/* crypto.h * * Copyright (C) 2006-2017 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 */