1 /*
2 * Copyright (c) 2001-2019, Arm Limited and Contributors. All rights reserved.
3 *
4 * SPDX-License-Identifier: BSD-3-Clause
5 */
6
7 /*
8 * All the includes that are needed for code using this module to
9 * compile correctly should be #included here.
10 */
11 #include "cc_pal_types.h"
12 #include "cc_ecpki_types.h"
13
14
15 /**************** The domain structure describing *************/
16 /**
17 // The structure containing EC domain parameters in little-endian form.
18 // Elliptic curve: Y^2 = X^3 + A*X + B over prime fild GFp
19
20 typedef struct {
21
22 // Field modulus: GF_Modulus = P
23 uint32_t ecP [CC_ECPKI_MODUL_MAX_LENGTH_IN_WORDS];
24 // EC equation parameters a, b
25 uint32_t ecA [CC_ECPKI_MODUL_MAX_LENGTH_IN_WORDS];
26 uint32_t ecB [CC_ECPKI_MODUL_MAX_LENGTH_IN_WORDS];
27 // Order of generator: EC_GenerOrder
28 uint32_t ecOrd [CC_ECPKI_MODUL_MAX_LENGTH_IN_WORDS + 1];
29 // Generator (EC base point) coordinates in projective form
30 uint32_t ecGx [CC_ECPKI_MODUL_MAX_LENGTH_IN_WORDS];
31 uint32_t ecGy [CC_ECPKI_MODUL_MAX_LENGTH_IN_WORDS];
32 // EC cofactor EC_Cofactor_K
33 uint32_t ecH;
34 // include the specific fields that are used by the low level
35 uint32_t barrTagBuff[CC_PKA_DOMAIN_BUFF_SIZE_IN_WORDS];
36 // Size of fields in bits
37 uint32_t modSizeInBits;
38 uint32_t ordSizeInBits;
39 // Size of each inserted Barret tag in words; 0 - if not inserted
40 uint32_t barrTagSizeInWords;
41 CCEcpkiDomainID_t DomainID;
42 int8_t name[20];
43
44 } CCEcpkiDomain_t;
45
46 */
47
48
49 /***********************************************************************************
50 * Data base of CC_ECPKI_DomainID_secp256r1: structure of type CCEcpkiDomain_t *
51 * All data is given in little endian order of words in arrays *
52 ***********************************************************************************/
53 static const CCEcpkiDomain_t ecpki_domain_secp256r1 = {
54 /* Field modulus : GF_Modulus = FFFFFFFF00000001000000000000000000000000FFFFFFFFFFFFFFFFFFFFFFFF - big end*/
55 {0xFFFFFFFF,0xFFFFFFFF,0xFFFFFFFF,0x00000000,0x00000000,0x00000000,0x00000001,0xFFFFFFFF},
56 /* EC equation parameters a, b */
57 /* a = FFFFFFFF00000001000000000000000000000000FFFFFFFFFFFFFFFFFFFFFFFC - big end from SEC2 */
58 {0xFFFFFFFC,0xFFFFFFFF,0xFFFFFFFF,0x00000000,0x00000000,0x00000000,0x00000001,0xFFFFFFFF},
59 /* b = 5AC635D8AA3A93E7B3EBBD55769886BC651D06B0CC53B0F63BCE3C3E27D2604B - big end from SEC2 */
60 {0x27D2604B,0x3BCE3C3E,0xCC53B0F6,0x651D06B0,0x769886BC,0xB3EBBD55,0xAA3A93E7,0x5AC635D8},
61
62 /* Order of generator: FFFFFFFF00000000FFFFFFFFFFFFFFFFBCE6FAADA7179E84F3B9CAC2FC632551 big end from SEC2 */
63 {0xFC632551,0xF3B9CAC2,0xA7179E84,0xBCE6FAAD,0xFFFFFFFF,0xFFFFFFFF,0x00000000,0xFFFFFFFF},
64
65 /* Generator coordinates in affine form: EC_Gener_X, EC_Gener_Y (in ordinary representation) */
66 /* 6B17D1F2E12C4247F8BCE6E563A440F277037D812DEB33A0F4A13945D898C296 X - big end from SEC2 */
67 {0xD898C296,0xF4A13945,0x2DEB33A0,0x77037D81,0x63A440F2,0xF8BCE6E5,0xE12C4247,0x6B17D1F2},
68 /* 4FE342E2FE1A7F9B8EE7EB4A7C0F9E162BCE33576B315ECECBB6406837BF51F5 Y - big end from SEC2 */
69 {0x37BF51F5,0xCBB64068,0x6B315ECE,0x2BCE3357,0x7C0F9E16,0x8EE7EB4A,0xFE1A7F9B,0x4FE342E2},
70
71 1, /* EC cofactor K */
72
73 /* Barrett tags NP,RP */
74 #ifdef CC_SUPPORT_PKA_128_32
75 {0xFFFFFF7F,0xFFFFFF7F,0xFFFFFFFF,0x0000007F,0x00000080,
76 0xFFFFFFA1,0xFFFFFF7F,0xFFFFFFFF,0x0000007F,0x00000080},
77 #else // CC_SUPPORT_PKA_64_16
78 {0xFFFFFFFF,0x0000007F,0x00000080,0x00000000, 0x00000000,
79 0xFFFFFFFF,0x0000007F,0x00000080,0x00000000,0x00000000},
80 #endif
81
82 256, /* Size of field modulus in bits */
83 256, /* Size of order of generator in bits */
84 5, /* Size of each inserted Barret tag in words; 0 - if not inserted */
85
86 CC_ECPKI_DomainID_secp256r1, /* EC Domain identifier - enum */
87 "SECG_PRIME_256R1" /*NIST_P256*/
88
89 };
90
91
92
93
94 /**
95 @brief the function returns the domain pointer id the domain is supported for the product;
96 otherwise return NULL
97 @return return domain pointer or NULL
98
99 */
CC_EcpkiGetSecp256r1DomainP(void)100 const CCEcpkiDomain_t *CC_EcpkiGetSecp256r1DomainP(void)
101 {
102 return &ecpki_domain_secp256r1;
103 }
104
105
