1. vb.net webbrowser 访问https站点，弹证书安全
在Net.WebRequest.Create 之前,尝试一下用下面代码,呵呵,只是网络搜到的,还没有验证.
System.Net.ServicePointManager. = New System.Net.Security.(AddressOf )
Public Shared Function (ByVal sender As Object, ByVal certificate As System.Security.Cryptography.X509Certificates.X509Certificate, ByVal chain As System.Security.Cryptography.X509Certificates.X509Chain, ByVal sslPolicyErrors As Net.Security.SslPolicyErrors) As Boolean
Return True
End Function
2. webbrowser 证书错误怎么解决
1、抄
点击系统时间一看，果真是日期时间不对。点击更改日期和时间设置。
2、选择
Internet
时间页签，然后点击更改设置按钮。
3、勾选与Internet时间服务器同步，然后点击立即更新按钮，最后确定。
4、时间同步成功以后，再次打刚才的网站就再也没有安全证书有问题的提示了。OK，一切正常，问题解决了。
3. 怎样给WebBrowser通过InternetSetOption选择证书
运行错误，错误码：
#define ERROR_INTERNET_INCORRECT_HANDLE_TYPE (INTERNET_ERROR_BASE + 18)
代码如下：
LPWSTR pswzFirstCert = L"sss";// Subject of the first
// certificate.
HCERTSTORE hSystemStore; // The system store handle
PCCERT_CONTEXT pDesiredCert;
pDesiredCert = NULL;
if(hSystemStore = CertOpenStore(
CERT_STORE_PROV_SYSTEM, // The system store will be a
// virtual store.
0, // Encoding type not need with this PROV.
NULL, // Accept the default HCRYPTPROV.
CERT_SYSTEM_STORE_CURRENT_USER,
L"ROOT")) // System store name.//MY CA ROOT SPC 四种
{
printf("Opened the MY system store. \n");
}
else
{
}
//-------------------------------------------------------------------
// Get a certificate that has the string "Full Test Cert" in its subject.
if(pDesiredCert)
CertFreeCertificateContext(pDesiredCert);
if(pDesiredCert=CertFindCertificateInStore(
hSystemStore,
X509_ASN_ENCODING, // Use X509_ASN_ENCODING.
0, // No dwFlags needed.
CERT_FIND_SUBJECT_STR, // Find a certificate with a
// subject that matches the string
// in the next parameter.
pswzFirstCert, // The Unicode string to be found
// in a certificate's subject.
NULL)) // NULL is used so that the
// search will begin at the
// beginning of the certificate
// store.
{
printf("The %S certificate was found. \n",pswzFirstCert);
}
else
{
printf("The %S certificate was not found. \n",pswzFirstCert);
}
if(hSystemStore)
CertCloseStore(hSystemStore, CERT_CLOSE_STORE_CHECK_FLAG);
if( InternetSetOption (0, INTERNET_OPTION_CLIENT_CERT_CONTEXT,
(LPVOID)pDesiredCert, sizeof (CERT_CONTEXT) ) == FALSE )
{
int i = GetLastError();
printf("InternetSetOption failed with error %d. \n",i);
}
if(pDesiredCert) CertFreeCertificateContext(pDesiredCert);
4. webbrowser 证书错误怎么解决
1、 点击系统时间一看，果真是日期时间不对。点击更改日期和时间设置。
2、选版择 Internet 时间页签，然后点击更改设权置按钮。
3、勾选与Internet时间服务器同步，然后点击立即更新按钮，最后确定。
4、时间同步成功以后，再次打刚才的网站就再也没有安全证书有问题的提示了。OK，一切正常，问题解决了。