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Change GF(2^128) API

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from `r = op(a, b)` to `op(r, a, b)`
This commit is contained in:
Zhi Guan
2024-04-11 17:57:41 +08:00
parent 6a55fd1445
commit f9e9b20fa7
5 changed files with 153 additions and 194 deletions
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31
include/gmssl/gf128.h
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@@ -1,5 +1,5 @@
/*
* Copyright 2014-2022 The GmSSL Project. All Rights Reserved.
* Copyright 2014-2024 The GmSSL Project. All Rights Reserved.
*
* Licensed under the Apache License, Version 2.0 (the License); you may
* not use this file except in compliance with the License.
@@ -27,27 +27,20 @@
extern "C" {
#endif
//typedef unsigned __int128 gf128_t;
// the least significant bit of lo is a_0, the most significant bit of hi is a_127
// so x^7 + x^2 + x + 1 is 0x87
typedef struct {
uint64_t lo;
uint64_t hi;
} gf128_t;
typedef uint64_t gf128_t[2];
void gf128_set_zero(gf128_t r);
void gf128_set_one(gf128_t r);
void gf128_add(gf128_t r, const gf128_t a, const gf128_t b);
void gf128_mul(gf128_t r, const gf128_t a, const gf128_t b);
void gf128_mul_by_2(gf128_t r, const gf128_t a);
void gf128_from_bytes(gf128_t r, const uint8_t p[16]);
void gf128_to_bytes(const gf128_t a, uint8_t p[16]);
int gf128_from_hex(gf128_t r, const char *s);
int gf128_equ_hex(const gf128_t a, const char *s);
int gf128_print(FILE *fp, int fmt, int ind, const char *label, const gf128_t a);
// Note: send by value is comptabile with uint128_t and sse2
gf128_t gf128_from_hex(const char *s);
int gf128_equ_hex(gf128_t a, const char *s);
gf128_t gf128_zero(void);
gf128_t gf128_add(gf128_t a, gf128_t b);
gf128_t gf128_mul(gf128_t a, gf128_t b);
gf128_t gf128_mul2(gf128_t a);
gf128_t gf128_from_bytes(const uint8_t p[16]);
void gf128_to_bytes(gf128_t a, uint8_t p[16]);
int gf128_print(FILE *fp, int fmt ,int ind, const char *label, gf128_t a);
void gf128_print_bits(gf128_t a);
#ifdef __cplusplus
}