diff options
Diffstat (limited to 'wolfssl/wolfcrypt/port/pic32/pic32mz-crypt.h')
| -rw-r--r-- | wolfssl/wolfcrypt/port/pic32/pic32mz-crypt.h | 224 |
1 files changed, 224 insertions, 0 deletions
diff --git a/wolfssl/wolfcrypt/port/pic32/pic32mz-crypt.h b/wolfssl/wolfcrypt/port/pic32/pic32mz-crypt.h new file mode 100644 index 0000000..bb288c7 --- /dev/null +++ b/wolfssl/wolfcrypt/port/pic32/pic32mz-crypt.h @@ -0,0 +1,224 @@ +/* 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 <wolfssl/wolfcrypt/settings.h> + +#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 <xc.h> +#include <sys/endian.h> +#include <sys/kmem.h> + + +/* 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 */ |