wolf SSL / wolfSSL

wolfSSL SSL/TLS library, support up to TLS1.3

Dependents:   CyaSSL-Twitter-OAuth4Tw Example-client-tls-cert TwitterReader TweetTest ... more

wolfssl/wolfcrypt/ecc.h@15:117db924cf7c, 2018-08-18 (annotated)

Committer:
wolfSSL
Date:
Sat Aug 18 22:20:43 2018 +0000
Revision:
15:117db924cf7c
Child:
16:8e0d178b1d1e
wolfSSL 3.15.3

Who changed what in which revision?

UserRevisionLine numberNew contents of line
wolfSSL 15:117db924cf7c 1 /* ecc.h
wolfSSL 15:117db924cf7c 2 *
wolfSSL 15:117db924cf7c 3 * Copyright (C) 2006-2017 wolfSSL Inc.
wolfSSL 15:117db924cf7c 4 *
wolfSSL 15:117db924cf7c 5 * This file is part of wolfSSL.
wolfSSL 15:117db924cf7c 6 *
wolfSSL 15:117db924cf7c 7 * wolfSSL is free software; you can redistribute it and/or modify
wolfSSL 15:117db924cf7c 8 * it under the terms of the GNU General Public License as published by
wolfSSL 15:117db924cf7c 9 * the Free Software Foundation; either version 2 of the License, or
wolfSSL 15:117db924cf7c 10 * (at your option) any later version.
wolfSSL 15:117db924cf7c 11 *
wolfSSL 15:117db924cf7c 12 * wolfSSL is distributed in the hope that it will be useful,
wolfSSL 15:117db924cf7c 13 * but WITHOUT ANY WARRANTY; without even the implied warranty of
wolfSSL 15:117db924cf7c 14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
wolfSSL 15:117db924cf7c 15 * GNU General Public License for more details.
wolfSSL 15:117db924cf7c 16 *
wolfSSL 15:117db924cf7c 17 * You should have received a copy of the GNU General Public License
wolfSSL 15:117db924cf7c 18 * along with this program; if not, write to the Free Software
wolfSSL 15:117db924cf7c 19 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1335, USA
wolfSSL 15:117db924cf7c 20 */
wolfSSL 15:117db924cf7c 21
wolfSSL 15:117db924cf7c 22 /*!
wolfSSL 15:117db924cf7c 23 \file wolfssl/wolfcrypt/ecc.h
wolfSSL 15:117db924cf7c 24 */
wolfSSL 15:117db924cf7c 25
wolfSSL 15:117db924cf7c 26
wolfSSL 15:117db924cf7c 27 #ifndef WOLF_CRYPT_ECC_H
wolfSSL 15:117db924cf7c 28 #define WOLF_CRYPT_ECC_H
wolfSSL 15:117db924cf7c 29
wolfSSL 15:117db924cf7c 30 #include <wolfssl/wolfcrypt/types.h>
wolfSSL 15:117db924cf7c 31
wolfSSL 15:117db924cf7c 32 #ifdef HAVE_ECC
wolfSSL 15:117db924cf7c 33
wolfSSL 15:117db924cf7c 34 #if defined(HAVE_FIPS_VERSION) && (HAVE_FIPS_VERSION >= 2)
wolfSSL 15:117db924cf7c 35 #include <wolfssl/wolfcrypt/fips.h>
wolfSSL 15:117db924cf7c 36 #endif /* HAVE_FIPS_VERSION >= 2 */
wolfSSL 15:117db924cf7c 37
wolfSSL 15:117db924cf7c 38 #include <wolfssl/wolfcrypt/integer.h>
wolfSSL 15:117db924cf7c 39 #include <wolfssl/wolfcrypt/random.h>
wolfSSL 15:117db924cf7c 40
wolfSSL 15:117db924cf7c 41 #ifdef HAVE_X963_KDF
wolfSSL 15:117db924cf7c 42 #include <wolfssl/wolfcrypt/hash.h>
wolfSSL 15:117db924cf7c 43 #endif
wolfSSL 15:117db924cf7c 44
wolfSSL 15:117db924cf7c 45 #ifdef WOLFSSL_ASYNC_CRYPT
wolfSSL 15:117db924cf7c 46 #include <wolfssl/wolfcrypt/async.h>
wolfSSL 15:117db924cf7c 47 #ifdef WOLFSSL_CERT_GEN
wolfSSL 15:117db924cf7c 48 #include <wolfssl/wolfcrypt/asn.h>
wolfSSL 15:117db924cf7c 49 #endif
wolfSSL 15:117db924cf7c 50 #endif
wolfSSL 15:117db924cf7c 51
wolfSSL 15:117db924cf7c 52 #ifdef WOLFSSL_ATECC508A
wolfSSL 15:117db924cf7c 53 #include <wolfssl/wolfcrypt/port/atmel/atmel.h>
wolfSSL 15:117db924cf7c 54 #endif /* WOLFSSL_ATECC508A */
wolfSSL 15:117db924cf7c 55
wolfSSL 15:117db924cf7c 56
wolfSSL 15:117db924cf7c 57 #ifdef __cplusplus
wolfSSL 15:117db924cf7c 58 extern "C" {
wolfSSL 15:117db924cf7c 59 #endif
wolfSSL 15:117db924cf7c 60
wolfSSL 15:117db924cf7c 61
wolfSSL 15:117db924cf7c 62 /* Enable curve B parameter if needed */
wolfSSL 15:117db924cf7c 63 #if defined(HAVE_COMP_KEY) || defined(ECC_CACHE_CURVE)
wolfSSL 15:117db924cf7c 64 #ifndef USE_ECC_B_PARAM /* Allow someone to force enable */
wolfSSL 15:117db924cf7c 65 #define USE_ECC_B_PARAM
wolfSSL 15:117db924cf7c 66 #endif
wolfSSL 15:117db924cf7c 67 #endif
wolfSSL 15:117db924cf7c 68
wolfSSL 15:117db924cf7c 69
wolfSSL 15:117db924cf7c 70 /* Use this as the key->idx if a custom ecc_set is used for key->dp */
wolfSSL 15:117db924cf7c 71 #define ECC_CUSTOM_IDX (-1)
wolfSSL 15:117db924cf7c 72
wolfSSL 15:117db924cf7c 73
wolfSSL 15:117db924cf7c 74 /* Determine max ECC bits based on enabled curves */
wolfSSL 15:117db924cf7c 75 #if defined(HAVE_ECC521) || defined(HAVE_ALL_CURVES)
wolfSSL 15:117db924cf7c 76 #define MAX_ECC_BITS 521
wolfSSL 15:117db924cf7c 77 #elif defined(HAVE_ECC512)
wolfSSL 15:117db924cf7c 78 #define MAX_ECC_BITS 512
wolfSSL 15:117db924cf7c 79 #elif defined(HAVE_ECC384)
wolfSSL 15:117db924cf7c 80 #define MAX_ECC_BITS 384
wolfSSL 15:117db924cf7c 81 #elif defined(HAVE_ECC320)
wolfSSL 15:117db924cf7c 82 #define MAX_ECC_BITS 320
wolfSSL 15:117db924cf7c 83 #elif !defined(NO_ECC256)
wolfSSL 15:117db924cf7c 84 #define MAX_ECC_BITS 256
wolfSSL 15:117db924cf7c 85 #elif defined(HAVE_ECC239)
wolfSSL 15:117db924cf7c 86 #define MAX_ECC_BITS 239
wolfSSL 15:117db924cf7c 87 #elif defined(HAVE_ECC224)
wolfSSL 15:117db924cf7c 88 #define MAX_ECC_BITS 224
wolfSSL 15:117db924cf7c 89 #elif defined(HAVE_ECC192)
wolfSSL 15:117db924cf7c 90 #define MAX_ECC_BITS 192
wolfSSL 15:117db924cf7c 91 #elif defined(HAVE_ECC160)
wolfSSL 15:117db924cf7c 92 #define MAX_ECC_BITS 160
wolfSSL 15:117db924cf7c 93 #elif defined(HAVE_ECC128)
wolfSSL 15:117db924cf7c 94 #define MAX_ECC_BITS 128
wolfSSL 15:117db924cf7c 95 #elif defined(HAVE_ECC112)
wolfSSL 15:117db924cf7c 96 #define MAX_ECC_BITS 112
wolfSSL 15:117db924cf7c 97 #endif
wolfSSL 15:117db924cf7c 98
wolfSSL 15:117db924cf7c 99 /* calculate max ECC bytes */
wolfSSL 15:117db924cf7c 100 #if ((MAX_ECC_BITS * 2) % 8) == 0
wolfSSL 15:117db924cf7c 101 #define MAX_ECC_BYTES (MAX_ECC_BITS / 8)
wolfSSL 15:117db924cf7c 102 #else
wolfSSL 15:117db924cf7c 103 /* add byte if not aligned */
wolfSSL 15:117db924cf7c 104 #define MAX_ECC_BYTES ((MAX_ECC_BITS / 8) + 1)
wolfSSL 15:117db924cf7c 105 #endif
wolfSSL 15:117db924cf7c 106
wolfSSL 15:117db924cf7c 107
wolfSSL 15:117db924cf7c 108 enum {
wolfSSL 15:117db924cf7c 109 ECC_PUBLICKEY = 1,
wolfSSL 15:117db924cf7c 110 ECC_PRIVATEKEY = 2,
wolfSSL 15:117db924cf7c 111 ECC_PRIVATEKEY_ONLY = 3,
wolfSSL 15:117db924cf7c 112 ECC_MAXNAME = 16, /* MAX CURVE NAME LENGTH */
wolfSSL 15:117db924cf7c 113 SIG_HEADER_SZ = 6, /* ECC signature header size */
wolfSSL 15:117db924cf7c 114 ECC_BUFSIZE = 256, /* for exported keys temp buffer */
wolfSSL 15:117db924cf7c 115 ECC_MINSIZE = 20, /* MIN Private Key size */
wolfSSL 15:117db924cf7c 116 ECC_MAXSIZE = 66, /* MAX Private Key size */
wolfSSL 15:117db924cf7c 117 ECC_MAXSIZE_GEN = 74, /* MAX Buffer size required when generating ECC keys*/
wolfSSL 15:117db924cf7c 118 ECC_MAX_PAD_SZ = 4, /* ECC maximum padding size */
wolfSSL 15:117db924cf7c 119 ECC_MAX_OID_LEN = 16,
wolfSSL 15:117db924cf7c 120 ECC_MAX_SIG_SIZE= ((MAX_ECC_BYTES * 2) + ECC_MAX_PAD_SZ + SIG_HEADER_SZ),
wolfSSL 15:117db924cf7c 121
wolfSSL 15:117db924cf7c 122 /* max crypto hardware size */
wolfSSL 15:117db924cf7c 123 #ifdef WOLFSSL_ATECC508A
wolfSSL 15:117db924cf7c 124 ECC_MAX_CRYPTO_HW_SIZE = ATECC_KEY_SIZE, /* from port/atmel/atmel.h */
wolfSSL 15:117db924cf7c 125 ECC_MAX_CRYPTO_HW_PUBKEY_SIZE = (ATECC_KEY_SIZE*2),
wolfSSL 15:117db924cf7c 126 #elif defined(PLUTON_CRYPTO_ECC)
wolfSSL 15:117db924cf7c 127 ECC_MAX_CRYPTO_HW_SIZE = 32,
wolfSSL 15:117db924cf7c 128 #endif
wolfSSL 15:117db924cf7c 129
wolfSSL 15:117db924cf7c 130 /* point encoding type */
wolfSSL 15:117db924cf7c 131 ECC_TYPE_HEX_STR = 1,
wolfSSL 15:117db924cf7c 132 ECC_TYPE_UNSIGNED_BIN = 2,
wolfSSL 15:117db924cf7c 133
wolfSSL 15:117db924cf7c 134 /* point compression type */
wolfSSL 15:117db924cf7c 135 ECC_POINT_COMP_EVEN = 0x02,
wolfSSL 15:117db924cf7c 136 ECC_POINT_COMP_ODD = 0x03,
wolfSSL 15:117db924cf7c 137 ECC_POINT_UNCOMP = 0x04,
wolfSSL 15:117db924cf7c 138
wolfSSL 15:117db924cf7c 139 /* Shamir's dual add constants */
wolfSSL 15:117db924cf7c 140 SHAMIR_PRECOMP_SZ = 16,
wolfSSL 15:117db924cf7c 141 };
wolfSSL 15:117db924cf7c 142
wolfSSL 15:117db924cf7c 143 /* Curve Types */
wolfSSL 15:117db924cf7c 144 typedef enum ecc_curve_id {
wolfSSL 15:117db924cf7c 145 ECC_CURVE_INVALID = -1,
wolfSSL 15:117db924cf7c 146 ECC_CURVE_DEF = 0, /* NIST or SECP */
wolfSSL 15:117db924cf7c 147
wolfSSL 15:117db924cf7c 148 /* NIST Prime Curves */
wolfSSL 15:117db924cf7c 149 ECC_SECP192R1,
wolfSSL 15:117db924cf7c 150 ECC_PRIME192V2,
wolfSSL 15:117db924cf7c 151 ECC_PRIME192V3,
wolfSSL 15:117db924cf7c 152 ECC_PRIME239V1,
wolfSSL 15:117db924cf7c 153 ECC_PRIME239V2,
wolfSSL 15:117db924cf7c 154 ECC_PRIME239V3,
wolfSSL 15:117db924cf7c 155 ECC_SECP256R1,
wolfSSL 15:117db924cf7c 156
wolfSSL 15:117db924cf7c 157 /* SECP Curves */
wolfSSL 15:117db924cf7c 158 ECC_SECP112R1,
wolfSSL 15:117db924cf7c 159 ECC_SECP112R2,
wolfSSL 15:117db924cf7c 160 ECC_SECP128R1,
wolfSSL 15:117db924cf7c 161 ECC_SECP128R2,
wolfSSL 15:117db924cf7c 162 ECC_SECP160R1,
wolfSSL 15:117db924cf7c 163 ECC_SECP160R2,
wolfSSL 15:117db924cf7c 164 ECC_SECP224R1,
wolfSSL 15:117db924cf7c 165 ECC_SECP384R1,
wolfSSL 15:117db924cf7c 166 ECC_SECP521R1,
wolfSSL 15:117db924cf7c 167
wolfSSL 15:117db924cf7c 168 /* Koblitz */
wolfSSL 15:117db924cf7c 169 ECC_SECP160K1,
wolfSSL 15:117db924cf7c 170 ECC_SECP192K1,
wolfSSL 15:117db924cf7c 171 ECC_SECP224K1,
wolfSSL 15:117db924cf7c 172 ECC_SECP256K1,
wolfSSL 15:117db924cf7c 173
wolfSSL 15:117db924cf7c 174 /* Brainpool Curves */
wolfSSL 15:117db924cf7c 175 ECC_BRAINPOOLP160R1,
wolfSSL 15:117db924cf7c 176 ECC_BRAINPOOLP192R1,
wolfSSL 15:117db924cf7c 177 ECC_BRAINPOOLP224R1,
wolfSSL 15:117db924cf7c 178 ECC_BRAINPOOLP256R1,
wolfSSL 15:117db924cf7c 179 ECC_BRAINPOOLP320R1,
wolfSSL 15:117db924cf7c 180 ECC_BRAINPOOLP384R1,
wolfSSL 15:117db924cf7c 181 ECC_BRAINPOOLP512R1,
wolfSSL 15:117db924cf7c 182
wolfSSL 15:117db924cf7c 183 /* Twisted Edwards Curves */
wolfSSL 15:117db924cf7c 184 #ifdef HAVE_CURVE25519
wolfSSL 15:117db924cf7c 185 ECC_X25519,
wolfSSL 15:117db924cf7c 186 #endif
wolfSSL 15:117db924cf7c 187 #ifdef HAVE_X448
wolfSSL 15:117db924cf7c 188 ECC_X448,
wolfSSL 15:117db924cf7c 189 #endif
wolfSSL 15:117db924cf7c 190
wolfSSL 15:117db924cf7c 191 #ifdef WOLFSSL_CUSTOM_CURVES
wolfSSL 15:117db924cf7c 192 ECC_CURVE_CUSTOM,
wolfSSL 15:117db924cf7c 193 #endif
wolfSSL 15:117db924cf7c 194 } ecc_curve_id;
wolfSSL 15:117db924cf7c 195
wolfSSL 15:117db924cf7c 196 #ifdef HAVE_OID_ENCODING
wolfSSL 15:117db924cf7c 197 typedef word16 ecc_oid_t;
wolfSSL 15:117db924cf7c 198 #else
wolfSSL 15:117db924cf7c 199 typedef byte ecc_oid_t;
wolfSSL 15:117db924cf7c 200 /* OID encoded with ASN scheme:
wolfSSL 15:117db924cf7c 201 first element = (oid[0] * 40) + oid[1]
wolfSSL 15:117db924cf7c 202 if any element > 127 then MSB 0x80 indicates additional byte */
wolfSSL 15:117db924cf7c 203 #endif
wolfSSL 15:117db924cf7c 204
wolfSSL 15:117db924cf7c 205 /* ECC set type defined a GF(p) curve */
wolfSSL 15:117db924cf7c 206 #ifndef USE_WINDOWS_API
wolfSSL 15:117db924cf7c 207 typedef struct ecc_set_type {
wolfSSL 15:117db924cf7c 208 int size; /* The size of the curve in octets */
wolfSSL 15:117db924cf7c 209 int id; /* id of this curve */
wolfSSL 15:117db924cf7c 210 const char* name; /* name of this curve */
wolfSSL 15:117db924cf7c 211 const char* prime; /* prime that defines the field, curve is in (hex) */
wolfSSL 15:117db924cf7c 212 const char* Af; /* fields A param (hex) */
wolfSSL 15:117db924cf7c 213 const char* Bf; /* fields B param (hex) */
wolfSSL 15:117db924cf7c 214 const char* order; /* order of the curve (hex) */
wolfSSL 15:117db924cf7c 215 const char* Gx; /* x coordinate of the base point on curve (hex) */
wolfSSL 15:117db924cf7c 216 const char* Gy; /* y coordinate of the base point on curve (hex) */
wolfSSL 15:117db924cf7c 217 const ecc_oid_t* oid;
wolfSSL 15:117db924cf7c 218 word32 oidSz;
wolfSSL 15:117db924cf7c 219 word32 oidSum; /* sum of encoded OID bytes */
wolfSSL 15:117db924cf7c 220 int cofactor;
wolfSSL 15:117db924cf7c 221 } ecc_set_type;
wolfSSL 15:117db924cf7c 222 #else
wolfSSL 15:117db924cf7c 223 /* MSC does something different with the pointers to the arrays than GCC,
wolfSSL 15:117db924cf7c 224 * and it causes the FIPS checksum to fail. In the case of windows builds,
wolfSSL 15:117db924cf7c 225 * store everything as arrays instead of pointers to strings. */
wolfSSL 15:117db924cf7c 226
wolfSSL 15:117db924cf7c 227 #define MAX_ECC_NAME 16
wolfSSL 15:117db924cf7c 228 #define MAX_ECC_STRING ((MAX_ECC_BYTES * 2) + 1)
wolfSSL 15:117db924cf7c 229 /* The values are stored as text strings. */
wolfSSL 15:117db924cf7c 230
wolfSSL 15:117db924cf7c 231 typedef struct ecc_set_type {
wolfSSL 15:117db924cf7c 232 int size; /* The size of the curve in octets */
wolfSSL 15:117db924cf7c 233 int id; /* id of this curve */
wolfSSL 15:117db924cf7c 234 const char name[MAX_ECC_NAME]; /* name of this curve */
wolfSSL 15:117db924cf7c 235 const char prime[MAX_ECC_STRING]; /* prime that defines the field, curve is in (hex) */
wolfSSL 15:117db924cf7c 236 const char Af[MAX_ECC_STRING]; /* fields A param (hex) */
wolfSSL 15:117db924cf7c 237 const char Bf[MAX_ECC_STRING]; /* fields B param (hex) */
wolfSSL 15:117db924cf7c 238 const char order[MAX_ECC_STRING]; /* order of the curve (hex) */
wolfSSL 15:117db924cf7c 239 const char Gx[MAX_ECC_STRING]; /* x coordinate of the base point on curve (hex) */
wolfSSL 15:117db924cf7c 240 const char Gy[MAX_ECC_STRING]; /* y coordinate of the base point on curve (hex) */
wolfSSL 15:117db924cf7c 241 const ecc_oid_t oid[10];
wolfSSL 15:117db924cf7c 242 word32 oidSz;
wolfSSL 15:117db924cf7c 243 word32 oidSum; /* sum of encoded OID bytes */
wolfSSL 15:117db924cf7c 244 int cofactor;
wolfSSL 15:117db924cf7c 245 } ecc_set_type;
wolfSSL 15:117db924cf7c 246 #endif
wolfSSL 15:117db924cf7c 247
wolfSSL 15:117db924cf7c 248
wolfSSL 15:117db924cf7c 249 #ifdef ALT_ECC_SIZE
wolfSSL 15:117db924cf7c 250
wolfSSL 15:117db924cf7c 251 /* Note on ALT_ECC_SIZE:
wolfSSL 15:117db924cf7c 252 * The fast math code uses an array of a fixed size to store the big integers.
wolfSSL 15:117db924cf7c 253 * By default, the array is big enough for RSA keys. There is a size,
wolfSSL 15:117db924cf7c 254 * FP_MAX_BITS which can be used to make the array smaller when one wants ECC
wolfSSL 15:117db924cf7c 255 * but not RSA. Some people want fast math sized for both RSA and ECC, where
wolfSSL 15:117db924cf7c 256 * ECC won't use as much as RSA. The flag ALT_ECC_SIZE switches in an alternate
wolfSSL 15:117db924cf7c 257 * ecc_point structure that uses an alternate fp_int that has a shorter array
wolfSSL 15:117db924cf7c 258 * of fp_digits.
wolfSSL 15:117db924cf7c 259 *
wolfSSL 15:117db924cf7c 260 * Now, without ALT_ECC_SIZE, the ecc_point has three single item arrays of
wolfSSL 15:117db924cf7c 261 * mp_ints for the components of the point. With ALT_ECC_SIZE, the components
wolfSSL 15:117db924cf7c 262 * of the point are pointers that are set to each of a three item array of
wolfSSL 15:117db924cf7c 263 * alt_fp_ints. While an mp_int will have 4096 bits of digit inside the
wolfSSL 15:117db924cf7c 264 * structure, the alt_fp_int will only have 528 bits. A size value was added
wolfSSL 15:117db924cf7c 265 * in the ALT case, as well, and is set by mp_init() and alt_fp_init(). The
wolfSSL 15:117db924cf7c 266 * functions fp_zero() and fp_copy() use the size parameter. An int needs to
wolfSSL 15:117db924cf7c 267 * be initialized before using it instead of just fp_zeroing it, the init will
wolfSSL 15:117db924cf7c 268 * call zero. FP_MAX_BITS_ECC defaults to 528, but can be set to change the
wolfSSL 15:117db924cf7c 269 * number of bits used in the alternate FP_INT.
wolfSSL 15:117db924cf7c 270 *
wolfSSL 15:117db924cf7c 271 * Do not enable ALT_ECC_SIZE and disable fast math in the configuration.
wolfSSL 15:117db924cf7c 272 */
wolfSSL 15:117db924cf7c 273
wolfSSL 15:117db924cf7c 274 #ifndef USE_FAST_MATH
wolfSSL 15:117db924cf7c 275 #error USE_FAST_MATH must be defined to use ALT_ECC_SIZE
wolfSSL 15:117db924cf7c 276 #endif
wolfSSL 15:117db924cf7c 277
wolfSSL 15:117db924cf7c 278 /* determine max bits required for ECC math */
wolfSSL 15:117db924cf7c 279 #ifndef FP_MAX_BITS_ECC
wolfSSL 15:117db924cf7c 280 /* check alignment */
wolfSSL 15:117db924cf7c 281 #if ((MAX_ECC_BITS * 2) % DIGIT_BIT) == 0
wolfSSL 15:117db924cf7c 282 /* max bits is double */
wolfSSL 15:117db924cf7c 283 #define FP_MAX_BITS_ECC (MAX_ECC_BITS * 2)
wolfSSL 15:117db924cf7c 284 #else
wolfSSL 15:117db924cf7c 285 /* max bits is doubled, plus one digit of fudge */
wolfSSL 15:117db924cf7c 286 #define FP_MAX_BITS_ECC ((MAX_ECC_BITS * 2) + DIGIT_BIT)
wolfSSL 15:117db924cf7c 287 #endif
wolfSSL 15:117db924cf7c 288 #else
wolfSSL 15:117db924cf7c 289 /* verify alignment */
wolfSSL 15:117db924cf7c 290 #if FP_MAX_BITS_ECC % CHAR_BIT
wolfSSL 15:117db924cf7c 291 #error FP_MAX_BITS_ECC must be a multiple of CHAR_BIT
wolfSSL 15:117db924cf7c 292 #endif
wolfSSL 15:117db924cf7c 293 #endif
wolfSSL 15:117db924cf7c 294
wolfSSL 15:117db924cf7c 295 /* determine buffer size */
wolfSSL 15:117db924cf7c 296 #define FP_SIZE_ECC (FP_MAX_BITS_ECC/DIGIT_BIT)
wolfSSL 15:117db924cf7c 297
wolfSSL 15:117db924cf7c 298
wolfSSL 15:117db924cf7c 299 /* This needs to match the size of the fp_int struct, except the
wolfSSL 15:117db924cf7c 300 * fp_digit array will be shorter. */
wolfSSL 15:117db924cf7c 301 typedef struct alt_fp_int {
wolfSSL 15:117db924cf7c 302 int used, sign, size;
wolfSSL 15:117db924cf7c 303 fp_digit dp[FP_SIZE_ECC];
wolfSSL 15:117db924cf7c 304 } alt_fp_int;
wolfSSL 15:117db924cf7c 305 #endif /* ALT_ECC_SIZE */
wolfSSL 15:117db924cf7c 306
wolfSSL 15:117db924cf7c 307 #ifndef WC_ECCKEY_TYPE_DEFINED
wolfSSL 15:117db924cf7c 308 typedef struct ecc_key ecc_key;
wolfSSL 15:117db924cf7c 309 #define WC_ECCKEY_TYPE_DEFINED
wolfSSL 15:117db924cf7c 310 #endif
wolfSSL 15:117db924cf7c 311
wolfSSL 15:117db924cf7c 312
wolfSSL 15:117db924cf7c 313 /* A point on an ECC curve, stored in Jacbobian format such that (x,y,z) =>
wolfSSL 15:117db924cf7c 314 (x/z^2, y/z^3, 1) when interpreted as affine */
wolfSSL 15:117db924cf7c 315 typedef struct {
wolfSSL 15:117db924cf7c 316 #ifndef ALT_ECC_SIZE
wolfSSL 15:117db924cf7c 317 mp_int x[1]; /* The x coordinate */
wolfSSL 15:117db924cf7c 318 mp_int y[1]; /* The y coordinate */
wolfSSL 15:117db924cf7c 319 mp_int z[1]; /* The z coordinate */
wolfSSL 15:117db924cf7c 320 #else
wolfSSL 15:117db924cf7c 321 mp_int* x; /* The x coordinate */
wolfSSL 15:117db924cf7c 322 mp_int* y; /* The y coordinate */
wolfSSL 15:117db924cf7c 323 mp_int* z; /* The z coordinate */
wolfSSL 15:117db924cf7c 324 alt_fp_int xyz[3];
wolfSSL 15:117db924cf7c 325 #endif
wolfSSL 15:117db924cf7c 326 #ifdef WOLFSSL_SMALL_STACK_CACHE
wolfSSL 15:117db924cf7c 327 ecc_key* key;
wolfSSL 15:117db924cf7c 328 #endif
wolfSSL 15:117db924cf7c 329 } ecc_point;
wolfSSL 15:117db924cf7c 330
wolfSSL 15:117db924cf7c 331 /* ECC Flags */
wolfSSL 15:117db924cf7c 332 enum {
wolfSSL 15:117db924cf7c 333 WC_ECC_FLAG_NONE = 0x00,
wolfSSL 15:117db924cf7c 334 #ifdef HAVE_ECC_CDH
wolfSSL 15:117db924cf7c 335 WC_ECC_FLAG_COFACTOR = 0x01,
wolfSSL 15:117db924cf7c 336 #endif
wolfSSL 15:117db924cf7c 337 };
wolfSSL 15:117db924cf7c 338
wolfSSL 15:117db924cf7c 339 /* An ECC Key */
wolfSSL 15:117db924cf7c 340 struct ecc_key {
wolfSSL 15:117db924cf7c 341 int type; /* Public or Private */
wolfSSL 15:117db924cf7c 342 int idx; /* Index into the ecc_sets[] for the parameters of
wolfSSL 15:117db924cf7c 343 this curve if -1, this key is using user supplied
wolfSSL 15:117db924cf7c 344 curve in dp */
wolfSSL 15:117db924cf7c 345 int state;
wolfSSL 15:117db924cf7c 346 word32 flags;
wolfSSL 15:117db924cf7c 347 const ecc_set_type* dp; /* domain parameters, either points to NIST
wolfSSL 15:117db924cf7c 348 curves (idx >= 0) or user supplied */
wolfSSL 15:117db924cf7c 349 #ifdef WOLFSSL_CUSTOM_CURVES
wolfSSL 15:117db924cf7c 350 int deallocSet;
wolfSSL 15:117db924cf7c 351 #endif
wolfSSL 15:117db924cf7c 352 void* heap; /* heap hint */
wolfSSL 15:117db924cf7c 353 ecc_point pubkey; /* public key */
wolfSSL 15:117db924cf7c 354 mp_int k; /* private key */
wolfSSL 15:117db924cf7c 355 #ifdef WOLFSSL_ATECC508A
wolfSSL 15:117db924cf7c 356 int slot; /* Key Slot Number (-1 unknown) */
wolfSSL 15:117db924cf7c 357 byte pubkey_raw[ECC_MAX_CRYPTO_HW_PUBKEY_SIZE];
wolfSSL 15:117db924cf7c 358 #endif
wolfSSL 15:117db924cf7c 359 #if defined(PLUTON_CRYPTO_ECC) || defined(WOLF_CRYPTO_DEV)
wolfSSL 15:117db924cf7c 360 int devId;
wolfSSL 15:117db924cf7c 361 #endif
wolfSSL 15:117db924cf7c 362 #ifdef WOLFSSL_ASYNC_CRYPT
wolfSSL 15:117db924cf7c 363 mp_int* r; /* sign/verify temps */
wolfSSL 15:117db924cf7c 364 mp_int* s;
wolfSSL 15:117db924cf7c 365 WC_ASYNC_DEV asyncDev;
wolfSSL 15:117db924cf7c 366 #ifdef HAVE_CAVIUM_V
wolfSSL 15:117db924cf7c 367 mp_int* e; /* Sign, Verify and Shared Secret */
wolfSSL 15:117db924cf7c 368 mp_int* signK;
wolfSSL 15:117db924cf7c 369 #endif
wolfSSL 15:117db924cf7c 370 #ifdef WOLFSSL_CERT_GEN
wolfSSL 15:117db924cf7c 371 CertSignCtx certSignCtx; /* context info for cert sign (MakeSignature) */
wolfSSL 15:117db924cf7c 372 #endif
wolfSSL 15:117db924cf7c 373 #endif /* WOLFSSL_ASYNC_CRYPT */
wolfSSL 15:117db924cf7c 374 #ifdef WOLFSSL_SMALL_STACK_CACHE
wolfSSL 15:117db924cf7c 375 mp_int* t1;
wolfSSL 15:117db924cf7c 376 mp_int* t2;
wolfSSL 15:117db924cf7c 377 #ifdef ALT_ECC_SIZE
wolfSSL 15:117db924cf7c 378 mp_int* x;
wolfSSL 15:117db924cf7c 379 mp_int* y;
wolfSSL 15:117db924cf7c 380 mp_int* z;
wolfSSL 15:117db924cf7c 381 #endif
wolfSSL 15:117db924cf7c 382 #endif
wolfSSL 15:117db924cf7c 383 };
wolfSSL 15:117db924cf7c 384
wolfSSL 15:117db924cf7c 385
wolfSSL 15:117db924cf7c 386 /* ECC predefined curve sets */
wolfSSL 15:117db924cf7c 387 extern const ecc_set_type ecc_sets[];
wolfSSL 15:117db924cf7c 388
wolfSSL 15:117db924cf7c 389 WOLFSSL_API
wolfSSL 15:117db924cf7c 390 const char* wc_ecc_get_name(int curve_id);
wolfSSL 15:117db924cf7c 391
wolfSSL 15:117db924cf7c 392 #ifndef WOLFSSL_ATECC508A
wolfSSL 15:117db924cf7c 393
wolfSSL 15:117db924cf7c 394 #ifdef WOLFSSL_PUBLIC_ECC_ADD_DBL
wolfSSL 15:117db924cf7c 395 #define ECC_API WOLFSSL_API
wolfSSL 15:117db924cf7c 396 #else
wolfSSL 15:117db924cf7c 397 #define ECC_API WOLFSSL_LOCAL
wolfSSL 15:117db924cf7c 398 #endif
wolfSSL 15:117db924cf7c 399
wolfSSL 15:117db924cf7c 400 ECC_API int ecc_mul2add(ecc_point* A, mp_int* kA,
wolfSSL 15:117db924cf7c 401 ecc_point* B, mp_int* kB,
wolfSSL 15:117db924cf7c 402 ecc_point* C, mp_int* a, mp_int* modulus, void* heap);
wolfSSL 15:117db924cf7c 403
wolfSSL 15:117db924cf7c 404 ECC_API int ecc_map(ecc_point*, mp_int*, mp_digit);
wolfSSL 15:117db924cf7c 405 ECC_API int ecc_projective_add_point(ecc_point* P, ecc_point* Q, ecc_point* R,
wolfSSL 15:117db924cf7c 406 mp_int* a, mp_int* modulus, mp_digit mp);
wolfSSL 15:117db924cf7c 407 ECC_API int ecc_projective_dbl_point(ecc_point* P, ecc_point* R, mp_int* a,
wolfSSL 15:117db924cf7c 408 mp_int* modulus, mp_digit mp);
wolfSSL 15:117db924cf7c 409
wolfSSL 15:117db924cf7c 410 #endif
wolfSSL 15:117db924cf7c 411
wolfSSL 15:117db924cf7c 412 WOLFSSL_API
wolfSSL 15:117db924cf7c 413 int wc_ecc_make_key(WC_RNG* rng, int keysize, ecc_key* key);
wolfSSL 15:117db924cf7c 414 WOLFSSL_API
wolfSSL 15:117db924cf7c 415 int wc_ecc_make_key_ex(WC_RNG* rng, int keysize, ecc_key* key,
wolfSSL 15:117db924cf7c 416 int curve_id);
wolfSSL 15:117db924cf7c 417 WOLFSSL_API
wolfSSL 15:117db924cf7c 418 int wc_ecc_make_pub(ecc_key* key, ecc_point* pubOut);
wolfSSL 15:117db924cf7c 419 WOLFSSL_API
wolfSSL 15:117db924cf7c 420 int wc_ecc_check_key(ecc_key* key);
wolfSSL 15:117db924cf7c 421 WOLFSSL_API
wolfSSL 15:117db924cf7c 422 int wc_ecc_is_point(ecc_point* ecp, mp_int* a, mp_int* b, mp_int* prime);
wolfSSL 15:117db924cf7c 423
wolfSSL 15:117db924cf7c 424 #ifdef HAVE_ECC_DHE
wolfSSL 15:117db924cf7c 425 WOLFSSL_API
wolfSSL 15:117db924cf7c 426 int wc_ecc_shared_secret(ecc_key* private_key, ecc_key* public_key, byte* out,
wolfSSL 15:117db924cf7c 427 word32* outlen);
wolfSSL 15:117db924cf7c 428 WOLFSSL_LOCAL
wolfSSL 15:117db924cf7c 429 int wc_ecc_shared_secret_gen(ecc_key* private_key, ecc_point* point,
wolfSSL 15:117db924cf7c 430 byte* out, word32 *outlen);
wolfSSL 15:117db924cf7c 431 WOLFSSL_API
wolfSSL 15:117db924cf7c 432 int wc_ecc_shared_secret_ex(ecc_key* private_key, ecc_point* point,
wolfSSL 15:117db924cf7c 433 byte* out, word32 *outlen);
wolfSSL 15:117db924cf7c 434 #define wc_ecc_shared_secret_ssh wc_ecc_shared_secret_ex /* For backwards compat */
wolfSSL 15:117db924cf7c 435 #endif /* HAVE_ECC_DHE */
wolfSSL 15:117db924cf7c 436
wolfSSL 15:117db924cf7c 437 #ifdef HAVE_ECC_SIGN
wolfSSL 15:117db924cf7c 438 WOLFSSL_API
wolfSSL 15:117db924cf7c 439 int wc_ecc_sign_hash(const byte* in, word32 inlen, byte* out, word32 *outlen,
wolfSSL 15:117db924cf7c 440 WC_RNG* rng, ecc_key* key);
wolfSSL 15:117db924cf7c 441 WOLFSSL_API
wolfSSL 15:117db924cf7c 442 int wc_ecc_sign_hash_ex(const byte* in, word32 inlen, WC_RNG* rng,
wolfSSL 15:117db924cf7c 443 ecc_key* key, mp_int *r, mp_int *s);
wolfSSL 15:117db924cf7c 444 #endif /* HAVE_ECC_SIGN */
wolfSSL 15:117db924cf7c 445
wolfSSL 15:117db924cf7c 446 #ifdef HAVE_ECC_VERIFY
wolfSSL 15:117db924cf7c 447 WOLFSSL_API
wolfSSL 15:117db924cf7c 448 int wc_ecc_verify_hash(const byte* sig, word32 siglen, const byte* hash,
wolfSSL 15:117db924cf7c 449 word32 hashlen, int* stat, ecc_key* key);
wolfSSL 15:117db924cf7c 450 WOLFSSL_API
wolfSSL 15:117db924cf7c 451 int wc_ecc_verify_hash_ex(mp_int *r, mp_int *s, const byte* hash,
wolfSSL 15:117db924cf7c 452 word32 hashlen, int* stat, ecc_key* key);
wolfSSL 15:117db924cf7c 453 #endif /* HAVE_ECC_VERIFY */
wolfSSL 15:117db924cf7c 454
wolfSSL 15:117db924cf7c 455 WOLFSSL_API
wolfSSL 15:117db924cf7c 456 int wc_ecc_init(ecc_key* key);
wolfSSL 15:117db924cf7c 457 WOLFSSL_API
wolfSSL 15:117db924cf7c 458 int wc_ecc_init_ex(ecc_key* key, void* heap, int devId);
wolfSSL 15:117db924cf7c 459 #ifdef WOLFSSL_CUSTOM_CURVES
wolfSSL 15:117db924cf7c 460 WOLFSSL_LOCAL
wolfSSL 15:117db924cf7c 461 void wc_ecc_free_curve(const ecc_set_type* curve, void* heap);
wolfSSL 15:117db924cf7c 462 #endif
wolfSSL 15:117db924cf7c 463 WOLFSSL_API
wolfSSL 15:117db924cf7c 464 int wc_ecc_free(ecc_key* key);
wolfSSL 15:117db924cf7c 465 WOLFSSL_API
wolfSSL 15:117db924cf7c 466 int wc_ecc_set_flags(ecc_key* key, word32 flags);
wolfSSL 15:117db924cf7c 467 WOLFSSL_API
wolfSSL 15:117db924cf7c 468 void wc_ecc_fp_free(void);
wolfSSL 15:117db924cf7c 469
wolfSSL 15:117db924cf7c 470 WOLFSSL_API
wolfSSL 15:117db924cf7c 471 int wc_ecc_set_curve(ecc_key* key, int keysize, int curve_id);
wolfSSL 15:117db924cf7c 472
wolfSSL 15:117db924cf7c 473 WOLFSSL_API
wolfSSL 15:117db924cf7c 474 int wc_ecc_is_valid_idx(int n);
wolfSSL 15:117db924cf7c 475 WOLFSSL_API
wolfSSL 15:117db924cf7c 476 int wc_ecc_get_curve_idx(int curve_id);
wolfSSL 15:117db924cf7c 477 WOLFSSL_API
wolfSSL 15:117db924cf7c 478 int wc_ecc_get_curve_id(int curve_idx);
wolfSSL 15:117db924cf7c 479 #define wc_ecc_get_curve_name_from_id wc_ecc_get_name
wolfSSL 15:117db924cf7c 480 WOLFSSL_API
wolfSSL 15:117db924cf7c 481 int wc_ecc_get_curve_size_from_id(int curve_id);
wolfSSL 15:117db924cf7c 482
wolfSSL 15:117db924cf7c 483 WOLFSSL_API
wolfSSL 15:117db924cf7c 484 int wc_ecc_get_curve_idx_from_name(const char* curveName);
wolfSSL 15:117db924cf7c 485 WOLFSSL_API
wolfSSL 15:117db924cf7c 486 int wc_ecc_get_curve_size_from_name(const char* curveName);
wolfSSL 15:117db924cf7c 487 WOLFSSL_API
wolfSSL 15:117db924cf7c 488 int wc_ecc_get_curve_id_from_name(const char* curveName);
wolfSSL 15:117db924cf7c 489 WOLFSSL_API
wolfSSL 15:117db924cf7c 490 int wc_ecc_get_curve_id_from_params(int fieldSize,
wolfSSL 15:117db924cf7c 491 const byte* prime, word32 primeSz, const byte* Af, word32 AfSz,
wolfSSL 15:117db924cf7c 492 const byte* Bf, word32 BfSz, const byte* order, word32 orderSz,
wolfSSL 15:117db924cf7c 493 const byte* Gx, word32 GxSz, const byte* Gy, word32 GySz, int cofactor);
wolfSSL 15:117db924cf7c 494
wolfSSL 15:117db924cf7c 495
wolfSSL 15:117db924cf7c 496 WOLFSSL_API
wolfSSL 15:117db924cf7c 497 ecc_point* wc_ecc_new_point(void);
wolfSSL 15:117db924cf7c 498 WOLFSSL_API
wolfSSL 15:117db924cf7c 499 ecc_point* wc_ecc_new_point_h(void* h);
wolfSSL 15:117db924cf7c 500 WOLFSSL_API
wolfSSL 15:117db924cf7c 501 void wc_ecc_del_point(ecc_point* p);
wolfSSL 15:117db924cf7c 502 WOLFSSL_API
wolfSSL 15:117db924cf7c 503 void wc_ecc_del_point_h(ecc_point* p, void* h);
wolfSSL 15:117db924cf7c 504 WOLFSSL_API
wolfSSL 15:117db924cf7c 505 int wc_ecc_copy_point(ecc_point* p, ecc_point *r);
wolfSSL 15:117db924cf7c 506 WOLFSSL_API
wolfSSL 15:117db924cf7c 507 int wc_ecc_cmp_point(ecc_point* a, ecc_point *b);
wolfSSL 15:117db924cf7c 508 WOLFSSL_API
wolfSSL 15:117db924cf7c 509 int wc_ecc_point_is_at_infinity(ecc_point *p);
wolfSSL 15:117db924cf7c 510
wolfSSL 15:117db924cf7c 511 #ifndef WOLFSSL_ATECC508A
wolfSSL 15:117db924cf7c 512 WOLFSSL_API
wolfSSL 15:117db924cf7c 513 int wc_ecc_mulmod(mp_int* k, ecc_point *G, ecc_point *R,
wolfSSL 15:117db924cf7c 514 mp_int* a, mp_int* modulus, int map);
wolfSSL 15:117db924cf7c 515 WOLFSSL_LOCAL
wolfSSL 15:117db924cf7c 516 int wc_ecc_mulmod_ex(mp_int* k, ecc_point *G, ecc_point *R,
wolfSSL 15:117db924cf7c 517 mp_int* a, mp_int* modulus, int map, void* heap);
wolfSSL 15:117db924cf7c 518 #endif /* !WOLFSSL_ATECC508A */
wolfSSL 15:117db924cf7c 519
wolfSSL 15:117db924cf7c 520
wolfSSL 15:117db924cf7c 521 #ifdef HAVE_ECC_KEY_EXPORT
wolfSSL 15:117db924cf7c 522 /* ASN key helpers */
wolfSSL 15:117db924cf7c 523 WOLFSSL_API
wolfSSL 15:117db924cf7c 524 int wc_ecc_export_x963(ecc_key*, byte* out, word32* outLen);
wolfSSL 15:117db924cf7c 525 WOLFSSL_API
wolfSSL 15:117db924cf7c 526 int wc_ecc_export_x963_ex(ecc_key*, byte* out, word32* outLen, int compressed);
wolfSSL 15:117db924cf7c 527 /* extended functionality with compressed option */
wolfSSL 15:117db924cf7c 528 #endif /* HAVE_ECC_KEY_EXPORT */
wolfSSL 15:117db924cf7c 529
wolfSSL 15:117db924cf7c 530 #ifdef HAVE_ECC_KEY_IMPORT
wolfSSL 15:117db924cf7c 531 WOLFSSL_API
wolfSSL 15:117db924cf7c 532 int wc_ecc_import_x963(const byte* in, word32 inLen, ecc_key* key);
wolfSSL 15:117db924cf7c 533 WOLFSSL_API
wolfSSL 15:117db924cf7c 534 int wc_ecc_import_x963_ex(const byte* in, word32 inLen, ecc_key* key,
wolfSSL 15:117db924cf7c 535 int curve_id);
wolfSSL 15:117db924cf7c 536 WOLFSSL_API
wolfSSL 15:117db924cf7c 537 int wc_ecc_import_private_key(const byte* priv, word32 privSz, const byte* pub,
wolfSSL 15:117db924cf7c 538 word32 pubSz, ecc_key* key);
wolfSSL 15:117db924cf7c 539 WOLFSSL_API
wolfSSL 15:117db924cf7c 540 int wc_ecc_import_private_key_ex(const byte* priv, word32 privSz,
wolfSSL 15:117db924cf7c 541 const byte* pub, word32 pubSz, ecc_key* key, int curve_id);
wolfSSL 15:117db924cf7c 542 WOLFSSL_API
wolfSSL 15:117db924cf7c 543 int wc_ecc_rs_to_sig(const char* r, const char* s, byte* out, word32* outlen);
wolfSSL 15:117db924cf7c 544 WOLFSSL_API
wolfSSL 15:117db924cf7c 545 int wc_ecc_rs_raw_to_sig(const byte* r, word32 rSz, const byte* s, word32 sSz,
wolfSSL 15:117db924cf7c 546 byte* out, word32* outlen);
wolfSSL 15:117db924cf7c 547 WOLFSSL_API
wolfSSL 15:117db924cf7c 548 int wc_ecc_sig_to_rs(const byte* sig, word32 sigLen, byte* r, word32* rLen,
wolfSSL 15:117db924cf7c 549 byte* s, word32* sLen);
wolfSSL 15:117db924cf7c 550 WOLFSSL_API
wolfSSL 15:117db924cf7c 551 int wc_ecc_import_raw(ecc_key* key, const char* qx, const char* qy,
wolfSSL 15:117db924cf7c 552 const char* d, const char* curveName);
wolfSSL 15:117db924cf7c 553 WOLFSSL_API
wolfSSL 15:117db924cf7c 554 int wc_ecc_import_raw_ex(ecc_key* key, const char* qx, const char* qy,
wolfSSL 15:117db924cf7c 555 const char* d, int curve_id);
wolfSSL 15:117db924cf7c 556 WOLFSSL_API
wolfSSL 15:117db924cf7c 557 int wc_ecc_import_unsigned(ecc_key* key, byte* qx, byte* qy,
wolfSSL 15:117db924cf7c 558 byte* d, int curve_id);
wolfSSL 15:117db924cf7c 559 #endif /* HAVE_ECC_KEY_IMPORT */
wolfSSL 15:117db924cf7c 560
wolfSSL 15:117db924cf7c 561 #ifdef HAVE_ECC_KEY_EXPORT
wolfSSL 15:117db924cf7c 562 WOLFSSL_API
wolfSSL 15:117db924cf7c 563 int wc_ecc_export_private_only(ecc_key* key, byte* out, word32* outLen);
wolfSSL 15:117db924cf7c 564 WOLFSSL_API
wolfSSL 15:117db924cf7c 565 int wc_ecc_export_public_raw(ecc_key* key, byte* qx, word32* qxLen,
wolfSSL 15:117db924cf7c 566 byte* qy, word32* qyLen);
wolfSSL 15:117db924cf7c 567 WOLFSSL_API
wolfSSL 15:117db924cf7c 568 int wc_ecc_export_private_raw(ecc_key* key, byte* qx, word32* qxLen,
wolfSSL 15:117db924cf7c 569 byte* qy, word32* qyLen, byte* d, word32* dLen);
wolfSSL 15:117db924cf7c 570 #endif /* HAVE_ECC_KEY_EXPORT */
wolfSSL 15:117db924cf7c 571
wolfSSL 15:117db924cf7c 572 #ifdef HAVE_ECC_KEY_EXPORT
wolfSSL 15:117db924cf7c 573
wolfSSL 15:117db924cf7c 574 WOLFSSL_API
wolfSSL 15:117db924cf7c 575 int wc_ecc_export_point_der(const int curve_idx, ecc_point* point,
wolfSSL 15:117db924cf7c 576 byte* out, word32* outLen);
wolfSSL 15:117db924cf7c 577 #endif /* HAVE_ECC_KEY_EXPORT */
wolfSSL 15:117db924cf7c 578
wolfSSL 15:117db924cf7c 579
wolfSSL 15:117db924cf7c 580 #ifdef HAVE_ECC_KEY_IMPORT
wolfSSL 15:117db924cf7c 581 WOLFSSL_API
wolfSSL 15:117db924cf7c 582 int wc_ecc_import_point_der(byte* in, word32 inLen, const int curve_idx,
wolfSSL 15:117db924cf7c 583 ecc_point* point);
wolfSSL 15:117db924cf7c 584 #endif /* HAVE_ECC_KEY_IMPORT */
wolfSSL 15:117db924cf7c 585
wolfSSL 15:117db924cf7c 586 /* size helper */
wolfSSL 15:117db924cf7c 587 WOLFSSL_API
wolfSSL 15:117db924cf7c 588 int wc_ecc_size(ecc_key* key);
wolfSSL 15:117db924cf7c 589 WOLFSSL_API
wolfSSL 15:117db924cf7c 590 int wc_ecc_sig_size_calc(int sz);
wolfSSL 15:117db924cf7c 591 WOLFSSL_API
wolfSSL 15:117db924cf7c 592 int wc_ecc_sig_size(ecc_key* key);
wolfSSL 15:117db924cf7c 593
wolfSSL 15:117db924cf7c 594 WOLFSSL_API
wolfSSL 15:117db924cf7c 595 int wc_ecc_get_oid(word32 oidSum, const byte** oid, word32* oidSz);
wolfSSL 15:117db924cf7c 596
wolfSSL 15:117db924cf7c 597 #ifdef WOLFSSL_CUSTOM_CURVES
wolfSSL 15:117db924cf7c 598 WOLFSSL_API
wolfSSL 15:117db924cf7c 599 int wc_ecc_set_custom_curve(ecc_key* key, const ecc_set_type* dp);
wolfSSL 15:117db924cf7c 600 #endif
wolfSSL 15:117db924cf7c 601
wolfSSL 15:117db924cf7c 602 #ifdef HAVE_ECC_ENCRYPT
wolfSSL 15:117db924cf7c 603 /* ecc encrypt */
wolfSSL 15:117db924cf7c 604
wolfSSL 15:117db924cf7c 605 enum ecEncAlgo {
wolfSSL 15:117db924cf7c 606 ecAES_128_CBC = 1, /* default */
wolfSSL 15:117db924cf7c 607 ecAES_256_CBC = 2
wolfSSL 15:117db924cf7c 608 };
wolfSSL 15:117db924cf7c 609
wolfSSL 15:117db924cf7c 610 enum ecKdfAlgo {
wolfSSL 15:117db924cf7c 611 ecHKDF_SHA256 = 1, /* default */
wolfSSL 15:117db924cf7c 612 ecHKDF_SHA1 = 2
wolfSSL 15:117db924cf7c 613 };
wolfSSL 15:117db924cf7c 614
wolfSSL 15:117db924cf7c 615 enum ecMacAlgo {
wolfSSL 15:117db924cf7c 616 ecHMAC_SHA256 = 1, /* default */
wolfSSL 15:117db924cf7c 617 ecHMAC_SHA1 = 2
wolfSSL 15:117db924cf7c 618 };
wolfSSL 15:117db924cf7c 619
wolfSSL 15:117db924cf7c 620 enum {
wolfSSL 15:117db924cf7c 621 KEY_SIZE_128 = 16,
wolfSSL 15:117db924cf7c 622 KEY_SIZE_256 = 32,
wolfSSL 15:117db924cf7c 623 IV_SIZE_64 = 8,
wolfSSL 15:117db924cf7c 624 IV_SIZE_128 = 16,
wolfSSL 15:117db924cf7c 625 EXCHANGE_SALT_SZ = 16,
wolfSSL 15:117db924cf7c 626 EXCHANGE_INFO_SZ = 23
wolfSSL 15:117db924cf7c 627 };
wolfSSL 15:117db924cf7c 628
wolfSSL 15:117db924cf7c 629 enum ecFlags {
wolfSSL 15:117db924cf7c 630 REQ_RESP_CLIENT = 1,
wolfSSL 15:117db924cf7c 631 REQ_RESP_SERVER = 2
wolfSSL 15:117db924cf7c 632 };
wolfSSL 15:117db924cf7c 633
wolfSSL 15:117db924cf7c 634
wolfSSL 15:117db924cf7c 635 typedef struct ecEncCtx ecEncCtx;
wolfSSL 15:117db924cf7c 636
wolfSSL 15:117db924cf7c 637 WOLFSSL_API
wolfSSL 15:117db924cf7c 638 ecEncCtx* wc_ecc_ctx_new(int flags, WC_RNG* rng);
wolfSSL 15:117db924cf7c 639 WOLFSSL_API
wolfSSL 15:117db924cf7c 640 ecEncCtx* wc_ecc_ctx_new_ex(int flags, WC_RNG* rng, void* heap);
wolfSSL 15:117db924cf7c 641 WOLFSSL_API
wolfSSL 15:117db924cf7c 642 void wc_ecc_ctx_free(ecEncCtx*);
wolfSSL 15:117db924cf7c 643 WOLFSSL_API
wolfSSL 15:117db924cf7c 644 int wc_ecc_ctx_reset(ecEncCtx*, WC_RNG*); /* reset for use again w/o alloc/free */
wolfSSL 15:117db924cf7c 645
wolfSSL 15:117db924cf7c 646 WOLFSSL_API
wolfSSL 15:117db924cf7c 647 const byte* wc_ecc_ctx_get_own_salt(ecEncCtx*);
wolfSSL 15:117db924cf7c 648 WOLFSSL_API
wolfSSL 15:117db924cf7c 649 int wc_ecc_ctx_set_peer_salt(ecEncCtx*, const byte* salt);
wolfSSL 15:117db924cf7c 650 WOLFSSL_API
wolfSSL 15:117db924cf7c 651 int wc_ecc_ctx_set_info(ecEncCtx*, const byte* info, int sz);
wolfSSL 15:117db924cf7c 652
wolfSSL 15:117db924cf7c 653 WOLFSSL_API
wolfSSL 15:117db924cf7c 654 int wc_ecc_encrypt(ecc_key* privKey, ecc_key* pubKey, const byte* msg,
wolfSSL 15:117db924cf7c 655 word32 msgSz, byte* out, word32* outSz, ecEncCtx* ctx);
wolfSSL 15:117db924cf7c 656 WOLFSSL_API
wolfSSL 15:117db924cf7c 657 int wc_ecc_decrypt(ecc_key* privKey, ecc_key* pubKey, const byte* msg,
wolfSSL 15:117db924cf7c 658 word32 msgSz, byte* out, word32* outSz, ecEncCtx* ctx);
wolfSSL 15:117db924cf7c 659
wolfSSL 15:117db924cf7c 660 #endif /* HAVE_ECC_ENCRYPT */
wolfSSL 15:117db924cf7c 661
wolfSSL 15:117db924cf7c 662 #ifdef HAVE_X963_KDF
wolfSSL 15:117db924cf7c 663 WOLFSSL_API int wc_X963_KDF(enum wc_HashType type, const byte* secret,
wolfSSL 15:117db924cf7c 664 word32 secretSz, const byte* sinfo, word32 sinfoSz,
wolfSSL 15:117db924cf7c 665 byte* out, word32 outSz);
wolfSSL 15:117db924cf7c 666 #endif
wolfSSL 15:117db924cf7c 667
wolfSSL 15:117db924cf7c 668 #ifdef ECC_CACHE_CURVE
wolfSSL 15:117db924cf7c 669 WOLFSSL_API int wc_ecc_curve_cache_init(void);
wolfSSL 15:117db924cf7c 670 WOLFSSL_API void wc_ecc_curve_cache_free(void);
wolfSSL 15:117db924cf7c 671 #endif
wolfSSL 15:117db924cf7c 672
wolfSSL 15:117db924cf7c 673
wolfSSL 15:117db924cf7c 674 #ifdef __cplusplus
wolfSSL 15:117db924cf7c 675 } /* extern "C" */
wolfSSL 15:117db924cf7c 676 #endif
wolfSSL 15:117db924cf7c 677
wolfSSL 15:117db924cf7c 678 #endif /* HAVE_ECC */
wolfSSL 15:117db924cf7c 679 #endif /* WOLF_CRYPT_ECC_H */
wolfSSL 15:117db924cf7c 680