second-round version of SQIsign

Co-authored-by: Marius A. Aardal <marius.andre.aardal@gmail.com>
Co-authored-by: Gora Adj <gora.adj@tii.ae>
Co-authored-by: Diego F. Aranha <dfaranha@cs.au.dk>
Co-authored-by: Andrea Basso <sqisign@andreabasso.com>
Co-authored-by: Isaac Andrés Canales Martínez <icanalesm0500@gmail.com>
Co-authored-by: Jorge Chávez-Saab <jorgechavezsaab@gmail.com>
Co-authored-by: Maria Corte-Real Santos <mariascrsantos98@gmail.com>
Co-authored-by: Luca De Feo <github@defeo.lu>
Co-authored-by: Max Duparc <max.duparc@epfl.ch>
Co-authored-by: Jonathan Komada Eriksen <jonathan.eriksen97@gmail.com>
Co-authored-by: Décio Luiz Gazzoni Filho <decio@decpp.net>
Co-authored-by: Basil Hess <bhe@zurich.ibm.com>
Co-authored-by: Antonin Leroux <antonin.leroux@polytechnique.org>
Co-authored-by: Patrick Longa <plonga@microsoft.com>
Co-authored-by: Luciano Maino <mainoluciano.96@gmail.com>
Co-authored-by: Michael Meyer <michael@random-oracles.org>
Co-authored-by: Hiroshi Onuki <onuki@mist.i.u-tokyo.ac.jp>
Co-authored-by: Lorenz Panny <lorenz@yx7.cc>
Co-authored-by: Giacomo Pope <giacomopope@gmail.com>
Co-authored-by: Krijn Reijnders <reijnderskrijn@gmail.com>
Co-authored-by: Damien Robert <damien.robert@inria.fr>
Co-authored-by: Francisco Rodríguez-Henriquez <francisco.rodriguez@tii.ae>
Co-authored-by: Sina Schaeffler <sschaeffle@student.ethz.ch>
Co-authored-by: Benjamin Wesolowski <benjamin.wesolowski@ens-lyon.fr>

src/ec/ref/lvlx/test/test_extras.h

@@ -0,0 +1,43 @@
+
+#ifndef TEST_EXTRAS_H
+#define TEST_EXTRAS_H
+
+#include <assert.h>
+#include <time.h>
+#include <stdlib.h>
+#include <encoded_sizes.h>
+#include <ec.h>
+#include <fp.h>
+#include <fp2.h>
+
+#define PASSED 0
+#define FAILED 1
+
+// Generating a pseudo-random field element in [0, p-1]
+void fp_random_test(fp_t *a);
+
+// Generating a pseudo-random element in GF(p^2)
+void fp2_random_test(fp2_t *a);
+
+// Generating a random projective x-only point
+void ec_random_test(ec_point_t *P, const ec_curve_t *curve);
+
+// Generating a random projective x-only point and normalizing it
+void ec_random_normalized_test(ec_point_t *P, const ec_curve_t *curve);
+
+// Point difference
+void projective_difference_point(ec_point_t *PQ, const ec_point_t *P, const ec_point_t *Q, const ec_curve_t *curve);
+
+// xDBL
+void xDBL(ec_point_t *Q, const ec_point_t *P, const ec_point_t *AC);
+
+// Double-and-add
+extern void xDBLADD(ec_point_t *R,
+                    ec_point_t *S,
+                    const ec_point_t *P,
+                    const ec_point_t *Q,
+                    const ec_point_t *PQ,
+                    const ec_point_t *A24,
+                    const bool A24_normalized);
+
+#endif