ecc_ec_fp_sign_verify_common.c 文件参考

#include "ecc_ec_fp.h"
#include "crypto_drv_common.h"
#include "hal_pke_reg.h"
#include "hal_pke.h"
#include "drv_common_pke.h"

ecc_ec_fp_sign_verify_common.c 的引用(Include)关系图:

函数
td_s32	ecc_ecfp_jac_to_aff (const drv_pke_data *mod_p)
	Get final calculate result. trans (ecc_addr_cx, ecc_addr_cy, ecc_addr_cz) from jac to aff. aff_x = jac_x * ((jac_z)^-2); aff_y = jac_y * ((jac_z)^-3)
td_s32	ecc_ecfp_montgomery_data_aff (const drv_pke_ecc_point *in, const drv_pke_data *mod_p, const drv_pke_ecc_point *out CIPHER_CHECK_WORD)
	montgomery the point coordinate in affine coordinate system. Before call this API, you should have set curve initial parameters into the DRAM.
td_s32	ecc_ecfp_demontgomery_data_aff (const drv_pke_ecc_point *r, td_u32 work_len)
	demontgomery data, (ecc_addr_cx, ecc_addr_cy) -> (ecc_addr_cx, ecc_addr_cy). Before calculate demont, you should have set const_1 to ecc_addr_const_1.
td_s32	update_modulus (const td_u8 *n, const td_u32 n_len CIPHER_CHECK_WORD)
	update modulus into ecc_addr_m, and set new montgomery parameter into reg. Before call this API, you should have set initial parameters into PKE DRAM.
td_s32	ecc_ecfn_inv (const drv_pke_data *a, const drv_pke_data *n, const drv_pke_data *c CIPHER_CHECK_WORD)
	c = ~a mod n, ecc_addr_s = 1/ecc_addr_k. Before call this API, you should have set curve initial parameters into DRAM, which must include ecc_addr_rrn, ecc_addr_mont_1_n.

函数说明

ecc_ecfn_inv()

td_s32 ecc_ecfn_inv	(	const drv_pke_data *	a,
		const drv_pke_data *	n,
		const drv_pke_data *c	CIPHER_CHECK_WORD
	)

c = ~a mod n, ecc_addr_s = 1/ecc_addr_k. Before call this API, you should have set curve initial parameters into DRAM, which must include ecc_addr_rrn, ecc_addr_mont_1_n.

参数

a	the input data.
n	the modulus.
c	the output data.
CIPHER_CHECK_WORD	ifdef SEC_ENHANCE, the value is XOR result of parameters, otherwise it doesn't exist.

返回

td_s32 TD_SUCCESS or others.

ecc_ecfp_demontgomery_data_aff()

td_s32 ecc_ecfp_demontgomery_data_aff	(	const drv_pke_ecc_point *	r,
		td_u32	work_len
	)

demontgomery data, (ecc_addr_cx, ecc_addr_cy) -> (ecc_addr_cx, ecc_addr_cy). Before calculate demont, you should have set const_1 to ecc_addr_const_1.

参数

r	store the result.
work_len	work_len = celing(aligned_len/64).

返回

td_s32 TD_SUCCESS or others.

ecc_ecfp_jac_to_aff()

td_s32 ecc_ecfp_jac_to_aff

(

const drv_pke_data *

mod_p

)

Get final calculate result. trans (ecc_addr_cx, ecc_addr_cy, ecc_addr_cz) from jac to aff. aff_x = jac_x * ((jac_z)^-2); aff_y = jac_y * ((jac_z)^-3)

Copyright (c) HiSilicon (Shanghai) Technologies Co., Ltd. 2023-2023. All rights reserved. Description: ecc common algorithm implementation

Create: 2023-06-05

ecc_ecfp_montgomery_data_aff()

td_s32 ecc_ecfp_montgomery_data_aff	(	const drv_pke_ecc_point *	in,
		const drv_pke_data *	mod_p,
		const drv_pke_ecc_point *out	CIPHER_CHECK_WORD
	)

montgomery the point coordinate in affine coordinate system. Before call this API, you should have set curve initial parameters into the DRAM.

参数

in	intput point in affine coordinate system.
mod_p	modulus.
out	output point in affine coordinate system.
CIPHER_CHECK_WORD	ifdef SEC_ENHANCE, the value is XOR result of parameters, otherwise it doesn't exist.

返回

td_s32 TD_SUCCESS or others.

update_modulus()

td_s32 update_modulus	(	const td_u8 *	n,
		const td_u32 n_len	CIPHER_CHECK_WORD
	)

update modulus into ecc_addr_m, and set new montgomery parameter into reg. Before call this API, you should have set initial parameters into PKE DRAM.

参数

n	the new modulus
n_len	the byte length of new modulus.
CIPHER_CHECK_WORD	ifdef SEC_ENHANCE, the value is XOR result of parameters, otherwise it doesn't exist.

返回

td_s32 TD_SUCCESS or others.