代码通过openssl生成x509数字证书，代码中首先生成证书请求，然后将证书请求中的内容转换为der；然后创建x509证书结构，从转换的der中获取证书属性设置到x509结构中，将证书写到crt证书文件中；内容丰富，参考性极强.
资源文件列表
openssls/Debug/456.crt , 0
openssls/Debug/client.crt.bak , 5
openssls/Debug/libeay32.dll , 1077327
openssls/Debug/openssls.exe , 1162240
openssls/Debug/openssls.ilk , 2769992
openssls/Debug/openssls.pdb , 6220800
openssls/Debug/ssleay32.dll , 217167
openssls/Debug/zlib1.dll , 77876
openssls/libeay32.lib , 12507672
openssls/openssls/456.crt , 695
openssls/openssls/client.crt , 0
openssls/openssls/Debug/BuildLog.htm , 131234
openssls/openssls/Debug/mt.dep , 65
openssls/openssls/Debug/openssls.exe.embed.manifest , 1196
openssls/openssls/Debug/openssls.exe.embed.manifest.res , 1260
openssls/openssls/Debug/openssls.exe.intermediate.manifest , 1120
openssls/openssls/Debug/openssls.obj , 25484
openssls/openssls/Debug/openssls.pch , 40894464
openssls/openssls/Debug/openssls.res , 69584
openssls/openssls/Debug/opensslsDlg.obj , 78399
openssls/openssls/Debug/stdafx.obj , 572892
openssls/openssls/Debug/vc90.idb , 1985536
openssls/openssls/Debug/vc90.pdb , 3371008
openssls/openssls/openssls.aps , 104856
openssls/openssls/openssls.cpp , 1679
openssls/openssls/openssls.h , 457
openssls/openssls/openssls.rc , 5179
openssls/openssls/openssls.vcproj , 5492
openssls/openssls/openssls.vcproj.YELISTCPT.Administrator.user , 1415
openssls/openssls/opensslsDlg.cpp , 8226
openssls/openssls/opensslsDlg.h , 1670
openssls/openssls/ReadMe.txt , 2887
openssls/openssls/res/openssls.ico , 67777
openssls/openssls/res/openssls.rc2 , 364
openssls/openssls/resource.h , 726
openssls/openssls/stdafx.cpp , 141
openssls/openssls/stdafx.h , 1854
openssls/openssls/targetver.h , 1030
openssls/openssls.ncb , 35384320
openssls/openssls.sln , 890
openssls/openssls.suo , 40960
openssls/ssleay32.lib , 56830