sdsa_priv_key
sdsa_priv_key priv;
int sdsa_import_priv_key(sdsa_priv_key *priv, const u8 *p, u16 plen,
int sdsa_compute_pub_from_priv(sdsa_pub_key *pub, const sdsa_priv_key *priv)
int sdsa_sign(const sdsa_priv_key *priv, const u8 *msg, u32 msglen,
ATTRIBUTE_WARN_UNUSED_RET int sdsa_import_priv_key(sdsa_priv_key *priv, const u8 *p, u16 plen,
const sdsa_priv_key *priv);
ATTRIBUTE_WARN_UNUSED_RET int sdsa_sign(const sdsa_priv_key *priv, const u8 *msg, u32 msglen,