ECDH: Add VS2010 support files for Everest Curve25519
diff --git a/3rdparty/everest/include/everest/vs2010/Hacl_Curve25519.h b/3rdparty/everest/include/everest/vs2010/Hacl_Curve25519.h
new file mode 100644
index 0000000..27ebe07
--- /dev/null
+++ b/3rdparty/everest/include/everest/vs2010/Hacl_Curve25519.h
@@ -0,0 +1,21 @@
+/* Copyright (c) INRIA and Microsoft Corporation. All rights reserved.
+ Licensed under the Apache 2.0 License. */
+
+/* This file was generated by KreMLin <https://github.com/FStarLang/kremlin>
+ * KreMLin invocation: /mnt/e/everest/verify/kremlin/krml -fc89 -fparentheses -fno-shadow -header /mnt/e/everest/verify/hdrcLh -minimal -fc89 -fparentheses -fno-shadow -header /mnt/e/everest/verify/hdrcLh -minimal -I /mnt/e/everest/verify/hacl-star/code/lib/kremlin -I /mnt/e/everest/verify/kremlin/kremlib/compat -I /mnt/e/everest/verify/hacl-star/specs -I /mnt/e/everest/verify/hacl-star/specs/old -I . -ccopt -march=native -verbose -ldopt -flto -tmpdir x25519-c -I ../bignum -bundle Hacl.Curve25519=* -minimal -add-include "kremlib.h" -skip-compilation x25519-c/out.krml -o x25519-c/Hacl_Curve25519.c
+ * F* version: 059db0c8
+ * KreMLin version: 916c37ac
+ */
+
+
+
+#ifndef __Hacl_Curve25519_H
+#define __Hacl_Curve25519_H
+
+
+#include "kremlib.h"
+
+void Hacl_Curve25519_crypto_scalarmult(uint8_t *mypublic, uint8_t *secret, uint8_t *basepoint);
+
+#define __Hacl_Curve25519_H_DEFINED
+#endif
diff --git a/3rdparty/everest/include/everest/vs2010/inttypes.h b/3rdparty/everest/include/everest/vs2010/inttypes.h
new file mode 100644
index 0000000..d53f87f
--- /dev/null
+++ b/3rdparty/everest/include/everest/vs2010/inttypes.h
@@ -0,0 +1,36 @@
+/*
+ * Custom inttypes.h for VS2010 KreMLin requires these definitions,
+ * but VS2010 doesn't provide them.
+ *
+ * Copyright 2016-2018 INRIA and Microsoft Corporation
+ * SPDX-License-Identifier: Apache-2.0
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License"); you may
+ * not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
+ * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ *
+ * This file is part of mbed TLS (https://tls.mbed.org)
+ */
+
+#ifndef _INTTYPES_H_VS2010
+#define _INTTYPES_H_VS2010
+
+#include <stdint.h>
+
+#ifdef _MSC_VER
+#define inline __inline
+#endif
+
+/* VS2010 unsigned long == 8 bytes */
+
+#define PRIu64 "I64u"
+
+#endif
diff --git a/3rdparty/everest/include/everest/vs2010/stdbool.h b/3rdparty/everest/include/everest/vs2010/stdbool.h
new file mode 100644
index 0000000..5b7039c
--- /dev/null
+++ b/3rdparty/everest/include/everest/vs2010/stdbool.h
@@ -0,0 +1,31 @@
+/*
+ * Custom stdbool.h for VS2010 KreMLin requires these definitions,
+ * but VS2010 doesn't provide them.
+ *
+ * Copyright 2016-2018 INRIA and Microsoft Corporation
+ * SPDX-License-Identifier: Apache-2.0
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License"); you may
+ * not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
+ * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ *
+ * This file is part of mbed TLS (https://tls.mbed.org)
+ */
+
+#ifndef _STDBOOL_H_VS2010
+#define _STDBOOL_H_VS2010
+
+typedef int bool;
+
+static bool true = 1;
+static bool false = 0;
+
+#endif
diff --git a/3rdparty/everest/library/vs2010/Hacl_Curve25519.c b/3rdparty/everest/library/vs2010/Hacl_Curve25519.c
new file mode 100644
index 0000000..babebe4
--- /dev/null
+++ b/3rdparty/everest/library/vs2010/Hacl_Curve25519.c
@@ -0,0 +1,805 @@
+/* Copyright (c) INRIA and Microsoft Corporation. All rights reserved.
+ Licensed under the Apache 2.0 License. */
+
+/* This file was generated by KreMLin <https://github.com/FStarLang/kremlin>
+ * KreMLin invocation: /mnt/e/everest/verify/kremlin/krml -fc89 -fparentheses -fno-shadow -header /mnt/e/everest/verify/hdrcLh -minimal -fc89 -fparentheses -fno-shadow -header /mnt/e/everest/verify/hdrcLh -minimal -I /mnt/e/everest/verify/hacl-star/code/lib/kremlin -I /mnt/e/everest/verify/kremlin/kremlib/compat -I /mnt/e/everest/verify/hacl-star/specs -I /mnt/e/everest/verify/hacl-star/specs/old -I . -ccopt -march=native -verbose -ldopt -flto -tmpdir x25519-c -I ../bignum -bundle Hacl.Curve25519=* -minimal -add-include "kremlib.h" -skip-compilation x25519-c/out.krml -o x25519-c/Hacl_Curve25519.c
+ * F* version: 059db0c8
+ * KreMLin version: 916c37ac
+ */
+
+
+#include "Hacl_Curve25519.h"
+
+extern uint64_t FStar_UInt64_eq_mask(uint64_t x0, uint64_t x1);
+
+extern uint64_t FStar_UInt64_gte_mask(uint64_t x0, uint64_t x1);
+
+extern FStar_UInt128_uint128
+FStar_UInt128_add(FStar_UInt128_uint128 x0, FStar_UInt128_uint128 x1);
+
+extern FStar_UInt128_uint128
+FStar_UInt128_add_mod(FStar_UInt128_uint128 x0, FStar_UInt128_uint128 x1);
+
+extern FStar_UInt128_uint128
+FStar_UInt128_logand(FStar_UInt128_uint128 x0, FStar_UInt128_uint128 x1);
+
+extern FStar_UInt128_uint128 FStar_UInt128_shift_right(FStar_UInt128_uint128 x0, uint32_t x1);
+
+extern FStar_UInt128_uint128 FStar_UInt128_uint64_to_uint128(uint64_t x0);
+
+extern uint64_t FStar_UInt128_uint128_to_uint64(FStar_UInt128_uint128 x0);
+
+extern FStar_UInt128_uint128 FStar_UInt128_mul_wide(uint64_t x0, uint64_t x1);
+
+static void Hacl_Bignum_Modulo_carry_top(uint64_t *b)
+{
+ uint64_t b4 = b[4U];
+ uint64_t b0 = b[0U];
+ uint64_t b4_ = b4 & (uint64_t)0x7ffffffffffffU;
+ uint64_t b0_ = b0 + (uint64_t)19U * (b4 >> (uint32_t)51U);
+ b[4U] = b4_;
+ b[0U] = b0_;
+}
+
+inline static void
+Hacl_Bignum_Fproduct_copy_from_wide_(uint64_t *output, FStar_UInt128_uint128 *input)
+{
+ uint32_t i;
+ for (i = (uint32_t)0U; i < (uint32_t)5U; i = i + (uint32_t)1U)
+ {
+ FStar_UInt128_uint128 xi = input[i];
+ output[i] = FStar_UInt128_uint128_to_uint64(xi);
+ }
+}
+
+inline static void
+Hacl_Bignum_Fproduct_sum_scalar_multiplication_(
+ FStar_UInt128_uint128 *output,
+ uint64_t *input,
+ uint64_t s
+)
+{
+ uint32_t i;
+ for (i = (uint32_t)0U; i < (uint32_t)5U; i = i + (uint32_t)1U)
+ {
+ FStar_UInt128_uint128 xi = output[i];
+ uint64_t yi = input[i];
+ output[i] = FStar_UInt128_add_mod(xi, FStar_UInt128_mul_wide(yi, s));
+ }
+}
+
+inline static void Hacl_Bignum_Fproduct_carry_wide_(FStar_UInt128_uint128 *tmp)
+{
+ uint32_t i;
+ for (i = (uint32_t)0U; i < (uint32_t)4U; i = i + (uint32_t)1U)
+ {
+ uint32_t ctr = i;
+ FStar_UInt128_uint128 tctr = tmp[ctr];
+ FStar_UInt128_uint128 tctrp1 = tmp[ctr + (uint32_t)1U];
+ uint64_t r0 = FStar_UInt128_uint128_to_uint64(tctr) & (uint64_t)0x7ffffffffffffU;
+ FStar_UInt128_uint128 c = FStar_UInt128_shift_right(tctr, (uint32_t)51U);
+ tmp[ctr] = FStar_UInt128_uint64_to_uint128(r0);
+ tmp[ctr + (uint32_t)1U] = FStar_UInt128_add(tctrp1, c);
+ }
+}
+
+inline static void Hacl_Bignum_Fmul_shift_reduce(uint64_t *output)
+{
+ uint64_t tmp = output[4U];
+ uint64_t b0;
+ {
+ uint32_t i;
+ for (i = (uint32_t)0U; i < (uint32_t)4U; i = i + (uint32_t)1U)
+ {
+ uint32_t ctr = (uint32_t)5U - i - (uint32_t)1U;
+ uint64_t z = output[ctr - (uint32_t)1U];
+ output[ctr] = z;
+ }
+ }
+ output[0U] = tmp;
+ b0 = output[0U];
+ output[0U] = (uint64_t)19U * b0;
+}
+
+static void
+Hacl_Bignum_Fmul_mul_shift_reduce_(
+ FStar_UInt128_uint128 *output,
+ uint64_t *input,
+ uint64_t *input2
+)
+{
+ uint32_t i;
+ uint64_t input2i;
+ {
+ uint32_t i0;
+ for (i0 = (uint32_t)0U; i0 < (uint32_t)4U; i0 = i0 + (uint32_t)1U)
+ {
+ uint64_t input2i0 = input2[i0];
+ Hacl_Bignum_Fproduct_sum_scalar_multiplication_(output, input, input2i0);
+ Hacl_Bignum_Fmul_shift_reduce(input);
+ }
+ }
+ i = (uint32_t)4U;
+ input2i = input2[i];
+ Hacl_Bignum_Fproduct_sum_scalar_multiplication_(output, input, input2i);
+}
+
+inline static void Hacl_Bignum_Fmul_fmul(uint64_t *output, uint64_t *input, uint64_t *input2)
+{
+ uint64_t tmp[5U] = { 0U };
+ memcpy(tmp, input, (uint32_t)5U * sizeof input[0U]);
+ KRML_CHECK_SIZE(sizeof (FStar_UInt128_uint128), (uint32_t)5U);
+ {
+ FStar_UInt128_uint128 t[5U];
+ {
+ uint32_t _i;
+ for (_i = 0U; _i < (uint32_t)5U; ++_i)
+ t[_i] = FStar_UInt128_uint64_to_uint128((uint64_t)0U);
+ }
+ {
+ FStar_UInt128_uint128 b4;
+ FStar_UInt128_uint128 b0;
+ FStar_UInt128_uint128 b4_;
+ FStar_UInt128_uint128 b0_;
+ uint64_t i0;
+ uint64_t i1;
+ uint64_t i0_;
+ uint64_t i1_;
+ Hacl_Bignum_Fmul_mul_shift_reduce_(t, tmp, input2);
+ Hacl_Bignum_Fproduct_carry_wide_(t);
+ b4 = t[4U];
+ b0 = t[0U];
+ b4_ = FStar_UInt128_logand(b4, FStar_UInt128_uint64_to_uint128((uint64_t)0x7ffffffffffffU));
+ b0_ =
+ FStar_UInt128_add(b0,
+ FStar_UInt128_mul_wide((uint64_t)19U,
+ FStar_UInt128_uint128_to_uint64(FStar_UInt128_shift_right(b4, (uint32_t)51U))));
+ t[4U] = b4_;
+ t[0U] = b0_;
+ Hacl_Bignum_Fproduct_copy_from_wide_(output, t);
+ i0 = output[0U];
+ i1 = output[1U];
+ i0_ = i0 & (uint64_t)0x7ffffffffffffU;
+ i1_ = i1 + (i0 >> (uint32_t)51U);
+ output[0U] = i0_;
+ output[1U] = i1_;
+ }
+ }
+}
+
+inline static void Hacl_Bignum_Fsquare_fsquare__(FStar_UInt128_uint128 *tmp, uint64_t *output)
+{
+ uint64_t r0 = output[0U];
+ uint64_t r1 = output[1U];
+ uint64_t r2 = output[2U];
+ uint64_t r3 = output[3U];
+ uint64_t r4 = output[4U];
+ uint64_t d0 = r0 * (uint64_t)2U;
+ uint64_t d1 = r1 * (uint64_t)2U;
+ uint64_t d2 = r2 * (uint64_t)2U * (uint64_t)19U;
+ uint64_t d419 = r4 * (uint64_t)19U;
+ uint64_t d4 = d419 * (uint64_t)2U;
+ FStar_UInt128_uint128
+ s0 =
+ FStar_UInt128_add(FStar_UInt128_add(FStar_UInt128_mul_wide(r0, r0),
+ FStar_UInt128_mul_wide(d4, r1)),
+ FStar_UInt128_mul_wide(d2, r3));
+ FStar_UInt128_uint128
+ s1 =
+ FStar_UInt128_add(FStar_UInt128_add(FStar_UInt128_mul_wide(d0, r1),
+ FStar_UInt128_mul_wide(d4, r2)),
+ FStar_UInt128_mul_wide(r3 * (uint64_t)19U, r3));
+ FStar_UInt128_uint128
+ s2 =
+ FStar_UInt128_add(FStar_UInt128_add(FStar_UInt128_mul_wide(d0, r2),
+ FStar_UInt128_mul_wide(r1, r1)),
+ FStar_UInt128_mul_wide(d4, r3));
+ FStar_UInt128_uint128
+ s3 =
+ FStar_UInt128_add(FStar_UInt128_add(FStar_UInt128_mul_wide(d0, r3),
+ FStar_UInt128_mul_wide(d1, r2)),
+ FStar_UInt128_mul_wide(r4, d419));
+ FStar_UInt128_uint128
+ s4 =
+ FStar_UInt128_add(FStar_UInt128_add(FStar_UInt128_mul_wide(d0, r4),
+ FStar_UInt128_mul_wide(d1, r3)),
+ FStar_UInt128_mul_wide(r2, r2));
+ tmp[0U] = s0;
+ tmp[1U] = s1;
+ tmp[2U] = s2;
+ tmp[3U] = s3;
+ tmp[4U] = s4;
+}
+
+inline static void Hacl_Bignum_Fsquare_fsquare_(FStar_UInt128_uint128 *tmp, uint64_t *output)
+{
+ FStar_UInt128_uint128 b4;
+ FStar_UInt128_uint128 b0;
+ FStar_UInt128_uint128 b4_;
+ FStar_UInt128_uint128 b0_;
+ uint64_t i0;
+ uint64_t i1;
+ uint64_t i0_;
+ uint64_t i1_;
+ Hacl_Bignum_Fsquare_fsquare__(tmp, output);
+ Hacl_Bignum_Fproduct_carry_wide_(tmp);
+ b4 = tmp[4U];
+ b0 = tmp[0U];
+ b4_ = FStar_UInt128_logand(b4, FStar_UInt128_uint64_to_uint128((uint64_t)0x7ffffffffffffU));
+ b0_ =
+ FStar_UInt128_add(b0,
+ FStar_UInt128_mul_wide((uint64_t)19U,
+ FStar_UInt128_uint128_to_uint64(FStar_UInt128_shift_right(b4, (uint32_t)51U))));
+ tmp[4U] = b4_;
+ tmp[0U] = b0_;
+ Hacl_Bignum_Fproduct_copy_from_wide_(output, tmp);
+ i0 = output[0U];
+ i1 = output[1U];
+ i0_ = i0 & (uint64_t)0x7ffffffffffffU;
+ i1_ = i1 + (i0 >> (uint32_t)51U);
+ output[0U] = i0_;
+ output[1U] = i1_;
+}
+
+static void
+Hacl_Bignum_Fsquare_fsquare_times_(
+ uint64_t *input,
+ FStar_UInt128_uint128 *tmp,
+ uint32_t count1
+)
+{
+ uint32_t i;
+ Hacl_Bignum_Fsquare_fsquare_(tmp, input);
+ for (i = (uint32_t)1U; i < count1; i = i + (uint32_t)1U)
+ Hacl_Bignum_Fsquare_fsquare_(tmp, input);
+}
+
+inline static void
+Hacl_Bignum_Fsquare_fsquare_times(uint64_t *output, uint64_t *input, uint32_t count1)
+{
+ KRML_CHECK_SIZE(sizeof (FStar_UInt128_uint128), (uint32_t)5U);
+ {
+ FStar_UInt128_uint128 t[5U];
+ {
+ uint32_t _i;
+ for (_i = 0U; _i < (uint32_t)5U; ++_i)
+ t[_i] = FStar_UInt128_uint64_to_uint128((uint64_t)0U);
+ }
+ memcpy(output, input, (uint32_t)5U * sizeof input[0U]);
+ Hacl_Bignum_Fsquare_fsquare_times_(output, t, count1);
+ }
+}
+
+inline static void Hacl_Bignum_Fsquare_fsquare_times_inplace(uint64_t *output, uint32_t count1)
+{
+ KRML_CHECK_SIZE(sizeof (FStar_UInt128_uint128), (uint32_t)5U);
+ {
+ FStar_UInt128_uint128 t[5U];
+ {
+ uint32_t _i;
+ for (_i = 0U; _i < (uint32_t)5U; ++_i)
+ t[_i] = FStar_UInt128_uint64_to_uint128((uint64_t)0U);
+ }
+ Hacl_Bignum_Fsquare_fsquare_times_(output, t, count1);
+ }
+}
+
+inline static void Hacl_Bignum_Crecip_crecip(uint64_t *out, uint64_t *z)
+{
+ uint64_t buf[20U] = { 0U };
+ uint64_t *a0 = buf;
+ uint64_t *t00 = buf + (uint32_t)5U;
+ uint64_t *b0 = buf + (uint32_t)10U;
+ uint64_t *t01;
+ uint64_t *b1;
+ uint64_t *c0;
+ uint64_t *a;
+ uint64_t *t0;
+ uint64_t *b;
+ uint64_t *c;
+ Hacl_Bignum_Fsquare_fsquare_times(a0, z, (uint32_t)1U);
+ Hacl_Bignum_Fsquare_fsquare_times(t00, a0, (uint32_t)2U);
+ Hacl_Bignum_Fmul_fmul(b0, t00, z);
+ Hacl_Bignum_Fmul_fmul(a0, b0, a0);
+ Hacl_Bignum_Fsquare_fsquare_times(t00, a0, (uint32_t)1U);
+ Hacl_Bignum_Fmul_fmul(b0, t00, b0);
+ Hacl_Bignum_Fsquare_fsquare_times(t00, b0, (uint32_t)5U);
+ t01 = buf + (uint32_t)5U;
+ b1 = buf + (uint32_t)10U;
+ c0 = buf + (uint32_t)15U;
+ Hacl_Bignum_Fmul_fmul(b1, t01, b1);
+ Hacl_Bignum_Fsquare_fsquare_times(t01, b1, (uint32_t)10U);
+ Hacl_Bignum_Fmul_fmul(c0, t01, b1);
+ Hacl_Bignum_Fsquare_fsquare_times(t01, c0, (uint32_t)20U);
+ Hacl_Bignum_Fmul_fmul(t01, t01, c0);
+ Hacl_Bignum_Fsquare_fsquare_times_inplace(t01, (uint32_t)10U);
+ Hacl_Bignum_Fmul_fmul(b1, t01, b1);
+ Hacl_Bignum_Fsquare_fsquare_times(t01, b1, (uint32_t)50U);
+ a = buf;
+ t0 = buf + (uint32_t)5U;
+ b = buf + (uint32_t)10U;
+ c = buf + (uint32_t)15U;
+ Hacl_Bignum_Fmul_fmul(c, t0, b);
+ Hacl_Bignum_Fsquare_fsquare_times(t0, c, (uint32_t)100U);
+ Hacl_Bignum_Fmul_fmul(t0, t0, c);
+ Hacl_Bignum_Fsquare_fsquare_times_inplace(t0, (uint32_t)50U);
+ Hacl_Bignum_Fmul_fmul(t0, t0, b);
+ Hacl_Bignum_Fsquare_fsquare_times_inplace(t0, (uint32_t)5U);
+ Hacl_Bignum_Fmul_fmul(out, t0, a);
+}
+
+inline static void Hacl_Bignum_fsum(uint64_t *a, uint64_t *b)
+{
+ uint32_t i;
+ for (i = (uint32_t)0U; i < (uint32_t)5U; i = i + (uint32_t)1U)
+ {
+ uint64_t xi = a[i];
+ uint64_t yi = b[i];
+ a[i] = xi + yi;
+ }
+}
+
+inline static void Hacl_Bignum_fdifference(uint64_t *a, uint64_t *b)
+{
+ uint64_t tmp[5U] = { 0U };
+ uint64_t b0;
+ uint64_t b1;
+ uint64_t b2;
+ uint64_t b3;
+ uint64_t b4;
+ memcpy(tmp, b, (uint32_t)5U * sizeof b[0U]);
+ b0 = tmp[0U];
+ b1 = tmp[1U];
+ b2 = tmp[2U];
+ b3 = tmp[3U];
+ b4 = tmp[4U];
+ tmp[0U] = b0 + (uint64_t)0x3fffffffffff68U;
+ tmp[1U] = b1 + (uint64_t)0x3ffffffffffff8U;
+ tmp[2U] = b2 + (uint64_t)0x3ffffffffffff8U;
+ tmp[3U] = b3 + (uint64_t)0x3ffffffffffff8U;
+ tmp[4U] = b4 + (uint64_t)0x3ffffffffffff8U;
+ {
+ uint32_t i;
+ for (i = (uint32_t)0U; i < (uint32_t)5U; i = i + (uint32_t)1U)
+ {
+ uint64_t xi = a[i];
+ uint64_t yi = tmp[i];
+ a[i] = yi - xi;
+ }
+ }
+}
+
+inline static void Hacl_Bignum_fscalar(uint64_t *output, uint64_t *b, uint64_t s)
+{
+ KRML_CHECK_SIZE(sizeof (FStar_UInt128_uint128), (uint32_t)5U);
+ {
+ FStar_UInt128_uint128 tmp[5U];
+ {
+ uint32_t _i;
+ for (_i = 0U; _i < (uint32_t)5U; ++_i)
+ tmp[_i] = FStar_UInt128_uint64_to_uint128((uint64_t)0U);
+ }
+ {
+ FStar_UInt128_uint128 b4;
+ FStar_UInt128_uint128 b0;
+ FStar_UInt128_uint128 b4_;
+ FStar_UInt128_uint128 b0_;
+ {
+ uint32_t i;
+ for (i = (uint32_t)0U; i < (uint32_t)5U; i = i + (uint32_t)1U)
+ {
+ uint64_t xi = b[i];
+ tmp[i] = FStar_UInt128_mul_wide(xi, s);
+ }
+ }
+ Hacl_Bignum_Fproduct_carry_wide_(tmp);
+ b4 = tmp[4U];
+ b0 = tmp[0U];
+ b4_ = FStar_UInt128_logand(b4, FStar_UInt128_uint64_to_uint128((uint64_t)0x7ffffffffffffU));
+ b0_ =
+ FStar_UInt128_add(b0,
+ FStar_UInt128_mul_wide((uint64_t)19U,
+ FStar_UInt128_uint128_to_uint64(FStar_UInt128_shift_right(b4, (uint32_t)51U))));
+ tmp[4U] = b4_;
+ tmp[0U] = b0_;
+ Hacl_Bignum_Fproduct_copy_from_wide_(output, tmp);
+ }
+ }
+}
+
+inline static void Hacl_Bignum_fmul(uint64_t *output, uint64_t *a, uint64_t *b)
+{
+ Hacl_Bignum_Fmul_fmul(output, a, b);
+}
+
+inline static void Hacl_Bignum_crecip(uint64_t *output, uint64_t *input)
+{
+ Hacl_Bignum_Crecip_crecip(output, input);
+}
+
+static void
+Hacl_EC_Point_swap_conditional_step(uint64_t *a, uint64_t *b, uint64_t swap1, uint32_t ctr)
+{
+ uint32_t i = ctr - (uint32_t)1U;
+ uint64_t ai = a[i];
+ uint64_t bi = b[i];
+ uint64_t x = swap1 & (ai ^ bi);
+ uint64_t ai1 = ai ^ x;
+ uint64_t bi1 = bi ^ x;
+ a[i] = ai1;
+ b[i] = bi1;
+}
+
+static void
+Hacl_EC_Point_swap_conditional_(uint64_t *a, uint64_t *b, uint64_t swap1, uint32_t ctr)
+{
+ if (!(ctr == (uint32_t)0U))
+ {
+ uint32_t i;
+ Hacl_EC_Point_swap_conditional_step(a, b, swap1, ctr);
+ i = ctr - (uint32_t)1U;
+ Hacl_EC_Point_swap_conditional_(a, b, swap1, i);
+ }
+}
+
+static void Hacl_EC_Point_swap_conditional(uint64_t *a, uint64_t *b, uint64_t iswap)
+{
+ uint64_t swap1 = (uint64_t)0U - iswap;
+ Hacl_EC_Point_swap_conditional_(a, b, swap1, (uint32_t)5U);
+ Hacl_EC_Point_swap_conditional_(a + (uint32_t)5U, b + (uint32_t)5U, swap1, (uint32_t)5U);
+}
+
+static void Hacl_EC_Point_copy(uint64_t *output, uint64_t *input)
+{
+ memcpy(output, input, (uint32_t)5U * sizeof input[0U]);
+ memcpy(output + (uint32_t)5U,
+ input + (uint32_t)5U,
+ (uint32_t)5U * sizeof (input + (uint32_t)5U)[0U]);
+}
+
+static void Hacl_EC_Format_fexpand(uint64_t *output, uint8_t *input)
+{
+ uint64_t i0 = load64_le(input);
+ uint8_t *x00 = input + (uint32_t)6U;
+ uint64_t i1 = load64_le(x00);
+ uint8_t *x01 = input + (uint32_t)12U;
+ uint64_t i2 = load64_le(x01);
+ uint8_t *x02 = input + (uint32_t)19U;
+ uint64_t i3 = load64_le(x02);
+ uint8_t *x0 = input + (uint32_t)24U;
+ uint64_t i4 = load64_le(x0);
+ uint64_t output0 = i0 & (uint64_t)0x7ffffffffffffU;
+ uint64_t output1 = i1 >> (uint32_t)3U & (uint64_t)0x7ffffffffffffU;
+ uint64_t output2 = i2 >> (uint32_t)6U & (uint64_t)0x7ffffffffffffU;
+ uint64_t output3 = i3 >> (uint32_t)1U & (uint64_t)0x7ffffffffffffU;
+ uint64_t output4 = i4 >> (uint32_t)12U & (uint64_t)0x7ffffffffffffU;
+ output[0U] = output0;
+ output[1U] = output1;
+ output[2U] = output2;
+ output[3U] = output3;
+ output[4U] = output4;
+}
+
+static void Hacl_EC_Format_fcontract_first_carry_pass(uint64_t *input)
+{
+ uint64_t t0 = input[0U];
+ uint64_t t1 = input[1U];
+ uint64_t t2 = input[2U];
+ uint64_t t3 = input[3U];
+ uint64_t t4 = input[4U];
+ uint64_t t1_ = t1 + (t0 >> (uint32_t)51U);
+ uint64_t t0_ = t0 & (uint64_t)0x7ffffffffffffU;
+ uint64_t t2_ = t2 + (t1_ >> (uint32_t)51U);
+ uint64_t t1__ = t1_ & (uint64_t)0x7ffffffffffffU;
+ uint64_t t3_ = t3 + (t2_ >> (uint32_t)51U);
+ uint64_t t2__ = t2_ & (uint64_t)0x7ffffffffffffU;
+ uint64_t t4_ = t4 + (t3_ >> (uint32_t)51U);
+ uint64_t t3__ = t3_ & (uint64_t)0x7ffffffffffffU;
+ input[0U] = t0_;
+ input[1U] = t1__;
+ input[2U] = t2__;
+ input[3U] = t3__;
+ input[4U] = t4_;
+}
+
+static void Hacl_EC_Format_fcontract_first_carry_full(uint64_t *input)
+{
+ Hacl_EC_Format_fcontract_first_carry_pass(input);
+ Hacl_Bignum_Modulo_carry_top(input);
+}
+
+static void Hacl_EC_Format_fcontract_second_carry_pass(uint64_t *input)
+{
+ uint64_t t0 = input[0U];
+ uint64_t t1 = input[1U];
+ uint64_t t2 = input[2U];
+ uint64_t t3 = input[3U];
+ uint64_t t4 = input[4U];
+ uint64_t t1_ = t1 + (t0 >> (uint32_t)51U);
+ uint64_t t0_ = t0 & (uint64_t)0x7ffffffffffffU;
+ uint64_t t2_ = t2 + (t1_ >> (uint32_t)51U);
+ uint64_t t1__ = t1_ & (uint64_t)0x7ffffffffffffU;
+ uint64_t t3_ = t3 + (t2_ >> (uint32_t)51U);
+ uint64_t t2__ = t2_ & (uint64_t)0x7ffffffffffffU;
+ uint64_t t4_ = t4 + (t3_ >> (uint32_t)51U);
+ uint64_t t3__ = t3_ & (uint64_t)0x7ffffffffffffU;
+ input[0U] = t0_;
+ input[1U] = t1__;
+ input[2U] = t2__;
+ input[3U] = t3__;
+ input[4U] = t4_;
+}
+
+static void Hacl_EC_Format_fcontract_second_carry_full(uint64_t *input)
+{
+ uint64_t i0;
+ uint64_t i1;
+ uint64_t i0_;
+ uint64_t i1_;
+ Hacl_EC_Format_fcontract_second_carry_pass(input);
+ Hacl_Bignum_Modulo_carry_top(input);
+ i0 = input[0U];
+ i1 = input[1U];
+ i0_ = i0 & (uint64_t)0x7ffffffffffffU;
+ i1_ = i1 + (i0 >> (uint32_t)51U);
+ input[0U] = i0_;
+ input[1U] = i1_;
+}
+
+static void Hacl_EC_Format_fcontract_trim(uint64_t *input)
+{
+ uint64_t a0 = input[0U];
+ uint64_t a1 = input[1U];
+ uint64_t a2 = input[2U];
+ uint64_t a3 = input[3U];
+ uint64_t a4 = input[4U];
+ uint64_t mask0 = FStar_UInt64_gte_mask(a0, (uint64_t)0x7ffffffffffedU);
+ uint64_t mask1 = FStar_UInt64_eq_mask(a1, (uint64_t)0x7ffffffffffffU);
+ uint64_t mask2 = FStar_UInt64_eq_mask(a2, (uint64_t)0x7ffffffffffffU);
+ uint64_t mask3 = FStar_UInt64_eq_mask(a3, (uint64_t)0x7ffffffffffffU);
+ uint64_t mask4 = FStar_UInt64_eq_mask(a4, (uint64_t)0x7ffffffffffffU);
+ uint64_t mask = (((mask0 & mask1) & mask2) & mask3) & mask4;
+ uint64_t a0_ = a0 - ((uint64_t)0x7ffffffffffedU & mask);
+ uint64_t a1_ = a1 - ((uint64_t)0x7ffffffffffffU & mask);
+ uint64_t a2_ = a2 - ((uint64_t)0x7ffffffffffffU & mask);
+ uint64_t a3_ = a3 - ((uint64_t)0x7ffffffffffffU & mask);
+ uint64_t a4_ = a4 - ((uint64_t)0x7ffffffffffffU & mask);
+ input[0U] = a0_;
+ input[1U] = a1_;
+ input[2U] = a2_;
+ input[3U] = a3_;
+ input[4U] = a4_;
+}
+
+static void Hacl_EC_Format_fcontract_store(uint8_t *output, uint64_t *input)
+{
+ uint64_t t0 = input[0U];
+ uint64_t t1 = input[1U];
+ uint64_t t2 = input[2U];
+ uint64_t t3 = input[3U];
+ uint64_t t4 = input[4U];
+ uint64_t o0 = t1 << (uint32_t)51U | t0;
+ uint64_t o1 = t2 << (uint32_t)38U | t1 >> (uint32_t)13U;
+ uint64_t o2 = t3 << (uint32_t)25U | t2 >> (uint32_t)26U;
+ uint64_t o3 = t4 << (uint32_t)12U | t3 >> (uint32_t)39U;
+ uint8_t *b0 = output;
+ uint8_t *b1 = output + (uint32_t)8U;
+ uint8_t *b2 = output + (uint32_t)16U;
+ uint8_t *b3 = output + (uint32_t)24U;
+ store64_le(b0, o0);
+ store64_le(b1, o1);
+ store64_le(b2, o2);
+ store64_le(b3, o3);
+}
+
+static void Hacl_EC_Format_fcontract(uint8_t *output, uint64_t *input)
+{
+ Hacl_EC_Format_fcontract_first_carry_full(input);
+ Hacl_EC_Format_fcontract_second_carry_full(input);
+ Hacl_EC_Format_fcontract_trim(input);
+ Hacl_EC_Format_fcontract_store(output, input);
+}
+
+static void Hacl_EC_Format_scalar_of_point(uint8_t *scalar, uint64_t *point)
+{
+ uint64_t *x = point;
+ uint64_t *z = point + (uint32_t)5U;
+ uint64_t buf[10U] = { 0U };
+ uint64_t *zmone = buf;
+ uint64_t *sc = buf + (uint32_t)5U;
+ Hacl_Bignum_crecip(zmone, z);
+ Hacl_Bignum_fmul(sc, x, zmone);
+ Hacl_EC_Format_fcontract(scalar, sc);
+}
+
+static void
+Hacl_EC_AddAndDouble_fmonty(
+ uint64_t *pp,
+ uint64_t *ppq,
+ uint64_t *p,
+ uint64_t *pq,
+ uint64_t *qmqp
+)
+{
+ uint64_t *qx = qmqp;
+ uint64_t *x2 = pp;
+ uint64_t *z2 = pp + (uint32_t)5U;
+ uint64_t *x3 = ppq;
+ uint64_t *z3 = ppq + (uint32_t)5U;
+ uint64_t *x = p;
+ uint64_t *z = p + (uint32_t)5U;
+ uint64_t *xprime = pq;
+ uint64_t *zprime = pq + (uint32_t)5U;
+ uint64_t buf[40U] = { 0U };
+ uint64_t *origx = buf;
+ uint64_t *origxprime0 = buf + (uint32_t)5U;
+ uint64_t *xxprime0 = buf + (uint32_t)25U;
+ uint64_t *zzprime0 = buf + (uint32_t)30U;
+ uint64_t *origxprime;
+ uint64_t *xx0;
+ uint64_t *zz0;
+ uint64_t *xxprime;
+ uint64_t *zzprime;
+ uint64_t *zzzprime;
+ uint64_t *zzz;
+ uint64_t *xx;
+ uint64_t *zz;
+ uint64_t scalar;
+ memcpy(origx, x, (uint32_t)5U * sizeof x[0U]);
+ Hacl_Bignum_fsum(x, z);
+ Hacl_Bignum_fdifference(z, origx);
+ memcpy(origxprime0, xprime, (uint32_t)5U * sizeof xprime[0U]);
+ Hacl_Bignum_fsum(xprime, zprime);
+ Hacl_Bignum_fdifference(zprime, origxprime0);
+ Hacl_Bignum_fmul(xxprime0, xprime, z);
+ Hacl_Bignum_fmul(zzprime0, x, zprime);
+ origxprime = buf + (uint32_t)5U;
+ xx0 = buf + (uint32_t)15U;
+ zz0 = buf + (uint32_t)20U;
+ xxprime = buf + (uint32_t)25U;
+ zzprime = buf + (uint32_t)30U;
+ zzzprime = buf + (uint32_t)35U;
+ memcpy(origxprime, xxprime, (uint32_t)5U * sizeof xxprime[0U]);
+ Hacl_Bignum_fsum(xxprime, zzprime);
+ Hacl_Bignum_fdifference(zzprime, origxprime);
+ Hacl_Bignum_Fsquare_fsquare_times(x3, xxprime, (uint32_t)1U);
+ Hacl_Bignum_Fsquare_fsquare_times(zzzprime, zzprime, (uint32_t)1U);
+ Hacl_Bignum_fmul(z3, zzzprime, qx);
+ Hacl_Bignum_Fsquare_fsquare_times(xx0, x, (uint32_t)1U);
+ Hacl_Bignum_Fsquare_fsquare_times(zz0, z, (uint32_t)1U);
+ zzz = buf + (uint32_t)10U;
+ xx = buf + (uint32_t)15U;
+ zz = buf + (uint32_t)20U;
+ Hacl_Bignum_fmul(x2, xx, zz);
+ Hacl_Bignum_fdifference(zz, xx);
+ scalar = (uint64_t)121665U;
+ Hacl_Bignum_fscalar(zzz, zz, scalar);
+ Hacl_Bignum_fsum(zzz, xx);
+ Hacl_Bignum_fmul(z2, zzz, zz);
+}
+
+static void
+Hacl_EC_Ladder_SmallLoop_cmult_small_loop_step(
+ uint64_t *nq,
+ uint64_t *nqpq,
+ uint64_t *nq2,
+ uint64_t *nqpq2,
+ uint64_t *q,
+ uint8_t byt
+)
+{
+ uint64_t bit0 = (uint64_t)(byt >> (uint32_t)7U);
+ uint64_t bit;
+ Hacl_EC_Point_swap_conditional(nq, nqpq, bit0);
+ Hacl_EC_AddAndDouble_fmonty(nq2, nqpq2, nq, nqpq, q);
+ bit = (uint64_t)(byt >> (uint32_t)7U);
+ Hacl_EC_Point_swap_conditional(nq2, nqpq2, bit);
+}
+
+static void
+Hacl_EC_Ladder_SmallLoop_cmult_small_loop_double_step(
+ uint64_t *nq,
+ uint64_t *nqpq,
+ uint64_t *nq2,
+ uint64_t *nqpq2,
+ uint64_t *q,
+ uint8_t byt
+)
+{
+ uint8_t byt1;
+ Hacl_EC_Ladder_SmallLoop_cmult_small_loop_step(nq, nqpq, nq2, nqpq2, q, byt);
+ byt1 = byt << (uint32_t)1U;
+ Hacl_EC_Ladder_SmallLoop_cmult_small_loop_step(nq2, nqpq2, nq, nqpq, q, byt1);
+}
+
+static void
+Hacl_EC_Ladder_SmallLoop_cmult_small_loop(
+ uint64_t *nq,
+ uint64_t *nqpq,
+ uint64_t *nq2,
+ uint64_t *nqpq2,
+ uint64_t *q,
+ uint8_t byt,
+ uint32_t i
+)
+{
+ if (!(i == (uint32_t)0U))
+ {
+ uint32_t i_ = i - (uint32_t)1U;
+ uint8_t byt_;
+ Hacl_EC_Ladder_SmallLoop_cmult_small_loop_double_step(nq, nqpq, nq2, nqpq2, q, byt);
+ byt_ = byt << (uint32_t)2U;
+ Hacl_EC_Ladder_SmallLoop_cmult_small_loop(nq, nqpq, nq2, nqpq2, q, byt_, i_);
+ }
+}
+
+static void
+Hacl_EC_Ladder_BigLoop_cmult_big_loop(
+ uint8_t *n1,
+ uint64_t *nq,
+ uint64_t *nqpq,
+ uint64_t *nq2,
+ uint64_t *nqpq2,
+ uint64_t *q,
+ uint32_t i
+)
+{
+ if (!(i == (uint32_t)0U))
+ {
+ uint32_t i1 = i - (uint32_t)1U;
+ uint8_t byte = n1[i1];
+ Hacl_EC_Ladder_SmallLoop_cmult_small_loop(nq, nqpq, nq2, nqpq2, q, byte, (uint32_t)4U);
+ Hacl_EC_Ladder_BigLoop_cmult_big_loop(n1, nq, nqpq, nq2, nqpq2, q, i1);
+ }
+}
+
+static void Hacl_EC_Ladder_cmult(uint64_t *result, uint8_t *n1, uint64_t *q)
+{
+ uint64_t point_buf[40U] = { 0U };
+ uint64_t *nq = point_buf;
+ uint64_t *nqpq = point_buf + (uint32_t)10U;
+ uint64_t *nq2 = point_buf + (uint32_t)20U;
+ uint64_t *nqpq2 = point_buf + (uint32_t)30U;
+ Hacl_EC_Point_copy(nqpq, q);
+ nq[0U] = (uint64_t)1U;
+ Hacl_EC_Ladder_BigLoop_cmult_big_loop(n1, nq, nqpq, nq2, nqpq2, q, (uint32_t)32U);
+ Hacl_EC_Point_copy(result, nq);
+}
+
+void Hacl_Curve25519_crypto_scalarmult(uint8_t *mypublic, uint8_t *secret, uint8_t *basepoint)
+{
+ uint64_t buf0[10U] = { 0U };
+ uint64_t *x0 = buf0;
+ uint64_t *z = buf0 + (uint32_t)5U;
+ uint64_t *q;
+ Hacl_EC_Format_fexpand(x0, basepoint);
+ z[0U] = (uint64_t)1U;
+ q = buf0;
+ {
+ uint8_t e[32U] = { 0U };
+ uint8_t e0;
+ uint8_t e31;
+ uint8_t e01;
+ uint8_t e311;
+ uint8_t e312;
+ uint8_t *scalar;
+ memcpy(e, secret, (uint32_t)32U * sizeof secret[0U]);
+ e0 = e[0U];
+ e31 = e[31U];
+ e01 = e0 & (uint8_t)248U;
+ e311 = e31 & (uint8_t)127U;
+ e312 = e311 | (uint8_t)64U;
+ e[0U] = e01;
+ e[31U] = e312;
+ scalar = e;
+ {
+ uint64_t buf[15U] = { 0U };
+ uint64_t *nq = buf;
+ uint64_t *x = nq;
+ x[0U] = (uint64_t)1U;
+ Hacl_EC_Ladder_cmult(nq, scalar, q);
+ Hacl_EC_Format_scalar_of_point(mypublic, nq);
+ }
+ }
+}
+