DES/des3 加密程序

   1 #ifndef POLARSSL_DES_H
#define POLARSSL_DES_H

#define DES_ENCRYPT     1
#define DES_DECRYPT     0

#define POLARSSL_ERR_DES_INVALID_INPUT_LENGTH               -0x0C00

/**
 * rief          DES context structure
 */
typedef struct
{
    int mode;                   /*!<  encrypt/decrypt   */
    unsigned long sk[32];       /*!<  DES subkeys       */
}
des_context;

/**
 * rief          Triple-DES context structure
 */
typedef struct
{
    int mode;                   /*!<  encrypt/decrypt   */
    unsigned long sk[96];       /*!<  3DES subkeys      */
}
des3_context;

#ifdef __cplusplus
extern "C" {
#endif

/**
 * rief          DES key schedule (56-bit, encryption)
 *
 * param ctx      DES context to be initialized
 * param key      8-byte secret key
 */
void des_setkey_enc( des_context *ctx, const unsigned char key[8] );

/**
 * rief          DES key schedule (56-bit, decryption)
 *
 * param ctx      DES context to be initialized
 * param key      8-byte secret key
 */
void des_setkey_dec( des_context *ctx, const unsigned char key[8] );

/**
 * rief          Triple-DES key schedule (112-bit, encryption)
 *
 * param ctx      3DES context to be initialized
 * param key      16-byte secret key
 */
void des3_set2key_enc( des3_context *ctx, const unsigned char key[16] );

/**
 * rief          Triple-DES key schedule (112-bit, decryption)
 *
 * param ctx      3DES context to be initialized
 * param key      16-byte secret key
 */
void des3_set2key_dec( des3_context *ctx, const unsigned char key[16] );

/**
 * rief          Triple-DES key schedule (168-bit, encryption)
 *
 * param ctx      3DES context to be initialized
 * param key      24-byte secret key
 */
void des3_set3key_enc( des3_context *ctx, const unsigned char key[24] );

/**
 * rief          Triple-DES key schedule (168-bit, decryption)
 *
 * param ctx      3DES context to be initialized
 * param key      24-byte secret key
 */
void des3_set3key_dec( des3_context *ctx, const unsigned char key[24] );

/**
 * rief          DES-ECB block encryption/decryption
 *
 * param ctx      DES context
 * param input    64-bit input block
 * param output   64-bit output block
 *
 * 
eturn         0 if successful
 */
int des_crypt_ecb( des_context *ctx,
                    const unsigned char input[8],
                    unsigned char output[8] );

/**
 * rief          DES-CBC buffer encryption/decryption
 *
 * param ctx      DES context
 * param mode     DES_ENCRYPT or DES_DECRYPT
 * param length   length of the input data
 * param iv       initialization vector (updated after use)
 * param input    buffer holding the input data
 * param output   buffer holding the output data
 */
int des_crypt_cbc( des_context *ctx,
                    int mode,
                    int length,
                    unsigned char iv[8],
                    const unsigned char *input,
                    unsigned char *output );

/**
 * rief          3DES-ECB block encryption/decryption
 *
 * param ctx      3DES context
 * param input    64-bit input block
 * param output   64-bit output block
 *
 * 
eturn         0 if successful
 */
int des3_crypt_ecb( des3_context *ctx,
                     const unsigned char input[8],
                     unsigned char output[8] );

/**
 * rief          3DES-CBC buffer encryption/decryption
 *
 * param ctx      3DES context
 * param mode     DES_ENCRYPT or DES_DECRYPT
 * param length   length of the input data
 * param iv       initialization vector (updated after use)
 * param input    buffer holding the input data
 * param output   buffer holding the output data
 *
 * 
eturn         0 if successful, or POLARSSL_ERR_DES_INVALID_INPUT_LENGTH
 */
int des3_crypt_cbc( des3_context *ctx,
                     int mode,
                     int length,
                     unsigned char iv[8],
                     const unsigned char *input,
                     unsigned char *output );

/*
 * rief          Checkup routine
 *
 * 
eturn         0 if successful, or 1 if the test failed
 */
int des_self_test( int verbose );

#ifdef __cplusplus
}
#endif

#endif /* des.h */
#ifndef POLARSSL_CONFIG_H
#define POLARSSL_CONFIG_H

#ifndef _CRT_SECURE_NO_DEPRECATE
#define _CRT_SECURE_NO_DEPRECATE 1
#endif

/*
 * Uncomment if native integers are 8-bit wide.
 *
#define POLARSSL_HAVE_INT8
 */

/*
 * Uncomment if native integers are 16-bit wide.
 *
#define POLARSSL_HAVE_INT16
 */

/*
 * Uncomment if the compiler supports long long.
 *
#define POLARSSL_HAVE_LONGLONG
 */

/*
 * Uncomment to enable the use of assembly code.
 *
 * Requires support for asm() in compiler.
 *
 * Used in:
 *      library/timing.c
 *      library/padlock.c
 *      include/polarssl/bn_mul.h
 *
 */
#define POLARSSL_HAVE_ASM

/*
 * Uncomment if the CPU supports SSE2 (IA-32 specific).
 *
#define POLARSSL_HAVE_SSE2
 */

/*
 * Enable all SSL/TLS debugging messages.
 */
#define POLARSSL_DEBUG_MSG

/*
 * Enable the checkup functions (*_self_test).
 */
#define POLARSSL_SELF_TEST

/*
 * Enable run-time version information functions
 */
#define POLARSSL_VERSION_C

/*
 * Enable the prime-number generation code.
 */
#define POLARSSL_GENPRIME

/*
 * Uncomment this macro to store the AES tables in ROM.
 *
#define POLARSSL_AES_ROM_TABLES
 */

/*
 * Module:  library/aes.c
 * Caller:  library/ssl_tls.c
 *
 * This module enables the following ciphersuites:
 *      SSL_RSA_AES_128_SHA
 *      SSL_RSA_AES_256_SHA
 *      SSL_EDH_RSA_AES_256_SHA
 */
#define POLARSSL_AES_C

/*
 * Module:  library/arc4.c
 * Caller:  library/ssl_tls.c
 *
 * This module enables the following ciphersuites:
 *      SSL_RSA_RC4_128_MD5
 *      SSL_RSA_RC4_128_SHA
 */
#define POLARSSL_ARC4_C

/*
 * Module:  library/base64.c
 * Caller:  library/x509parse.c
 *
 * This module is required for X.509 support.
 */
#define POLARSSL_BASE64_C

/*
 * Module:  library/bignum.c
 * Caller:  library/dhm.c
 *          library/rsa.c
 *          library/ssl_tls.c
 *          library/x509parse.c
 *
 * This module is required for RSA and DHM support.
 */
#define POLARSSL_BIGNUM_C

/*
 * Module:  library/camellia.c
 * Caller:  library/ssl_tls.c
 *
 * This module enabled the following cipher suites:
 *      SSL_RSA_CAMELLIA_128_SHA
 *      SSL_RSA_CAMELLIA_256_SHA
 *      SSL_EDH_RSA_CAMELLIA_256_SHA
 */
#define POLARSSL_CAMELLIA_C

/*
 * Module:  library/certs.c
 * Caller:
 *
 * This module is used for testing (ssl_client/server).
 */
#define POLARSSL_CERTS_C

/*
 * Module:  library/debug.c
 * Caller:  library/ssl_cli.c
 *          library/ssl_srv.c
 *          library/ssl_tls.c
 *
 * This module provides debugging functions.
 */
#define POLARSSL_DEBUG_C

/*
 * Module:  library/des.c
 * Caller:  library/ssl_tls.c
 *
 * This module enables the following ciphersuites:
 *      SSL_RSA_DES_168_SHA
 *      SSL_EDH_RSA_DES_168_SHA
 */
#define POLARSSL_DES_C

/*
 * Module:  library/dhm.c
 * Caller:  library/ssl_cli.c
 *          library/ssl_srv.c
 *
 * This module enables the following ciphersuites:
 *      SSL_EDH_RSA_DES_168_SHA
 *      SSL_EDH_RSA_AES_256_SHA
 *      SSL_EDH_RSA_CAMELLIA_256_SHA
 */
#define POLARSSL_DHM_C

/*
 * Module:  library/havege.c
 * Caller:
 *
 * This module enables the HAVEGE random number generator.
 */
#define POLARSSL_HAVEGE_C

/*
 * Module:  library/md2.c
 * Caller:  library/x509parse.c
 *
 * Uncomment to enable support for (rare) MD2-signed X.509 certs.
 *
#define POLARSSL_MD2_C
 */

/*
 * Module:  library/md4.c
 * Caller:  library/x509parse.c
 *
 * Uncomment to enable support for (rare) MD4-signed X.509 certs.
 *
#define POLARSSL_MD4_C
 */

/*
 * Module:  library/md5.c
 * Caller:  library/ssl_tls.c
 *          library/x509parse.c
 *
 * This module is required for SSL/TLS and X.509.
 */
#define POLARSSL_MD5_C

/*
 * Module:  library/net.c
 * Caller:
 *
 * This module provides TCP/IP networking routines.
 */
#define POLARSSL_NET_C

/*
 * Module:  library/padlock.c
 * Caller:  library/aes.c
 *
 * This modules adds support for the VIA PadLock on x86.
 */
#define POLARSSL_PADLOCK_C

/*
 * Module:  library/rsa.c
 * Caller:  library/ssl_cli.c
 *          library/ssl_srv.c
 *          library/ssl_tls.c
 *          library/x509.c
 *
 * This module is required for SSL/TLS and MD5-signed certificates.
 */
#define POLARSSL_RSA_C

/*
 * Module:  library/sha1.c
 * Caller:  library/ssl_cli.c
 *          library/ssl_srv.c
 *          library/ssl_tls.c
 *          library/x509parse.c
 *
 * This module is required for SSL/TLS and SHA1-signed certificates.
 */
#define POLARSSL_SHA1_C

/*
 * Module:  library/sha2.c
 * Caller:
 *
 * This module adds support for SHA-224 and SHA-256.
 */
#define POLARSSL_SHA2_C

/*
 * Module:  library/sha4.c
 * Caller:
 *
 * This module adds support for SHA-384 and SHA-512.
 */
#define POLARSSL_SHA4_C

/*
 * Module:  library/ssl_cli.c
 * Caller:
 *
 * This module is required for SSL/TLS client support.
 */
#define POLARSSL_SSL_CLI_C

/*
 * Module:  library/ssl_srv.c
 * Caller:
 *
 * This module is required for SSL/TLS server support.
 */
#define POLARSSL_SSL_SRV_C

/*
 * Module:  library/ssl_tls.c
 * Caller:  library/ssl_cli.c
 *          library/ssl_srv.c
 *
 * This module is required for SSL/TLS.
 */
#define POLARSSL_SSL_TLS_C

/*
 * Module:  library/timing.c
 * Caller:  library/havege.c
 *
 * This module is used by the HAVEGE random number generator.
 */
#define POLARSSL_TIMING_C

/*
 * Module:  library/x509parse.c
 * Caller:  library/ssl_cli.c
 *          library/ssl_srv.c
 *          library/ssl_tls.c
 *
 * This module is required for X.509 certificate parsing.
 */
#define POLARSSL_X509_PARSE_C

/*
 * Module:  library/x509_write.c
 * Caller:
 *
 * This module is required for X.509 certificate writing.
 */
#define POLARSSL_X509_WRITE_C

/*
 * Module:  library/xtea.c
 * Caller:
 */
#define POLARSSL_XTEA_C

#endif /* config.h */




#ifndef POLARSSL_TIMING_H
#define POLARSSL_TIMING_H


struct hr_time
{
    unsigned char opaque[32];
};

#ifdef __cplusplus
extern "C" {
#endif

extern int alarmed;
unsigned long hardclock( void );


unsigned long get_timer( struct hr_time *val, int reset );


void set_alarm( int seconds );


void m_sleep( int milliseconds );

#ifdef __cplusplus
}
#endif

#endif 














#define BUFSIZE  32768



#if defined(POLARSSL_TIMING_C)



#if defined(_WIN32)

#include <windows.h>
#include <winbase.h>

struct _hr_time
{
    LARGE_INTEGER start;
};

#else

#include <unistd.h>
#include <sys/types.h>
#include <sys/time.h>
#include <signal.h>
#include <time.h>

struct _hr_time
{
    struct timeval start;
};

#endif

#if defined(POLARSSL_HAVE_ASM) &&                     
    (defined(_MSC_VER) && defined(_M_IX86)) || defined(__WATCOMC__)

unsigned long hardclock( void )
{
    unsigned long tsc;
    __asm   rdtsc
    __asm   mov  [tsc], eax
    return( tsc );
}

#else
#if defined(POLARSSL_HAVE_ASM) && defined(__GNUC__) && defined(__i386__)

unsigned long hardclock( void )
{
    unsigned long tsc;
    asm( "rdtsc" : "=a" (tsc) );
    return( tsc );
}

#else
#if defined(POLARSSL_HAVE_ASM) && defined(__GNUC__) &&             
    (defined(__amd64__) || defined(__x86_64__))

unsigned long hardclock( void )
{
    unsigned long lo, hi;
    asm( "rdtsc" : "=a" (lo), "=d" (hi) ); 
    return( lo | (hi << 32) );
}

#else
#if defined(POLARSSL_HAVE_ASM) && defined(__GNUC__) &&             
    (defined(__powerpc__) || defined(__ppc__))

unsigned long hardclock( void )
{
    unsigned long tbl, tbu0, tbu1;

    do
    {
        asm( "mftbu %0" : "=r" (tbu0) );
        asm( "mftb  %0" : "=r" (tbl ) );
        asm( "mftbu %0" : "=r" (tbu1) );
    }
    while( tbu0 != tbu1 );

    return( tbl );
}

#else
#if defined(POLARSSL_HAVE_ASM) && defined(__GNUC__) && defined(__sparc__)

unsigned long hardclock( void )
{
    unsigned long tick;
    asm( ".byte 0x83, 0x41, 0x00, 0x00" );
    asm( "mov   %%g1, %0" : "=r" (tick) );
    return( tick );
}

#else
#if defined(POLARSSL_HAVE_ASM) && defined(__GNUC__) && defined(__alpha__)

unsigned long hardclock( void )
{
    unsigned long cc;
    asm( "rpcc %0" : "=r" (cc) );
    return( cc & 0xFFFFFFFF );
}

#else
#if defined(POLARSSL_HAVE_ASM) && defined(__GNUC__) && defined(__ia64__)

unsigned long hardclock( void )
{
    unsigned long itc;
    asm( "mov %0 = ar.itc" : "=r" (itc) );
    return( itc );
}

#else

static int hardclock_init = 0;
static struct timeval tv_init;

unsigned long hardclock( void )
{
    struct timeval tv_cur;

    if( hardclock_init == 0 )
    {
        gettimeofday( &tv_init, NULL );
        hardclock_init = 1;
    }

    gettimeofday( &tv_cur, NULL );
    return( ( tv_cur.tv_sec  - tv_init.tv_sec  ) * 1000000
          + ( tv_cur.tv_usec - tv_init.tv_usec ) );
}

#endif /* generic */
#endif /* IA-64   */
#endif /* Alpha   */
#endif /* SPARC8  */
#endif /* PowerPC */
#endif /* AMD64   */
#endif /* i586+   */

int alarmed = 0;

#if defined(_WIN32)

unsigned long get_timer( struct hr_time *val, int reset )
{
    unsigned long delta;
    LARGE_INTEGER offset, hfreq;
    struct _hr_time *t = (struct _hr_time *) val;

    QueryPerformanceCounter(  &offset );
    QueryPerformanceFrequency( &hfreq );

    delta = (unsigned long)( ( 1000 *
        ( offset.QuadPart - t->start.QuadPart ) ) /
           hfreq.QuadPart );

    if( reset )
        QueryPerformanceCounter( &t->start );

    return( delta );
}

DWORD WINAPI TimerProc( LPVOID uElapse )
{   
    Sleep( (DWORD) uElapse );
    alarmed = 1; 
    return( TRUE );
}

void set_alarm( int seconds )
{   
    DWORD ThreadId;

    alarmed = 0; 
    CloseHandle( CreateThread( NULL, 0, TimerProc,
        (LPVOID) ( seconds * 1000 ), 0, &ThreadId ) );
}

void m_sleep( int milliseconds )
{
    Sleep( milliseconds );
}

#else

unsigned long get_timer( struct hr_time *val, int reset )
{
    unsigned long delta;
    struct timeval offset;
    struct _hr_time *t = (struct _hr_time *) val;

    gettimeofday( &offset, NULL );

    delta = ( offset.tv_sec  - t->start.tv_sec  ) * 1000
          + ( offset.tv_usec - t->start.tv_usec ) / 1000;

    if( reset )
    {
        t->start.tv_sec  = offset.tv_sec;
        t->start.tv_usec = offset.tv_usec;
    }

    return( delta );
}

static void sighandler( int signum )
{   
    alarmed = 1;
    signal( signum, sighandler );
}

void set_alarm( int seconds )
{
    alarmed = 0;
    signal( SIGALRM, sighandler );
    alarm( seconds );
}

void m_sleep( int milliseconds )
{
    struct timeval tv;

    tv.tv_sec  = milliseconds / 1000;
    tv.tv_usec = milliseconds * 1000;

    select( 0, NULL, NULL, NULL, &tv );
}

#endif

#endif





#if defined(POLARSSL_DES_C)



#include <string.h>

/*
 * 32-bit integer manipulation macros (big endian)
 */
#ifndef GET_ULONG_BE
#define GET_ULONG_BE(n,b,i)                             
{                                                       
    (n) = ( (unsigned long) (b)[(i)    ] << 24 )        
        | ( (unsigned long) (b)[(i) + 1] << 16 )        
        | ( (unsigned long) (b)[(i) + 2] <<  8 )        
        | ( (unsigned long) (b)[(i) + 3]       );       
}
#endif

#ifndef PUT_ULONG_BE
#define PUT_ULONG_BE(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)       );       
}
#endif

/*
 * Expanded DES S-boxes
 */
static const unsigned long SB1[64] =
{
    0x01010400, 0x00000000, 0x00010000, 0x01010404,
    0x01010004, 0x00010404, 0x00000004, 0x00010000,
    0x00000400, 0x01010400, 0x01010404, 0x00000400,
    0x01000404, 0x01010004, 0x01000000, 0x00000004,
    0x00000404, 0x01000400, 0x01000400, 0x00010400,
    0x00010400, 0x01010000, 0x01010000, 0x01000404,
    0x00010004, 0x01000004, 0x01000004, 0x00010004,
    0x00000000, 0x00000404, 0x00010404, 0x01000000,
    0x00010000, 0x01010404, 0x00000004, 0x01010000,
    0x01010400, 0x01000000, 0x01000000, 0x00000400,
    0x01010004, 0x00010000, 0x00010400, 0x01000004,
    0x00000400, 0x00000004, 0x01000404, 0x00010404,
    0x01010404, 0x00010004, 0x01010000, 0x01000404,
    0x01000004, 0x00000404, 0x00010404, 0x01010400,
    0x00000404, 0x01000400, 0x01000400, 0x00000000,
    0x00010004, 0x00010400, 0x00000000, 0x01010004
};

static const unsigned long SB2[64] =
{
    0x80108020, 0x80008000, 0x00008000, 0x00108020,
    0x00100000, 0x00000020, 0x80100020, 0x80008020,
    0x80000020, 0x80108020, 0x80108000, 0x80000000,
    0x80008000, 0x00100000, 0x00000020, 0x80100020,
    0x00108000, 0x00100020, 0x80008020, 0x00000000,
    0x80000000, 0x00008000, 0x00108020, 0x80100000,
    0x00100020, 0x80000020, 0x00000000, 0x00108000,
    0x00008020, 0x80108000, 0x80100000, 0x00008020,
    0x00000000, 0x00108020, 0x80100020, 0x00100000,
    0x80008020, 0x80100000, 0x80108000, 0x00008000,
    0x80100000, 0x80008000, 0x00000020, 0x80108020,
    0x00108020, 0x00000020, 0x00008000, 0x80000000,
    0x00008020, 0x80108000, 0x00100000, 0x80000020,
    0x00100020, 0x80008020, 0x80000020, 0x00100020,
    0x00108000, 0x00000000, 0x80008000, 0x00008020,
    0x80000000, 0x80100020, 0x80108020, 0x00108000
};

static const unsigned long SB3[64] =
{
    0x00000208, 0x08020200, 0x00000000, 0x08020008,
    0x08000200, 0x00000000, 0x00020208, 0x08000200,
    0x00020008, 0x08000008, 0x08000008, 0x00020000,
    0x08020208, 0x00020008, 0x08020000, 0x00000208,
    0x08000000, 0x00000008, 0x08020200, 0x00000200,
    0x00020200, 0x08020000, 0x08020008, 0x00020208,
    0x08000208, 0x00020200, 0x00020000, 0x08000208,
    0x00000008, 0x08020208, 0x00000200, 0x08000000,
    0x08020200, 0x08000000, 0x00020008, 0x00000208,
    0x00020000, 0x08020200, 0x08000200, 0x00000000,
    0x00000200, 0x00020008, 0x08020208, 0x08000200,
    0x08000008, 0x00000200, 0x00000000, 0x08020008,
    0x08000208, 0x00020000, 0x08000000, 0x08020208,
    0x00000008, 0x00020208, 0x00020200, 0x08000008,
    0x08020000, 0x08000208, 0x00000208, 0x08020000,
    0x00020208, 0x00000008, 0x08020008, 0x00020200
};

static const unsigned long SB4[64] =
{
    0x00802001, 0x00002081, 0x00002081, 0x00000080,
    0x00802080, 0x00800081, 0x00800001, 0x00002001,
    0x00000000, 0x00802000, 0x00802000, 0x00802081,
    0x00000081, 0x00000000, 0x00800080, 0x00800001,
    0x00000001, 0x00002000, 0x00800000, 0x00802001,
    0x00000080, 0x00800000, 0x00002001, 0x00002080,
    0x00800081, 0x00000001, 0x00002080, 0x00800080,
    0x00002000, 0x00802080, 0x00802081, 0x00000081,
    0x00800080, 0x00800001, 0x00802000, 0x00802081,
    0x00000081, 0x00000000, 0x00000000, 0x00802000,
    0x00002080, 0x00800080, 0x00800081, 0x00000001,
    0x00802001, 0x00002081, 0x00002081, 0x00000080,
    0x00802081, 0x00000081, 0x00000001, 0x00002000,
    0x00800001, 0x00002001, 0x00802080, 0x00800081,
    0x00002001, 0x00002080, 0x00800000, 0x00802001,
    0x00000080, 0x00800000, 0x00002000, 0x00802080
};

static const unsigned long SB5[64] =
{
    0x00000100, 0x02080100, 0x02080000, 0x42000100,
    0x00080000, 0x00000100, 0x40000000, 0x02080000,
    0x40080100, 0x00080000, 0x02000100, 0x40080100,
    0x42000100, 0x42080000, 0x00080100, 0x40000000,
    0x02000000, 0x40080000, 0x40080000, 0x00000000,
    0x40000100, 0x42080100, 0x42080100, 0x02000100,
    0x42080000, 0x40000100, 0x00000000, 0x42000000,
    0x02080100, 0x02000000, 0x42000000, 0x00080100,
    0x00080000, 0x42000100, 0x00000100, 0x02000000,
    0x40000000, 0x02080000, 0x42000100, 0x40080100,
    0x02000100, 0x40000000, 0x42080000, 0x02080100,
    0x40080100, 0x00000100, 0x02000000, 0x42080000,
    0x42080100, 0x00080100, 0x42000000, 0x42080100,
    0x02080000, 0x00000000, 0x40080000, 0x42000000,
    0x00080100, 0x02000100, 0x40000100, 0x00080000,
    0x00000000, 0x40080000, 0x02080100, 0x40000100
};

static const unsigned long SB6[64] =
{
    0x20000010, 0x20400000, 0x00004000, 0x20404010,
    0x20400000, 0x00000010, 0x20404010, 0x00400000,
    0x20004000, 0x00404010, 0x00400000, 0x20000010,
    0x00400010, 0x20004000, 0x20000000, 0x00004010,
    0x00000000, 0x00400010, 0x20004010, 0x00004000,
    0x00404000, 0x20004010, 0x00000010, 0x20400010,
    0x20400010, 0x00000000, 0x00404010, 0x20404000,
    0x00004010, 0x00404000, 0x20404000, 0x20000000,
    0x20004000, 0x00000010, 0x20400010, 0x00404000,
    0x20404010, 0x00400000, 0x00004010, 0x20000010,
    0x00400000, 0x20004000, 0x20000000, 0x00004010,
    0x20000010, 0x20404010, 0x00404000, 0x20400000,
    0x00404010, 0x20404000, 0x00000000, 0x20400010,
    0x00000010, 0x00004000, 0x20400000, 0x00404010,
    0x00004000, 0x00400010, 0x20004010, 0x00000000,
    0x20404000, 0x20000000, 0x00400010, 0x20004010
};

static const unsigned long SB7[64] =
{
    0x00200000, 0x04200002, 0x04000802, 0x00000000,
    0x00000800, 0x04000802, 0x00200802, 0x04200800,
    0x04200802, 0x00200000, 0x00000000, 0x04000002,
    0x00000002, 0x04000000, 0x04200002, 0x00000802,
    0x04000800, 0x00200802, 0x00200002, 0x04000800,
    0x04000002, 0x04200000, 0x04200800, 0x00200002,
    0x04200000, 0x00000800, 0x00000802, 0x04200802,
    0x00200800, 0x00000002, 0x04000000, 0x00200800,
    0x04000000, 0x00200800, 0x00200000, 0x04000802,
    0x04000802, 0x04200002, 0x04200002, 0x00000002,
    0x00200002, 0x04000000, 0x04000800, 0x00200000,
    0x04200800, 0x00000802, 0x00200802, 0x04200800,
    0x00000802, 0x04000002, 0x04200802, 0x04200000,
    0x00200800, 0x00000000, 0x00000002, 0x04200802,
    0x00000000, 0x00200802, 0x04200000, 0x00000800,
    0x04000002, 0x04000800, 0x00000800, 0x00200002
};

static const unsigned long SB8[64] =
{
    0x10001040, 0x00001000, 0x00040000, 0x10041040,
    0x10000000, 0x10001040, 0x00000040, 0x10000000,
    0x00040040, 0x10040000, 0x10041040, 0x00041000,
    0x10041000, 0x00041040, 0x00001000, 0x00000040,
    0x10040000, 0x10000040, 0x10001000, 0x00001040,
    0x00041000, 0x00040040, 0x10040040, 0x10041000,
    0x00001040, 0x00000000, 0x00000000, 0x10040040,
    0x10000040, 0x10001000, 0x00041040, 0x00040000,
    0x00041040, 0x00040000, 0x10041000, 0x00001000,
    0x00000040, 0x10040040, 0x00001000, 0x00041040,
    0x10001000, 0x00000040, 0x10000040, 0x10040000,
    0x10040040, 0x10000000, 0x00040000, 0x10001040,
    0x00000000, 0x10041040, 0x00040040, 0x10000040,
    0x10040000, 0x10001000, 0x10001040, 0x00000000,
    0x10041040, 0x00041000, 0x00041000, 0x00001040,
    0x00001040, 0x00040040, 0x10000000, 0x10041000
};

/*
 * PC1: left and right halves bit-swap
 */
static const unsigned long LHs[16] =
{
    0x00000000, 0x00000001, 0x00000100, 0x00000101,
    0x00010000, 0x00010001, 0x00010100, 0x00010101,
    0x01000000, 0x01000001, 0x01000100, 0x01000101,
    0x01010000, 0x01010001, 0x01010100, 0x01010101
};

static const unsigned long RHs[16] =
{
    0x00000000, 0x01000000, 0x00010000, 0x01010000,
    0x00000100, 0x01000100, 0x00010100, 0x01010100,
    0x00000001, 0x01000001, 0x00010001, 0x01010001,
    0x00000101, 0x01000101, 0x00010101, 0x01010101,
};

/*
 * Initial Permutation macro
 */
#define DES_IP(X,Y)                                             
{                                                               
    T = ((X >>  4) ^ Y) & 0x0F0F0F0F; Y ^= T; X ^= (T <<  4);   
    T = ((X >> 16) ^ Y) & 0x0000FFFF; Y ^= T; X ^= (T << 16);   
    T = ((Y >>  2) ^ X) & 0x33333333; X ^= T; Y ^= (T <<  2);   
    T = ((Y >>  8) ^ X) & 0x00FF00FF; X ^= T; Y ^= (T <<  8);   
    Y = ((Y << 1) | (Y >> 31)) & 0xFFFFFFFF;                    
    T = (X ^ Y) & 0xAAAAAAAA; Y ^= T; X ^= T;                   
    X = ((X << 1) | (X >> 31)) & 0xFFFFFFFF;                    
}

/*
 * Final Permutation macro
 */
#define DES_FP(X,Y)                                             
{                                                               
    X = ((X << 31) | (X >> 1)) & 0xFFFFFFFF;                    
    T = (X ^ Y) & 0xAAAAAAAA; X ^= T; Y ^= T;                   
    Y = ((Y << 31) | (Y >> 1)) & 0xFFFFFFFF;                    
    T = ((Y >>  8) ^ X) & 0x00FF00FF; X ^= T; Y ^= (T <<  8);   
    T = ((Y >>  2) ^ X) & 0x33333333; X ^= T; Y ^= (T <<  2);   
    T = ((X >> 16) ^ Y) & 0x0000FFFF; Y ^= T; X ^= (T << 16);   
    T = ((X >>  4) ^ Y) & 0x0F0F0F0F; Y ^= T; X ^= (T <<  4);   
}

/*
 * DES round macro
 */
#define DES_ROUND(X,Y)                          
{                                               
    T = *SK++ ^ X;                              
    Y ^= SB8[ (T      ) & 0x3F ] ^              
         SB6[ (T >>  8) & 0x3F ] ^              
         SB4[ (T >> 16) & 0x3F ] ^              
         SB2[ (T >> 24) & 0x3F ];               
                                                
    T = *SK++ ^ ((X << 28) | (X >> 4));         
    Y ^= SB7[ (T      ) & 0x3F ] ^              
         SB5[ (T >>  8) & 0x3F ] ^              
         SB3[ (T >> 16) & 0x3F ] ^              
         SB1[ (T >> 24) & 0x3F ];               
}

#define SWAP(a,b) { unsigned long t = a; a = b; b = t; t = 0; }

static void des_setkey( unsigned long SK[32], const unsigned char key[8] )
{
    int i;
    unsigned long X, Y, T;

    GET_ULONG_BE( X, key, 0 );
    GET_ULONG_BE( Y, key, 4 );

    /*
     * Permuted Choice 1
     */
    T =  ((Y >>  4) ^ X) & 0x0F0F0F0F;  X ^= T; Y ^= (T <<  4);
    T =  ((Y      ) ^ X) & 0x10101010;  X ^= T; Y ^= (T      );

    X =   (LHs[ (X      ) & 0xF] << 3) | (LHs[ (X >>  8) & 0xF ] << 2)
        | (LHs[ (X >> 16) & 0xF] << 1) | (LHs[ (X >> 24) & 0xF ]     )
        | (LHs[ (X >>  5) & 0xF] << 7) | (LHs[ (X >> 13) & 0xF ] << 6)
        | (LHs[ (X >> 21) & 0xF] << 5) | (LHs[ (X >> 29) & 0xF ] << 4);

    Y =   (RHs[ (Y >>  1) & 0xF] << 3) | (RHs[ (Y >>  9) & 0xF ] << 2)
        | (RHs[ (Y >> 17) & 0xF] << 1) | (RHs[ (Y >> 25) & 0xF ]     )
        | (RHs[ (Y >>  4) & 0xF] << 7) | (RHs[ (Y >> 12) & 0xF ] << 6)
        | (RHs[ (Y >> 20) & 0xF] << 5) | (RHs[ (Y >> 28) & 0xF ] << 4);

    X &= 0x0FFFFFFF;
    Y &= 0x0FFFFFFF;

    /*
     * calculate subkeys
     */
    for( i = 0; i < 16; i++ )
    {
        if( i < 2 || i == 8 || i == 15 )
        {
            X = ((X <<  1) | (X >> 27)) & 0x0FFFFFFF;
            Y = ((Y <<  1) | (Y >> 27)) & 0x0FFFFFFF;
        }
        else
        {
            X = ((X <<  2) | (X >> 26)) & 0x0FFFFFFF;
            Y = ((Y <<  2) | (Y >> 26)) & 0x0FFFFFFF;
        }

        *SK++ =   ((X <<  4) & 0x24000000) | ((X << 28) & 0x10000000)
                | ((X << 14) & 0x08000000) | ((X << 18) & 0x02080000)
                | ((X <<  6) & 0x01000000) | ((X <<  9) & 0x00200000)
                | ((X >>  1) & 0x00100000) | ((X << 10) & 0x00040000)
                | ((X <<  2) & 0x00020000) | ((X >> 10) & 0x00010000)
                | ((Y >> 13) & 0x00002000) | ((Y >>  4) & 0x00001000)
                | ((Y <<  6) & 0x00000800) | ((Y >>  1) & 0x00000400)
                | ((Y >> 14) & 0x00000200) | ((Y      ) & 0x00000100)
                | ((Y >>  5) & 0x00000020) | ((Y >> 10) & 0x00000010)
                | ((Y >>  3) & 0x00000008) | ((Y >> 18) & 0x00000004)
                | ((Y >> 26) & 0x00000002) | ((Y >> 24) & 0x00000001);

        *SK++ =   ((X << 15) & 0x20000000) | ((X << 17) & 0x10000000)
                | ((X << 10) & 0x08000000) | ((X << 22) & 0x04000000)
                | ((X >>  2) & 0x02000000) | ((X <<  1) & 0x01000000)
                | ((X << 16) & 0x00200000) | ((X << 11) & 0x00100000)
                | ((X <<  3) & 0x00080000) | ((X >>  6) & 0x00040000)
                | ((X << 15) & 0x00020000) | ((X >>  4) & 0x00010000)
                | ((Y >>  2) & 0x00002000) | ((Y <<  8) & 0x00001000)
                | ((Y >> 14) & 0x00000808) | ((Y >>  9) & 0x00000400)
                | ((Y      ) & 0x00000200) | ((Y <<  7) & 0x00000100)
                | ((Y >>  7) & 0x00000020) | ((Y >>  3) & 0x00000011)
                | ((Y <<  2) & 0x00000004) | ((Y >> 21) & 0x00000002);
    }
}

/*
 * DES key schedule (56-bit, encryption)
 */
void des_setkey_enc( des_context *ctx, const unsigned char key[8] )
{
    des_setkey( ctx->sk, key );
}

/*
 * DES key schedule (56-bit, decryption)
 */
void des_setkey_dec( des_context *ctx, const unsigned char key[8] )
{
    int i;

    des_setkey( ctx->sk, key );

    for( i = 0; i < 16; i += 2 )
    {
        SWAP( ctx->sk[i    ], ctx->sk[30 - i] );
        SWAP( ctx->sk[i + 1], ctx->sk[31 - i] );
    }
}

static void des3_set2key( unsigned long esk[96],
                          unsigned long dsk[96],
                          const unsigned char key[16] )
{
    int i;

    des_setkey( esk, key );
    des_setkey( dsk + 32, key + 8 );

    for( i = 0; i < 32; i += 2 )
    {
        dsk[i     ] = esk[30 - i];
        dsk[i +  1] = esk[31 - i];

        esk[i + 32] = dsk[62 - i];
        esk[i + 33] = dsk[63 - i];

        esk[i + 64] = esk[i    ];
        esk[i + 65] = esk[i + 1];

        dsk[i + 64] = dsk[i    ];
        dsk[i + 65] = dsk[i + 1];
    }
}

/*
 * Triple-DES key schedule (112-bit, encryption)
 */
void des3_set2key_enc( des3_context *ctx, const unsigned char key[16] )
{
    unsigned long sk[96];

    des3_set2key( ctx->sk, sk, key );
    memset( sk,  0, sizeof( sk ) );
}

/*
 * Triple-DES key schedule (112-bit, decryption)
 */
void des3_set2key_dec( des3_context *ctx, const unsigned char key[16] )
{
    unsigned long sk[96];

    des3_set2key( sk, ctx->sk, key );
    memset( sk,  0, sizeof( sk ) );
}

static void des3_set3key( unsigned long esk[96],
                          unsigned long dsk[96],
                          const unsigned char key[24] )
{
    int i;

    des_setkey( esk, key );
    des_setkey( dsk + 32, key +  8 );
    des_setkey( esk + 64, key + 16 );

    for( i = 0; i < 32; i += 2 )
    {
        dsk[i     ] = esk[94 - i];
        dsk[i +  1] = esk[95 - i];

        esk[i + 32] = dsk[62 - i];
        esk[i + 33] = dsk[63 - i];

        dsk[i + 64] = esk[30 - i];
        dsk[i + 65] = esk[31 - i];
    }
}

/*
 * Triple-DES key schedule (168-bit, encryption)
 */
void des3_set3key_enc( des3_context *ctx, const unsigned char key[24] )
{
    unsigned long sk[96];

    des3_set3key( ctx->sk, sk, key );
    memset( sk, 0, sizeof( sk ) );
}

/*
 * Triple-DES key schedule (168-bit, decryption)
 */
void des3_set3key_dec( des3_context *ctx, const unsigned char key[24] )
{
    unsigned long sk[96];

    des3_set3key( sk, ctx->sk, key );
    memset( sk, 0, sizeof( sk ) );
}

/*
 * DES-ECB block encryption/decryption
 */
int des_crypt_ecb( des_context *ctx,
                    const unsigned char input[8],
                    unsigned char output[8] )
{
    int i;
    unsigned long X, Y, T, *SK;

    SK = ctx->sk;

    GET_ULONG_BE( X, input, 0 );
    GET_ULONG_BE( Y, input, 4 );

    DES_IP( X, Y );

    for( i = 0; i < 8; i++ )
    {
        DES_ROUND( Y, X );
        DES_ROUND( X, Y );
    }

    DES_FP( Y, X );

    PUT_ULONG_BE( Y, output, 0 );
    PUT_ULONG_BE( X, output, 4 );

    return( 0 );
}

/*
 * DES-CBC buffer encryption/decryption
 */
int des_crypt_cbc( des_context *ctx,
                    int mode,
                    int length,
                    unsigned char iv[8],
                    const unsigned char *input,
                    unsigned char *output )
{
    int i;
    unsigned char temp[8];

    if( length % 8 )
        return( POLARSSL_ERR_DES_INVALID_INPUT_LENGTH );

    if( mode == DES_ENCRYPT )
    {
        while( length > 0 )
        {
            for( i = 0; i < 8; i++ )
                output[i] = (unsigned char)( input[i] ^ iv[i] );

            des_crypt_ecb( ctx, output, output );
            memcpy( iv, output, 8 );

            input  += 8;
            output += 8;
            length -= 8;
        }
    }
    else /* DES_DECRYPT */
    {
        while( length > 0 )
        {
            memcpy( temp, input, 8 );
            des_crypt_ecb( ctx, input, output );

            for( i = 0; i < 8; i++ )
                output[i] = (unsigned char)( output[i] ^ iv[i] );

            memcpy( iv, temp, 8 );

            input  += 8;
            output += 8;
            length -= 8;
        }
    }

    return( 0 );
}

/*
 * 3DES-ECB block encryption/decryption
 */
int des3_crypt_ecb( des3_context *ctx,
                     const unsigned char input[8],
                     unsigned char output[8] )
{
    int i;
    unsigned long X, Y, T, *SK;

    SK = ctx->sk;

    GET_ULONG_BE( X, input, 0 );
    GET_ULONG_BE( Y, input, 4 );

    DES_IP( X, Y );

    for( i = 0; i < 8; i++ )
    {
        DES_ROUND( Y, X );
        DES_ROUND( X, Y );
    }

    for( i = 0; i < 8; i++ )
    {
        DES_ROUND( X, Y );
        DES_ROUND( Y, X );
    }

    for( i = 0; i < 8; i++ )
    {
        DES_ROUND( Y, X );
        DES_ROUND( X, Y );
    }

    DES_FP( Y, X );

    PUT_ULONG_BE( Y, output, 0 );
    PUT_ULONG_BE( X, output, 4 );

    return( 0 );
}

/*
 * 3DES-CBC buffer encryption/decryption
 */
int des3_crypt_cbc( des3_context *ctx,
                     int mode,
                     int length,
                     unsigned char iv[8],
                     const unsigned char *input,
                     unsigned char *output )
{
    int i;
    unsigned char temp[8];

    if( length % 8 )
        return( POLARSSL_ERR_DES_INVALID_INPUT_LENGTH );

    if( mode == DES_ENCRYPT )
    {
        while( length > 0 )
        {
            for( i = 0; i < 8; i++ )
                output[i] = (unsigned char)( input[i] ^ iv[i] );

            des3_crypt_ecb( ctx, output, output );
            memcpy( iv, output, 8 );

            input  += 8;
            output += 8;
            length -= 8;
        }
    }
    else /* DES_DECRYPT */
    {
        while( length > 0 )
        {
            memcpy( temp, input, 8 );
            des3_crypt_ecb( ctx, input, output );

            for( i = 0; i < 8; i++ )
                output[i] = (unsigned char)( output[i] ^ iv[i] );

            memcpy( iv, temp, 8 );

            input  += 8;
            output += 8;
            length -= 8;
        }
    }

    return( 0 );
}

#if defined(POLARSSL_SELF_TEST)

#include <stdio.h>

/*
 * DES and 3DES test vectors from:

 */
static const unsigned char des3_test_keys[24] =
{
    0x01, 0x23, 0x45, 0x67, 0x89, 0xAB, 0xCD, 0xEF,
    0x23, 0x45, 0x67, 0x89, 0xAB, 0xCD, 0xEF, 0x01,
    0x45, 0x67, 0x89, 0xAB, 0xCD, 0xEF, 0x01, 0x23
};

static const unsigned char des3_test_iv[8] =
{
    0x12, 0x34, 0x56, 0x78, 0x90, 0xAB, 0xCD, 0xEF,
};

static const unsigned char des3_test_buf[8] =
{
    0x4E, 0x6F, 0x77, 0x20, 0x69, 0x73, 0x20, 0x74
};

static const unsigned char des3_test_ecb_dec[3][8] =
{
    { 0xCD, 0xD6, 0x4F, 0x2F, 0x94, 0x27, 0xC1, 0x5D },
    { 0x69, 0x96, 0xC8, 0xFA, 0x47, 0xA2, 0xAB, 0xEB },
    { 0x83, 0x25, 0x39, 0x76, 0x44, 0x09, 0x1A, 0x0A }
};

static const unsigned char des3_test_ecb_enc[3][8] =
{
    { 0x6A, 0x2A, 0x19, 0xF4, 0x1E, 0xCA, 0x85, 0x4B },
    { 0x03, 0xE6, 0x9F, 0x5B, 0xFA, 0x58, 0xEB, 0x42 },
    { 0xDD, 0x17, 0xE8, 0xB8, 0xB4, 0x37, 0xD2, 0x32 }
};

static const unsigned char des3_test_cbc_dec[3][8] =
{
    { 0x12, 0x9F, 0x40, 0xB9, 0xD2, 0x00, 0x56, 0xB3 },
    { 0x47, 0x0E, 0xFC, 0x9A, 0x6B, 0x8E, 0xE3, 0x93 },
    { 0xC5, 0xCE, 0xCF, 0x63, 0xEC, 0xEC, 0x51, 0x4C }
};

static const unsigned char des3_test_cbc_enc[3][8] =
{
    { 0x54, 0xF1, 0x5A, 0xF6, 0xEB, 0xE3, 0xA4, 0xB4 },
    { 0x35, 0x76, 0x11, 0x56, 0x5F, 0xA1, 0x8E, 0x4D },
    { 0xCB, 0x19, 0x1F, 0x85, 0xD1, 0xED, 0x84, 0x39 }
};

/*
 * Checkup routine
 */
int des_self_test( int verbose )
{
    int i, j, u, v;
    des_context ctx;
    des3_context ctx3;
    unsigned char key[24];
    unsigned char buf[8];
    unsigned char prv[8];
    unsigned char iv[8];

    memset( key, 0, 24 );

    /*
     * ECB mode
     */
    for( i = 0; i < 6; i++ )
    {
        u = i >> 1;
        v = i  & 1;

        if( verbose != 0 )
            printf( "  DES%c-ECB-%3d (%s): ",
                    ( u == 0 ) ? ' ' : '3', 56 + u * 56,
                    ( v == DES_DECRYPT ) ? "dec" : "enc" );

        memcpy( buf, des3_test_buf, 8 );

        switch( i )
        {
        case 0:
            des_setkey_dec( &ctx, (unsigned char *) des3_test_keys );
            break;

        case 1:
            des_setkey_enc( &ctx, (unsigned char *) des3_test_keys );
            break;

        case 2:
            des3_set2key_dec( &ctx3, (unsigned char *) des3_test_keys );
            break;

        case 3:
            des3_set2key_enc( &ctx3, (unsigned char *) des3_test_keys );
            break;

        case 4:
            des3_set3key_dec( &ctx3, (unsigned char *) des3_test_keys );
            break;

        case 5:
            des3_set3key_enc( &ctx3, (unsigned char *) des3_test_keys );
            break;

        default:
            return( 1 );
        }

        for( j = 0; j < 10000; j++ )
        {
            if( u == 0 )
                des_crypt_ecb( &ctx, buf, buf );
            else
                des3_crypt_ecb( &ctx3, buf, buf );
        }

        if( ( v == DES_DECRYPT &&
                memcmp( buf, des3_test_ecb_dec[u], 8 ) != 0 ) ||
            ( v != DES_DECRYPT &&
                memcmp( buf, des3_test_ecb_enc[u], 8 ) != 0 ) )
        {
            if( verbose != 0 )
                printf( "failed
" );

            return( 1 );
        }

        if( verbose != 0 )
            printf( "passed
" );
    }

    if( verbose != 0 )
        printf( "
" );

    /*
     * CBC mode
     */
    for( i = 0; i < 6; i++ )
    {
        u = i >> 1;
        v = i  & 1;

        if( verbose != 0 )
            printf( "  DES%c-CBC-%3d (%s): ",
                    ( u == 0 ) ? ' ' : '3', 56 + u * 56,
                    ( v == DES_DECRYPT ) ? "dec" : "enc" );

        memcpy( iv,  des3_test_iv,  8 );
        memcpy( prv, des3_test_iv,  8 );
        memcpy( buf, des3_test_buf, 8 );

        switch( i )
        {
        case 0:
            des_setkey_dec( &ctx, (unsigned char *) des3_test_keys );
            break;

        case 1:
            des_setkey_enc( &ctx, (unsigned char *) des3_test_keys );
            break;

        case 2:
            des3_set2key_dec( &ctx3, (unsigned char *) des3_test_keys );
            break;

        case 3:
            des3_set2key_enc( &ctx3, (unsigned char *) des3_test_keys );
            break;

        case 4:
            des3_set3key_dec( &ctx3, (unsigned char *) des3_test_keys );
            break;

        case 5:
            des3_set3key_enc( &ctx3, (unsigned char *) des3_test_keys );
            break;

        default:
            return( 1 );
        }

        if( v == DES_DECRYPT )
        {
            for( j = 0; j < 10000; j++ )
            {
                if( u == 0 )
                    des_crypt_cbc( &ctx, v, 8, iv, buf, buf );
                else
                    des3_crypt_cbc( &ctx3, v, 8, iv, buf, buf );
            }
        }
        else
        {
            for( j = 0; j < 10000; j++ )
            {
                unsigned char tmp[8];

                if( u == 0 )
                    des_crypt_cbc( &ctx, v, 8, iv, buf, buf );
                else
                    des3_crypt_cbc( &ctx3, v, 8, iv, buf, buf );

                memcpy( tmp, prv, 8 );
                memcpy( prv, buf, 8 );
                memcpy( buf, tmp, 8 );
            }

            memcpy( buf, prv, 8 );
        }

        if( ( v == DES_DECRYPT &&
                memcmp( buf, des3_test_cbc_dec[u], 8 ) != 0 ) ||
            ( v != DES_DECRYPT &&
                memcmp( buf, des3_test_cbc_enc[u], 8 ) != 0 ) )
        {
            if( verbose != 0 )
                printf( "failed
" );

            return( 1 );
        }

        if( verbose != 0 )
            printf( "passed
" );
    }

    if( verbose != 0 )
        printf( "
" );

    return( 0 );
}

#endif

#endif
/*里面包含加密  解密    des    DES3    */
/*
int for_encrypt_des3(char *data, unsigned int len)
{
    int i, j;
    unsigned char buf[BUFSIZE];
    unsigned long tsc;
      unsigned char tmp[64];
    FILE *fp;

    des3_context des3;


//    des_context des;

    des_setkey_enc( &des, tmp);
        set_alarm( 1 );
        for(i=1; !alarmed; i++)  des_crypt_cbc( &des, DES_ENCRYPT, BUFSIZE, tmp, buf, buf );
        tsc = hardclock();
        for(j=0; j<1024; j++)    des_crypt_cbc( &des, DES_ENCRYPT, BUFSIZE, tmp, buf, buf );
        printf("DES  speed: %9lu Kb/s,  %9lu cycles/byte
", i*BUFSIZE /1024,  (hardclock()-tsc)/(j*BUFSIZE));




    des3_set3key_enc( &des3, tmp );
    set_alarm( 1 ); 
    for(i=1; !alarmed; i++)  des3_crypt_cbc( &des3, DES_ENCRYPT, BUFSIZE, tmp, buf, buf );
    tsc = hardclock();
    for(j=0; j<1024; j++)    des3_crypt_cbc( &des3, DES_ENCRYPT, BUFSIZE, tmp, buf, buf );

    DO_LOG("DES3 speed: %9lu Kb/s,  %9lu cycles/byte
", i*BUFSIZE/1024, (hardclock()-tsc)/(j*BUFSIZE));



    memset(tmp, 0, sizeof(tmp)); strcpy(tmp, "01234567abcdefgh");
    memset(buf, 0, sizeof(buf)); strncpy(buf, data,len);
    des3_set3key_enc( &des3, tmp);
    DO_LOG("DES3 pwd=%s, txt=%s
", tmp, buf);
    des3_crypt_cbc(&des3, DES_ENCRYPT, 32768, tmp, buf, buf );
    DO_LOG("encrypt txt=%s
",buf);
    fp = fopen("/D1", "wb");
        if(fp!=NULL)
        {
            fprintf(fp,"%s",buf);
            fclose(fp);
        }




memset(tmp, 0, sizeof(tmp)); strcpy(tmp, "01234567abcdefgh");
    des3_set3key_dec(&des3, tmp);
    des3_crypt_cbc(&des3, DES_DECRYPT, 32768, tmp, buf, buf );
    //DO_LOG("decrypt txt=  %s
",buf);


    memset(tmp, 0, sizeof(tmp)); strcpy(tmp, "01234567abcdefgh");
    des_setkey_dec(&des, tmp);
    des_crypt_cbc(&des, DES_DECRYPT, 32768, tmp, buf, buf );
    fp = fopen("/D2", "wb");
        if(fp!=NULL)
        {
            fprintf(fp,"%s",buf);
            fclose(fp);
        }
    return 0;
}
*/
int hexcharToInt(char c)
{ 
    if (c >= '0' && c <= '9') return (c - '0');
    if (c >= 'A' && c <= 'F') return (c - 'A' + 10);
    if (c >= 'a' && c <= 'f') return (c - 'a' + 10);
    return 0;
}

void hexstringToBytes(char* hexstring,char* bytes,int hexlength)
{         
    int i=0 ;
    //cout<<"length is :"<<sizeof(hexstring)/sizeof(char)<<endl;
    for (i=0 ; i <hexlength ; i+=2)
        {
        bytes[i/2] = (char) ((hexcharToInt(hexstring[i]) << 4)| hexcharToInt(hexstring[i+1]));
    }
}

void for_decode_des3(unsigned char *data, unsigned int len)//解密
{
    char buf[3000];
      unsigned char tmp[64];
    des3_context des3;
    memset(buf, 0, 3000);
    hexstringToBytes((char *)data, buf, 3000);
    memset(data,0,3000);
    strncpy((char*)data,buf,strlen(buf));
    
    
    memset(tmp, 0, sizeof(tmp)); strcpy((char*)tmp, "JDWA2003");
    des3_set3key_dec(&des3, tmp);
    des3_crypt_cbc(&des3, DES_DECRYPT, 1024, tmp, data,data);
}