s_mp_sqr
mp_err s_mp_sqr(mp_int *a); /* magnitude square */
if((res = s_mp_sqr(&x)) != MP_OKAY)
if((res = s_mp_sqr(&x)) != MP_OKAY)
if((res = s_mp_sqr(&x)) != MP_OKAY)
if((res = s_mp_sqr(&x)) != MP_OKAY)
if((res = s_mp_sqr(&x)) != MP_OKAY ||
if((res = s_mp_sqr(&x)) != MP_OKAY)