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AMPS:AES模块源码解读
2013-01-24 08:22:36           
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AES(Advanced Encryption Standard,高级加密标准)是一个对称密钥加密算法,密钥长度则可以是128,192或256比特。

 

 算法思路(详细信息请见维基百科):

 

 

  AES加密过程是在一个4×4的字节矩阵上运作,这个矩阵又称为“体(state)”,其初值就是一个明文区块(矩阵中一个元素大小就是明文区块中的一个Byte)。(Rijndael加密法因支持更大的区块,其矩阵行数可视情况增加)加密时,各轮AES加密循环(除最后一轮外)均包含4个步骤:

 

AddRoundKey — 矩阵中的每一个字节都与该次回合金钥(round key)做XOR运算;每个子密钥由密钥生成方案产生。

SubBytes — 通过一个非线性的替换函数,用查找表的方式把每个字节替换成对应的字节。

ShiftRows — 将矩阵中的每个横列进行循环式移位。

MixColumns — 为了充分混合矩阵中各个直行的操作。这个步骤使用线性转换来混合每内联的四个字节。

 最后一个加密循环中省略MixColumns步骤,而以另一个AddRoundKey取代。

 

 这个算法比较复杂,所以完全没理解,所以这个文章就不能说是解读了,贴出AMPS中AES的实现代码,有兴趣的朋友可以自己理解一下,我是没有这个兴趣了。

 

 AMPS_AES.h

 

 

[cpp]  

#ifndef __HEADER_AMPS_AES_H   

#define __HEADER_AMPS_AES_H   

  

#ifdef __cplusplus   

extern "C" {  

#endif   

  

#include "AMPS_Defines.h"   

  

//platform-independant 32-bit integer manipulation macros   

#define GET_UINT32(n,b,i)                       \   

    {                                               \  

    (n) = ( (b)[(i)] << 24 )                \  

    | ( (b)[(i) + 1] << 16 )                \  

    | ( (b)[(i) + 2] <<  8 )                \  

    | ( (b)[(i) + 3]       );               \  

}  

  

#define PUT_UINT32(n,b,i)                       \   

    {                                               \  

    (b)[(i)    ] = (unsigned char) ( (n) >> 24 );       \  

    (b)[(i) + 1] = (unsigned char) ( (n) >> 16 );       \  

    (b)[(i) + 2] = (unsigned char) ( (n) >>  8 );       \  

    (b)[(i) + 3] = (unsigned char) ( (n)       );       \  

}  

  

typedef struct _AMPSAESContext      t_AMPSAESContext;  

  

struct _AMPSAESContext  

{  

    int             nNoOfRounds;  

    unsigned long   ulEncRoundKeys[64];  

    unsigned long   ulDecRoundKeys[64];  

};  

  

void* AAES_Init(void* r_pvAMPSContext);  

void AAES_Cleanup(void* r_pvAMPSContext, void* r_pvAMPSAESContext);  

int  AAES_SetKey(void* r_pvAMPSContext, void* r_pvAMPSAESContext, unsigned char* r_puchKey, int r_nBits);  

void AAES_Encrypt(void* r_pvAMPSContext, void* r_pvAMPSAESContext, unsigned char* r_puchInputBuff, unsigned int r_unInputBuffLength, unsigned char* r_puchOutputBuff);  

void AAES_Decrypt(void* r_pvAMPSContext, void* r_pvAMPSAESContext, unsigned char* r_puchInputBuff, unsigned int r_unInputBuffLength, unsigned char* r_puchOutputBuff);  

  

#ifdef __cplusplus   

}  

#endif   

  

#endif //__HEADER_AMPS_AES_H  

 

#ifndef __HEADER_AMPS_AES_H

#define __HEADER_AMPS_AES_H

 

#ifdef __cplusplus

extern "C" {

#endif

 

#include "AMPS_Defines.h"

 

//platform-independant 32-bit integer manipulation macros

#define GET_UINT32(n,b,i)                       \

{                                               \

(n) = ( (b)[(i)] << 24 )                \

| ( (b)[(i) + 1] << 16 )                \

| ( (b)[(i) + 2] <<  8 )                \

| ( (b)[(i) + 3]       );               \

}

 

#define PUT_UINT32(n,b,i)                       \

{                                               \

(b)[(i)    ] = (unsigned char) ( (n) >> 24 );       \

(b)[(i) + 1] = (unsigned char) ( (n) >> 16 );       \

(b)[(i) + 2] = (unsigned char) ( (n) >>  8 );       \

(b)[(i) + 3] = (unsigned char) ( (n)       );       \

}

 

typedef struct _AMPSAESContext t_AMPSAESContext;

 

struct _AMPSAESContext

{

int nNoOfRounds;

unsigned long ulEncRoundKeys[64];

unsigned long ulDecRoundKeys[64];

};

 

void* AAES_Init(void* r_pvAMPSContext);

void AAES_Cleanup(void* r_pvAMPSContext, void* r_pvAMPSAESContext);

int  AAES_SetKey(void* r_pvAMPSContext, void* r_pvAMPSAESContext, unsigned char* r_puchKey, int r_nBits);

void AAES_Encrypt(void* r_pvAMPSContext, void* r_pvAMPSAESContext, unsigned char* r_puchInputBuff, unsigned int r_unInputBuffLength, unsigned char* r_puchOutputBuff);

void AAES_Decrypt(void* r_pvAMPSContext, void* r_pvAMPSAESContext, unsigned char* r_puchInputBuff, unsigned int r_unInputBuffLength, unsigned char* r_puchOutputBuff);

 

#ifdef __cplusplus

}

#endif

 

#endif //__HEADER_AMPS_AES_H

 

AMPS_AES.c

 

 

 

[cpp]  

#include "AMPS_Core.h"   

#include "AMPS_Defines.h"   

#include "AMPS_MemMgt.h"   

#include "AMPS_AES.h"   

#include "AMPS_LinkList.h"   

  

void* AAES_Init(void* r_pvAMPSContext)  

{  

    t_AMPSAESContext* poAMPSAESContext = NULL;  

  

    TRACE(MD5_TRACE_ID(r_pvAMPSContext), AMPS_TRACE_LEVEL_INFO, "Entering.\n");  

  

    poAMPSAESContext = (t_AMPSAESContext*)AMPS_InternalMalloc(sizeof(t_AMPSAESContext));  

    if(NULL == poAMPSAESContext)  

    {  

        TRACE( MD5_TRACE_ID(r_pvAMPSContext), AMPS_TRACE_LEVEL_ERROR, "AMPS_InternalMalloc failed for poAMPSAESContext.\n");  

        return NULL;  

    }  

  

    TRACE( MD5_TRACE_ID(r_pvAMPSContext), AMPS_TRACE_LEVEL_INFO, "Leaving.\n");  

    return poAMPSAESContext;  

}  

  

void AAES_Cleanup(void* r_pvAMPSContext, void* r_pvAMPSAESContext)  

{  

    TRACE( MD5_TRACE_ID(r_pvAMPSContext), AMPS_TRACE_LEVEL_INFO, "Entering.\n");  

  

    TRACE( MD5_TRACE_ID(r_pvAMPSContext), AMPS_TRACE_LEVEL_DEBUG, "AMPS_InternalFree called for r_pvAMPSAESContext.\n");  

    AMPS_InternalFree(r_pvAMPSAESContext);  

  

    TRACE( MD5_TRACE_ID(r_pvAMPSContext), AMPS_TRACE_LEVEL_INFO, "Leaving.\n");  

}  

  

/*加密时使用的置换表*/  

//forward S-box   

static unsigned long FSb[256] =  

{  

    0x63, 0x7C, 0x77, 0x7B, 0xF2, 0x6B, 0x6F, 0xC5,  

    0x30, 0x01, 0x67, 0x2B, 0xFE, 0xD7, 0xAB, 0x76,  

    0xCA, 0x82, 0xC9, 0x7D, 0xFA, 0x59, 0x47, 0xF0,  

    0xAD, 0xD4, 0xA2, 0xAF, 0x9C, 0xA4, 0x72, 0xC0,  

    0xB7, 0xFD, 0x93, 0x26, 0x36, 0x3F, 0xF7, 0xCC,  

    0x34, 0xA5, 0xE5, 0xF1, 0x71, 0xD8, 0x31, 0x15,  

    0x04, 0xC7, 0x23, 0xC3, 0x18, 0x96, 0x05, 0x9A,  

    0x07, 0x12, 0x80, 0xE2, 0xEB, 0x27, 0xB2, 0x75,  

    0x09, 0x83, 0x2C, 0x1A, 0x1B, 0x6E, 0x5A, 0xA0,  

    0x52, 0x3B, 0xD6, 0xB3, 0x29, 0xE3, 0x2F, 0x84,  

    0x53, 0xD1, 0x00, 0xED, 0x20, 0xFC, 0xB1, 0x5B,  

    0x6A, 0xCB, 0xBE, 0x39, 0x4A, 0x4C, 0x58, 0xCF,  

    0xD0, 0xEF, 0xAA, 0xFB, 0x43, 0x4D, 0x33, 0x85,  

    0x45, 0xF9, 0x02, 0x7F, 0x50, 0x3C, 0x9F, 0xA8,  

    0x51, 0xA3, 0x40, 0x8F, 0x92, 0x9D, 0x38, 0xF5,  

    0xBC, 0xB6, 0xDA, 0x21, 0x10, 0xFF, 0xF3, 0xD2,  

    0xCD, 0x0C, 0x13, 0xEC, 0x5F, 0x97, 0x44, 0x17,  

    0xC4, 0xA7, 0x7E, 0x3D, 0x64, 0x5D, 0x19, 0x73,  

    0x60, 0x81, 0x4F, 0xDC, 0x22, 0x2A, 0x90, 0x88,  

    0x46, 0xEE, 0xB8, 0x14, 0xDE, 0x5E, 0x0B, 0xDB,  

    0xE0, 0x32, 0x3A, 0x0A, 0x49, 0x06, 0x24, 0x5C,  

    0xC2, 0xD3, 0xAC, 0x62, 0x91, 0x95, 0xE4, 0x79,  

    0xE7, 0xC8, 0x37, 0x6D, 0x8D, 0xD5, 0x4E, 0xA9,  

    0x6C, 0x56, 0xF4, 0xEA, 0x65, 0x7A, 0xAE, 0x08,  

    0xBA, 0x78, 0x25, 0x2E, 0x1C, 0xA6, 0xB4, 0xC6,  

    0xE8, 0xDD, 0x74, 0x1F, 0x4B, 0xBD, 0x8B, 0x8A,  

    0x70, 0x3E, 0xB5, 0x66, 0x48, 0x03, 0xF6, 0x0E,  

    0x61, 0x35, 0x57, 0xB9, 0x86, 0xC1, 0x1D, 0x9E,  

    0xE1, 0xF8, 0x98, 0x11, 0x69, 0xD9, 0x8E, 0x94,  

    0x9B, 0x1E, 0x87, 0xE9, 0xCE, 0x55, 0x28, 0xDF,  

    0x8C, 0xA1, 0x89, 0x0D, 0xBF, 0xE6, 0x42, 0x68,  

    0x41, 0x99, 0x2D, 0x0F, 0xB0, 0x54, 0xBB, 0x16  

};  

  

//forward table   

#define FT \   

    \  

    V(C6,63,63,A5), V(F8,7C,7C,84), V(EE,77,77,99), V(F6,7B,7B,8D), \  

    V(FF,F2,F2,0D), V(D6,6B,6B,BD), V(DE,6F,6F,B1), V(91,C5,C5,54), \  

    V(60,30,30,50), V(02,01,01,03), V(CE,67,67,A9), V(56,2B,2B,7D), \  

    V(E7,FE,FE,19), V(B5,D7,D7,62), V(4D,AB,AB,E6), V(EC,76,76,9A), \  

    V(8F,CA,CA,45), V(1F,82,82,9D), V(89,C9,C9,40), V(FA,7D,7D,87), \  

    V(EF,FA,FA,15), V(B2,59,59,EB), V(8E,47,47,C9), V(FB,F0,F0,0B), \  

    V(41,AD,AD,EC), V(B3,D4,D4,67), V(5F,A2,A2,FD), V(45,AF,AF,EA), \  

    V(23,9C,9C,BF), V(53,A4,A4,F7), V(E4,72,72,96), V(9B,C0,C0,5B), \  

    V(75,B7,B7,C2), V(E1,FD,FD,1C), V(3D,93,93,AE), V(4C,26,26,6A), \  

    V(6C,36,36,5A), V(7E,3F,3F,41), V(F5,F7,F7,02), V(83,CC,CC,4F), \  

    V(68,34,34,5C), V(51,A5,A5,F4), V(D1,E5,E5,34), V(F9,F1,F1,08), \  

    V(E2,71,71,93), V(AB,D8,D8,73), V(62,31,31,53), V(2A,15,15,3F), \  

    V(08,04,04,0C), V(95,C7,C7,52), V(46,23,23,65), V(9D,C3,C3,5E), \  

    V(30,18,18,28), V(37,96,96,A1), V(0A,05,05,0F), V(2F,9A,9A,B5), \  

    V(0E,07,07,09), V(24,12,12,36), V(1B,80,80,9B), V(DF,E2,E2,3D), \  

    V(CD,EB,EB,26), V(4E,27,27,69), V(7F,B2,B2,CD), V(EA,75,75,9F), \  

    V(12,09,09,1B), V(1D,83,83,9E), V(58,2C,2C,74), V(34,1A,1A,2E), \  

    V(36,1B,1B,2D), V(DC,6E,6E,B2), V(B4,5A,5A,EE), V(5B,A0,A0,FB), \  

    V(A4,52,52,F6), V(76,3B,3B,4D), V(B7,D6,D6,61), V(7D,B3,B3,CE), \  

    V(52,29,29,7B), V(DD,E3,E3,3E), V(5E,2F,2F,71), V(13,84,84,97), \  

    V(A6,53,53,F5), V(B9,D1,D1,68), V(00,00,00,00), V(C1,ED,ED,2C), \  

    V(40,20,20,60), V(E3,FC,FC,1F), V(79,B1,B1,C8), V(B6,5B,5B,ED), \  

    V(D4,6A,6A,BE), V(8D,CB,CB,46), V(67,BE,BE,D9), V(72,39,39,4B), \  

    V(94,4A,4A,DE), V(98,4C,4C,D4), V(B0,58,58,E8), V(85,CF,CF,4A), \  

    V(BB,D0,D0,6B), V(C5,EF,EF,2A), V(4F,AA,AA,E5), V(ED,FB,FB,16), \  

    V(86,43,43,C5), V(9A,4D,4D,D7), V(66,33,33,55), V(11,85,85,94), \  

    V(8A,45,45,CF), V(E9,F9,F9,10), V(04,02,02,06), V(FE,7F,7F,81), \  

    V(A0,50,50,F0), V(78,3C,3C,44), V(25,9F,9F,BA), V(4B,A8,A8,E3), \  

    V(A2,51,51,F3), V(5D,A3,A3,FE), V(80,40,40,C0), V(05,8F,8F,8A), \  

    V(3F,92,92,AD), V(21,9D,9D,BC), V(70,38,38,48), V(F1,F5,F5,04), \  

    V(63,BC,BC,DF), V(77,B6,B6,C1), V(AF,DA,DA,75), V(42,21,21,63), \  

    V(20,10,10,30), V(E5,FF,FF,1A), V(FD,F3,F3,0E), V(BF,D2,D2,6D), \  

    V(81,CD,CD,4C), V(18,0C,0C,14), V(26,13,13,35), V(C3,EC,EC,2F), \  

    V(BE,5F,5F,E1), V(35,97,97,A2), V(88,44,44,CC), V(2E,17,17,39), \  

    V(93,C4,C4,57), V(55,A7,A7,F2), V(FC,7E,7E,82), V(7A,3D,3D,47), \  

    V(C8,64,64,AC), V(BA,5D,5D,E7), V(32,19,19,2B), V(E6,73,73,95), \  

    V(C0,60,60,A0), V(19,81,81,98), V(9E,4F,4F,D1), V(A3,DC,DC,7F), \  

    V(44,22,22,66), V(54,2A,2A,7E), V(3B,90,90,AB), V(0B,88,88,83), \  

    V(8C,46,46,CA), V(C7,EE,EE,29), V(6B,B8,B8,D3), V(28,14,14,3C), \  

    V(A7,DE,DE,79), V(BC,5E,5E,E2), V(16,0B,0B,1D), V(AD,DB,DB,76), \  

    V(DB,E0,E0,3B), V(64,32,32,56), V(74,3A,3A,4E), V(14,0A,0A,1E), \  

    V(92,49,49,DB), V(0C,06,06,0A), V(48,24,24,6C), V(B8,5C,5C,E4), \  

    V(9F,C2,C2,5D), V(BD,D3,D3,6E), V(43,AC,AC,EF), V(C4,62,62,A6), \  

    V(39,91,91,A8), V(31,95,95,A4), V(D3,E4,E4,37), V(F2,79,79,8B), \  

    V(D5,E7,E7,32), V(8B,C8,C8,43), V(6E,37,37,59), V(DA,6D,6D,B7), \  

    V(01,8D,8D,8C), V(B1,D5,D5,64), V(9C,4E,4E,D2), V(49,A9,A9,E0), \  

    V(D8,6C,6C,B4), V(AC,56,56,FA), V(F3,F4,F4,07), V(CF,EA,EA,25), \  

    V(CA,65,65,AF), V(F4,7A,7A,8E), V(47,AE,AE,E9), V(10,08,08,18), \  

    V(6F,BA,BA,D5), V(F0,78,78,88), V(4A,25,25,6F), V(5C,2E,2E,72), \  

    V(38,1C,1C,24), V(57,A6,A6,F1), V(73,B4,B4,C7), V(97,C6,C6,51), \  

    V(CB,E8,E8,23), V(A1,DD,DD,7C), V(E8,74,74,9C), V(3E,1F,1F,21), \  

    V(96,4B,4B,DD), V(61,BD,BD,DC), V(0D,8B,8B,86), V(0F,8A,8A,85), \  

    V(E0,70,70,90), V(7C,3E,3E,42), V(71,B5,B5,C4), V(CC,66,66,AA), \  

    V(90,48,48,D8), V(06,03,03,05), V(F7,F6,F6,01), V(1C,0E,0E,12), \  

    V(C2,61,61,A3), V(6A,35,35,5F), V(AE,57,57,F9), V(69,B9,B9,D0), \  

    V(17,86,86,91), V(99,C1,C1,58), V(3A,1D,1D,27), V(27,9E,9E,B9), \  

    V(D9,E1,E1,38), V(EB,F8,F8,13), V(2B,98,98,B3), V(22,11,11,33), \  

    V(D2,69,69,BB), V(A9,D9,D9,70), V(07,8E,8E,89), V(33,94,94,A7), \  

    V(2D,9B,9B,B6), V(3C,1E,1E,22), V(15,87,87,92), V(C9,E9,E9,20), \  

    V(87,CE,CE,49), V(AA,55,55,FF), V(50,28,28,78), V(A5,DF,DF,7A), \  

    V(03,8C,8C,8F), V(59,A1,A1,F8), V(09,89,89,80), V(1A,0D,0D,17), \  

    V(65,BF,BF,DA), V(D7,E6,E6,31), V(84,42,42,C6), V(D0,68,68,B8), \  

    V(82,41,41,C3), V(29,99,99,B0), V(5A,2D,2D,77), V(1E,0F,0F,11), \  

    V(7B,B0,B0,CB), V(A8,54,54,FC), V(6D,BB,BB,D6), V(2C,16,16,3A)  

  

#define V(a,b,c,d) 0x##a##b##c##d   

static unsigned long FT0[256] = { FT };  

#undef V   

  

#define V(a,b,c,d) 0x##d##a##b##c   

static unsigned long FT1[256] = { FT };  

#undef V   

  

#define V(a,b,c,d) 0x##c##d##a##b   

static unsigned long FT2[256] = { FT };  

#undef V   

  

#define V(a,b,c,d) 0x##b##c##d##a   

static unsigned long FT3[256] = { FT };  

#undef V   

  

/*解密时使用的逆置换表*/  

//reverse S-box   

static unsigned long RSb[256] =  

{  

    0x52, 0x09, 0x6A, 0xD5, 0x30, 0x36, 0xA5, 0x38,  

    0xBF, 0x40, 0xA3, 0x9E, 0x81, 0xF3, 0xD7, 0xFB,  

    0x7C, 0xE3, 0x39, 0x82, 0x9B, 0x2F, 0xFF, 0x87,  

    0x34, 0x8E, 0x43, 0x44, 0xC4, 0xDE, 0xE9, 0xCB,  

    0x54, 0x7B, 0x94, 0x32, 0xA6, 0xC2, 0x23, 0x3D,  

    0xEE, 0x4C, 0x95, 0x0B, 0x42, 0xFA, 0xC3, 0x4E,  

    0x08, 0x2E, 0xA1, 0x66, 0x28, 0xD9, 0x24, 0xB2,  

    0x76, 0x5B, 0xA2, 0x49, 0x6D, 0x8B, 0xD1, 0x25,  

    0x72, 0xF8, 0xF6, 0x64, 0x86, 0x68, 0x98, 0x16,  

    0xD4, 0xA4, 0x5C, 0xCC, 0x5D, 0x65, 0xB6, 0x92,  

    0x6C, 0x70, 0x48, 0x50, 0xFD, 0xED, 0xB9, 0xDA,  

    0x5E, 0x15, 0x46, 0x57, 0xA7, 0x8D, 0x9D, 0x84,  

    0x90, 0xD8, 0xAB, 0x00, 0x8C, 0xBC, 0xD3, 0x0A,  

    0xF7, 0xE4, 0x58, 0x05, 0xB8, 0xB3, 0x45, 0x06,  

    0xD0, 0x2C, 0x1E, 0x8F, 0xCA, 0x3F, 0x0F, 0x02,  

    0xC1, 0xAF, 0xBD, 0x03, 0x01, 0x13, 0x8A, 0x6B,  

    0x3A, 0x91, 0x11, 0x41, 0x4F, 0x67, 0xDC, 0xEA,  

    0x97, 0xF2, 0xCF, 0xCE, 0xF0, 0xB4, 0xE6, 0x73,  

    0x96, 0xAC, 0x74, 0x22, 0xE7, 0xAD, 0x35, 0x85,  

    0xE2, 0xF9, 0x37, 0xE8, 0x1C, 0x75, 0xDF, 0x6E,  

    0x47, 0xF1, 0x1A, 0x71, 0x1D, 0x29, 0xC5, 0x89,  

    0x6F, 0xB7, 0x62, 0x0E, 0xAA, 0x18, 0xBE, 0x1B,  

    0xFC, 0x56, 0x3E, 0x4B, 0xC6, 0xD2, 0x79, 0x20,  

    0x9A, 0xDB, 0xC0, 0xFE, 0x78, 0xCD, 0x5A, 0xF4,  

    0x1F, 0xDD, 0xA8, 0x33, 0x88, 0x07, 0xC7, 0x31,  

    0xB1, 0x12, 0x10, 0x59, 0x27, 0x80, 0xEC, 0x5F,  

    0x60, 0x51, 0x7F, 0xA9, 0x19, 0xB5, 0x4A, 0x0D,  

    0x2D, 0xE5, 0x7A, 0x9F, 0x93, 0xC9, 0x9C, 0xEF,  

    0xA0, 0xE0, 0x3B, 0x4D, 0xAE, 0x2A, 0xF5, 0xB0,  

    0xC8, 0xEB, 0xBB, 0x3C, 0x83, 0x53, 0x99, 0x61,  

    0x17, 0x2B, 0x04, 0x7E, 0xBA, 0x77, 0xD6, 0x26,  

    0xE1, 0x69, 0x14, 0x63, 0x55, 0x21, 0x0C, 0x7D  

};  

  

//reverse table   

#define RT \   

    \  

    V(51,F4,A7,50), V(7E,41,65,53), V(1A,17,A4,C3), V(3A,27,5E,96), \  

    V(3B,AB,6B,CB), V(1F,9D,45,F1), V(AC,FA,58,AB), V(4B,E3,03,93), \  

    V(20,30,FA,55), V(AD,76,6D,F6), V(88,CC,76,91), V(F5,02,4C,25), \  

    V(4F,E5,D7,FC), V(C5,2A,CB,D7), V(26,35,44,80), V(B5,62,A3,8F), \  

    V(DE,B1,5A,49), V(25,BA,1B,67), V(45,EA,0E,98), V(5D,FE,C0,E1), \  

    V(C3,2F,75,02), V(81,4C,F0,12), V(8D,46,97,A3), V(6B,D3,F9,C6), \  

    V(03,8F,5F,E7), V(15,92,9C,95), V(BF,6D,7A,EB), V(95,52,59,DA), \  

    V(D4,BE,83,2D), V(58,74,21,D3), V(49,E0,69,29), V(8E,C9,C8,44), \  

    V(75,C2,89,6A), V(F4,8E,79,78), V(99,58,3E,6B), V(27,B9,71,DD), \  

    V(BE,E1,4F,B6), V(F0,88,AD,17), V(C9,20,AC,66), V(7D,CE,3A,B4), \  

    V(63,DF,4A,18), V(E5,1A,31,82), V(97,51,33,60), V(62,53,7F,45), \  

    V(B1,64,77,E0), V(BB,6B,AE,84), V(FE,81,A0,1C), V(F9,08,2B,94), \  

    V(70,48,68,58), V(8F,45,FD,19), V(94,DE,6C,87), V(52,7B,F8,B7), \  

    V(AB,73,D3,23), V(72,4B,02,E2), V(E3,1F,8F,57), V(66,55,AB,2A), \  

    V(B2,EB,28,07), V(2F,B5,C2,03), V(86,C5,7B,9A), V(D3,37,08,A5), \  

    V(30,28,87,F2), V(23,BF,A5,B2), V(02,03,6A,BA), V(ED,16,82,5C), \  

    V(8A,CF,1C,2B), V(A7,79,B4,92), V(F3,07,F2,F0), V(4E,69,E2,A1), \  

    V(65,DA,F4,CD), V(06,05,BE,D5), V(D1,34,62,1F), V(C4,A6,FE,8A), \  

    V(34,2E,53,9D), V(A2,F3,55,A0), V(05,8A,E1,32), V(A4,F6,EB,75), \  

    V(0B,83,EC,39), V(40,60,EF,AA), V(5E,71,9F,06), V(BD,6E,10,51), \  

    V(3E,21,8A,F9), V(96,DD,06,3D), V(DD,3E,05,AE), V(4D,E6,BD,46), \  

    V(91,54,8D,B5), V(71,C4,5D,05), V(04,06,D4,6F), V(60,50,15,FF), \  

    V(19,98,FB,24), V(D6,BD,E9,97), V(89,40,43,CC), V(67,D9,9E,77), \  

    V(B0,E8,42,BD), V(07,89,8B,88), V(E7,19,5B,38), V(79,C8,EE,DB), \  

    V(A1,7C,0A,47), V(7C,42,0F,E9), V(F8,84,1E,C9), V(00,00,00,00), \  

    V(09,80,86,83), V(32,2B,ED,48), V(1E,11,70,AC), V(6C,5A,72,4E), \  

    V(FD,0E,FF,FB), V(0F,85,38,56), V(3D,AE,D5,1E), V(36,2D,39,27), \  

    V(0A,0F,D9,64), V(68,5C,A6,21), V(9B,5B,54,D1), V(24,36,2E,3A), \  

    V(0C,0A,67,B1), V(93,57,E7,0F), V(B4,EE,96,D2), V(1B,9B,91,9E), \  

    V(80,C0,C5,4F), V(61,DC,20,A2), V(5A,77,4B,69), V(1C,12,1A,16), \  

    V(E2,93,BA,0A), V(C0,A0,2A,E5), V(3C,22,E0,43), V(12,1B,17,1D), \  

    V(0E,09,0D,0B), V(F2,8B,C7,AD), V(2D,B6,A8,B9), V(14,1E,A9,C8), \  

    V(57,F1,19,85), V(AF,75,07,4C), V(EE,99,DD,BB), V(A3,7F,60,FD), \  

    V(F7,01,26,9F), V(5C,72,F5,BC), V(44,66,3B,C5), V(5B,FB,7E,34), \  

    V(8B,43,29,76), V(CB,23,C6,DC), V(B6,ED,FC,68), V(B8,E4,F1,63), \  

    V(D7,31,DC,CA), V(42,63,85,10), V(13,97,22,40), V(84,C6,11,20), \  

    V(85,4A,24,7D), V(D2,BB,3D,F8), V(AE,F9,32,11), V(C7,29,A1,6D), \  

    V(1D,9E,2F,4B), V(DC,B2,30,F3), V(0D,86,52,EC), V(77,C1,E3,D0), \  

    V(2B,B3,16,6C), V(A9,70,B9,99), V(11,94,48,FA), V(47,E9,64,22), \  

    V(A8,FC,8C,C4), V(A0,F0,3F,1A), V(56,7D,2C,D8), V(22,33,90,EF), \  

    V(87,49,4E,C7), V(D9,38,D1,C1), V(8C,CA,A2,FE), V(98,D4,0B,36), \  

    V(A6,F5,81,CF), V(A5,7A,DE,28), V(DA,B7,8E,26), V(3F,AD,BF,A4), \  

    V(2C,3A,9D,E4), V(50,78,92,0D), V(6A,5F,CC,9B), V(54,7E,46,62), \  

    V(F6,8D,13,C2), V(90,D8,B8,E8), V(2E,39,F7,5E), V(82,C3,AF,F5), \  

    V(9F,5D,80,BE), V(69,D0,93,7C), V(6F,D5,2D,A9), V(CF,25,12,B3), \  

    V(C8,AC,99,3B), V(10,18,7D,A7), V(E8,9C,63,6E), V(DB,3B,BB,7B), \  

    V(CD,26,78,09), V(6E,59,18,F4), V(EC,9A,B7,01), V(83,4F,9A,A8), \  

    V(E6,95,6E,65), V(AA,FF,E6,7E), V(21,BC,CF,08), V(EF,15,E8,E6), \  

    V(BA,E7,9B,D9), V(4A,6F,36,CE), V(EA,9F,09,D4), V(29,B0,7C,D6), \  

    V(31,A4,B2,AF), V(2A,3F,23,31), V(C6,A5,94,30), V(35,A2,66,C0), \  

    V(74,4E,BC,37), V(FC,82,CA,A6), V(E0,90,D0,B0), V(33,A7,D8,15), \  

    V(F1,04,98,4A), V(41,EC,DA,F7), V(7F,CD,50,0E), V(17,91,F6,2F), \  

    V(76,4D,D6,8D), V(43,EF,B0,4D), V(CC,AA,4D,54), V(E4,96,04,DF), \  

    V(9E,D1,B5,E3), V(4C,6A,88,1B), V(C1,2C,1F,B8), V(46,65,51,7F), \  

    V(9D,5E,EA,04), V(01,8C,35,5D), V(FA,87,74,73), V(FB,0B,41,2E), \  

    V(B3,67,1D,5A), V(92,DB,D2,52), V(E9,10,56,33), V(6D,D6,47,13), \  

    V(9A,D7,61,8C), V(37,A1,0C,7A), V(59,F8,14,8E), V(EB,13,3C,89), \  

    V(CE,A9,27,EE), V(B7,61,C9,35), V(E1,1C,E5,ED), V(7A,47,B1,3C), \  

    V(9C,D2,DF,59), V(55,F2,73,3F), V(18,14,CE,79), V(73,C7,37,BF), \  

    V(53,F7,CD,EA), V(5F,FD,AA,5B), V(DF,3D,6F,14), V(78,44,DB,86), \  

    V(CA,AF,F3,81), V(B9,68,C4,3E), V(38,24,34,2C), V(C2,A3,40,5F), \  

    V(16,1D,C3,72), V(BC,E2,25,0C), V(28,3C,49,8B), V(FF,0D,95,41), \  

    V(39,A8,01,71), V(08,0C,B3,DE), V(D8,B4,E4,9C), V(64,56,C1,90), \  

    V(7B,CB,84,61), V(D5,32,B6,70), V(48,6C,5C,74), V(D0,B8,57,42)  

  

#define V(a,b,c,d) 0x##a##b##c##d   

static unsigned long RT0[256] = { RT };  

#undef V   

  

#define V(a,b,c,d) 0x##d##a##b##c   

static unsigned long RT1[256] = { RT };  

#undef V   

  

#define V(a,b,c,d) 0x##c##d##a##b   

static unsigned long RT2[256] = { RT };  

#undef V   

  

#define V(a,b,c,d) 0x##b##c##d##a   

static unsigned long RT3[256] = { RT };  

#undef V   

  

//round constants   

static unsigned long RCON[10] =  

{  

    0x01000000, 0x02000000, 0x04000000, 0x08000000,  

    0x10000000, 0x20000000, 0x40000000, 0x80000000,  

    0x1B000000, 0x36000000  

};  

  

//key scheduling routine   

int AAES_SetKey(void* r_pvAMPSContext, void* r_pvAMPSAESContext, unsigned char* r_puchKey, int r_nBits)  

{  

    t_AMPSAESContext* poAMPSAESContext = r_pvAMPSAESContext;  

    int i;  

    unsigned long* RK;  

  

    switch( r_nBits )  

    {  

        case 128: poAMPSAESContext->nNoOfRounds = 10; break;  

        case 192: poAMPSAESContext->nNoOfRounds = 12; break;  

        case 256: poAMPSAESContext->nNoOfRounds = 14; break;  

        default : return( 1 );  

    }  

  

    RK = poAMPSAESContext->ulEncRoundKeys;  

  

    for( i = 0; i < (r_nBits >> 5); i++ )  

    {  

        GET_UINT32( RK[i], r_puchKey, i * 4 );  

    }  

  

    //setup encryption round keys   

    switch( r_nBits )  

    {  

    case 128:  

  

        for( i = 0; i < 10; i++, RK += 4 )  

        {  

            RK[4]  = RK[0] ^ RCON[i] ^  

                ( FSb[ (unsigned char) ( RK[3] >> 16 ) ] << 24 ) ^  

                ( FSb[ (unsigned char) ( RK[3] >>  8 ) ] << 16 ) ^  

                ( FSb[ (unsigned char) ( RK[3]       ) ] <<  8 ) ^  

                ( FSb[ (unsigned char) ( RK[3] >> 24 ) ]       );  

  

            RK[5]  = RK[1] ^ RK[4];  

            RK[6]  = RK[2] ^ RK[5];  

            RK[7]  = RK[3] ^ RK[6];  

        }  

        break;  

  

    case 192:  

  

        for( i = 0; i < 8; i++, RK += 6 )  

        {  

            RK[6]  = RK[0] ^ RCON[i] ^  

                ( FSb[ (unsigned char) ( RK[5] >> 16 ) ] << 24 ) ^  

                ( FSb[ (unsigned char) ( RK[5] >>  8 ) ] << 16 ) ^  

                ( FSb[ (unsigned char) ( RK[5]       ) ] <<  8 ) ^  

                ( FSb[ (unsigned char) ( RK[5] >> 24 ) ]       );  

  

            RK[7]  = RK[1] ^ RK[6];  

            RK[8]  = RK[2] ^ RK[7];  

            RK[9]  = RK[3] ^ RK[8];  

            RK[10] = RK[4] ^ RK[9];  

            RK[11] = RK[5] ^ RK[10];  

        }  

        break;  

  

    case 256:  

  

        for( i = 0; i < 7; i++, RK += 8 )  

        {  

            RK[8]  = RK[0] ^ RCON[i] ^  

                ( FSb[ (unsigned char) ( RK[7] >> 16 ) ] << 24 ) ^  

                ( FSb[ (unsigned char) ( RK[7] >>  8 ) ] << 16 ) ^  

                ( FSb[ (unsigned char) ( RK[7]       ) ] <<  8 ) ^  

                ( FSb[ (unsigned char) ( RK[7] >> 24 ) ]       );  

  

            RK[9]  = RK[1] ^ RK[8];  

            RK[10] = RK[2] ^ RK[9];  

            RK[11] = RK[3] ^ RK[10];  

  

            RK[12] = RK[4] ^  

                ( FSb[ (unsigned char) ( RK[11] >> 24 ) ] << 24 ) ^  

                ( FSb[ (unsigned char) ( RK[11] >> 16 ) ] << 16 ) ^  

                ( FSb[ (unsigned char) ( RK[11] >>  8 ) ] <<  8 ) ^  

                ( FSb[ (unsigned char) ( RK[11]       ) ]       );  

  

            RK[13] = RK[5] ^ RK[12];  

            RK[14] = RK[6] ^ RK[13];  

            RK[15] = RK[7] ^ RK[14];  

        }  

        break;  

    }  

  

    //setup decryption round keys   

    for( i = 0; i <= poAMPSAESContext->nNoOfRounds; i++ )  

    {  

        poAMPSAESContext->ulDecRoundKeys[i * 4    ] = poAMPSAESContext->ulEncRoundKeys[( poAMPSAESContext->nNoOfRounds - i ) * 4    ];  

        poAMPSAESContext->ulDecRoundKeys[i * 4 + 1] = poAMPSAESContext->ulEncRoundKeys[( poAMPSAESContext->nNoOfRounds - i ) * 4 + 1];  

        poAMPSAESContext->ulDecRoundKeys[i * 4 + 2] = poAMPSAESContext->ulEncRoundKeys[( poAMPSAESContext->nNoOfRounds - i ) * 4 + 2];  

        poAMPSAESContext->ulDecRoundKeys[i * 4 + 3] = poAMPSAESContext->ulEncRoundKeys[( poAMPSAESContext->nNoOfRounds - i ) * 4 + 3];  

    }  

  

    for( i = 1, RK = poAMPSAESContext->ulDecRoundKeys + 4; i < poAMPSAESContext->nNoOfRounds; i++, RK += 4 )  

    {  

        RK[0] = RT0[ FSb[ (unsigned char) ( RK[0] >> 24 ) ] ] ^  

            RT1[ FSb[ (unsigned char) ( RK[0] >> 16 ) ] ] ^  

            RT2[ FSb[ (unsigned char) ( RK[0] >>  8 ) ] ] ^  

            RT3[ FSb[ (unsigned char) ( RK[0]       ) ] ];  

  

        RK[1] = RT0[ FSb[ (unsigned char) ( RK[1] >> 24 ) ] ] ^  

            RT1[ FSb[ (unsigned char) ( RK[1] >> 16 ) ] ] ^  

            RT2[ FSb[ (unsigned char) ( RK[1] >>  8 ) ] ] ^  

            RT3[ FSb[ (unsigned char) ( RK[1]       ) ] ];  

  

        RK[2] = RT0[ FSb[ (unsigned char) ( RK[2] >> 24 ) ] ] ^  

            RT1[ FSb[ (unsigned char) ( RK[2] >> 16 ) ] ] ^  

            RT2[ FSb[ (unsigned char) ( RK[2] >>  8 ) ] ] ^  

            RT3[ FSb[ (unsigned char) ( RK[2]       ) ] ];  

  

        RK[3] = RT0[ FSb[ (unsigned char) ( RK[3] >> 24 ) ] ] ^  

            RT1[ FSb[ (unsigned char) ( RK[3] >> 16 ) ] ] ^  

            RT2[ FSb[ (unsigned char) ( RK[3] >>  8 ) ] ] ^  

            RT3[ FSb[ (unsigned char) ( RK[3]       ) ] ];  

    }  

  

    return( 0 );  

}  

  

//128-bit block encryption routine   

void AAES_Encrypt(void* r_pvAMPSContext, void* r_pvAMPSAESContext, unsigned char* r_puchInputBuff, unsigned int r_unInputBuffLength, unsigned char* r_puchOutputBuff)  

{  

    t_AMPSAESContext* poAMPSAESContext = r_pvAMPSAESContext;  

    unsigned long *RK, X0, X1, X2, X3, Y0, Y1, Y2, Y3;  

    unsigned char* puchInputBuff = NULL;  

    unsigned char* puchOutputBuff = NULL;  

    int nLoopCount = r_unInputBuffLength/16;  

    int nBuffOffSet = 0;  

  

    for(; nLoopCount >= 0; nLoopCount--, nBuffOffSet+=16)  

    {  

        X0 = 0;  

        X1 = 0;  

        X2 = 0;  

        X3 = 0;  

        Y0 = 0;  

        Y1 = 0;  

        Y2 = 0;  

        Y3 = 0;  

  

        puchInputBuff = r_puchInputBuff + nBuffOffSet;  

        puchOutputBuff = r_puchOutputBuff + nBuffOffSet;  

  

        RK = poAMPSAESContext->ulEncRoundKeys;  

  

        GET_UINT32( X0, puchInputBuff,  0 ); X0 ^= RK[0];  

        GET_UINT32( X1, puchInputBuff,  4 ); X1 ^= RK[1];  

        GET_UINT32( X2, puchInputBuff,  8 ); X2 ^= RK[2];  

        GET_UINT32( X3, puchInputBuff, 12 ); X3 ^= RK[3];  

  

#define FROUND(X0,X1,X2,X3,Y0,Y1,Y2,Y3)         \   

        {                                               \  

        RK += 4;                                    \  

        \  

        X0 = RK[0] ^ FT0[ (unsigned char) ( Y0 >> 24 ) ] ^  \  

        FT1[ (unsigned char) ( Y1 >> 16 ) ] ^  \  

        FT2[ (unsigned char) ( Y2 >>  8 ) ] ^  \  

        FT3[ (unsigned char) ( Y3       ) ];   \  

        \  

        X1 = RK[1] ^ FT0[ (unsigned char) ( Y1 >> 24 ) ] ^  \  

        FT1[ (unsigned char) ( Y2 >> 16 ) ] ^  \  

        FT2[ (unsigned char) ( Y3 >>  8 ) ] ^  \  

        FT3[ (unsigned char) ( Y0       ) ];   \  

        \  

        X2 = RK[2] ^ FT0[ (unsigned char) ( Y2 >> 24 ) ] ^  \  

        FT1[ (unsigned char) ( Y3 >> 16 ) ] ^  \  

        FT2[ (unsigned char) ( Y0 >>  8 ) ] ^  \  

        FT3[ (unsigned char) ( Y1       ) ];   \  

        \  

        X3 = RK[3] ^ FT0[ (unsigned char) ( Y3 >> 24 ) ] ^  \  

        FT1[ (unsigned char) ( Y0 >> 16 ) ] ^  \  

        FT2[ (unsigned char) ( Y1 >>  8 ) ] ^  \  

        FT3[ (unsigned char) ( Y2       ) ];   \  

        }  

  

        FROUND( Y0, Y1, Y2, Y3, X0, X1, X2, X3 );           //round 1   

        FROUND( X0, X1, X2, X3, Y0, Y1, Y2, Y3 );           //round 2   

        FROUND( Y0, Y1, Y2, Y3, X0, X1, X2, X3 );           //round 3   

        FROUND( X0, X1, X2, X3, Y0, Y1, Y2, Y3 );           //round 4   

        FROUND( Y0, Y1, Y2, Y3, X0, X1, X2, X3 );           //round 5   

        FROUND( X0, X1, X2, X3, Y0, Y1, Y2, Y3 );           //round 6   

        FROUND( Y0, Y1, Y2, Y3, X0, X1, X2, X3 );           //round 7   

        FROUND( X0, X1, X2, X3, Y0, Y1, Y2, Y3 );           //round 8   

        FROUND( Y0, Y1, Y2, Y3, X0, X1, X2, X3 );           //round 9   

  

        if( poAMPSAESContext->nNoOfRounds > 10 )  

        {  

            FROUND( X0, X1, X2, X3, Y0, Y1, Y2, Y3 );       //round 10   

            FROUND( Y0, Y1, Y2, Y3, X0, X1, X2, X3 );       //round 11   

        }  

  

        if( poAMPSAESContext->nNoOfRounds > 12 )  

        {  

            FROUND( X0, X1, X2, X3, Y0, Y1, Y2, Y3 );       //round 12   

            FROUND( Y0, Y1, Y2, Y3, X0, X1, X2, X3 );       //round 13   

        }  

  

        //last round   

        RK += 4;  

  

        X0 = RK[0] ^ ( FSb[ (unsigned char) ( Y0 >> 24 ) ] << 24 ) ^  

            ( FSb[ (unsigned char) ( Y1 >> 16 ) ] << 16 ) ^  

            ( FSb[ (unsigned char) ( Y2 >>  8 ) ] <<  8 ) ^  

            ( FSb[ (unsigned char) ( Y3       ) ]       );  

  

        X1 = RK[1] ^ ( FSb[ (unsigned char) ( Y1 >> 24 ) ] << 24 ) ^  

            ( FSb[ (unsigned char) ( Y2 >> 16 ) ] << 16 ) ^  

            ( FSb[ (unsigned char) ( Y3 >>  8 ) ] <<  8 ) ^  

            ( FSb[ (unsigned char) ( Y0       ) ]       );  

  

        X2 = RK[2] ^ ( FSb[ (unsigned char) ( Y2 >> 24 ) ] << 24 ) ^  

            ( FSb[ (unsigned char) ( Y3 >> 16 ) ] << 16 ) ^  

            ( FSb[ (unsigned char) ( Y0 >>  8 ) ] <<  8 ) ^  

            ( FSb[ (unsigned char) ( Y1       ) ]       );  

  

        X3 = RK[3] ^ ( FSb[ (unsigned char) ( Y3 >> 24 ) ] << 24 ) ^  

            ( FSb[ (unsigned char) ( Y0 >> 16 ) ] << 16 ) ^  

            ( FSb[ (unsigned char) ( Y1 >>  8 ) ] <<  8 ) ^  

            ( FSb[ (unsigned char) ( Y2       ) ]       );  

  

        PUT_UINT32( X0, puchOutputBuff,  0 );  

        PUT_UINT32( X1, puchOutputBuff,  4 );  

        PUT_UINT32( X2, puchOutputBuff,  8 );  

        PUT_UINT32( X3, puchOutputBuff, 12 );  

  

    }  

}  

  

// 128-bit block decryption routine   

void AAES_Decrypt(void* r_pvAMPSContext, void* r_pvAMPSAESContext, unsigned char* r_puchInputBuff, unsigned int r_unInputBuffLength, unsigned char* r_puchOutputBuff)  

{  

    t_AMPSAESContext* poAMPSAESContext = r_pvAMPSAESContext;  

    unsigned long *RK, X0, X1, X2, X3, Y0, Y1, Y2, Y3;  

  

    unsigned char* puchInputBuff = NULL;  

    unsigned char* puchOutputBuff = NULL;  

    int nLoopCount = r_unInputBuffLength/16;  

    int nBuffOffSet = 0;  

  

    for(; nLoopCount >= 0; nLoopCount--, nBuffOffSet+=16)  

    {  

        X0 = 0;  

        X1 = 0;  

        X2 = 0;  

        X3 = 0;  

        Y0 = 0;  

        Y1 = 0;  

        Y2 = 0;  

        Y3 = 0;  

  

        puchInputBuff = r_puchInputBuff + nBuffOffSet;  

        puchOutputBuff = r_puchOutputBuff + nBuffOffSet;  

  

        RK = poAMPSAESContext->ulDecRoundKeys;  

  

        GET_UINT32( X0, puchInputBuff,  0 ); X0 ^= RK[0];  

        GET_UINT32( X1, puchInputBuff,  4 ); X1 ^= RK[1];  

        GET_UINT32( X2, puchInputBuff,  8 ); X2 ^= RK[2];  

        GET_UINT32( X3, puchInputBuff, 12 ); X3 ^= RK[3];  

  

    #define RROUND(X0,X1,X2,X3,Y0,Y1,Y2,Y3)         \   

        {                                               \  

        RK += 4;                                    \  

        \  

        X0 = RK[0] ^ RT0[ (unsigned char) ( Y0 >> 24 ) ] ^  \  

        RT1[ (unsigned char) ( Y3 >> 16 ) ] ^  \  

        RT2[ (unsigned char) ( Y2 >>  8 ) ] ^  \  

        RT3[ (unsigned char) ( Y1       ) ];   \  

        \  

        X1 = RK[1] ^ RT0[ (unsigned char) ( Y1 >> 24 ) ] ^  \  

        RT1[ (unsigned char) ( Y0 >> 16 ) ] ^  \  

        RT2[ (unsigned char) ( Y3 >>  8 ) ] ^  \  

        RT3[ (unsigned char) ( Y2       ) ];   \  

        \  

        X2 = RK[2] ^ RT0[ (unsigned char) ( Y2 >> 24 ) ] ^  \  

        RT1[ (unsigned char) ( Y1 >> 16 ) ] ^  \  

        RT2[ (unsigned char) ( Y0 >>  8 ) ] ^  \  

        RT3[ (unsigned char) ( Y3       ) ];   \  

        \  

        X3 = RK[3] ^ RT0[ (unsigned char) ( Y3 >> 24 ) ] ^  \  

        RT1[ (unsigned char) ( Y2 >> 16 ) ] ^  \  

        RT2[ (unsigned char) ( Y1 >>  8 ) ] ^  \  

        RT3[ (unsigned char) ( Y0       ) ];   \  

        }  

  

        RROUND( Y0, Y1, Y2, Y3, X0, X1, X2, X3 );           //round 1   

        RROUND( X0, X1, X2, X3, Y0, Y1, Y2, Y3 );           //round 2   

        RROUND( Y0, Y1, Y2, Y3, X0, X1, X2, X3 );           //round 3   

        RROUND( X0, X1, X2, X3, Y0, Y1, Y2, Y3 );           //round 4   

        RROUND( Y0, Y1, Y2, Y3, X0, X1, X2, X3 );           //round 5   

        RROUND( X0, X1, X2, X3, Y0, Y1, Y2, Y3 );           //round 6   

        RROUND( Y0, Y1, Y2, Y3, X0, X1, X2, X3 );           //round 7   

        RROUND( X0, X1, X2, X3, Y0, Y1, Y2, Y3 );           //round 8   

        RROUND( Y0, Y1, Y2, Y3, X0, X1, X2, X3 );           //round 9   

  

        if( poAMPSAESContext->nNoOfRounds > 10 )  

        {  

            RROUND( X0, X1, X2, X3, Y0, Y1, Y2, Y3 );       //round 10   

            RROUND( Y0, Y1, Y2, Y3, X0, X1, X2, X3 );       //round 11   

        }  

  

        if( poAMPSAESContext->nNoOfRounds > 12 )  

        {  

            RROUND( X0, X1, X2, X3, Y0, Y1, Y2, Y3 );       //round 12   

            RROUND( Y0, Y1, Y2, Y3, X0, X1, X2, X3 );       //round 13   

        }  

  

        //last round   

  

        RK += 4;  

  

        X0 = RK[0] ^ ( RSb[ (unsigned char) ( Y0 >> 24 ) ] << 24 ) ^  

            ( RSb[ (unsigned char) ( Y3 >> 16 ) ] << 16 ) ^  

            ( RSb[ (unsigned char) ( Y2 >>  8 ) ] <<  8 ) ^  

            ( RSb[ (unsigned char) ( Y1       ) ]       );  

  

        X1 = RK[1] ^ ( RSb[ (unsigned char) ( Y1 >> 24 ) ] << 24 ) ^  

            ( RSb[ (unsigned char) ( Y0 >> 16 ) ] << 16 ) ^  

            ( RSb[ (unsigned char) ( Y3 >>  8 ) ] <<  8 ) ^  

            ( RSb[ (unsigned char) ( Y2       ) ]       );  

  

        X2 = RK[2] ^ ( RSb[ (unsigned char) ( Y2 >> 24 ) ] << 24 ) ^  

            ( RSb[ (unsigned char) ( Y1 >> 16 ) ] << 16 ) ^  

            ( RSb[ (unsigned char) ( Y0 >>  8 ) ] <<  8 ) ^  

            ( RSb[ (unsigned char) ( Y3       ) ]       );  

  

        X3 = RK[3] ^ ( RSb[ (unsigned char) ( Y3 >> 24 ) ] << 24 ) ^  

            ( RSb[ (unsigned char) ( Y2 >> 16 ) ] << 16 ) ^  

            ( RSb[ (unsigned char) ( Y1 >>  8 ) ] <<  8 ) ^  

            ( RSb[ (unsigned char) ( Y0       ) ]       );  

  

        PUT_UINT32( X0, puchOutputBuff,  0 );  

        PUT_UINT32( X1, puchOutputBuff,  4 );  

        PUT_UINT32( X2, puchOutputBuff,  8 );  

        PUT_UINT32( X3, puchOutputBuff, 12 );  

    }  

}  

 

#include "AMPS_Core.h"

#include "AMPS_Defines.h"

#include "AMPS_MemMgt.h"

#include "AMPS_AES.h"

#include "AMPS_LinkList.h"

 

void* AAES_Init(void* r_pvAMPSContext)

{

t_AMPSAESContext* poAMPSAESContext = NULL;

 

TRACE(MD5_TRACE_ID(r_pvAMPSContext), AMPS_TRACE_LEVEL_INFO, "Entering.\n");

 

poAMPSAESContext = (t_AMPSAESContext*)AMPS_InternalMalloc(sizeof(t_AMPSAESContext));

if(NULL == poAMPSAESContext)

{

TRACE( MD5_TRACE_ID(r_pvAMPSContext), AMPS_TRACE_LEVEL_ERROR, "AMPS_InternalMalloc failed for poAMPSAESContext.\n");

return NULL;

}

 

TRACE( MD5_TRACE_ID(r_pvAMPSContext), AMPS_TRACE_LEVEL_INFO, "Leaving.\n");

return poAMPSAESContext;

}

 

void AAES_Cleanup(void* r_pvAMPSContext, void* r_pvAMPSAESContext)

{

TRACE( MD5_TRACE_ID(r_pvAMPSContext), AMPS_TRACE_LEVEL_INFO, "Entering.\n");

 

TRACE( MD5_TRACE_ID(r_pvAMPSContext), AMPS_TRACE_LEVEL_DEBUG, "AMPS_InternalFree called for r_pvAMPSAESContext.\n");

AMPS_InternalFree(r_pvAMPSAESContext);

 

TRACE( MD5_TRACE_ID(r_pvAMPSContext), AMPS_TRACE_LEVEL_INFO, "Leaving.\n");

}

 

/*加密时使用的置换表*/

//forward S-box

static unsigned long FSb[256] =

{

0x63, 0x7C, 0x77, 0x7B, 0xF2, 0x6B, 0x6F, 0xC5,

0x30, 0x01, 0x67, 0x2B, 0xFE, 0xD7, 0xAB, 0x76,

0xCA, 0x82, 0xC9, 0x7D, 0xFA, 0x59, 0x47, 0xF0,

0xAD, 0xD4, 0xA2, 0xAF, 0x9C, 0xA4, 0x72, 0xC0,

0xB7, 0xFD, 0x93, 0x26, 0x36, 0x3F, 0xF7, 0xCC,

0x34, 0xA5, 0xE5, 0xF1, 0x71, 0xD8, 0x31, 0x15,

0x04, 0xC7, 0x23, 0xC3, 0x18, 0x96, 0x05, 0x9A,

0x07, 0x12, 0x80, 0xE2, 0xEB, 0x27, 0xB2, 0x75,

0x09, 0x83, 0x2C, 0x1A, 0x1B, 0x6E, 0x5A, 0xA0,

0x52, 0x3B, 0xD6, 0xB3, 0x29, 0xE3, 0x2F, 0x84,

0x53, 0xD1, 0x00, 0xED, 0x20, 0xFC, 0xB1, 0x5B,

0x6A, 0xCB, 0xBE, 0x39, 0x4A, 0x4C, 0x58, 0xCF,

0xD0, 0xEF, 0xAA, 0xFB, 0x43, 0x4D, 0x33, 0x85,

0x45, 0xF9, 0x02, 0x7F, 0x50, 0x3C, 0x9F, 0xA8,

0x51, 0xA3, 0x40, 0x8F, 0x92, 0x9D, 0x38, 0xF5,

0xBC, 0xB6, 0xDA, 0x21, 0x10, 0xFF, 0xF3, 0xD2,

0xCD, 0x0C, 0x13, 0xEC, 0x5F, 0x97, 0x44, 0x17,

0xC4, 0xA7, 0x7E, 0x3D, 0x64, 0x5D, 0x19, 0x73,

0x60, 0x81, 0x4F, 0xDC, 0x22, 0x2A, 0x90, 0x88,

0x46, 0xEE, 0xB8, 0x14, 0xDE, 0x5E, 0x0B, 0xDB,

0xE0, 0x32, 0x3A, 0x0A, 0x49, 0x06, 0x24, 0x5C,

0xC2, 0xD3, 0xAC, 0x62, 0x91, 0x95, 0xE4, 0x79,

0xE7, 0xC8, 0x37, 0x6D, 0x8D, 0xD5, 0x4E, 0xA9,

0x6C, 0x56, 0xF4, 0xEA, 0x65, 0x7A, 0xAE, 0x08,

0xBA, 0x78, 0x25, 0x2E, 0x1C, 0xA6, 0xB4, 0xC6,

0xE8, 0xDD, 0x74, 0x1F, 0x4B, 0xBD, 0x8B, 0x8A,

0x70, 0x3E, 0xB5, 0x66, 0x48, 0x03, 0xF6, 0x0E,

0x61, 0x35, 0x57, 0xB9, 0x86, 0xC1, 0x1D, 0x9E,

0xE1, 0xF8, 0x98, 0x11, 0x69, 0xD9, 0x8E, 0x94,

0x9B, 0x1E, 0x87, 0xE9, 0xCE, 0x55, 0x28, 0xDF,

0x8C, 0xA1, 0x89, 0x0D, 0xBF, 0xE6, 0x42, 0x68,

0x41, 0x99, 0x2D, 0x0F, 0xB0, 0x54, 0xBB, 0x16

};

 

//forward table

#define FT \

\

V(C6,63,63,A5), V(F8,7C,7C,84), V(EE,77,77,99), V(F6,7B,7B,8D), \

V(FF,F2,F2,0D), V(D6,6B,6B,BD), V(DE,6F,6F,B1), V(91,C5,C5,54), \

V(60,30,30,50), V(02,01,01,03), V(CE,67,67,A9), V(56,2B,2B,7D), \

V(E7,FE,FE,19), V(B5,D7,D7,62), V(4D,AB,AB,E6), V(EC,76,76,9A), \

V(8F,CA,CA,45), V(1F,82,82,9D), V(89,C9,C9,40), V(FA,7D,7D,87), \

V(EF,FA,FA,15), V(B2,59,59,EB), V(8E,47,47,C9), V(FB,F0,F0,0B), \

V(41,AD,AD,EC), V(B3,D4,D4,67), V(5F,A2,A2,FD), V(45,AF,AF,EA), \

V(23,9C,9C,BF), V(53,A4,A4,F7), V(E4,72,72,96), V(9B,C0,C0,5B), \

V(75,B7,B7,C2), V(E1,FD,FD,1C), V(3D,93,93,AE), V(4C,26,26,6A), \

V(6C,36,36,5A), V(7E,3F,3F,41), V(F5,F7,F7,02), V(83,CC,CC,4F), \

V(68,34,34,5C), V(51,A5,A5,F4), V(D1,E5,E5,34), V(F9,F1,F1,08), \

V(E2,71,71,93), V(AB,D8,D8,73), V(62,31,31,53), V(2A,15,15,3F), \

V(08,04,04,0C), V(95,C7,C7,52), V(46,23,23,65), V(9D,C3,C3,5E), \

V(30,18,18,28), V(37,96,96,A1), V(0A,05,05,0F), V(2F,9A,9A,B5), \

V(0E,07,07,09), V(24,12,12,36), V(1B,80,80,9B), V(DF,E2,E2,3D), \

V(CD,EB,EB,26), V(4E,27,27,69), V(7F,B2,B2,CD), V(EA,75,75,9F), \

V(12,09,09,1B), V(1D,83,83,9E), V(58,2C,2C,74), V(34,1A,1A,2E), \

V(36,1B,1B,2D), V(DC,6E,6E,B2), V(B4,5A,5A,EE), V(5B,A0,A0,FB), \

V(A4,52,52,F6), V(76,3B,3B,4D), V(B7,D6,D6,61), V(7D,B3,B3,CE), \

V(52,29,29,7B), V(DD,E3,E3,3E), V(5E,2F,2F,71), V(13,84,84,97), \

V(A6,53,53,F5), V(B9,D1,D1,68), V(00,00,00,00), V(C1,ED,ED,2C), \

V(40,20,20,60), V(E3,FC,FC,1F), V(79,B1,B1,C8), V(B6,5B,5B,ED), \

V(D4,6A,6A,BE), V(8D,CB,CB,46), V(67,BE,BE,D9), V(72,39,39,4B), \

V(94,4A,4A,DE), V(98,4C,4C,D4), V(B0,58,58,E8), V(85,CF,CF,4A), \

V(BB,D0,D0,6B), V(C5,EF,EF,2A), V(4F,AA,AA,E5), V(ED,FB,FB,16), \

V(86,43,43,C5), V(9A,4D,4D,D7), V(66,33,33,55), V(11,85,85,94), \

V(8A,45,45,CF), V(E9,F9,F9,10), V(04,02,02,06), V(FE,7F,7F,81), \

V(A0,50,50,F0), V(78,3C,3C,44), V(25,9F,9F,BA), V(4B,A8,A8,E3), \

V(A2,51,51,F3), V(5D,A3,A3,FE), V(80,40,40,C0), V(05,8F,8F,8A), \

V(3F,92,92,AD), V(21,9D,9D,BC), V(70,38,38,48), V(F1,F5,F5,04), \

V(63,BC,BC,DF), V(77,B6,B6,C1), V(AF,DA,DA,75), V(42,21,21,63), \

V(20,10,10,30), V(E5,FF,FF,1A), V(FD,F3,F3,0E), V(BF,D2,D2,6D), \

V(81,CD,CD,4C), V(18,0C,0C,14), V(26,13,13,35), V(C3,EC,EC,2F), \

V(BE,5F,5F,E1), V(35,97,97,A2), V(88,44,44,CC), V(2E,17,17,39), \

V(93,C4,C4,57), V(55,A7,A7,F2), V(FC,7E,7E,82), V(7A,3D,3D,47), \

V(C8,64,64,AC), V(BA,5D,5D,E7), V(32,19,19,2B), V(E6,73,73,95), \

V(C0,60,60,A0), V(19,81,81,98), V(9E,4F,4F,D1), V(A3,DC,DC,7F), \

V(44,22,22,66), V(54,2A,2A,7E), V(3B,90,90,AB), V(0B,88,88,83), \

V(8C,46,46,CA), V(C7,EE,EE,29), V(6B,B8,B8,D3), V(28,14,14,3C), \

V(A7,DE,DE,79), V(BC,5E,5E,E2), V(16,0B,0B,1D), V(AD,DB,DB,76), \

V(DB,E0,E0,3B), V(64,32,32,56), V(74,3A,3A,4E), V(14,0A,0A,1E), \

V(92,49,49,DB), V(0C,06,06,0A), V(48,24,24,6C), V(B8,5C,5C,E4), \

V(9F,C2,C2,5D), V(BD,D3,D3,6E), V(43,AC,AC,EF), V(C4,62,62,A6), \

V(39,91,91,A8), V(31,95,95,A4), V(D3,E4,E4,37), V(F2,79,79,8B), \

V(D5,E7,E7,32), V(8B,C8,C8,43), V(6E,37,37,59), V(DA,6D,6D,B7), \

V(01,8D,8D,8C), V(B1,D5,D5,64), V(9C,4E,4E,D2), V(49,A9,A9,E0), \

V(D8,6C,6C,B4), V(AC,56,56,FA), V(F3,F4,F4,07), V(CF,EA,EA,25), \

V(CA,65,65,AF), V(F4,7A,7A,8E), V(47,AE,AE,E9), V(10,08,08,18), \

V(6F,BA,BA,D5), V(F0,78,78,88), V(4A,25,25,6F), V(5C,2E,2E,72), \

V(38,1C,1C,24), V(57,A6,A6,F1), V(73,B4,B4,C7), V(97,C6,C6,51), \

V(CB,E8,E8,23), V(A1,DD,DD,7C), V(E8,74,74,9C), V(3E,1F,1F,21), \

V(96,4B,4B,DD), V(61,BD,BD,DC), V(0D,8B,8B,86), V(0F,8A,8A,85), \

V(E0,70,70,90), V(7C,3E,3E,42), V(71,B5,B5,C4), V(CC,66,66,AA), \

V(90,48,48,D8), V(06,03,03,05), V(F7,F6,F6,01), V(1C,0E,0E,12), \

V(C2,61,61,A3), V(6A,35,35,5F), V(AE,57,57,F9), V(69,B9,B9,D0), \

V(17,86,86,91), V(99,C1,C1,58), V(3A,1D,1D,27), V(27,9E,9E,B9), \

V(D9,E1,E1,38), V(EB,F8,F8,13), V(2B,98,98,B3), V(22,11,11,33), \

V(D2,69,69,BB), V(A9,D9,D9,70), V(07,8E,8E,89), V(33,94,94,A7), \

V(2D,9B,9B,B6), V(3C,1E,1E,22), V(15,87,87,92), V(C9,E9,E9,20), \

V(87,CE,CE,49), V(AA,55,55,FF), V(50,28,28,78), V(A5,DF,DF,7A), \

V(03,8C,8C,8F), V(59,A1,A1,F8), V(09,89,89,80), V(1A,0D,0D,17), \

V(65,BF,BF,DA), V(D7,E6,E6,31), V(84,42,42,C6), V(D0,68,68,B8), \

V(82,41,41,C3), V(29,99,99,B0), V(5A,2D,2D,77), V(1E,0F,0F,11), \

V(7B,B0,B0,CB), V(A8,54,54,FC), V(6D,BB,BB,D6), V(2C,16,16,3A)

 

#define V(a,b,c,d) 0x##a##b##c##d

static unsigned long FT0[256] = { FT };

#undef V

 

#define V(a,b,c,d) 0x##d##a##b##c

static unsigned long FT1[256] = { FT };

#undef V

 

#define V(a,b,c,d) 0x##c##d##a##b

static unsigned long FT2[256] = { FT };

#undef V

 

#define V(a,b,c,d) 0x##b##c##d##a

static unsigned long FT3[256] = { FT };

#undef V

 

/*解密时使用的逆置换表*/

//reverse S-box

static unsigned long RSb[256] =

{

0x52, 0x09, 0x6A, 0xD5, 0x30, 0x36, 0xA5, 0x38,

0xBF, 0x40, 0xA3, 0x9E, 0x81, 0xF3, 0xD7, 0xFB,

0x7C, 0xE3, 0x39, 0x82, 0x9B, 0x2F, 0xFF, 0x87,

0x34, 0x8E, 0x43, 0x44, 0xC4, 0xDE, 0xE9, 0xCB,

0x54, 0x7B, 0x94, 0x32, 0xA6, 0xC2, 0x23, 0x3D,

0xEE, 0x4C, 0x95, 0x0B, 0x42, 0xFA, 0xC3, 0x4E,

0x08, 0x2E, 0xA1, 0x66, 0x28, 0xD9, 0x24, 0xB2,

0x76, 0x5B, 0xA2, 0x49, 0x6D, 0x8B, 0xD1, 0x25,

0x72, 0xF8, 0xF6, 0x64, 0x86, 0x68, 0x98, 0x16,

0xD4, 0xA4, 0x5C, 0xCC, 0x5D, 0x65, 0xB6, 0x92,

0x6C, 0x70, 0x48, 0x50, 0xFD, 0xED, 0xB9, 0xDA,

0x5E, 0x15, 0x46, 0x57, 0xA7, 0x8D, 0x9D, 0x84,

0x90, 0xD8, 0xAB, 0x00, 0x8C, 0xBC, 0xD3, 0x0A,

0xF7, 0xE4, 0x58, 0x05, 0xB8, 0xB3, 0x45, 0x06,

0xD0, 0x2C, 0x1E, 0x8F, 0xCA, 0x3F, 0x0F, 0x02,

0xC1, 0xAF, 0xBD, 0x03, 0x01, 0x13, 0x8A, 0x6B,

0x3A, 0x91, 0x11, 0x41, 0x4F, 0x67, 0xDC, 0xEA,

0x97, 0xF2, 0xCF, 0xCE, 0xF0, 0xB4, 0xE6, 0x73,

0x96, 0xAC, 0x74, 0x22, 0xE7, 0xAD, 0x35, 0x85,

0xE2, 0xF9, 0x37, 0xE8, 0x1C, 0x75, 0xDF, 0x6E,

0x47, 0xF1, 0x1A, 0x71, 0x1D, 0x29, 0xC5, 0x89,

0x6F, 0xB7, 0x62, 0x0E, 0xAA, 0x18, 0xBE, 0x1B,

0xFC, 0x56, 0x3E, 0x4B, 0xC6, 0xD2, 0x79, 0x20,

0x9A, 0xDB, 0xC0, 0xFE, 0x78, 0xCD, 0x5A, 0xF4,

0x1F, 0xDD, 0xA8, 0x33, 0x88, 0x07, 0xC7, 0x31,

0xB1, 0x12, 0x10, 0x59, 0x27, 0x80, 0xEC, 0x5F,

0x60, 0x51, 0x7F, 0xA9, 0x19, 0xB5, 0x4A, 0x0D,

0x2D, 0xE5, 0x7A, 0x9F, 0x93, 0xC9, 0x9C, 0xEF,

0xA0, 0xE0, 0x3B, 0x4D, 0xAE, 0x2A, 0xF5, 0xB0,

0xC8, 0xEB, 0xBB, 0x3C, 0x83, 0x53, 0x99, 0x61,

0x17, 0x2B, 0x04, 0x7E, 0xBA, 0x77, 0xD6, 0x26,

0xE1, 0x69, 0x14, 0x63, 0x55, 0x21, 0x0C, 0x7D

};

 

//reverse table

#define RT \

\

V(51,F4,A7,50), V(7E,41,65,53), V(1A,17,A4,C3), V(3A,27,5E,96), \

V(3B,AB,6B,CB), V(1F,9D,45,F1), V(AC,FA,58,AB), V(4B,E3,03,93), \

V(20,30,FA,55), V(AD,76,6D,F6), V(88,CC,76,91), V(F5,02,4C,25), \

V(4F,E5,D7,FC), V(C5,2A,CB,D7), V(26,35,44,80), V(B5,62,A3,8F), \

V(DE,B1,5A,49), V(25,BA,1B,67), V(45,EA,0E,98), V(5D,FE,C0,E1), \

V(C3,2F,75,02), V(81,4C,F0,12), V(8D,46,97,A3), V(6B,D3,F9,C6), \

V(03,8F,5F,E7), V(15,92,9C,95), V(BF,6D,7A,EB), V(95,52,59,DA), \

V(D4,BE,83,2D), V(58,74,21,D3), V(49,E0,69,29), V(8E,C9,C8,44), \

V(75,C2,89,6A), V(F4,8E,79,78), V(99,58,3E,6B), V(27,B9,71,DD), \

V(BE,E1,4F,B6), V(F0,88,AD,17), V(C9,20,AC,66), V(7D,CE,3A,B4), \

V(63,DF,4A,18), V(E5,1A,31,82), V(97,51,33,60), V(62,53,7F,45), \

V(B1,64,77,E0), V(BB,6B,AE,84), V(FE,81,A0,1C), V(F9,08,2B,94), \

V(70,48,68,58), V(8F,45,FD,19), V(94,DE,6C,87), V(52,7B,F8,B7), \

V(AB,73,D3,23), V(72,4B,02,E2), V(E3,1F,8F,57), V(66,55,AB,2A), \

V(B2,EB,28,07), V(2F,B5,C2,03), V(86,C5,7B,9A), V(D3,37,08,A5), \

V(30,28,87,F2), V(23,BF,A5,B2), V(02,03,6A,BA), V(ED,16,82,5C), \

V(8A,CF,1C,2B), V(A7,79,B4,92), V(F3,07,F2,F0), V(4E,69,E2,A1), \

V(65,DA,F4,CD), V(06,05,BE,D5), V(D1,34,62,1F), V(C4,A6,FE,8A), \

V(34,2E,53,9D), V(A2,F3,55,A0), V(05,8A,E1,32), V(A4,F6,EB,75), \

V(0B,83,EC,39), V(40,60,EF,AA), V(5E,71,9F,06), V(BD,6E,10,51), \

V(3E,21,8A,F9), V(96,DD,06,3D), V(DD,3E,05,AE), V(4D,E6,BD,46), \

V(91,54,8D,B5), V(71,C4,5D,05), V(04,06,D4,6F), V(60,50,15,FF), \

V(19,98,FB,24), V(D6,BD,E9,97), V(89,40,43,CC), V(67,D9,9E,77), \

V(B0,E8,42,BD), V(07,89,8B,88), V(E7,19,5B,38), V(79,C8,EE,DB), \

V(A1,7C,0A,47), V(7C,42,0F,E9), V(F8,84,1E,C9), V(00,00,00,00), \

V(09,80,86,83), V(32,2B,ED,48), V(1E,11,70,AC), V(6C,5A,72,4E), \

V(FD,0E,FF,FB), V(0F,85,38,56), V(3D,AE,D5,1E), V(36,2D,39,27), \

V(0A,0F,D9,64), V(68,5C,A6,21), V(9B,5B,54,D1), V(24,36,2E,3A), \

V(0C,0A,67,B1), V(93,57,E7,0F), V(B4,EE,96,D2), V(1B,9B,91,9E), \

V(80,C0,C5,4F), V(61,DC,20,A2), V(5A,77,4B,69), V(1C,12,1A,16), \

V(E2,93,BA,0A), V(C0,A0,2A,E5), V(3C,22,E0,43), V(12,1B,17,1D), \

V(0E,09,0D,0B), V(F2,8B,C7,AD), V(2D,B6,A8,B9), V(14,1E,A9,C8), \

V(57,F1,19,85), V(AF,75,07,4C), V(EE,99,DD,BB), V(A3,7F,60,FD), \

V(F7,01,26,9F), V(5C,72,F5,BC), V(44,66,3B,C5), V(5B,FB,7E,34), \

V(8B,43,29,76), V(CB,23,C6,DC), V(B6,ED,FC,68), V(B8,E4,F1,63), \

V(D7,31,DC,CA), V(42,63,85,10), V(13,97,22,40), V(84,C6,11,20), \

V(85,4A,24,7D), V(D2,BB,3D,F8), V(AE,F9,32,11), V(C7,29,A1,6D), \

V(1D,9E,2F,4B), V(DC,B2,30,F3), V(0D,86,52,EC), V(77,C1,E3,D0), \

V(2B,B3,16,6C), V(A9,70,B9,99), V(11,94,48,FA), V(47,E9,64,22), \

V(A8,FC,8C,C4), V(A0,F0,3F,1A), V(56,7D,2C,D8), V(22,33,90,EF), \

V(87,49,4E,C7), V(D9,38,D1,C1), V(8C,CA,A2,FE), V(98,D4,0B,36), \

V(A6,F5,81,CF), V(A5,7A,DE,28), V(DA,B7,8E,26), V(3F,AD,BF,A4), \

V(2C,3A,9D,E4), V(50,78,92,0D), V(6A,5F,CC,9B), V(54,7E,46,62), \

V(F6,8D,13,C2), V(90,D8,B8,E8), V(2E,39,F7,5E), V(82,C3,AF,F5), \

V(9F,5D,80,BE), V(69,D0,93,7C), V(6F,D5,2D,A9), V(CF,25,12,B3), \

V(C8,AC,99,3B), V(10,18,7D,A7), V(E8,9C,63,6E), V(DB,3B,BB,7B), \

V(CD,26,78,09), V(6E,59,18,F4), V(EC,9A,B7,01), V(83,4F,9A,A8), \

V(E6,95,6E,65), V(AA,FF,E6,7E), V(21,BC,CF,08), V(EF,15,E8,E6), \

V(BA,E7,9B,D9), V(4A,6F,36,CE), V(EA,9F,09,D4), V(29,B0,7C,D6), \

V(31,A4,B2,AF), V(2A,3F,23,31), V(C6,A5,94,30), V(35,A2,66,C0), \

V(74,4E,BC,37), V(FC,82,CA,A6), V(E0,90,D0,B0), V(33,A7,D8,15), \

V(F1,04,98,4A), V(41,EC,DA,F7), V(7F,CD,50,0E), V(17,91,F6,2F), \

V(76,4D,D6,8D), V(43,EF,B0,4D), V(CC,AA,4D,54), V(E4,96,04,DF), \

V(9E,D1,B5,E3), V(4C,6A,88,1B), V(C1,2C,1F,B8), V(46,65,51,7F), \

V(9D,5E,EA,04), V(01,8C,35,5D), V(FA,87,74,73), V(FB,0B,41,2E), \

V(B3,67,1D,5A), V(92,DB,D2,52), V(E9,10,56,33), V(6D,D6,47,13), \

V(9A,D7,61,8C), V(37,A1,0C,7A), V(59,F8,14,8E), V(EB,13,3C,89), \

V(CE,A9,27,EE), V(B7,61,C9,35), V(E1,1C,E5,ED), V(7A,47,B1,3C), \

V(9C,D2,DF,59), V(55,F2,73,3F), V(18,14,CE,79), V(73,C7,37,BF), \

V(53,F7,CD,EA), V(5F,FD,AA,5B), V(DF,3D,6F,14), V(78,44,DB,86), \

V(CA,AF,F3,81), V(B9,68,C4,3E), V(38,24,34,2C), V(C2,A3,40,5F), \

V(16,1D,C3,72), V(BC,E2,25,0C), V(28,3C,49,8B), V(FF,0D,95,41), \

V(39,A8,01,71), V(08,0C,B3,DE), V(D8,B4,E4,9C), V(64,56,C1,90), \

V(7B,CB,84,61), V(D5,32,B6,70), V(48,6C,5C,74), V(D0,B8,57,42)

 

#define V(a,b,c,d) 0x##a##b##c##d

static unsigned long RT0[256] = { RT };

#undef V

 

#define V(a,b,c,d) 0x##d##a##b##c

static unsigned long RT1[256] = { RT };

#undef V

 

#define V(a,b,c,d) 0x##c##d##a##b

static unsigned long RT2[256] = { RT };

#undef V

 

#define V(a,b,c,d) 0x##b##c##d##a

static unsigned long RT3[256] = { RT };

#undef V

 

//round constants

static unsigned long RCON[10] =

{

0x01000000, 0x02000000, 0x04000000, 0x08000000,

0x10000000, 0x20000000, 0x40000000, 0x80000000,

0x1B000000, 0x36000000

};

 

//key scheduling routine

int AAES_SetKey(void* r_pvAMPSContext, void* r_pvAMPSAESContext, unsigned char* r_puchKey, int r_nBits)

{

t_AMPSAESContext* poAMPSAESContext = r_pvAMPSAESContext;

int i;

unsigned long* RK;

 

switch( r_nBits )

{

case 128: poAMPSAESContext->nNoOfRounds = 10; break;

case 192: poAMPSAESContext->nNoOfRounds = 12; break;

case 256: poAMPSAESContext->nNoOfRounds = 14; break;

default : return( 1 );

}

 

RK = poAMPSAESContext->ulEncRoundKeys;

 

for( i = 0; i < (r_nBits >> 5); i++ )

{

GET_UINT32( RK[i], r_puchKey, i * 4 );

}

 

//setup encryption round keys

switch( r_nBits )

{

case 128:

 

for( i = 0; i < 10; i++, RK += 4 )

{

RK[4]  = RK[0] ^ RCON[i] ^

( FSb[ (unsigned char) ( RK[3] >> 16 ) ] << 24 ) ^

( FSb[ (unsigned char) ( RK[3] >>  8 ) ] << 16 ) ^

( FSb[ (unsigned char) ( RK[3]       ) ] <<  8 ) ^

( FSb[ (unsigned char) ( RK[3] >> 24 ) ]       );

 

RK[5]  = RK[1] ^ RK[4];

RK[6]  = RK[2] ^ RK[5];

RK[7]  = RK[3] ^ RK[6];

}

break;

 

case 192:

 

for( i = 0; i < 8; i++, RK += 6 )

{

RK[6]  = RK[0] ^ RCON[i] ^

( FSb[ (unsigned char) ( RK[5] >> 16 ) ] << 24 ) ^

( FSb[ (unsigned char) ( RK[5] >>  8 ) ] << 16 ) ^

( FSb[ (unsigned char) ( RK[5]       ) ] <<  8 ) ^

( FSb[ (unsigned char) ( RK[5] >> 24 ) ]       );

 

RK[7]  = RK[1] ^ RK[6];

RK[8]  = RK[2] ^ RK[7];

RK[9]  = RK[3] ^ RK[8];

RK[10] = RK[4] ^ RK[9];

RK[11] = RK[5] ^ RK[10];

}

break;

 

case 256:

 

for( i = 0; i < 7; i++, RK += 8 )

{

RK[8]  = RK[0] ^ RCON[i] ^

( FSb[ (unsigned char) ( RK[7] >> 16 ) ] << 24 ) ^

( FSb[ (unsigned char) ( RK[7] >>  8 ) ] << 16 ) ^

( FSb[ (unsigned char) ( RK[7]       ) ] <<  8 ) ^

( FSb[ (unsigned char) ( RK[7] >> 24 ) ]       );

 

RK[9]  = RK[1] ^ RK[8];

RK[10] = RK[2] ^ RK[9];

RK[11] = RK[3] ^ RK[10];

 

RK[12] = RK[4] ^

( FSb[ (unsigned char) ( RK[11] >> 24 ) ] << 24 ) ^

( FSb[ (unsigned char) ( RK[11] >> 16 ) ] << 16 ) ^

( FSb[ (unsigned char) ( RK[11] >>  8 ) ] <<  8 ) ^

( FSb[ (unsigned char) ( RK[11]       ) ]       );

 

RK[13] = RK[5] ^ RK[12];

RK[14] = RK[6] ^ RK[13];

RK[15] = RK[7] ^ RK[14];

}

break;

}

 

//setup decryption round keys

for( i = 0; i <= poAMPSAESContext->nNoOfRounds; i++ )

{

poAMPSAESContext->ulDecRoundKeys[i * 4    ] = poAMPSAESContext->ulEncRoundKeys[( poAMPSAESContext->nNoOfRounds - i ) * 4    ];

poAMPSAESContext->ulDecRoundKeys[i * 4 + 1] = poAMPSAESContext->ulEncRoundKeys[( poAMPSAESContext->nNoOfRounds - i ) * 4 + 1];

poAMPSAESContext->ulDecRoundKeys[i * 4 + 2] = poAMPSAESContext->ulEncRoundKeys[( poAMPSAESContext->nNoOfRounds - i ) * 4 + 2];

poAMPSAESContext->ulDecRoundKeys[i * 4 + 3] = poAMPSAESContext->ulEncRoundKeys[( poAMPSAESContext->nNoOfRounds - i ) * 4 + 3];

}

 

for( i = 1, RK = poAMPSAESContext->ulDecRoundKeys + 4; i < poAMPSAESContext->nNoOfRounds; i++, RK += 4 )

{

RK[0] = RT0[ FSb[ (unsigned char) ( RK[0] >> 24 ) ] ] ^

RT1[ FSb[ (unsigned char) ( RK[0] >> 16 ) ] ] ^

RT2[ FSb[ (unsigned char) ( RK[0] >>  8 ) ] ] ^

RT3[ FSb[ (unsigned char) ( RK[0]       ) ] ];

 

RK[1] = RT0[ FSb[ (unsigned char) ( RK[1] >> 24 ) ] ] ^

RT1[ FSb[ (unsigned char) ( RK[1] >> 16 ) ] ] ^

RT2[ FSb[ (unsigned char) ( RK[1] >>  8 ) ] ] ^

RT3[ FSb[ (unsigned char) ( RK[1]       ) ] ];

 

RK[2] = RT0[ FSb[ (unsigned char) ( RK[2] >> 24 ) ] ] ^

RT1[ FSb[ (unsigned char) ( RK[2] >> 16 ) ] ] ^

RT2[ FSb[ (unsigned char) ( RK[2] >>  8 ) ] ] ^

RT3[ FSb[ (unsigned char) ( RK[2]       ) ] ];

 

RK[3] = RT0[ FSb[ (unsigned char) ( RK[3] >> 24 ) ] ] ^

RT1[ FSb[ (unsigned char) ( RK[3] >> 16 ) ] ] ^

RT2[ FSb[ (unsigned char) ( RK[3] >>  8 ) ] ] ^

RT3[ FSb[ (unsigned char) ( RK[3]       ) ] ];

}

 

return( 0 );

}

 

//128-bit block encryption routine

void AAES_Encrypt(void* r_pvAMPSContext, void* r_pvAMPSAESContext, unsigned char* r_puchInputBuff, unsigned int r_unInputBuffLength, unsigned char* r_puchOutputBuff)

{

t_AMPSAESContext* poAMPSAESContext = r_pvAMPSAESContext;

unsigned long *RK, X0, X1, X2, X3, Y0, Y1, Y2, Y3;

unsigned char* puchInputBuff = NULL;

unsigned char* puchOutputBuff = NULL;

int nLoopCount = r_unInputBuffLength/16;

int nBuffOffSet = 0;

 

for(; nLoopCount >= 0; nLoopCount--, nBuffOffSet+=16)

{

X0 = 0;

X1 = 0;

X2 = 0;

X3 = 0;

Y0 = 0;

Y1 = 0;

Y2 = 0;

Y3 = 0;

 

puchInputBuff = r_puchInputBuff + nBuffOffSet;

puchOutputBuff = r_puchOutputBuff + nBuffOffSet;

 

RK = poAMPSAESContext->ulEncRoundKeys;

 

GET_UINT32( X0, puchInputBuff,  0 ); X0 ^= RK[0];

GET_UINT32( X1, puchInputBuff,  4 ); X1 ^= RK[1];

GET_UINT32( X2, puchInputBuff,  8 ); X2 ^= RK[2];

GET_UINT32( X3, puchInputBuff, 12 ); X3 ^= RK[3];

 

#define FROUND(X0,X1,X2,X3,Y0,Y1,Y2,Y3)         \

{                                               \

RK += 4;                                    \

\

X0 = RK[0] ^ FT0[ (unsigned char) ( Y0 >> 24 ) ] ^  \

FT1[ (unsigned char) ( Y1 >> 16 ) ] ^  \

FT2[ (unsigned char) ( Y2 >>  8 ) ] ^  \

FT3[ (unsigned char) ( Y3       ) ];   \

\

X1 = RK[1] ^ FT0[ (unsigned char) ( Y1 >> 24 ) ] ^  \

FT1[ (unsigned char) ( Y2 >> 16 ) ] ^  \

FT2[ (unsigned char) ( Y3 >>  8 ) ] ^  \

FT3[ (unsigned char) ( Y0       ) ];   \

\

X2 = RK[2] ^ FT0[ (unsigned char) ( Y2 >> 24 ) ] ^  \

FT1[ (unsigned char) ( Y3 >> 16 ) ] ^  \

FT2[ (unsigned char) ( Y0 >>  8 ) ] ^  \

FT3[ (unsigned char) ( Y1       ) ];   \

\

X3 = RK[3] ^ FT0[ (unsigned char) ( Y3 >> 24 ) ] ^  \

FT1[ (unsigned char) ( Y0 >> 16 ) ] ^  \

FT2[ (unsigned char) ( Y1 >>  8 ) ] ^  \

FT3[ (unsigned char) ( Y2       ) ];   \

}

 

FROUND( Y0, Y1, Y2, Y3, X0, X1, X2, X3 );           //round 1

FROUND( X0, X1, X2, X3, Y0, Y1, Y2, Y3 );           //round 2

FROUND( Y0, Y1, Y2, Y3, X0, X1, X2, X3 );           //round 3

FROUND( X0, X1, X2, X3, Y0, Y1, Y2, Y3 );           //round 4

FROUND( Y0, Y1, Y2, Y3, X0, X1, X2, X3 );           //round 5

FROUND( X0, X1, X2, X3, Y0, Y1, Y2, Y3 );           //round 6

FROUND( Y0, Y1, Y2, Y3, X0, X1, X2, X3 );           //round 7

FROUND( X0, X1, X2, X3, Y0, Y1, Y2, Y3 );           //round 8

FROUND( Y0, Y1, Y2, Y3, X0, X1, X2, X3 );           //round 9

 

if( poAMPSAESContext->nNoOfRounds > 10 )

{

FROUND( X0, X1, X2, X3, Y0, Y1, Y2, Y3 );       //round 10

FROUND( Y0, Y1, Y2, Y3, X0, X1, X2, X3 );       //round 11

}

 

if( poAMPSAESContext->nNoOfRounds > 12 )

{

FROUND( X0, X1, X2, X3, Y0, Y1, Y2, Y3 );       //round 12

FROUND( Y0, Y1, Y2, Y3, X0, X1, X2, X3 );       //round 13

}

 

//last round

RK += 4;

 

X0 = RK[0] ^ ( FSb[ (unsigned char) ( Y0 >> 24 ) ] << 24 ) ^

( FSb[ (unsigned char) ( Y1 >> 16 ) ] << 16 ) ^

( FSb[ (unsigned char) ( Y2 >>  8 ) ] <<  8 ) ^

( FSb[ (unsigned char) ( Y3       ) ]       );

 

X1 = RK[1] ^ ( FSb[ (unsigned char) ( Y1 >> 24 ) ] << 24 ) ^

( FSb[ (unsigned char) ( Y2 >> 16 ) ] << 16 ) ^

( FSb[ (unsigned char) ( Y3 >>  8 ) ] <<  8 ) ^

( FSb[ (unsigned char) ( Y0       ) ]       );

 

X2 = RK[2] ^ ( FSb[ (unsigned char) ( Y2 >> 24 ) ] << 24 ) ^

( FSb[ (unsigned char) ( Y3 >> 16 ) ] << 16 ) ^

( FSb[ (unsigned char) ( Y0 >>  8 ) ] <<  8 ) ^

( FSb[ (unsigned char) ( Y1       ) ]       );

 

X3 = RK[3] ^ ( FSb[ (unsigned char) ( Y3 >> 24 ) ] << 24 ) ^

( FSb[ (unsigned char) ( Y0 >> 16 ) ] << 16 ) ^

( FSb[ (unsigned char) ( Y1 >>  8 ) ] <<  8 ) ^

( FSb[ (unsigned char) ( Y2       ) ]       );

 

PUT_UINT32( X0, puchOutputBuff,  0 );

PUT_UINT32( X1, puchOutputBuff,  4 );

PUT_UINT32( X2, puchOutputBuff,  8 );

PUT_UINT32( X3, puchOutputBuff, 12 );

 

}

}

 

// 128-bit block decryption routine

void AAES_Decrypt(void* r_pvAMPSContext, void* r_pvAMPSAESContext, unsigned char* r_puchInputBuff, unsigned int r_unInputBuffLength, unsigned char* r_puchOutputBuff)

{

t_AMPSAESContext* poAMPSAESContext = r_pvAMPSAESContext;

unsigned long *RK, X0, X1, X2, X3, Y0, Y1, Y2, Y3;

 

unsigned char* puchInputBuff = NULL;

unsigned char* puchOutputBuff = NULL;

int nLoopCount = r_unInputBuffLength/16;

int nBuffOffSet = 0;

 

for(; nLoopCount >= 0; nLoopCount--, nBuffOffSet+=16)

{

X0 = 0;

X1 = 0;

X2 = 0;

X3 = 0;

Y0 = 0;

Y1 = 0;

Y2 = 0;

Y3 = 0;

 

puchInputBuff = r_puchInputBuff + nBuffOffSet;

puchOutputBuff = r_puchOutputBuff + nBuffOffSet;

 

RK = poAMPSAESContext->ulDecRoundKeys;

 

GET_UINT32( X0, puchInputBuff,  0 ); X0 ^= RK[0];

GET_UINT32( X1, puchInputBuff,  4 ); X1 ^= RK[1];

GET_UINT32( X2, puchInputBuff,  8 ); X2 ^= RK[2];

GET_UINT32( X3, puchInputBuff, 12 ); X3 ^= RK[3];

 

#define RROUND(X0,X1,X2,X3,Y0,Y1,Y2,Y3)         \

{                                               \

RK += 4;                                    \

\

X0 = RK[0] ^ RT0[ (unsigned char) ( Y0 >> 24 ) ] ^  \

RT1[ (unsigned char) ( Y3 >> 16 ) ] ^  \

RT2[ (unsigned char) ( Y2 >>  8 ) ] ^  \

RT3[ (unsigned char) ( Y1       ) ];   \

\

X1 = RK[1] ^ RT0[ (unsigned char) ( Y1 >> 24 ) ] ^  \

RT1[ (unsigned char) ( Y0 >> 16 ) ] ^  \

RT2[ (unsigned char) ( Y3 >>  8 ) ] ^  \

RT3[ (unsigned char) ( Y2       ) ];   \

\

X2 = RK[2] ^ RT0[ (unsigned char) ( Y2 >> 24 ) ] ^  \

RT1[ (unsigned char) ( Y1 >> 16 ) ] ^  \

RT2[ (unsigned char) ( Y0 >>  8 ) ] ^  \

RT3[ (unsigned char) ( Y3       ) ];   \

\

X3 = RK[3] ^ RT0[ (unsigned char) ( Y3 >> 24 ) ] ^  \

RT1[ (unsigned char) ( Y2 >> 16 ) ] ^  \

RT2[ (unsigned char) ( Y1 >>  8 ) ] ^  \

RT3[ (unsigned char) ( Y0       ) ];   \

}

 

RROUND( Y0, Y1, Y2, Y3, X0, X1, X2, X3 );           //round 1

RROUND( X0, X1, X2, X3, Y0, Y1, Y2, Y3 );           //round 2

RROUND( Y0, Y1, Y2, Y3, X0, X1, X2, X3 );           //round 3

RROUND( X0, X1, X2, X3, Y0, Y1, Y2, Y3 );           //round 4

RROUND( Y0, Y1, Y2, Y3, X0, X1, X2, X3 );           //round 5

RROUND( X0, X1, X2, X3, Y0, Y1, Y2, Y3 );           //round 6

RROUND( Y0, Y1, Y2, Y3, X0, X1, X2, X3 );           //round 7

RROUND( X0, X1, X2, X3, Y0, Y1, Y2, Y3 );           //round 8

RROUND( Y0, Y1, Y2, Y3, X0, X1, X2, X3 );           //round 9

 

if( poAMPSAESContext->nNoOfRounds > 10 )

{

RROUND( X0, X1, X2, X3, Y0, Y1, Y2, Y3 );       //round 10

RROUND( Y0, Y1, Y2, Y3, X0, X1, X2, X3 );       //round 11

}

 

if( poAMPSAESContext->nNoOfRounds > 12 )

{

RROUND( X0, X1, X2, X3, Y0, Y1, Y2, Y3 );       //round 12

RROUND( Y0, Y1, Y2, Y3, X0, X1, X2, X3 );       //round 13

}

 

//last round

 

RK += 4;

 

X0 = RK[0] ^ ( RSb[ (unsigned char) ( Y0 >> 24 ) ] << 24 ) ^

( RSb[ (unsigned char) ( Y3 >> 16 ) ] << 16 ) ^

( RSb[ (unsigned char) ( Y2 >>  8 ) ] <<  8 ) ^

( RSb[ (unsigned char) ( Y1       ) ]       );

 

X1 = RK[1] ^ ( RSb[ (unsigned char) ( Y1 >> 24 ) ] << 24 ) ^

( RSb[ (unsigned char) ( Y0 >> 16 ) ] << 16 ) ^

( RSb[ (unsigned char) ( Y3 >>  8 ) ] <<  8 ) ^

( RSb[ (unsigned char) ( Y2       ) ]       );

 

X2 = RK[2] ^ ( RSb[ (unsigned char) ( Y2 >> 24 ) ] << 24 ) ^

( RSb[ (unsigned char) ( Y1 >> 16 ) ] << 16 ) ^

( RSb[ (unsigned char) ( Y0 >>  8 ) ] <<  8 ) ^

( RSb[ (unsigned char) ( Y3       ) ]       );

 

X3 = RK[3] ^ ( RSb[ (unsigned char) ( Y3 >> 24 ) ] << 24 ) ^

( RSb[ (unsigned char) ( Y2 >> 16 ) ] << 16 ) ^

( RSb[ (unsigned char) ( Y1 >>  8 ) ] <<  8 ) ^

( RSb[ (unsigned char) ( Y0       ) ]       );

 

PUT_UINT32( X0, puchOutputBuff,  0 );

PUT_UINT32( X1, puchOutputBuff,  4 );

PUT_UINT32( X2, puchOutputBuff,  8 );

PUT_UINT32( X3, puchOutputBuff, 12 );

}

}

 

 

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