///////////////////////////////////////////////////////////////////////
#region Private Trusted Certificate Support Methods
private static bool IsTrustedCertificate(
X509Certificate certificate
)
{
bool result = false;
string name = null;
//
// NOTE: Make sure the certificate public key matches what
// we expect it to be for our own software updates.
//
if (certificate != null)
{
//
// NOTE: Grab the public key of the certificate.
//
byte[] certificatePublicKey = certificate.GetPublicKey();
if ((certificatePublicKey != null) &&
(certificatePublicKey.Length > 0))
{
lock (syncRoot) /* TRANSACTIONAL */
{
//
// NOTE: Compare the public key of the certificate to
// one(s) that we trust for our software updates.
//
if (!result &&
(PublicKey1 != null) && (PublicKey1.Length > 0) &&
ArrayOps.Equals(certificatePublicKey, PublicKey1))
{
name = "PublicKey1";
result = true;
}
if (!result &&
(PublicKey2 != null) && (PublicKey2.Length > 0) &&
ArrayOps.Equals(certificatePublicKey, PublicKey2))
{
name = "PublicKey2";
result = true;
}
if (!result &&
(PublicKey3 != null) && (PublicKey3.Length > 0) &&
ArrayOps.Equals(certificatePublicKey, PublicKey3))
{
name = "PublicKey3";
result = true;
}
if (!result &&
(PublicKey4 != null) && (PublicKey4.Length > 0) &&
ArrayOps.Equals(certificatePublicKey, PublicKey4))
{
name = "PublicKey4";
result = true;
}
//
// NOTE: Compare the public key of the certificate to
// the auxiliary one that we trust for use by
// third-party applications and plugins.
//
if (!result &&
(PublicKey5 != null) && (PublicKey5.Length > 0) &&
ArrayOps.Equals(certificatePublicKey, PublicKey5))
{
name = "PublicKey5";
result = true;
}
}
}
}
//
// NOTE: Report this trust result to any trace listeners.
//
TraceOps.DebugTrace(String.Format(
"IsTrustedCertificate: certificate = {0}, name = {1}, " +
"result = {2}", FormatOps.Certificate(certificate, false,
true), FormatOps.WrapOrNull(name), result),
typeof(UpdateOps).Name, TracePriority.SecurityDebug);
return(result);
}