-/*
-* Serialize (to TLS format) an |sct| signature and write it to |out|.
-* If |out| is null, no signature will be output but the length will be returned.
-* If |out| points to a null pointer, a string will be allocated to hold the
-* TLS-format signature. It is the responsibility of the caller to free it.
-* If |out| points to an allocated string, the signature will be written to it.
-* The length of the signature in TLS format will be returned.
-*/
-__owur int i2o_SCT_signature(const SCT *sct, unsigned char **out);
-
-/*
-* Parses an SCT signature in TLS format and populates the |sct| with it.
-* |in| should be a pointer to a string containing the TLS-format signature.
-* |in| will be advanced to the end of the signature if parsing succeeds.
-* |len| should be the length of the signature in |in|.
-* Returns the number of bytes parsed, or a negative integer if an error occurs.
-*/
-__owur int o2i_SCT_signature(SCT *sct, const unsigned char **in, size_t len);
-