97 lines
4.3 KiB
C
97 lines
4.3 KiB
C
/*
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* Copyright 2022 The Tongsuo Project Authors. All Rights Reserved.
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*
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* Licensed under the Apache License 2.0 (the "License"). You may not use
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* this file except in compliance with the License. You can obtain a copy
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* in the file LICENSE in the source distribution or at
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* https://github.com/Tongsuo-Project/Tongsuo/blob/master/LICENSE.txt
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*/
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/*
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* This header file is only used for the --symbol-prefix search export symbol.
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*/
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int x25519_fe64_eligible(void);
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void x25519_fe64_mul(fe64 h, const fe64 f, const fe64 g);
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void x25519_fe64_sqr(fe64 h, const fe64 f);
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void x25519_fe64_mul121666(fe64 h, fe64 f);
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void x25519_fe64_add(fe64 h, const fe64 f, const fe64 g);
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void x25519_fe64_sub(fe64 h, const fe64 f, const fe64 g);
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void x25519_fe64_tobytes(uint8_t *s, const fe64 f);
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void x25519_fe51_mul(fe51 h, const fe51 f, const fe51 g);
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void x25519_fe51_sqr(fe51 h, const fe51 f);
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void x25519_fe51_mul121666(fe51 h, fe51 f);
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/* Modular add: res = a+b mod P */
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void ecp_nistz256_add(BN_ULONG res[P256_LIMBS],
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const BN_ULONG a[P256_LIMBS],
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const BN_ULONG b[P256_LIMBS]);
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/* Modular mul by 2: res = 2*a mod P */
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void ecp_nistz256_mul_by_2(BN_ULONG res[P256_LIMBS],
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const BN_ULONG a[P256_LIMBS]);
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/* Modular mul by 3: res = 3*a mod P */
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void ecp_nistz256_mul_by_3(BN_ULONG res[P256_LIMBS],
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const BN_ULONG a[P256_LIMBS]);
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/* Modular div by 2: res = a/2 mod P */
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void ecp_nistz256_div_by_2(BN_ULONG res[P256_LIMBS],
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const BN_ULONG a[P256_LIMBS]);
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/* Modular sub: res = a-b mod P */
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void ecp_nistz256_sub(BN_ULONG res[P256_LIMBS],
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const BN_ULONG a[P256_LIMBS],
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const BN_ULONG b[P256_LIMBS]);
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/* Modular neg: res = -a mod P */
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void ecp_nistz256_neg(BN_ULONG res[P256_LIMBS], const BN_ULONG a[P256_LIMBS]);
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/* Montgomery mul: res = a*b*2^-256 mod P */
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void ecp_nistz256_mul_mont(BN_ULONG res[P256_LIMBS],
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const BN_ULONG a[P256_LIMBS],
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const BN_ULONG b[P256_LIMBS]);
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/* Montgomery sqr: res = a*a*2^-256 mod P */
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void ecp_nistz256_sqr_mont(BN_ULONG res[P256_LIMBS],
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const BN_ULONG a[P256_LIMBS]);
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/* Convert a number from Montgomery domain, by multiplying with 1 */
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void ecp_nistz256_from_mont(BN_ULONG res[P256_LIMBS],
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const BN_ULONG in[P256_LIMBS]);
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/* Convert a number to Montgomery domain, by multiplying with 2^512 mod P*/
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void ecp_nistz256_to_mont(BN_ULONG res[P256_LIMBS],
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const BN_ULONG in[P256_LIMBS]);
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/* Functions that perform constant time access to the precomputed tables */
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void ecp_nistz256_scatter_w5(P256_POINT *val,
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const P256_POINT *in_t, int idx);
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void ecp_nistz256_gather_w5(P256_POINT *val,
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const P256_POINT *in_t, int idx);
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void ecp_nistz256_scatter_w7(P256_POINT_AFFINE *val,
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const P256_POINT_AFFINE *in_t, int idx);
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void ecp_nistz256_gather_w7(P256_POINT_AFFINE *val,
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const P256_POINT_AFFINE *in_t, int idx);
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/* Precomputed tables for the default generator */
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extern const PRECOMP256_ROW ecp_nistz256_precomputed[37];
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#ifndef ECP_NISTZ256_REFERENCE_IMPLEMENTATION
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void ecp_nistz256_point_double(P256_POINT *r, const P256_POINT *a);
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void ecp_nistz256_point_add(P256_POINT *r,
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const P256_POINT *a, const P256_POINT *b);
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void ecp_nistz256_point_add_affine(P256_POINT *r,
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const P256_POINT *a,
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const P256_POINT_AFFINE *b);
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#endif
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#if defined(__x86_64) || defined(__x86_64__) || \
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defined(_M_AMD64) || defined(_M_X64) || \
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defined(__powerpc64__) || defined(_ARCH_PP64) || \
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defined(__aarch64__)
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/*
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* Montgomery mul modulo Order(P): res = a*b*2^-256 mod Order(P)
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*/
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void ecp_nistz256_ord_mul_mont(BN_ULONG res[P256_LIMBS],
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const BN_ULONG a[P256_LIMBS],
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const BN_ULONG b[P256_LIMBS]);
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void ecp_nistz256_ord_sqr_mont(BN_ULONG res[P256_LIMBS],
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const BN_ULONG a[P256_LIMBS],
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BN_ULONG rep);
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#endif
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DECLARE_ASN1_FUNCTIONS(EC_PRIVATEKEY)
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DECLARE_ASN1_ENCODE_FUNCTIONS_name(EC_PRIVATEKEY, EC_PRIVATEKEY)
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