(Mono C#) Find a Certificate by it's SHA-1 Thumbprint

Finds a certificate by it's SHA-1 hex thumbprint. Parts of this example are specific to Windows because it searches the Windows Current User certificate store.

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Chilkat.CertStore certStore = new Chilkat.CertStore();

string thumbprint = "12c1dd8015f3f03f7b1fa619dc24e2493ca8b4b2";

// This part of the example is specific to Windows because it is opening the Windows Current-User certificate store.
bool bReadOnly = true;
bool success = certStore.OpenCurrentUserStore(bReadOnly);
if (success != true) {
    Debug.WriteLine(certStore.LastErrorText);
    return;
}

// Find the certificate with the desired thumbprint
Chilkat.Cert cert = certStore.FindCertBySha1Thumbprint(thumbprint);
if (certStore.LastMethodSuccess != true) {
    Debug.WriteLine("Failed to find the certificate.");
    return;
}

Debug.WriteLine("Found: " + cert.SubjectCN);

// -------------------------------------------------------------------------------------
// Alternatively, one could load a certificate store object with certs from a PEM file,
// and do the same thing..
Chilkat.CertStore certStorePem = new Chilkat.CertStore();

success = certStorePem.LoadPemFile("pemFiles/certificates.pem");
if (success != true) {
    Debug.WriteLine(certStorePem.LastErrorText);
    return;
}

cert = certStorePem.FindCertBySha1Thumbprint(thumbprint);
if (certStorePem.LastMethodSuccess != true) {
    Debug.WriteLine("Failed to find the certificate.");
    return;
}

Debug.WriteLine("Found: " + cert.SubjectCN);