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(C# UWP/WinRT) OCSP Check Domain's Server Certificate Revocation Status

Sends an OCSP request to determine the revocation status for an SSL server certificate.

Note: This example requires Chilkat v9.5.0.84 or greater.

Chilkat Universal Windows Platform (UWP) / WinRT Downloads

Chilkat for the Universal Windows Platform (UWP)

// This example requires the Chilkat API to have been previously unlocked.
// See Global Unlock Sample for sample code.

Chilkat.Http http = new Chilkat.Http();

// Check the revocation status of the SSL server certificate for chilkatsoft.com
int status = await http.OcspCheckAsync("chilkatsoft.com",443);

Debug.WriteLine("chilkatsoft.com status = " + Convert.ToString(status));

// The status can have 4 values:
// -1: Unable to check because of an error.
//  0: Good
//  1: Revoked
//  2: Unknown

if (status < 0) {
    Debug.WriteLine(http.LastErrorText);
}

// Now check the status for a revoked server certificate.
status = await http.OcspCheckAsync("revoked.badssl.com",443);

Debug.WriteLine("revoked.badssl.com status = " + Convert.ToString(status));

 

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