| /* -------------------------------------------------------------------------------------------------------------------@udN | |
| * °æȨËùÓÐ(C)2012, ÖÐÐËͨѶ¹É·ÝÓÐÏÞ¹«Ë¾ | |
| * | |
| * ÎÄ ¼þ Ãû: drv_hash.c | |
| * | |
| ------------------------------------------------------------------------------------------------------------*/ | |
| #include "drv_hash.h" | |
| #include <sdio.h> | |
| /**-------------------------------------------------------------------------------------------------------------------@n | |
| *Hash_set_len ¹¦ÄÜÏêÊö: | |
| ½«ÏûÏ¢³¤¶ÈÒÔbitΪµ¥Î»ÅäÖõ½³¤¶È¼Ä´æÆ÷ÖÐ | |
| -------------------------------------------------------------- | |
| ×¢Òâ: | |
| ±¾º¯Êý¿¼Âǵ½¼ÆËãhashµÄÊý¾Ý³¤¶ÈÒ»°ã¶¼ÊÇ°´byte´«È룬ÇÒ×ÜÁ¿²»»á³¬¹ý4G byte£¬ | |
| Òò´Ë¼ò»¯Á˺¯Êý¹¦ÄÜ¡£ | |
| byte_Len ×ÜÊý²»Äܳ¬¹ý4G£¬·ñÔò¸Ãº¯ÊýÐèÒªÖØÐÂÐ޸ġ£ | |
| *--------------------------------------------------------------------------------------------------------------------*/ | |
| static void hash_SetLen(u32 byte_Len) | |
| { | |
| REG32(HASH_LENGTH0) = byte_Len<<3; | |
| REG32(HASH_LENGTH1) = byte_Len>>29; | |
| REG32(HASH_LENGTH2) = 0; | |
| REG32(HASH_LENGTH3) = 0; | |
| } | |
| #ifdef HASH_CODE_SUPPORT_ALL | |
| static void hash_SetHmacKey(u32* pHmacKey, u32* HmacKey_len) | |
| { | |
| u32 udI; | |
| for(udI=0;udI<32;udI++) | |
| { | |
| //¼Ä´æÆ÷¸ßµØÖ·´æ·ÅµÍλÊý¾Ý£¬Êý¾Ý´æ·ÅÊǵ͵ØÖ··Å¸ßλÊý¾Ý | |
| if(udI<(32-HmacKey_len)) | |
| REG32(HASH_HMACKEY+udI*4) = 0; | |
| else | |
| REG32(HASH_HMACKEY+udI*4) = pHmacKey[udI-(32-HmacKey_len)]; | |
| } | |
| } | |
| #endif | |
| /* ·µ»Øhash ¼ÆËã½á¹ûºÍ½á¹ûµÄ³¤¶È£¬³¤¶Èµ¥Î»ÊÇword */ | |
| static void hash_GetResult(u32 udMode, u32* HashResult, u32* ResultLen) | |
| { | |
| u32 udI, udResultLen=0; | |
| #ifdef HASH_CODE_SUPPORT_ALL | |
| switch(udMode) | |
| { | |
| case HASH_MODE_MD5: | |
| case HASH_MODE_HMAC_MD5: | |
| udResultLen = 4; /* 4*4bytes = 128bit*/ | |
| break; | |
| case HASH_MODE_SHA1: | |
| case HASH_MODE_HMAC_SHA1: | |
| udResultLen = 5; /* 160 bit */ | |
| break; | |
| case HASH_MODE_SHA224: | |
| case HASH_MODE_HMAC_SHA224: | |
| udResultLen = 7; /* 224 bit */ | |
| break; | |
| case HASH_MODE_SHA256: | |
| case HASH_MODE_HMAC_SHA256: | |
| udResultLen = 8; /* 256 bit */ | |
| break; | |
| case HASH_MODE_SHA384: | |
| case HASH_MODE_HMAC_SHA384: | |
| udResultLen = 12; /* 384 bit */ | |
| break; | |
| case HASH_MODE_SHA512: | |
| case HASH_MODE_HMAC_SHA512: | |
| udResultLen = 16; /* 512 bit */ | |
| break; | |
| default: | |
| break; | |
| } | |
| #else | |
| udResultLen = 4; | |
| #endif | |
| *ResultLen = udResultLen; | |
| for(udI=0;udI<udResultLen;udI++) //hash¼ÆËãÖ§³Ö128bitÊý¾Ý | |
| { | |
| //¼Ä´æÆ÷µÍµØÖ·´æ·Åresult µÄ¸ßλ | |
| HashResult[udI] = REG32(HASH_RESULT+(16-udResultLen+udI)*4); | |
| } | |
| } | |
| /**-------------------------------------------------------------------------------------------------------------------@n | |
| * @brief HASHÄ£¿éÇý¶¯½Ó¿Ú | |
| * | |
| * ¹¦ÄÜÏêÊö: | |
| * - Hash_Computeº¯ÊýÊôÓÚ½Ó¿Úº¯Êý, Æ书ÄÜÊÇ: | |
| * - HASHÄ£¿éÇý¶¯½Ó¿Ú | |
| * | |
| * ²ÎÊý¸ÅÊö: | |
| input: | |
| udMode--------hashģʽ | |
| udBigEndian----´óС¶Ë¸ñʽ | |
| ploadAddr------¼ÆËãhashµÄÔ´Êý¾ÝÖ¸Õë | |
| loadLen--------Ô´Êý¾Ý³¤¶È | |
| pHmacKey------HMACģʽϵÄÃÜÔ¿ | |
| HmacKey_len---ÃÜÔ¿³¤¶È | |
| output: | |
| HashResult-----hash¼ÆËã½á¹û | |
| ResultLen------hash½á¹ûµÄ³¤¶È | |
| * ·µ »Ø Öµ: 0:³É¹¦ 1:ʧ°Ü | |
| *--------------------------------------------------------------------------------------------------------------------*/ | |
| u32 Hash_Calculate(u32 udMode, u32 udBigEndian, u32* ploadAddr, u32 loadLen, u32* pHmacKey, u32* HmacKey_len, u32* HashResult, u32* ResultLen) | |
| { | |
| u32 udMessageLen_word; | |
| u32 udI; | |
| if((loadLen == 0) || (ploadAddr == NULL) || (HashResult == NULL) ) | |
| { | |
| return 1; | |
| } | |
| //config hash mode and enable module | |
| REG32(HASH_CONTROL) = (udMode<<4)|(udBigEndian<<12)|1; | |
| hash_SetLen(loadLen); | |
| #ifdef HASH_CODE_SUPPORT_ALL | |
| //write HMAC key | |
| if(udMode&0x10) | |
| { | |
| hash_SetHmacKey(pHmacKey, HmacKey_len); | |
| } | |
| #endif | |
| REG32(HASH_START) = 1;//Hash_Start | |
| //start write message data into fifo | |
| udMessageLen_word = (loadLen+3)/4; | |
| for(udI=0;udI<udMessageLen_word;udI++) | |
| { | |
| REG32(HASH_DATA) = ploadAddr[udI]; | |
| } | |
| while(REG32(HASH_START) & 0x1); /* if cal busy, continue to wait*/ | |
| //read Result | |
| hash_GetResult(udMode, HashResult, ResultLen); | |
| REG32(HASH_CONTROL) = 0;//Hash_DisableModule; | |
| return 0; | |
| } | |
| /** @} */ | |