Lines Matching defs:num
199 fe25519 t, chk, num, den, den2, den4, den6;
203 fe25519_square(&num, &r->y); /* x = y^2 */
204 fe25519_mul(&den, &num, &ge25519_ecd); /* den = dy^2 */
205 fe25519_sub(&num, &num, &r->z); /* x = y^2-1 */
208 /* Computation of sqrt(num/den) */
209 /* 1.: computation of num^((p-5)/8)*den^((7p-35)/8) = (num*den^7)^((p-5)/8) */
213 fe25519_mul(&t, &den6, &num);
217 /* 2. computation of r->x = t * num * den^3 */
218 fe25519_mul(&t, &t, &num);
226 if (!fe25519_iseq_vartime(&chk, &num))
232 if (!fe25519_iseq_vartime(&chk, &num))