internal static SecurityKey ResolveSecurityKey(SecurityKeyIdentifier ski, SecurityTokenResolver tokenResolver)
{
if (ski == null)
{
throw DiagnosticUtility.ExceptionUtility.ThrowHelperArgumentNull("ski");
}
if (tokenResolver != null)
{
for (int i = 0; i < ski.Count; ++i)
{
SecurityKey key = null;
if (tokenResolver.TryResolveSecurityKey(ski[i], out key))
{
return(key);
}
}
}
if (ski.CanCreateKey)
{
return(ski.CreateKey());
}
return(null);
}
/// <summary>
/// Attempts to resolve the _securityKeyIdentifier into a securityKey. If successful, the private _securityKey is set.
/// Uses the tokenresolver that was passed in, it may be the case a keyIdentifier can
/// generate a securityKey. A RSA key can generate a key with just the public part.
/// </summary>
/// <returns>void</returns>
void ResolveKey()
{
if (_securityKeyIdentifier == null)
{
throw DiagnosticUtility.ExceptionUtility.ThrowHelperArgumentNull("ski");
}
if (_securityKey == null)
{
lock (_keyLock)
{
if (_securityKey == null)
{
if (_securityTokenResolver != null)
{
for (int i = 0; i < _securityKeyIdentifier.Count; ++i)
{
if (_securityTokenResolver.TryResolveSecurityKey(_securityKeyIdentifier[i], out _securityKey))
{
return;
}
}
}
// most likely a public key, do this last
if (_securityKeyIdentifier.CanCreateKey)
{
_securityKey = _securityKeyIdentifier.CreateKey();
return;
}
throw DiagnosticUtility.ExceptionUtility.ThrowHelper(
new SecurityTokenException(SR.GetString(SR.ID2080,
_securityTokenResolver == null ? "null" : _securityTokenResolver.ToString(),
_securityKeyIdentifier == null ? "null" : _securityKeyIdentifier.ToString())), System.Diagnostics.TraceEventType.Error);
}
}
}
}
