OVMS3/OVMS.V3/components/wolfssl/mcapi/crypto.h

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/* crypto.h
*
* Copyright (C) 2006-2020 wolfSSL Inc.
*
* This file is part of wolfSSL.
*
* wolfSSL is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* wolfSSL is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1335, USA
*/
/* Defines Microchip CRYPTO API layer */
#ifndef MC_CRYPTO_API_H
#define MC_CRYPTO_API_H
#ifdef __cplusplus
extern "C" {
#endif
/* MD5 */
typedef struct CRYPT_MD5_CTX {
int holder[28]; /* big enough to hold internal, but check on init */
} CRYPT_MD5_CTX;
int CRYPT_MD5_Initialize(CRYPT_MD5_CTX*);
int CRYPT_MD5_DataAdd(CRYPT_MD5_CTX*, const unsigned char*, unsigned int);
int CRYPT_MD5_Finalize(CRYPT_MD5_CTX*, unsigned char*);
int CRYPT_MD5_DataSizeSet(CRYPT_MD5_CTX* md5, unsigned int sz);
enum {
CRYPT_MD5_DIGEST_SIZE = 16
};
/* SHA */
typedef struct CRYPT_SHA_CTX {
int holder[29]; /* big enough to hold internal, but check on init */
} CRYPT_SHA_CTX;
int CRYPT_SHA_Initialize(CRYPT_SHA_CTX*);
int CRYPT_SHA_DataAdd(CRYPT_SHA_CTX*, const unsigned char*, unsigned int);
int CRYPT_SHA_Finalize(CRYPT_SHA_CTX*, unsigned char*);
int CRYPT_SHA_DataSizeSet(CRYPT_SHA_CTX* sha, unsigned int sz);
enum {
CRYPT_SHA_DIGEST_SIZE = 20
};
/* SHA-256 */
typedef struct CRYPT_SHA256_CTX {
int holder[32]; /* big enough to hold internal, but check on init */
} CRYPT_SHA256_CTX;
int CRYPT_SHA256_Initialize(CRYPT_SHA256_CTX*);
int CRYPT_SHA256_DataAdd(CRYPT_SHA256_CTX*, const unsigned char*, unsigned int);
int CRYPT_SHA256_Finalize(CRYPT_SHA256_CTX*, unsigned char*);
int CRYPT_SHA256_DataSizeSet(CRYPT_SHA256_CTX* sha256, unsigned int sz);
enum {
CRYPT_SHA256_DIGEST_SIZE = 32
};
/* SHA-384 */
typedef struct CRYPT_SHA384_CTX {
long long holder[36]; /* big enough to hold internal, but check on init */
} CRYPT_SHA384_CTX;
int CRYPT_SHA384_Initialize(CRYPT_SHA384_CTX*);
int CRYPT_SHA384_DataAdd(CRYPT_SHA384_CTX*, const unsigned char*, unsigned int);
int CRYPT_SHA384_Finalize(CRYPT_SHA384_CTX*, unsigned char*);
enum {
CRYPT_SHA384_DIGEST_SIZE = 48
};
/* SHA-512 */
typedef struct CRYPT_SHA512_CTX {
long long holder[36]; /* big enough to hold internal, but check on init */
} CRYPT_SHA512_CTX;
int CRYPT_SHA512_Initialize(CRYPT_SHA512_CTX*);
int CRYPT_SHA512_DataAdd(CRYPT_SHA512_CTX*, const unsigned char*, unsigned int);
int CRYPT_SHA512_Finalize(CRYPT_SHA512_CTX*, unsigned char*);
enum {
CRYPT_SHA512_DIGEST_SIZE = 64
};
/* HMAC */
typedef struct CRYPT_HMAC_CTX {
long long holder[98]; /* big enough to hold internal, but check on init */
} CRYPT_HMAC_CTX;
int CRYPT_HMAC_SetKey(CRYPT_HMAC_CTX*, int, const unsigned char*, unsigned int);
int CRYPT_HMAC_DataAdd(CRYPT_HMAC_CTX*, const unsigned char*, unsigned int);
int CRYPT_HMAC_Finalize(CRYPT_HMAC_CTX*, unsigned char*);
/* HMAC types */
enum {
CRYPT_HMAC_SHA = 4,
CRYPT_HMAC_SHA256 = 6,
CRYPT_HMAC_SHA384 = 7,
CRYPT_HMAC_SHA512 = 8
};
/* Huffman */
int CRYPT_HUFFMAN_Compress(unsigned char*, unsigned int, const unsigned char*,
unsigned int, unsigned int);
int CRYPT_HUFFMAN_DeCompress(unsigned char*, unsigned int, const unsigned char*,
unsigned int);
/* flag to use static huffman */
enum {
CRYPT_HUFFMAN_COMPRESS_STATIC = 1
};
/* RNG */
typedef struct CRYPT_RNG_CTX {
int holder[66]; /* big enough to hold internal, but check on init */
} CRYPT_RNG_CTX;
int CRYPT_RNG_Initialize(CRYPT_RNG_CTX*);
int CRYPT_RNG_Get(CRYPT_RNG_CTX*, unsigned char*);
int CRYPT_RNG_BlockGenerate(CRYPT_RNG_CTX*, unsigned char*, unsigned int);
/* TDES */
typedef struct CRYPT_TDES_CTX {
int holder[104]; /* big enough to hold internal, but check on init */
} CRYPT_TDES_CTX;
int CRYPT_TDES_KeySet(CRYPT_TDES_CTX*, const unsigned char*,
const unsigned char*, int);
int CRYPT_TDES_IvSet(CRYPT_TDES_CTX*, const unsigned char*);
int CRYPT_TDES_CBC_Encrypt(CRYPT_TDES_CTX*, unsigned char*,
const unsigned char*, unsigned int);
int CRYPT_TDES_CBC_Decrypt(CRYPT_TDES_CTX*, unsigned char*,
const unsigned char*, unsigned int);
/* key direction flags for setup */
enum {
CRYPT_TDES_ENCRYPTION = 0,
CRYPT_TDES_DECRYPTION = 1
};
/* AES */
typedef struct CRYPT_AES_CTX {
int holder[90]; /* big enough to hold internal, but check on init */
} CRYPT_AES_CTX;
/* key */
int CRYPT_AES_KeySet(CRYPT_AES_CTX*, const unsigned char*, unsigned int,
const unsigned char*, int);
int CRYPT_AES_IvSet(CRYPT_AES_CTX*, const unsigned char*);
/* cbc */
int CRYPT_AES_CBC_Encrypt(CRYPT_AES_CTX*, unsigned char*,
const unsigned char*, unsigned int);
int CRYPT_AES_CBC_Decrypt(CRYPT_AES_CTX*, unsigned char*,
const unsigned char*, unsigned int);
/* ctr (counter), use Encrypt both ways with ENCRYPT key setup */
int CRYPT_AES_CTR_Encrypt(CRYPT_AES_CTX*, unsigned char*,
const unsigned char*, unsigned int);
/* direct, one block at a time */
int CRYPT_AES_DIRECT_Encrypt(CRYPT_AES_CTX*, unsigned char*,
const unsigned char*);
int CRYPT_AES_DIRECT_Decrypt(CRYPT_AES_CTX*, unsigned char*,
const unsigned char*);
/* key direction flags for setup, ctr always uses ENCRYPT flag */
enum {
CRYPT_AES_ENCRYPTION = 0,
CRYPT_AES_DECRYPTION = 1,
CRYPT_AES_BLOCK_SIZE = 16
};
/* RSA */
typedef struct CRYPT_RSA_CTX {
void* holder;
} CRYPT_RSA_CTX;
/* init/free */
int CRYPT_RSA_Initialize(CRYPT_RSA_CTX*);
int CRYPT_RSA_Free(CRYPT_RSA_CTX*);
/* key decode */
int CRYPT_RSA_PublicKeyDecode(CRYPT_RSA_CTX*, const unsigned char*,
unsigned int);
int CRYPT_RSA_PrivateKeyDecode(CRYPT_RSA_CTX*, const unsigned char*,
unsigned int);
/* encrypt/decrypt */
int CRYPT_RSA_PublicEncrypt(CRYPT_RSA_CTX*, unsigned char*,
unsigned int, const unsigned char*, unsigned int,
CRYPT_RNG_CTX*);
int CRYPT_RSA_PrivateDecrypt(CRYPT_RSA_CTX*, unsigned char*,
unsigned int, const unsigned char*, unsigned int);
/* helpers */
int CRYPT_RSA_EncryptSizeGet(CRYPT_RSA_CTX*);
int CRYPT_RSA_SetRng(CRYPT_RSA_CTX*, CRYPT_RNG_CTX*);
/* ECC */
typedef struct CRYPT_ECC_CTX {
void* holder;
} CRYPT_ECC_CTX;
/* init/free */
int CRYPT_ECC_Initialize(CRYPT_ECC_CTX*);
int CRYPT_ECC_Free(CRYPT_ECC_CTX*);
/* key coders */
int CRYPT_ECC_PublicExport(CRYPT_ECC_CTX*, unsigned char*, unsigned int,
unsigned int*);
int CRYPT_ECC_PublicImport(CRYPT_ECC_CTX*, const unsigned char*, unsigned int);
int CRYPT_ECC_PrivateImport(CRYPT_ECC_CTX*, const unsigned char*, unsigned int,
const unsigned char*, unsigned int);
/* dhe */
int CRYPT_ECC_DHE_KeyMake(CRYPT_ECC_CTX*, CRYPT_RNG_CTX*, int);
int CRYPT_ECC_DHE_SharedSecretMake(CRYPT_ECC_CTX*, CRYPT_ECC_CTX*,
unsigned char*, unsigned int, unsigned int*);
/* dsa */
int CRYPT_ECC_DSA_HashSign(CRYPT_ECC_CTX*, CRYPT_RNG_CTX*, unsigned char*,
unsigned int, unsigned int*, const unsigned char*, unsigned int);
int CRYPT_ECC_DSA_HashVerify(CRYPT_ECC_CTX*, const unsigned char*,
unsigned int, unsigned char*, unsigned int, int*);
/* helpers */
int CRYPT_ECC_KeySizeGet(CRYPT_ECC_CTX*);
int CRYPT_ECC_SignatureSizeGet(CRYPT_ECC_CTX*);
/* Error string helper, string needs to be >= 80 chars */
int CRYPT_ERROR_StringGet(int, char*);
#ifdef __cplusplus
} /* extern "C" */
#endif
#endif /* MC_CRYPTO_API_H */