///////////////////////////////////////////////////////////////////////////////
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// ÎÄ ¼þ Ãû£ºTH_AES.cpp
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// Ãè Êö£ºAES¼ÓÃÜËã·¨
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///////////////////////////////////////////////////////////////////////////////
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#include <string.h>
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#include "TH_AES.h"
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// ¼Ó½âÃÜģʽ
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#define AES_MODE_ECB 0 // µç×ÓÃÜÂ뱾ģʽ£¨Ò»°ãģʽ£©
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#define AES_MODE_CBC 1 // ÃÜÂë·Ö×éÁ´½Óģʽ
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#define AES_MODE AES_MODE_CBC
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#define Nk (AES_KEY_LEN / 4) // ÒÔ4×Ö½ÚΪµ¥Î»µÄÃÜÔ¿³¤¶È
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#define Nb 4 // ÒÔ4×Ö½ÚΪµ¥Î»µÄ¼Ó½âÃÜÊý¾Ý¿é´óС£¬¹Ì¶¨Îª4
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// Nr£º¼ÓÃܵÄÂÖÊý
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#if AES_KEY_LEN == 16
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#define Nr 10
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#elif AES_KEY_LENGTH == 24
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#define Nr 12
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#elif AES_KEY_LENGTH == 32
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#define Nr 14
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#else
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#error AES_KEY_LEN must be 16, 24 or 32 bytes !
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#endif
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// ¼ÓÃÜÓõÄSBox
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static const unsigned char SBox[256] =
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{
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0x63, 0x7c, 0x77, 0x7b, 0xf2, 0x6b, 0x6f, 0xc5, 0x30, 0x01, 0x67, 0x2b, 0xfe, 0xd7, 0xab, 0x76,
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0xca, 0x82, 0xc9, 0x7d, 0xfa, 0x59, 0x47, 0xf0, 0xad, 0xd4, 0xa2, 0xaf, 0x9c, 0xa4, 0x72, 0xc0,
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0xb7, 0xfd, 0x93, 0x26, 0x36, 0x3f, 0xf7, 0xcc, 0x34, 0xa5, 0xe5, 0xf1, 0x71, 0xd8, 0x31, 0x15,
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0x04, 0xc7, 0x23, 0xc3, 0x18, 0x96, 0x05, 0x9a, 0x07, 0x12, 0x80, 0xe2, 0xeb, 0x27, 0xb2, 0x75,
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0x09, 0x83, 0x2c, 0x1a, 0x1b, 0x6e, 0x5a, 0xa0, 0x52, 0x3b, 0xd6, 0xb3, 0x29, 0xe3, 0x2f, 0x84,
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0x53, 0xd1, 0x00, 0xed, 0x20, 0xfc, 0xb1, 0x5b, 0x6a, 0xcb, 0xbe, 0x39, 0x4a, 0x4c, 0x58, 0xcf,
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0xd0, 0xef, 0xaa, 0xfb, 0x43, 0x4d, 0x33, 0x85, 0x45, 0xf9, 0x02, 0x7f, 0x50, 0x3c, 0x9f, 0xa8,
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0x51, 0xa3, 0x40, 0x8f, 0x92, 0x9d, 0x38, 0xf5, 0xbc, 0xb6, 0xda, 0x21, 0x10, 0xff, 0xf3, 0xd2,
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0xcd, 0x0c, 0x13, 0xec, 0x5f, 0x97, 0x44, 0x17, 0xc4, 0xa7, 0x7e, 0x3d, 0x64, 0x5d, 0x19, 0x73,
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0x60, 0x81, 0x4f, 0xdc, 0x22, 0x2a, 0x90, 0x88, 0x46, 0xee, 0xb8, 0x14, 0xde, 0x5e, 0x0b, 0xdb,
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0xe0, 0x32, 0x3a, 0x0a, 0x49, 0x06, 0x24, 0x5c, 0xc2, 0xd3, 0xac, 0x62, 0x91, 0x95, 0xe4, 0x79,
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0xe7, 0xc8, 0x37, 0x6d, 0x8d, 0xd5, 0x4e, 0xa9, 0x6c, 0x56, 0xf4, 0xea, 0x65, 0x7a, 0xae, 0x08,
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0xba, 0x78, 0x25, 0x2e, 0x1c, 0xa6, 0xb4, 0xc6, 0xe8, 0xdd, 0x74, 0x1f, 0x4b, 0xbd, 0x8b, 0x8a,
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0x70, 0x3e, 0xb5, 0x66, 0x48, 0x03, 0xf6, 0x0e, 0x61, 0x35, 0x57, 0xb9, 0x86, 0xc1, 0x1d, 0x9e,
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0xe1, 0xf8, 0x98, 0x11, 0x69, 0xd9, 0x8e, 0x94, 0x9b, 0x1e, 0x87, 0xe9, 0xce, 0x55, 0x28, 0xdf,
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0x8c, 0xa1, 0x89, 0x0d, 0xbf, 0xe6, 0x42, 0x68, 0x41, 0x99, 0x2d, 0x0f, 0xb0, 0x54, 0xbb, 0x16
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};
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// ½âÃÜÓõÄSBox
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static const unsigned char InvSBox[256] =
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{
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0x52, 0x09, 0x6a, 0xd5, 0x30, 0x36, 0xa5, 0x38, 0xbf, 0x40, 0xa3, 0x9e, 0x81, 0xf3, 0xd7, 0xfb,
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0x7c, 0xe3, 0x39, 0x82, 0x9b, 0x2f, 0xff, 0x87, 0x34, 0x8e, 0x43, 0x44, 0xc4, 0xde, 0xe9, 0xcb,
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0x54, 0x7b, 0x94, 0x32, 0xa6, 0xc2, 0x23, 0x3d, 0xee, 0x4c, 0x95, 0x0b, 0x42, 0xfa, 0xc3, 0x4e,
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0x08, 0x2e, 0xa1, 0x66, 0x28, 0xd9, 0x24, 0xb2, 0x76, 0x5b, 0xa2, 0x49, 0x6d, 0x8b, 0xd1, 0x25,
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0x72, 0xf8, 0xf6, 0x64, 0x86, 0x68, 0x98, 0x16, 0xd4, 0xa4, 0x5c, 0xcc, 0x5d, 0x65, 0xb6, 0x92,
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0x6c, 0x70, 0x48, 0x50, 0xfd, 0xed, 0xb9, 0xda, 0x5e, 0x15, 0x46, 0x57, 0xa7, 0x8d, 0x9d, 0x84,
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0x90, 0xd8, 0xab, 0x00, 0x8c, 0xbc, 0xd3, 0x0a, 0xf7, 0xe4, 0x58, 0x05, 0xb8, 0xb3, 0x45, 0x06,
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0xd0, 0x2c, 0x1e, 0x8f, 0xca, 0x3f, 0x0f, 0x02, 0xc1, 0xaf, 0xbd, 0x03, 0x01, 0x13, 0x8a, 0x6b,
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0x3a, 0x91, 0x11, 0x41, 0x4f, 0x67, 0xdc, 0xea, 0x97, 0xf2, 0xcf, 0xce, 0xf0, 0xb4, 0xe6, 0x73,
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0x96, 0xac, 0x74, 0x22, 0xe7, 0xad, 0x35, 0x85, 0xe2, 0xf9, 0x37, 0xe8, 0x1c, 0x75, 0xdf, 0x6e,
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0x47, 0xf1, 0x1a, 0x71, 0x1d, 0x29, 0xc5, 0x89, 0x6f, 0xb7, 0x62, 0x0e, 0xaa, 0x18, 0xbe, 0x1b,
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0xfc, 0x56, 0x3e, 0x4b, 0xc6, 0xd2, 0x79, 0x20, 0x9a, 0xdb, 0xc0, 0xfe, 0x78, 0xcd, 0x5a, 0xf4,
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0x1f, 0xdd, 0xa8, 0x33, 0x88, 0x07, 0xc7, 0x31, 0xb1, 0x12, 0x10, 0x59, 0x27, 0x80, 0xec, 0x5f,
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0x60, 0x51, 0x7f, 0xa9, 0x19, 0xb5, 0x4a, 0x0d, 0x2d, 0xe5, 0x7a, 0x9f, 0x93, 0xc9, 0x9c, 0xef,
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0xa0, 0xe0, 0x3b, 0x4d, 0xae, 0x2a, 0xf5, 0xb0, 0xc8, 0xeb, 0xbb, 0x3c, 0x83, 0x53, 0x99, 0x61,
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0x17, 0x2b, 0x04, 0x7e, 0xba, 0x77, 0xd6, 0x26, 0xe1, 0x69, 0x14, 0x63, 0x55, 0x21, 0x0c, 0x7d
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};
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// CBCģʽ³õʼ»¯ÏòÁ¿
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static const unsigned char IV[32] = { 0x00 };
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///////////////////////////////////////////////////////////////////////////////
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// º¯ÊýÃû£º RotationWord
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// ÃèÊö£º ¶ÔÒ»¸ö¡°×Ö¡±Êý¾Ý½øÐÐÑ»·ÓÒÒÆ¡£
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// ÊäÈë²ÎÊý£º pWord -- ÒªÓÒÒƵÄ4×Ö½ÚÊý¾Ý¡£
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// Êä³ö²ÎÊý£º pWord -- ÓÒÒƺóµÄ4×Ö½ÚÊý¾Ý¡£
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// ·µ»ØÖµ£º ÎÞ¡£
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///////////////////////////////////////////////////////////////////////////////
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static void RotationWord(unsigned char *pWord)
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{
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unsigned char temp = pWord[0];
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pWord[0] = pWord[1];
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pWord[1] = pWord[2];
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pWord[2] = pWord[3];
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pWord[3] = temp;
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}
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///////////////////////////////////////////////////////////////////////////////
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// º¯ÊýÃû£º XorBytes
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// ÃèÊö£º ÅúÁ¿Òì»òÁ½×éÊý¾Ý¡£
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// ÊäÈë²ÎÊý£º pData1 -- ÒªÒì»òµÄµÚÒ»×éÊý¾Ý¡£
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// pData1 -- ÒªÒì»òµÄµÚ¶þ×éÊý¾Ý¡£
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// nCount -- ÒªÒì»òµÄÊý¾Ý³¤¶È¡£
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// Êä³ö²ÎÊý£º pData1 -- Òì»òºóµÄ½á¹û¡£
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// ·µ»ØÖµ£º ÎÞ¡£
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///////////////////////////////////////////////////////////////////////////////
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static void XorBytes(unsigned char *pData1, const unsigned char *pData2, unsigned char nCount)
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{
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unsigned char i;
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for(i = 0; i < nCount; i++) pData1[i] ^= pData2[i];
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}
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///////////////////////////////////////////////////////////////////////////////
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// º¯ÊýÃû£º AddRoundKey
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// ÃèÊö£º °Ñ Öмä״̬Êý¾Ý ¼ÓÉÏ£¨Òì»ò£©×ÓÃÜÔ¿£¬Êý¾Ý³¤¶ÈΪ16×Ö½Ú¡£
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// ÊäÈë²ÎÊý£º pState -- ״̬Êý¾Ý¡£
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// pRoundKey -- ×ÓÃÜÔ¿Êý¾Ý¡£
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// Êä³ö²ÎÊý£º pState -- ¼ÓÉÏ×ÓÃÜÔ¿ºóµÄ״̬Êý¾Ý¡£
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// ·µ»ØÖµ£º ÎÞ¡£
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///////////////////////////////////////////////////////////////////////////////
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// static void AddRoundKey(unsigned char *pState, const unsigned char *pRoundKey)
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// {
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// XorBytes(pState, pRoundKey, 4*Nb);
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// }
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// AddRoundKeyµÄºêÐÎʽ£¬±Èº¯ÊýÐÎʽ¿ÉÒÔ½ÚÊ¡4×Ö½ÚµÄdataÊý¾Ý
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#define AddRoundKey(pState, pRoundKey) \
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XorBytes((pState), (pRoundKey), 4 * Nb)
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///////////////////////////////////////////////////////////////////////////////
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// º¯ÊýÃû£º SubBytes
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// ÃèÊö£º ͨ¹ýSºÐ×ÓÖû»×´Ì¬Êý¾Ý¡£
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// ÊäÈë²ÎÊý£º pState -- ״̬Êý¾Ý¡£
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// nCount -- ״̬Êý¾Ý³¤¶È¡£
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// bInvert -- ÊÇ·ñʹÓ÷´ÏòSºÐ×Ó£¨½âÃÜʱʹÓã©¡£
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// Êä³ö²ÎÊý£º pState -- Öû»ºóµÄ״̬Êý¾Ý¡£
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// ·µ»ØÖµ£º ÎÞ¡£
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///////////////////////////////////////////////////////////////////////////////
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static void SubBytes(unsigned char *pState, unsigned char nCount, unsigned char bInvert)
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{
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const unsigned char *pSBox = bInvert ? InvSBox : SBox;
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unsigned char i;
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for (i = 0; i < nCount; i++) pState[i] = pSBox[pState[i]];
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}
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///////////////////////////////////////////////////////////////////////////////
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// º¯ÊýÃû£º ShiftRows
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// ÃèÊö£º °Ñ״̬Êý¾ÝÒÆÐС£
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// ÊäÈë²ÎÊý£º pState -- ״̬Êý¾Ý¡£
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// bInvert -- ÊÇ·ñ·´ÏòÒÆÐУ¨½âÃÜʱʹÓã©¡£
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// Êä³ö²ÎÊý£º pState -- ÒÆÐкóµÄ״̬Êý¾Ý¡£
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// ·µ»ØÖµ£º ÎÞ¡£
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///////////////////////////////////////////////////////////////////////////////
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static void ShiftRows(unsigned char *pState, unsigned char bInvert)
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{
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// ×¢Ò⣺״̬Êý¾ÝÒÔÁÐÐÎʽ´æ·Å£¡
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unsigned char r, c; // ÐУ¬ÁÐ
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unsigned char temp, rowData[4];
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for (r = 1; r < 4; r++) {
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// ±¸·ÝÒ»ÐÐÊý¾Ý
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for (c = 0; c < 4; c++) rowData[c] = pState[r + 4 * c];
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temp = bInvert ? (4 - r) : r;
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for (c = 0; c < 4; c++) pState[r + 4 * c] = rowData[(c + temp) % 4];
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}
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}
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///////////////////////////////////////////////////////////////////////////////
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// º¯ÊýÃû£º GfMultBy02
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// ÃèÊö£º ÔÚGF(28)ÓòµÄ ³Ë2 ÔËËã¡£
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// ÊäÈë²ÎÊý£º num -- ³ËÊý¡£
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// Êä³ö²ÎÊý£º ÎÞ¡£
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// ·µ»ØÖµ£º num³ËÒÔ2µÄ½á¹û¡£
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///////////////////////////////////////////////////////////////////////////////
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static unsigned char GfMultBy02(unsigned char num)
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{
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#define BPOLY 0x1B // GF(28) ¶àÏîʽ: Lower 8 BOOLs of (x^8 + x^4 + x^3 + x + 1), ie. (x^4 + x^3 + x + 1).
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if ((num & 0x80) == 0) num = num << 1;
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else num = (num << 1) ^ BPOLY;
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return num;
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}
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///////////////////////////////////////////////////////////////////////////////
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// º¯ÊýÃû£º MixColumns
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// ÃèÊö£º »ìºÏ״̬¸÷ÁÐÊý¾Ý¡£
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// ÊäÈë²ÎÊý£º pState -- ״̬Êý¾Ý¡£
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// bInvert -- ÊÇ·ñ·´Ïò»ìºÏ£¨½âÃÜʱʹÓã©¡£
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// Êä³ö²ÎÊý£º pState -- »ìºÏÁкóµÄ״̬Êý¾Ý¡£
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// ·µ»ØÖµ£º ÎÞ¡£
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///////////////////////////////////////////////////////////////////////////////
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static void MixColumns(unsigned char *pState, unsigned char bInvert)
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{
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unsigned char i, temp;
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unsigned char a0Pa2_M4; // 4(a0 + a2)
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unsigned char a1Pa3_M4; // 4(a1 + a3)
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unsigned char result[4];
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for (i = 0; i < 4; i++, pState += 4) {
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// b0 = 2a0 + 3a1 + a2 + a3
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// = (a0 + a1 + a2 + a3) + 2(a0 + a1) + a0
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temp = pState[0] ^ pState[1] ^ pState[2] ^ pState[3];
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result[0] = temp ^ pState[0] ^ GfMultBy02((unsigned char) (pState[0] ^ pState[1]));
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result[1] = temp ^ pState[1] ^ GfMultBy02((unsigned char) (pState[1] ^ pState[2]));
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result[2] = temp ^ pState[2] ^ GfMultBy02((unsigned char) (pState[2] ^ pState[3]));
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result[3] = temp ^ pState[3] ^ GfMultBy02((unsigned char) (pState[3] ^ pState[0]));
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if (bInvert) {
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// b0' = 14a0 + 11a1 + 13a2 + 9a3
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// = (a0 + a1 + a2 + a3) + 2(a0 + a1) + a0 £¨Õⲿ·ÖΪb0£©
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// + 2(4(a0 + a2) + 4(a1 + a3))
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// + 4(a0 + a2)
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a0Pa2_M4 = GfMultBy02(GfMultBy02((unsigned char) (pState[0] ^ pState[2])));
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a1Pa3_M4 = GfMultBy02(GfMultBy02((unsigned char) (pState[1] ^ pState[3])));
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temp = GfMultBy02((unsigned char) (a0Pa2_M4 ^ a1Pa3_M4));
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result[0] ^= temp ^ a0Pa2_M4;
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result[1] ^= temp ^ a1Pa3_M4;
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result[2] ^= temp ^ a0Pa2_M4;
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result[3] ^= temp ^ a1Pa3_M4;
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}
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memcpy(pState, result, 4);
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}
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}
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///////////////////////////////////////////////////////////////////////////////
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// º¯ÊýÃû£º BlockEncrypt
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// ÃèÊö£º ¶Ôµ¥¿éÊý¾Ý¼ÓÃÜ¡£
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// ÊäÈë²ÎÊý£º pState -- ״̬Êý¾Ý¡£
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// Êä³ö²ÎÊý£º pState -- ¼ÓÃܺóµÄ״̬Êý¾Ý¡£
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// ·µ»ØÖµ£º ÎÞ¡£
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///////////////////////////////////////////////////////////////////////////////
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static void BlockEncrypt(unsigned char *pState, unsigned char* pRoundKeyTable)
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{
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unsigned char i;
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AddRoundKey(pState, pRoundKeyTable);
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for (i = 1; i <= Nr; i++) { // i = [1, Nr]
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SubBytes(pState, 4 * Nb, 0);
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ShiftRows(pState, 0);
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if (i != Nr) MixColumns(pState, 0);
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AddRoundKey(pState, &pRoundKeyTable[4 * Nb * i]);
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}
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}
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///////////////////////////////////////////////////////////////////////////////
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// º¯ÊýÃû£º BlockDecrypt
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// ÃèÊö£º ¶Ôµ¥¿éÊý¾Ý½âÃÜ¡£
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// ÊäÈë²ÎÊý£º pState -- ״̬Êý¾Ý¡£
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// Êä³ö²ÎÊý£º pState -- ½âÃܺóµÄ״̬Êý¾Ý¡£
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// ·µ»ØÖµ£º ÎÞ¡£
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///////////////////////////////////////////////////////////////////////////////
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static void BlockDecrypt(unsigned char *pState, unsigned char* pRoundKeyTable)
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{
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unsigned char i;
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AddRoundKey(pState, &pRoundKeyTable[4*Nb*Nr]);
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for (i = Nr; i > 0; i--) { // i = [Nr, 1]
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ShiftRows(pState, 1);
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SubBytes(pState, 4 * Nb, 1);
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AddRoundKey(pState, &pRoundKeyTable[4 * Nb * (i - 1)]);
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if (i != 1) MixColumns(pState, 1);
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}
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}
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// À©Õ¹ÃÜÔ¿²Ù
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// ÊäÈë²ÎÊý£ºpKey -- ÔʼÃÜÔ¿£¬Æ䳤¶È±ØÐëΪ AES_KEY_LENGTH/8 ×Ö½Ú¡£
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// Êä³ö²ÎÊý£ºpRoundkeyTable -- À©Õ¹ÃÜÔ¿±í
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///////////////////////////////////////////////////////////////////////////////
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static void RoundKey(const void *pKey, unsigned char* pRoundkeyTable)
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{
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// À©Õ¹ÃÜÔ¿
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unsigned char i;
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unsigned char *pRoundKey;
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unsigned char Rcon[4] = { 0x01, 0x00, 0x00, 0x00 };
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memcpy(pRoundkeyTable, pKey, 4 * Nk);
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pRoundKey = &pRoundkeyTable[4 * Nk];
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for (i = Nk; i < Nb * (Nr +1 ); pRoundKey += 4, i++) {
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memcpy(pRoundKey, pRoundKey - 4, 4);
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if (i % Nk == 0) {
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RotationWord(pRoundKey);
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SubBytes(pRoundKey, 4, 0);
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XorBytes(pRoundKey, Rcon, 4);
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Rcon[0] = GfMultBy02(Rcon[0]);
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} else if (Nk > 6 && i % Nk == Nb) SubBytes(pRoundKey, 4, 0);
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XorBytes(pRoundKey, pRoundKey - 4 * Nk, 4);
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}
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}
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//////////////////////////////////////////////////////////////////////////
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// º¯ÊýÃû£º AES_Encrypt
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// ÃèÊö£º ¼ÓÃÜÊý¾Ý
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// ÊäÈë²ÎÊý£º pKey -- ÃÜÔ¿£¬³¤¶È±ØÐëµÈÓÚÃÜÔ¿³¤¶È
|
// pData -- Ã÷ÎÄ£¬¼´Ðè¼ÓÃܵÄÊý¾Ý£¬Æ䳤¶ÈΪnDataLen×Ö½Ú
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// nDataLen -- Êý¾Ý³¤¶È£¬±ØÐëΪÃÜÔ¿³¤¶ÈµÄÕû±¶Êý
|
// Êä³ö²ÎÊý£º pData -- ÃÜÎÄ£¬¼´ÓÉÃ÷ÎļÓÃܺóµÄÊý¾Ý£¬µÈÓÚÃ÷Îij¤¶È
|
// ·µ»ØÖµ£º ÎÞ¡£
|
//////////////////////////////////////////////////////////////////////////
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void AES_Encrypt(const void *pKey, unsigned char *pData, int nDataLen)
|
{
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const unsigned char *pIV = IV;
|
int i;
|
|
// AES×ÓÃÜÔ¿±í£¬µ±ÃÜÔ¿³¤¶ÈΪ128λʱ£¬Õ¼ÓÃ176×Ö½Ú¿Õ¼ä
|
unsigned char roundKeyTable[4*Nb*(Nr+1)];
|
RoundKey(pKey, roundKeyTable);
|
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for(i = nDataLen / (4 * Nb); i > 0 ; i--, pData += 4 * Nb) {
|
#if AES_MODE == AES_MODE_CBC
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XorBytes(pData, pIV, 4 * Nb);
|
#endif
|
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BlockEncrypt(pData, roundKeyTable);
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pIV = pData;
|
}
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}
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//////////////////////////////////////////////////////////////////////////
|
// º¯ÊýÃû£º AES_Decrypt
|
// ÃèÊö£º ½âÃÜÊý¾Ý
|
// ÊäÈë²ÎÊý£º pKey -- ÃÜÔ¿£¬³¤¶È±ØÐëµÈÓÚÃÜÔ¿³¤¶È
|
// pData -- ÃÜÎÄ£¬¼´Ðè½âÃܵÄÊý¾Ý£¬Æ䳤¶ÈΪnDataLen×Ö½Ú
|
// nDataLen -- Êý¾Ý³¤¶È£¬ÒÔ×Ö½ÚΪµ¥Î»£¬±ØÐëΪÃÜÔ¿³¤¶ÈµÄÕû±¶Êý
|
// Êä³ö²ÎÊý£º pData -- Ã÷ÎÄ£¬¼´ÓÉÃÜÎĽâÃܺóµÄÊý¾Ý£¬µÈÓÚÃÜÎij¤¶È
|
// ·µ»ØÖµ£º ÎÞ¡£
|
//////////////////////////////////////////////////////////////////////////
|
void AES_Decrypt(const void *pKey, unsigned char *pData, int nDataLen)
|
{
|
int i;
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// AES×ÓÃÜÔ¿±í£¬µ±ÃÜÔ¿³¤¶ÈΪ128λʱ£¬Õ¼ÓÃ176×Ö½Ú¿Õ¼ä
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unsigned char roundKeyTable[4 * Nb * (Nr + 1)];
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RoundKey(pKey, roundKeyTable);
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// ´Ó×îºóÒ»¿éÊý¾Ý¿ªÊ¼½âÃÜ£¬ÕâÑù²»Óÿª±Ù¿Õ¼äÀ´±£´æIV
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pData += nDataLen - 4 * Nb;
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for(i = nDataLen / (4 * Nb); i > 0 ; i--, pData -= 4 * Nb) {
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BlockDecrypt(pData, roundKeyTable);
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#if AES_MODE == AES_MODE_CBC
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if (i == 1) {// ×îºóÒ»¿éÊý¾Ý
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XorBytes(pData, IV, 4 * Nb);
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} else XorBytes(pData, pData - 4 * Nb, 4 * Nb);
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#endif
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}
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}
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/////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
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// º¯ÊýÃû£º SDK_Encrypt
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// ÃèÊö£º SDK¼ÓÃÜ£¬ÓÉÃ÷Îĵõ½ÃÜÎÄ
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// ÊäÈë²ÎÊý£º pData -- Ëæ»úÉú³ÉµÄÃ÷ÎÄ
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// Êä³ö²ÎÊý£º pData -- ¼ÓÃܺóµÃµ½µÄÃÜÎÄ
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// ·µ»ØÖµ£º ÎÞ
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// ±¸×¢£º SDKËæ»úÉú³ÉÃ÷ÎÄ£¬½«Ã÷ÎÄ·¢Ë͸øµ÷Ó÷½£¬µ÷Ó÷½½«Ã÷Îıä³ÉÃÜÎÄ´«»ØSDK£¬
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// SDKµ÷Óñ¾½Ó¿ÚÒ²Éú³ÉÃÜÎÄ£¬±È½ÏSDKÉú³ÉµÄÃÜÎÄÓëµ÷Ó÷½´«»ØµÄÃÜÎÄÊÇ·ñÒ»Ö£¬Ò»ÖÂÔòÈÏ֤ͨ¹ý£¬·ñÔòÈÏÖ¤²»Í¨¹ý
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////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
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void TH_SDK_Encrypt(unsigned char* pData)
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{
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static unsigned char KEY_CRYPTED[16] = { 0x21, 0x38, 0x42, 0xA9, 0x92, 0x69, 0x5D, 0x8D, 0x8A, 0xD8, 0x4C, 0x4C, 0xE5, 0x3F, 0xED, 0x20 }; // ÃÜÔ¿µÄ¼ÓÃÜÐÎʽ
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static unsigned char KEY_PASSWORD[16] = { 0xE7, 0x44, 0xF2, 0x49, 0x10, 0x80, 0x53, 0x21, 0xD2, 0xA2, 0xFD, 0x36, 0x9D, 0x63, 0x93, 0x2B }; // ½âÃÜÃÜÔ¿µÄÃÜÂë
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static unsigned char KEY[16]; // ʵ¼ÊµÄÃÜÔ¿£¨²»ÒÔÃ÷ÎÄÐÎʽ´æÔÚ´úÂëÖУ©
|
|
// »¹Ôʵ¼ÊÃÜÔ¿
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static int bInit = 0;
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if(bInit == 0) {
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bInit = 1;
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memcpy(KEY, KEY_CRYPTED, 16);
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AES_Decrypt(KEY_PASSWORD, KEY, 16);
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}
|
|
// AES¼ÓÃÜ
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AES_Encrypt(KEY, pData, 16);
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}
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