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124 lines
3.9 KiB
124 lines
3.9 KiB
// SPDX-License-Identifier: GPL-2.0
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/*
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* Copyright (c) 2024 Rockchip Electronics Co., Ltd
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*/
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#ifndef _ROCKCHIP_CRYPTO_ECC_H_
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#define _ROCKCHIP_CRYPTO_ECC_H_
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#include <asm/io.h>
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#include <common.h>
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#include <rockchip/crypto_v2.h>
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#include <rockchip/crypto_v2_util.h>
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#define SM2_RAM_BASE ((crypto_base) + 0x1000)
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#define _SBF(s, v) ((v) << (s))
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#define _BIT(b) _SBF(b, 1)
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#define RK_ECP_MAX_BITS 256
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#define RK_ECP_MAX_BYTES ((RK_ECP_MAX_BITS) / 8)
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#define RK_ECP_MAX_WORDS ((RK_ECP_MAX_BITS) / 32)
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#define RK_ECP_MAX_WORDS_ALL (512 / 32)
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#define RK_ECC_CTL 0x03F0
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#define RK_ECC_CTL_RAND_K_SRC_SOFT _SBF(12, 0)
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#define RK_ECC_CTL_RAND_K_SRC_HARD _SBF(12, 1)
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#define RK_ECC_CTL_FUNC_SM2_CURVER _SBF(8, 0x0)
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#define RK_ECC_CTL_FUNC_ECC_CURVER _SBF(8, 0x1)
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#define RK_ECC_CTL_FUNC_SEL_MUL _SBF(4, 0x0)
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#define RK_ECC_CTL_FUNC_SEL_KG _SBF(4, 0x1)
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#define RK_ECC_CTL_FUNC_SEL_SIGN _SBF(4, 0x2)
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#define RK_ECC_CTL_FUNC_SEL_VERIFY _SBF(4, 0x3)
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#define RK_ECC_CTL_FUNC_SEL_MUL_MOD _SBF(4, 0x4)
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#define RK_ECC_CTL_FUNC_SEL_ADD_MOD _SBF(4, 0x5)
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#define RK_ECC_CTL_FUNC_SEL_DOUBLE_POINT _SBF(4, 0x6)
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#define RK_ECC_CTL_FUNC_SEL_ADD_POINT _SBF(4, 0x7)
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#define RK_ECC_CTL_FUNC_SEL_KP _SBF(4, 0x8)
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#define RK_ECC_CTL_FUNC_SEL_KP_KG _SBF(4, 0xa)
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#define RK_ECC_CTL_REQ_ECC _SBF(0, 1)
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#define RK_ECC_INT_EN 0x03F4
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#define RK_ECC_INT_EN_DONE _BIT(0)
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#define RK_ECC_INT_ST 0x03F8
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#define RK_ECC_INT_ST_DONE _BIT(0)
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#define RK_ECC_ABN_ST 0x03FC
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#define RK_ECC_ABN_ST_BAD_INV_OUT _BIT(8)
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#define RK_ECC_ABN_ST_BAD_K_IN _BIT(7)
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#define RK_ECC_ABN_ST_BAD_R_IN _BIT(6)
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#define RK_ECC_ABN_ST_BAD_S_IN _BIT(5)
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#define RK_ECC_ABN_ST_BAD_R_K_MID _BIT(4)
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#define RK_ECC_ABN_ST_BAD_R_OUT _BIT(3)
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#define RK_ECC_ABN_ST_BAD_S_OUT _BIT(2)
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#define RK_ECC_ABN_ST_BAD_T_OUT _BIT(1)
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#define RK_ECC_ABN_ST_BAD_POINT_OUT _BIT(0)
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#define RK_ECC_CURVE_WIDE 0x0400
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#define RK_ECC_CURVE_WIDE_192 192
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#define RK_ECC_CURVE_WIDE_224 224
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#define RK_ECC_CURVE_WIDE_256 256
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#define RK_ECC_MAX_CURVE_WIDE 0x0404
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#define RK_ECC_DATA_ENDIAN 0x0408
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#define RK_ECC_DATA_ENDIAN_LITTLE 0x0
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#define RK_ECC_DATA_ENDIAN_BIG 0x1
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#define RK_ECC_RAM_CTL 0x0480
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#define RK_ECC_RAM_CTL_SEL_MASK _SBF(16, 3)
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#define RK_ECC_RAM_CTL_CPU _SBF(0, 0)
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#define RK_ECC_RAM_CTL_PKA _SBF(0, 1)
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#define RK_ECC_RAM_CTL_ECC _SBF(0, 2)
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struct rk_ecp_point {
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struct mpa_num *x; /*!< the point's X coordinate */
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struct mpa_num *y; /*!< the point's Y coordinate */
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};
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enum rk_ecp_group_id {
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RK_ECP_DP_NONE = 0,
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RK_ECP_DP_SECP192R1, /*!< 192-bits NIST curve */
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RK_ECP_DP_SECP224R1, /*!< 224-bits NIST curve */
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RK_ECP_DP_SECP256R1, /*!< 256-bits NIST curve */
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RK_ECP_DP_SM2P256V1, /*!< */
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};
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struct rk_ecp_group {
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enum rk_ecp_group_id id; /*!< internal group identifier */
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const char *curve_name;
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uint32_t wide;
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const uint8_t *p; /*!< prime modulus of the base field */
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const uint8_t *a; /*!< 1. A in the equation, or 2. (A + 2) / 4 */
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const uint8_t *n;
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const uint8_t *gx;
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const uint8_t *gy;
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size_t p_len;
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size_t a_len;
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size_t n_len;
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size_t gx_len;
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size_t gy_len;
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};
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struct rk_ecc_verify {
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uint32_t e[RK_ECP_MAX_WORDS_ALL]; // 0x00
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uint32_t r_[RK_ECP_MAX_WORDS_ALL]; // 0x40
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uint32_t s_[RK_ECP_MAX_WORDS_ALL]; // 0x80
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uint32_t p_x[RK_ECP_MAX_WORDS_ALL]; // 0xC0
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uint32_t p_y[RK_ECP_MAX_WORDS_ALL]; // 0x100
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uint32_t A[RK_ECP_MAX_WORDS_ALL]; // 0x140
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uint32_t P[RK_ECP_MAX_WORDS_ALL]; // 0x180
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uint32_t N[RK_ECP_MAX_WORDS_ALL]; // 0x1C0
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uint32_t G_x[RK_ECP_MAX_WORDS_ALL]; // 0x200
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uint32_t G_y[RK_ECP_MAX_WORDS_ALL]; // 0x240
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uint32_t r[RK_ECP_MAX_WORDS_ALL]; // 0x280
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uint32_t v[RK_ECP_MAX_WORDS_ALL]; // 0x2C0
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};
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int rockchip_ecc_verify(uint32_t crypto_algo, uint8_t *hash, uint32_t hash_len,
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struct rk_ecp_point *point_P, struct rk_ecp_point *point_sign);
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#endif
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