讯内容，分别记录全过程用时，并对比一下；-Sender s private key encrypted communications with their own content generated digital signature the sender, and send it to the receiving party the receiving party using the sender s public key to verify the contents of the signature
Consideration:
(1) whether there are security issues in this way?
(2) Please select the file test-1.txt respectively and test_pig.bmp as communications content, the whole process were recorded with a time and compare
(系统自动生成,下载前可以参看下载内容)
下载文件列表
简单数字签名与验证\.project
..................\src\xmu\software\intsec\cry\simple\sign\MySimpleSign.java
..................\...\...\........\......\...\......\....\frame\ImagePanel.java
..................\...\...\........\......\...\......\....\.....\User.java
..................\...\...\........\......\...\......\....\.....\UserB.java
..................\...\...\........\......\...\utils\DESUtil.java
..................\...\...\........\......\...\.....\TypeTransform.java
..................\...\...\........\......\...\.....\RSAUtil.java
..................\...\Client.java
..................\bin\xmu\software\intsec\cry\utils\TypeTransform.class
..................\...\...\........\......\...\.....\DESUtil.class
..................\...\...\........\......\...\.....\RSAUtil.class
..................\...\...\........\......\...\simple\sign\frame\UserB$UserCommunicating.class
..................\...\...\........\......\...\......\....\.....\UserB$1.class
..................\...\...\........\......\...\......\....\.....\UserB$Communicate.class
..................\...\...\........\......\...\......\....\.....\UserB.class
..................\...\...\........\......\...\......\....\.....\User$Communicate.class
..................\...\...\........\......\...\......\....\.....\User$UserCommunicating.class
..................\...\...\........\......\...\......\....\.....\User.class
..................\...\...\........\......\...\......\....\.....\ImagePanel.class
..................\...\...\........\......\...\......\....\.....\User$1.class
..................\...\...\........\......\...\......\....\MySimpleSign.class
..................\...\Client.class
..................\.classpath
..................\test-1.txt
..................\实验结果\发送方.jpg
..................\........\接收方.jpg
..................\test_pig.png
..................\src\xmu\software\intsec\cry\simple\sign\frame
..................\bin\xmu\software\intsec\cry\simple\sign\frame
..................\src\xmu\software\intsec\cry\simple\sign
..................\bin\xmu\software\intsec\cry\simple\sign
..................\src\xmu\software\intsec\cry\simple
..................\...\...\........\......\...\utils
..................\bin\xmu\software\intsec\cry\utils
..................\...\...\........\......\...\simple
..................\src\xmu\software\intsec\cry
..................\bin\xmu\software\intsec\cry
..................\src\xmu\software\intsec
..................\bin\xmu\software\intsec
..................\src\xmu\software
..................\bin\xmu\software
..................\src\xmu
..................\bin\xmu
..................\src
..................\bin
..................\实验结果
简单数字签名与验证
..................\src\xmu\software\intsec\cry\simple\sign\MySimpleSign.java
..................\...\...\........\......\...\......\....\frame\ImagePanel.java
..................\...\...\........\......\...\......\....\.....\User.java
..................\...\...\........\......\...\......\....\.....\UserB.java
..................\...\...\........\......\...\utils\DESUtil.java
..................\...\...\........\......\...\.....\TypeTransform.java
..................\...\...\........\......\...\.....\RSAUtil.java
..................\...\Client.java
..................\bin\xmu\software\intsec\cry\utils\TypeTransform.class
..................\...\...\........\......\...\.....\DESUtil.class
..................\...\...\........\......\...\.....\RSAUtil.class
..................\...\...\........\......\...\simple\sign\frame\UserB$UserCommunicating.class
..................\...\...\........\......\...\......\....\.....\UserB$1.class
..................\...\...\........\......\...\......\....\.....\UserB$Communicate.class
..................\...\...\........\......\...\......\....\.....\UserB.class
..................\...\...\........\......\...\......\....\.....\User$Communicate.class
..................\...\...\........\......\...\......\....\.....\User$UserCommunicating.class
..................\...\...\........\......\...\......\....\.....\User.class
..................\...\...\........\......\...\......\....\.....\ImagePanel.class
..................\...\...\........\......\...\......\....\.....\User$1.class
..................\...\...\........\......\...\......\....\MySimpleSign.class
..................\...\Client.class
..................\.classpath
..................\test-1.txt
..................\实验结果\发送方.jpg
..................\........\接收方.jpg
..................\test_pig.png
..................\src\xmu\software\intsec\cry\simple\sign\frame
..................\bin\xmu\software\intsec\cry\simple\sign\frame
..................\src\xmu\software\intsec\cry\simple\sign
..................\bin\xmu\software\intsec\cry\simple\sign
..................\src\xmu\software\intsec\cry\simple
..................\...\...\........\......\...\utils
..................\bin\xmu\software\intsec\cry\utils
..................\...\...\........\......\...\simple
..................\src\xmu\software\intsec\cry
..................\bin\xmu\software\intsec\cry
..................\src\xmu\software\intsec
..................\bin\xmu\software\intsec
..................\src\xmu\software
..................\bin\xmu\software
..................\src\xmu
..................\bin\xmu
..................\src
..................\bin
..................\实验结果
简单数字签名与验证