des3.h

00001 /* des3.h
00002  *
00003  * Copyright (C) 2006-2014 wolfSSL Inc.
00004  *
00005  * This file is part of CyaSSL.
00006  *
00007  * CyaSSL is free software; you can redistribute it and/or modify
00008  * it under the terms of the GNU General Public License as published by
00009  * the Free Software Foundation; either version 2 of the License, or
00010  * (at your option) any later version.
00011  *
00012  * CyaSSL is distributed in the hope that it will be useful,
00013  * but WITHOUT ANY WARRANTY; without even the implied warranty of
00014  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
00015  * GNU General Public License for more details.
00016  *
00017  * You should have received a copy of the GNU General Public License
00018  * along with this program; if not, write to the Free Software
00019  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA
00020  */
00021 
00022 
00023 #ifndef NO_DES3
00024 
00025 #ifndef CTAO_CRYPT_DES3_H
00026 #define CTAO_CRYPT_DES3_H
00027 
00028 
00029 #include <cyassl/ctaocrypt/types.h>
00030 
00031 
00032 #ifdef __cplusplus
00033     extern "C" {
00034 #endif
00035 
00036 #define CYASSL_3DES_CAVIUM_MAGIC 0xBEEF0003
00037 
00038 enum {
00039     DES_ENC_TYPE    = 2,     /* cipher unique type */
00040     DES3_ENC_TYPE   = 3,     /* cipher unique type */
00041     DES_BLOCK_SIZE  = 8,
00042     DES_KS_SIZE     = 32,
00043 
00044     DES_ENCRYPTION  = 0,
00045     DES_DECRYPTION  = 1
00046 };
00047 
00048 #define DES_IVLEN 8
00049 #define DES_KEYLEN 8
00050 #define DES3_IVLEN 8
00051 #define DES3_KEYLEN 24
00052 
00053 
00054 #ifdef STM32F2_CRYPTO
00055 enum {
00056     DES_CBC = 0,
00057     DES_ECB = 1
00058 };
00059 #endif
00060 
00061 
00062 /* DES encryption and decryption */
00063 typedef struct Des {
00064     word32 reg[DES_BLOCK_SIZE / sizeof(word32)];      /* for CBC mode */
00065     word32 tmp[DES_BLOCK_SIZE / sizeof(word32)];      /* same         */
00066     word32 key[DES_KS_SIZE];
00067 } Des;
00068 
00069 
00070 /* DES3 encryption and decryption */
00071 typedef struct Des3 {
00072     word32 key[3][DES_KS_SIZE];
00073     word32 reg[DES_BLOCK_SIZE / sizeof(word32)];      /* for CBC mode */
00074     word32 tmp[DES_BLOCK_SIZE / sizeof(word32)];      /* same         */
00075 #ifdef HAVE_CAVIUM
00076     int     devId;           /* nitrox device id */
00077     word32  magic;           /* using cavium magic */
00078     word64  contextHandle;   /* nitrox context memory handle */
00079 #endif
00080 } Des3;
00081 
00082 
00083 CYASSL_API int  Des_SetKey(Des* des, const byte* key, const byte* iv, int dir);
00084 CYASSL_API void Des_SetIV(Des* des, const byte* iv);
00085 CYASSL_API int  Des_CbcEncrypt(Des* des, byte* out, const byte* in, word32 sz);
00086 CYASSL_API int  Des_CbcDecrypt(Des* des, byte* out, const byte* in, word32 sz);
00087 CYASSL_API int  Des_EcbEncrypt(Des* des, byte* out, const byte* in, word32 sz);
00088 CYASSL_API int  Des_CbcDecryptWithKey(byte* out, const byte* in, word32 sz,
00089                                                const byte* key, const byte* iv);
00090 
00091 CYASSL_API int  Des3_SetKey(Des3* des, const byte* key, const byte* iv,int dir);
00092 CYASSL_API int  Des3_SetIV(Des3* des, const byte* iv);
00093 CYASSL_API int  Des3_CbcEncrypt(Des3* des, byte* out, const byte* in,word32 sz);
00094 CYASSL_API int  Des3_CbcDecrypt(Des3* des, byte* out, const byte* in,word32 sz);
00095 CYASSL_API int  Des3_CbcDecryptWithKey(byte* out, const byte* in, word32 sz,
00096                                                const byte* key, const byte* iv);
00097 
00098 
00099 #ifdef HAVE_CAVIUM
00100     CYASSL_API int  Des3_InitCavium(Des3*, int);
00101     CYASSL_API void Des3_FreeCavium(Des3*);
00102 #endif
00103 
00104 
00105 #ifdef HAVE_FIPS
00106     /* fips wrapper calls, user can call direct */
00107     CYASSL_API int  Des3_SetKey_fips(Des3* des, const byte* key, const byte* iv,
00108                                      int dir);
00109     CYASSL_API int  Des3_SetIV_fips(Des3* des, const byte* iv);
00110     CYASSL_API int  Des3_CbcEncrypt_fips(Des3* des, byte* out, const byte* in,
00111                                          word32 sz);
00112     CYASSL_API int  Des3_CbcDecrypt_fips(Des3* des, byte* out, const byte* in,
00113                                          word32 sz);
00114     #ifndef FIPS_NO_WRAPPERS
00115         /* if not impl or fips.c impl wrapper force fips calls if fips build */
00116         #define Des3_SetKey     Des3_SetKey_fips
00117         #define Des3_SetIV      Des3_SetIV_fips
00118         #define Des3_CbcEncrypt Des3_CbcEncrypt_fips
00119         #define Des3_CbcDecrypt Des3_CbcDecrypt_fips
00120     #endif /* FIPS_NO_WRAPPERS */
00121 
00122 #endif /* HAVE_FIPS */
00123 
00124 
00125 #ifdef __cplusplus
00126     } /* extern "C" */
00127 #endif
00128 
00129 #endif /* NO_DES3 */
00130 #endif /* CTAO_CRYPT_DES3_H */
00131