@class NSMutableData; @interface _MFSecCMSEncoder : MFBufferedDataConsumer { struct SecCmsEncoderStr { } *_encoder; struct SecCmsMessageStr { } *_message; NSMutableData *_singleShot; } @property (readonly, nonatomic) int lastSecCMSError; - (long long)appendData:(id)a0; - (void)dealloc; - (void)done; - (id)data; - (void)_appendBytes:(const void *)a0 length:(unsigned long long)a1; - (id)initForEncryptionWithCompositionSpecification:(id)a0 error:(id *)a1; - (id)initForSigningWithSender:(id)a0 compositionSpecification:(id)a1 error:(id *)a2; @end