/// <summary>
/// This callback function provides authorization in the form of an HMAC session
/// </summary>
static public void PolicySecretCallback2(
PolicyTree policyTree,
TpmPolicySecret ace,
out SessionBase authorizingSession,
out TpmHandle authorizedEntityHandle,
out bool flushAuthEntity)
{
AuthSession s0 = _sharedTpm.StartAuthSessionEx(TpmSe.Hmac, TpmAlgId.Sha1);
authorizingSession = s0;
authorizedEntityHandle = _publicSealedObjectHandle;
flushAuthEntity = true;
}
/// <summary>
/// Called from TpmPolicyNV.
/// </summary>
/// <returns></returns>
internal void ExecutePolicyNvCallback(TpmPolicyNV ace, out TpmHandle authHandle, out TpmHandle nvHandle, out SessionBase authSession)
{
if (PolicyNVCallback == null)
{
Globs.Throw("No policyNV callback installed.");
authHandle = new TpmHandle();
nvHandle = new TpmHandle();
authSession = new AuthSession(new TpmHandle());
return;
}
PolicyNVCallback(this, ace, out authSession, out authHandle, out nvHandle);
}
/// <summary>
/// This callback function provides authorization in plain text
/// </summary>
static public void PolicySecretCallback(
PolicyTree policyTree,
TpmPolicySecret ace,
out SessionBase authorizingSession,
out TpmHandle authorizedEntityHandle,
out bool flushAuthEntity)
{
authorizingSession = _publicAuthorizationValue;
authorizedEntityHandle = _publicSealedObjectHandle;
flushAuthEntity = false;
}
/// <summary>
/// Called from TpmPolicySecret.
/// </summary>
/// <returns></returns>
internal void ExecutePolicySecretCallback(TpmPolicySecret ace, out SessionBase authorizingSession, out TpmHandle authorizedEntityHandle, out bool flushAuthEntity)
{
if (PolicySecretCallback == null)
{
Globs.Throw("No policy secret callback installed.");
authorizingSession = new AuthSession(new TpmHandle());
authorizedEntityHandle = new TpmHandle();
flushAuthEntity = false;
return;
}
PolicySecretCallback(this, ace, out authorizingSession, out authorizedEntityHandle, out flushAuthEntity);
}
/// <summary>
/// Checks if the given reference is a placeholder indicating the type
/// of authorization to be used in command buffer in its stead.
/// </summary>
internal static bool IsPlaceholder(SessionBase s)
{
return s == Default || s == Hmac || s == Pw;
}
/// <summary>
/// Called from TpmPolicyNV.
/// </summary>
/// <returns></returns>
internal void ExecutePolicyNvCallback(TpmPolicyNV ace, out TpmHandle authHandle, out TpmHandle nvHandle, out SessionBase authSession)
{
if (PolicyNVCallback == null)
{
Globs.Throw("No policyNV callback installed.");
authHandle = new TpmHandle();
nvHandle = new TpmHandle();
authSession = new AuthSession(new TpmHandle());
return;
}
PolicyNVCallback(this, ace, out authSession, out authHandle, out nvHandle);
}
/// <summary>
/// Called from TpmPolicyNV.
/// </summary>
/// <returns></returns>
internal void ExecutePolicyNvCallback(TpmPolicyNV ace, out TpmHandle authHandle, out TpmHandle nvHandle, out SessionBase authSession)
{
if (PolicyNVCallback == null)
{
throw new Exception("No policyNV callback installed.");
}
PolicyNVCallback(this, ace, out authSession, out authHandle, out nvHandle);
}
/// <summary>
/// Checks if the given reference is a placeholder indicating the type
/// of authorization to be used in command buffer in its stead.
/// </summary>
internal static bool IsPlaceholder(SessionBase s)
{
return(s == Default || s == Hmac || s == Pw);
}
