ECFSDSA_SIGLEN
#define ECFSDSA_MAX_SIGLEN ECFSDSA_SIGLEN(CURVES_MAX_P_BIT_LEN, \
MUST_HAVE((siglen == ECFSDSA_SIGLEN(p_bit_len, q_bit_len)), ret, err);
MUST_HAVE((siglen == ECFSDSA_SIGLEN(p_bit_len, q_bit_len)), ret, err);
(*siglen) = (u8)ECFSDSA_SIGLEN(p_bit_len, q_bit_len);
MUST_HAVE((siglen == ECFSDSA_SIGLEN(p_bit_len, q_bit_len)), ret, err);
MUST_HAVE((siglen == ECFSDSA_SIGLEN(p_bit_len, q_bit_len)), ret, err);