extern const CFStringRef kTSAContextKeyURL; // CFURLRef
extern const CFStringRef kTSAContextKeyNoCerts; // CFBooleanRef
-OSStatus SecCmsTSADefaultCallback(CFTypeRef context, void *messageImprint, uint64_t nonce, CSSM_DATA *signedDERBlob);
+OSStatus SecCmsTSADefaultCallback(CFTypeRef context, void *messageImprint, uint64_t nonce, CSSM_DATA *signedDERBlob) DEPRECATED_IN_MAC_OS_X_VERSION_10_7_AND_LATER;
CFMutableDictionaryRef SecCmsTSAGetDefaultContext(CFErrorRef *error);
void SecCmsMessageSetTSAContext(SecCmsMessageRef cmsg, CFTypeRef tsaContext);