File list (Check if you may need any files):
安全报文系统
............\发送方
............\......\bcprov-jdk14-136.jar
............\......\BouncyCastleProvider.class
............\......\cipher.dat
............\......\plain.txt
............\......\recver.cer
............\......\req.csr
............\......\root.cer
............\......\sender.cer
............\......\sender.class
............\......\sender.jar
............\......\sender.java
............\......\sender.keystore
............\......\sender.p7b
............\......\执行.bat
............\......\编译.bat
............\接收方
............\......\bcprov-jdk14-136.jar
............\......\cipher.dat
............\......\plain.txt
............\......\recver.cer
............\......\recver.class
............\......\recver.jar
............\......\recver.java
............\......\recver.keystore
............\......\recver.p7b
............\......\req.csr
............\......\sender.cer
............\......\执行.bat
............\......\编译.bat