curl + “视图状态 MAC 验证失败

我使用 curl 将数据发布到另一台服务器，在每次发布之间，我使用一个函数来获取隐藏字段比如"__VIEWSTATE"。它以前就像一个魅力，但他们更新了那里的网站，所以我重写了我的代码以使用新的字段，但是在最后一步，我收到错误："视图状态 MAC 验证失败。"

如果我在网络浏览器中执行相同的步骤，它可以正常工作，我使用了一个插件来获取浏览器正在发送的帖子数据并将其与我的脚本发送的内容进行比较，它看起来是一样的。

我对 ASP.NET 的了解很少，以及我能在这里找到的有关该错误的所有信息建议对 ASP-NET 服务器上的更改进行建议。

所以我希望这里有人可以指导我找出原因它在浏览器中有100%的成功率，并且 curl 在该页面上的成功率为 0%，但是在以前的页面上使用相同的功能，100% 使用卷曲工作。

发布浏览器发送的数据：

__EVENTTARGET=
__EVENTARGUMENT=
__VIEWSTATE=%2FwEPDwUKLTk2MDAxNjU3MA9kFgJmD2QWAgIDD2QWDgIFD2QWAgIBDw8WAh4EVGV4dAUfRsO2cmV0YWdzZ3J1cHBlbiBpIEfDtnRlYm9yZyBBQmRkAgcPDxYEHwAFH0bDtnJldGFnc2dydXBwZW4gaSBHw7Z0ZWJvcmcgQUIeC05hdmlnYXRlVXJsBR1%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%2BgWrg%2B8u3EnNPkQGA%3D%3D
__EVENTVALIDATION=%2FwEWFwKGsKOJCgK70ZWTDQLr%2BJWFDQKo1a2oCwKplfT%2BCgLRieqTAwKt6qHvAQK9rKu9AgKh%2F5ODDQKqtpTtDQLvv7CxBALa4vDGBQKCuafwDwKP1ZOjBgKsqdXxCgL6hbmQBwK%2BjaGZDQL%2FqY7cBALml%2FqcBgLYg53pDwL108DhBQLfzPnCAQLBr6dM9cK5UIsGFZ5ocJchTM8CHTFigfk%3D
ctl00%24body%24cmdSave=Spara
ctl00%24body%24txtName=BYGG+%26+ENERGISERVICE+S%C3%96DERT%C3%96RN+AB
ctl00%24body%24txtUserName=5566960836
ctl00%24body%24txtEmail=anonym%40telia.se
ctl00%24body%24txtDepartment=
ctl00%24body%24chkIsActive=on
ctl00%24body%24chkHasStatisticsPerm=on
ctl00%24body%24txtLoginName=5566960836
ctl00%24body%24txtPassword=stackoverflow
ctl00%24body%24chkHasAnnualReportService=on
ctl00%24body%24chkHasCorporationCharterReportService=on
ctl00%24body%24chkHasCertificateOfRegistrationReportService=on
ctl00%24body%24chkHasMonitorService=on
ctl00%24body%24chkHasDigitalSparrkatalogService=on
ctl00%24body%24chkHasPersonkontrollService=on
ctl00%24body%24chkHasCompanyReportService=on
ctl00%24body%24chkHasPersonReportService=on
ctl00%24body%24cbxReportsCompany3=on
ctl00%24body%24cbxReportsPerson3=on
ctl00%24body%24hidNewUser=1

我的脚本正在发送的发布数据

Array
(
    [__EVENTTARGET] => 
    [__EVENTARGUMENT] => 
    [__VIEWSTATE] => 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
    [__EVENTVALIDATION] => /wEWFwKGsKOJCgK70ZWTDQLr+JWFDQKo1a2oCwKplfT+CgLRieqTAwKt6qHvAQK9rKu9AgKh/5ODDQKqtpTtDQLvv7CxBALa4vDGBQKCuafwDwKP1ZOjBgKsqdXxCgL6hbmQBwK+jaGZDQL/qY7cBALml/qcBgLYg53pDwL108DhBQLfzPnCAQLBr6dM9cK5UIsGFZ5ocJchTM8CHTFigfk=
    [ctl00$body$hidNewUser] => 1
    [ctl00$body$cmdSave] => Spara
    [ctl00$body$txtName] => BYGG & ENERGISERVICE SÖDERTÖRN AB
    [ctl00$body$txtUserName] => 5566960836
    [ctl00$body$txtEmail] => anonym@telia.se
    [ctl00$body$txtDepartment] => 
    [ctl00$body$chkIsActive] => 1
    [ctl00$body$chkHasStatisticsPerm] => 1
    [ctl00$body$txtLoginName] => 5566960836
    [ctl00$body$txtPassword] => stackoverflow
    [ctl00$body$chkHasAnnualReportService] => 1
    [ctl00$body$chkHasCorporationCharterReportService] => 1
    [ctl00$body$chkHasCertificateOfRegistrationReportService] => 1
    [ctl00$body$chkHasMonitorService] => 1
    [ctl00$body$chkHasDigitalSparrkatalogService] => 1
    [ctl00$body$chkHasPersonkontrollService] => 1
    [ctl00$body$chkHasCompanyReportService] => 1
    [ctl00$body$chkHasPersonReportService] => 1
    [ctl00$body$cbxReportsCompany3] => 1
    [ctl00$body$cbxReportsPerson3] => 1
)

问题：

哪些客户端差异会触发"视图状态 MAC 验证失败"错误？

（注意：上面的 postdata 以 2 种方式进行了 Bean 操纵，首先我用"stackoverflow"替换了密码，我也用匿名替换了电子邮件地址的用户）