wmrm drm sdk开发与加密系统总结1_信息安全服务/xx/网络渗透与检测 ...

1.开发客户端加密工具

即基于wmrm 9.0sdk或wmrm 10.0 sdk的exe,除了安装这个对应的sdk开,还要在线访问微软官方站点进行注册。不过解决办法可以导入一个注册表文件(WMRM.reg),免掉在线微软注册这复杂的一步。因为对于用户来说,可不能要求他们都会注册。

否则Wmrmobjs.WMRMProtect的ProtectFile函数会报0xC00D2840错误。

2.wm drm 10.0与9.0的区别问题:

反正经过文件对比分析,给出的asp版本的例子xx一样,没有变化,即表明对外的api函数一样,具体内部实现差别对用户没有影响。但是目前9.0版本已经过期,会出现WMRMLicGen CreateObject 方法产生0xC00000FD异常。升级以后自动解决。

3.drm认证过程:

   前面可以弹出用户自定义的注册验证信息,然后Confirmxxx.asp 中GetLicenseFromURL("<a></a>", 'http://98.126.4.154/drm_course/wm'+ "/prelicgen_xxx.asp?keyid=" + keyid ) 语句才是核心所在,

prelicgen_xxx.asp才是产生证书文件的核心,内如形式如下:

<LICENSERESPONSE><LICENSE 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