internal KeyContainerPermission BuildKeyContainerPermission(KeyContainerPermissionFlags flags)
{
KeyContainerPermission permission = null;
if (this.IsEphemeral)
{
return(permission);
}
string keyContainerName = null;
string str2 = null;
try
{
keyContainerName = this.KeyName;
str2 = NCryptNative.GetPropertyAsString(this.m_kspHandle, "Name", CngPropertyOptions.None);
}
catch (CryptographicException)
{
}
if (keyContainerName != null)
{
KeyContainerPermissionAccessEntry accessEntry = new KeyContainerPermissionAccessEntry(keyContainerName, flags)
{
ProviderName = str2
};
permission = new KeyContainerPermission(KeyContainerPermissionFlags.NoFlags);
permission.AccessEntries.Add(accessEntry);
return(permission);
}
return(new KeyContainerPermission(flags));
}
internal string GetCurveName()
{
if (IsECNamedCurve())
{
return(NCryptNative.GetPropertyAsString(
m_keyHandle,
KeyPropertyName.ECCCurveName,
CngPropertyOptions.None));
}
// Use hard-coded values (for use with pre-Win10 APIs)
return(GetECSpecificCurveName());
}
internal KeyContainerPermission BuildKeyContainerPermission(KeyContainerPermissionFlags flags)
{
Contract.Ensures(Contract.Result <KeyContainerPermission>() != null || IsEphemeral);
Contract.Assert(m_keyHandle != null);
Contract.Assert(m_kspHandle != null);
KeyContainerPermission permission = null;
if (!IsEphemeral)
{
// Try to get the name of the key and ksp to demand for this specific instance
string keyName = null;
string kspName = null;
try {
keyName = KeyName;
kspName = NCryptNative.GetPropertyAsString(m_kspHandle,
NCryptNative.ProviderPropertyName.Name,
CngPropertyOptions.None);
}
catch (CryptographicException) { /* This may have been an imported ephemeral key */ }
if (keyName != null)
{
KeyContainerPermissionAccessEntry access = new KeyContainerPermissionAccessEntry(keyName, flags);
access.ProviderName = kspName;
permission = new KeyContainerPermission(KeyContainerPermissionFlags.NoFlags);
permission.AccessEntries.Add(access);
}
else
{
permission = new KeyContainerPermission(flags);
}
}
return(permission);
}
