merge from main

--HG--
branch : fuzz

1 files changed, 0 insertions, 228 deletions

diff --git a/libtommath/bn_mp_toom_sqr.c b/libtommath/bn_mp_toom_sqr.c
deleted file mode 100644
index 0a38192..0000000
--- a/libtommath/bn_mp_toom_sqr.c
+++ /dev/null
@@ -1,228 +0,0 @@
-#include <tommath_private.h>
-#ifdef BN_MP_TOOM_SQR_C
-/* LibTomMath, multiple-precision integer library -- Tom St Denis
- *
- * LibTomMath is a library that provides multiple-precision
- * integer arithmetic as well as number theoretic functionality.
- *
- * The library was designed directly after the MPI library by
- * Michael Fromberger but has been written from scratch with
- * additional optimizations in place.
- *
- * The library is free for all purposes without any express
- * guarantee it works.
- *
- * Tom St Denis, tstdenis82@gmail.com, http://libtom.org
- */
-
-/* squaring using Toom-Cook 3-way algorithm */
-int
-mp_toom_sqr(mp_int *a, mp_int *b)
-{
-    mp_int w0, w1, w2, w3, w4, tmp1, a0, a1, a2;
-    int res, B;
-
-    /* init temps */
-    if ((res = mp_init_multi(&w0, &w1, &w2, &w3, &w4, &a0, &a1, &a2, &tmp1, NULL)) != MP_OKAY) {
-       return res;
-    }
-
-    /* B */
-    B = a->used / 3;
-
-    /* a = a2 * B**2 + a1 * B + a0 */
-    if ((res = mp_mod_2d(a, DIGIT_BIT * B, &a0)) != MP_OKAY) {
-       goto ERR;
-    }
-
-    if ((res = mp_copy(a, &a1)) != MP_OKAY) {
-       goto ERR;
-    }
-    mp_rshd(&a1, B);
-    if ((res = mp_mod_2d(&a1, DIGIT_BIT * B, &a1)) != MP_OKAY) {
-       goto ERR;
-    }
-
-    if ((res = mp_copy(a, &a2)) != MP_OKAY) {
-       goto ERR;
-    }
-    mp_rshd(&a2, B*2);
-
-    /* w0 = a0*a0 */
-    if ((res = mp_sqr(&a0, &w0)) != MP_OKAY) {
-       goto ERR;
-    }
-
-    /* w4 = a2 * a2 */
-    if ((res = mp_sqr(&a2, &w4)) != MP_OKAY) {
-       goto ERR;
-    }
-
-    /* w1 = (a2 + 2(a1 + 2a0))**2 */
-    if ((res = mp_mul_2(&a0, &tmp1)) != MP_OKAY) {
-       goto ERR;
-    }
-    if ((res = mp_add(&tmp1, &a1, &tmp1)) != MP_OKAY) {
-       goto ERR;
-    }
-    if ((res = mp_mul_2(&tmp1, &tmp1)) != MP_OKAY) {
-       goto ERR;
-    }
-    if ((res = mp_add(&tmp1, &a2, &tmp1)) != MP_OKAY) {
-       goto ERR;
-    }
-
-    if ((res = mp_sqr(&tmp1, &w1)) != MP_OKAY) {
-       goto ERR;
-    }
-
-    /* w3 = (a0 + 2(a1 + 2a2))**2 */
-    if ((res = mp_mul_2(&a2, &tmp1)) != MP_OKAY) {
-       goto ERR;
-    }
-    if ((res = mp_add(&tmp1, &a1, &tmp1)) != MP_OKAY) {
-       goto ERR;
-    }
-    if ((res = mp_mul_2(&tmp1, &tmp1)) != MP_OKAY) {
-       goto ERR;
-    }
-    if ((res = mp_add(&tmp1, &a0, &tmp1)) != MP_OKAY) {
-       goto ERR;
-    }
-
-    if ((res = mp_sqr(&tmp1, &w3)) != MP_OKAY) {
-       goto ERR;
-    }
-
-
-    /* w2 = (a2 + a1 + a0)**2 */
-    if ((res = mp_add(&a2, &a1, &tmp1)) != MP_OKAY) {
-       goto ERR;
-    }
-    if ((res = mp_add(&tmp1, &a0, &tmp1)) != MP_OKAY) {
-       goto ERR;
-    }
-    if ((res = mp_sqr(&tmp1, &w2)) != MP_OKAY) {
-       goto ERR;
-    }
-
-    /* now solve the matrix
-
-       0  0  0  0  1
-       1  2  4  8  16
-       1  1  1  1  1
-       16 8  4  2  1
-       1  0  0  0  0
-
-       using 12 subtractions, 4 shifts, 2 small divisions and 1 small multiplication.
-     */
-
-    /* r1 - r4 */
-    if ((res = mp_sub(&w1, &w4, &w1)) != MP_OKAY) {
-       goto ERR;
-    }
-    /* r3 - r0 */
-    if ((res = mp_sub(&w3, &w0, &w3)) != MP_OKAY) {
-       goto ERR;
-    }
-    /* r1/2 */
-    if ((res = mp_div_2(&w1, &w1)) != MP_OKAY) {
-       goto ERR;
-    }
-    /* r3/2 */
-    if ((res = mp_div_2(&w3, &w3)) != MP_OKAY) {
-       goto ERR;
-    }
-    /* r2 - r0 - r4 */
-    if ((res = mp_sub(&w2, &w0, &w2)) != MP_OKAY) {
-       goto ERR;
-    }
-    if ((res = mp_sub(&w2, &w4, &w2)) != MP_OKAY) {
-       goto ERR;
-    }
-    /* r1 - r2 */
-    if ((res = mp_sub(&w1, &w2, &w1)) != MP_OKAY) {
-       goto ERR;
-    }
-    /* r3 - r2 */
-    if ((res = mp_sub(&w3, &w2, &w3)) != MP_OKAY) {
-       goto ERR;
-    }
-    /* r1 - 8r0 */
-    if ((res = mp_mul_2d(&w0, 3, &tmp1)) != MP_OKAY) {
-       goto ERR;
-    }
-    if ((res = mp_sub(&w1, &tmp1, &w1)) != MP_OKAY) {
-       goto ERR;
-    }
-    /* r3 - 8r4 */
-    if ((res = mp_mul_2d(&w4, 3, &tmp1)) != MP_OKAY) {
-       goto ERR;
-    }
-    if ((res = mp_sub(&w3, &tmp1, &w3)) != MP_OKAY) {
-       goto ERR;
-    }
-    /* 3r2 - r1 - r3 */
-    if ((res = mp_mul_d(&w2, 3, &w2)) != MP_OKAY) {
-       goto ERR;
-    }
-    if ((res = mp_sub(&w2, &w1, &w2)) != MP_OKAY) {
-       goto ERR;
-    }
-    if ((res = mp_sub(&w2, &w3, &w2)) != MP_OKAY) {
-       goto ERR;
-    }
-    /* r1 - r2 */
-    if ((res = mp_sub(&w1, &w2, &w1)) != MP_OKAY) {
-       goto ERR;
-    }
-    /* r3 - r2 */
-    if ((res = mp_sub(&w3, &w2, &w3)) != MP_OKAY) {
-       goto ERR;
-    }
-    /* r1/3 */
-    if ((res = mp_div_3(&w1, &w1, NULL)) != MP_OKAY) {
-       goto ERR;
-    }
-    /* r3/3 */
-    if ((res = mp_div_3(&w3, &w3, NULL)) != MP_OKAY) {
-       goto ERR;
-    }
-
-    /* at this point shift W[n] by B*n */
-    if ((res = mp_lshd(&w1, 1*B)) != MP_OKAY) {
-       goto ERR;
-    }
-    if ((res = mp_lshd(&w2, 2*B)) != MP_OKAY) {
-       goto ERR;
-    }
-    if ((res = mp_lshd(&w3, 3*B)) != MP_OKAY) {
-       goto ERR;
-    }
-    if ((res = mp_lshd(&w4, 4*B)) != MP_OKAY) {
-       goto ERR;
-    }
-
-    if ((res = mp_add(&w0, &w1, b)) != MP_OKAY) {
-       goto ERR;
-    }
-    if ((res = mp_add(&w2, &w3, &tmp1)) != MP_OKAY) {
-       goto ERR;
-    }
-    if ((res = mp_add(&w4, &tmp1, &tmp1)) != MP_OKAY) {
-       goto ERR;
-    }
-    if ((res = mp_add(&tmp1, b, b)) != MP_OKAY) {
-       goto ERR;
-    }
-
-ERR:
-    mp_clear_multi(&w0, &w1, &w2, &w3, &w4, &a0, &a1, &a2, &tmp1, NULL);
-    return res;
-}
-
-#endif
-
-/* ref:         $Format:%D$ */
-/* git commit:  $Format:%H$ */
-/* commit time: $Format:%ai$ */