/* pic32mz-crypt.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 */ #ifndef PIC32MZ_CRYPT_H #define PIC32MZ_CRYPT_H #ifdef __cplusplus extern "C" { #endif #include #ifdef WOLFSSL_MICROCHIP_PIC32MZ #ifndef MICROCHIP_PIC32 #define MICROCHIP_PIC32 #endif /* If algos aren't enabled then turn off */ #ifdef WOLFSSL_PIC32MZ_HASH #if defined(NO_MD5) && defined(NO_SHA) && defined(NO_SHA256) #undef WOLFSSL_PIC32MZ_HASH #endif #endif #ifdef WOLFSSL_PIC32MZ_CRYPT #if defined(NO_AES) && defined(NO_DES3) #undef WOLFSSL_PIC32MZ_CRYPT #endif #endif /* Enables support for large hashing */ /* requires exclusive access to crypto hardware done at application layer */ #define WOLFSSL_PIC32MZ_LARGE_HASH #include #include #include /* PIC32 Crypto Structures */ typedef struct saCtrl { unsigned int CRYPTOALGO : 4; unsigned int MULTITASK : 3; unsigned int KEYSIZE : 2; unsigned int ENCTYPE : 1; unsigned int ALGO : 7; unsigned int : 3; unsigned int FLAGS : 1; unsigned int FB : 1; unsigned int LOADIV : 1; unsigned int LNC : 1; unsigned int IRFLAG : 1; unsigned int ICVONLY : 1; unsigned int OR_EN : 1; unsigned int NO_RX : 1; unsigned int : 1; unsigned int VERIFY : 1; unsigned int : 2; } saCtrl; typedef struct securityAssociation { saCtrl SA_CTRL; unsigned int SA_AUTHKEY[8]; unsigned int SA_ENCKEY[8]; unsigned int SA_AUTHIV[8]; unsigned int SA_ENCIV[4]; } securityAssociation; typedef struct bdCtrl { unsigned int BUFLEN : 16; unsigned int CBD_INT_EN : 1; unsigned int PKT_INT_EN : 1; unsigned int LIFM : 1; unsigned int LAST_BD : 1; unsigned int CRDMA_EN : 1; unsigned int UPD_RES : 1; unsigned int SA_FETCH_EN : 1; unsigned int SEC_CODE : 8; volatile unsigned int DESC_EN : 1; } bdCtrl; typedef struct bufferDescriptor { bdCtrl BD_CTRL; unsigned int SA_ADDR; unsigned int SRCADDR; unsigned int DSTADDR; unsigned int NXTPTR; unsigned int UPDPTR; unsigned int MSGLEN; unsigned int ENCOFF; } bufferDescriptor; /* Cache Updates Struct */ typedef struct hashUpdCache { unsigned char* buf; unsigned int bufLen; unsigned int updLen; int isCopy; #ifdef WOLFSSL_PIC32MZ_LARGE_HASH unsigned int finalLen; #endif } hashUpdCache; /* Direction */ #define PIC32_ENCRYPTION 0b1 #define PIC32_DECRYPTION 0b0 /* Algorithm */ #define PIC32_ALGO_HMAC1 0b01000000 #define PIC32_ALGO_SHA256 0b00100000 #define PIC32_ALGO_SHA1 0b00010000 #define PIC32_ALGO_MD5 0b00001000 #define PIC32_ALGO_AES 0b00000100 #define PIC32_ALGO_TDES 0b00000010 #define PIC32_ALGO_DES 0b00000001 /* Crypto Algo */ /* AES */ #define PIC32_CRYPTOALGO_AES_GCM 0b1110 #define PIC32_CRYPTOALGO_RCTR 0b1101 #define PIC32_CRYPTOALGO_RCBC_MAC 0b1100 #define PIC32_CRYPTOALGO_ROFB 0b1011 #define PIC32_CRYPTOALGO_RCFB 0b1010 #define PIC32_CRYPTOALGO_RCBC 0b1001 #define PIC32_CRYPTOALGO_RECB 0b1000 /* Triple-DES */ #define PIC32_CRYPTOALGO_TOFB 0b0111 #define PIC32_CRYPTOALGO_TCFB 0b0110 #define PIC32_CRYPTOALGO_TCBC 0b0101 #define PIC32_CRYPTOALGO_TECB 0b0100 /* DES */ #define PIC32_CRYPTOALGO_OFB 0b0011 #define PIC32_CRYPTOALGO_CFB 0b0010 #define PIC32_CRYPTOALGO_CBC 0b0001 #define PIC32_CRYPTOALGO_ECB 0b0000 /* Key Size */ #define PIC32_KEYSIZE_256 0b10 #define PIC32_KEYSIZE_192 0b01 #define PIC32_KEYSIZE_128 0b00 /* PIC32 Minimum Buffer/Block Sizes */ #define PIC32_BLOCKSIZE_HASH 64 #define PIC32_BLOCKSIZE_HMAC PIC32_BLOCKSIZE_HASH #define PIC32_BLOCKSIZE_MD5 PIC32_BLOCKSIZE_HASH #define PIC32_BLOCKSIZE_SHA1 PIC32_BLOCKSIZE_HASH #define PIC32_BLOCKSIZE_SHA256 PIC32_BLOCKSIZE_HASH #define PIC32_BLOCKSIZE_AES 16 #define PIC32_BLOCKSIZE_TDES 24 #define PIC32_BLOCKSIZE_DES 8 #define PIC32_DIGEST_SIZE 32 /* Helper Macros */ #define PIC32MZ_IF_RAM(addr) (KVA_TO_PA(addr) < 0x1D000000) /* If EF part then Crypto engine supports swapping output bytes */ #define PIC32_NO_OUT_SWAP ((__PIC32_FEATURE_SET0 == 'E') && \ (__PIC32_FEATURE_SET1 == 'C')) #ifndef NO_AES int wc_Pic32AesCrypt(word32 *key, int keyLen, word32 *iv, int ivLen, byte* out, const byte* in, word32 sz, int dir, int algo, int cryptoalgo); #endif #ifndef NO_DES3 int wc_Pic32DesCrypt(word32 *key, int keyLen, word32 *iv, int ivLen, byte* out, const byte* in, word32 sz, int dir, int algo, int cryptoalgo); #endif #ifdef WOLFSSL_PIC32MZ_HASH #define WOLFSSL_NO_HASH_RAW int wc_Pic32Hash(const byte* in, int inLen, word32* out, int outLen, int algo); int wc_Pic32HashCopy(hashUpdCache* src, hashUpdCache* dst); #ifndef NO_MD5 struct wc_Md5; void wc_Md5Pic32Free(struct wc_Md5* md5); #endif #ifndef NO_SHA struct wc_Sha; void wc_ShaPic32Free(struct wc_Sha* sha); #endif #ifndef NO_SHA256 struct wc_Sha256; void wc_Sha256Pic32Free(struct wc_Sha256* sha256); #endif #endif /* WOLFSSL_PIC32MZ_HASH */ #endif /* WOLFSSL_MICROCHIP_PIC32MZ */ #ifdef __cplusplus } /* extern "C" */ #endif #endif /* PIC32MZ_CRYPT_H */