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Diff for /OpenXM_contrib2/asir2000/io/des.c between version 1.5 and 1.6

version 1.5, 2000/12/05 09:06:03 version 1.6, 2001/10/09 01:36:20
Line 1 
Line 1 
 /* $OpenXM$ */  /* $OpenXM: OpenXM_contrib2/asir2000/io/des.c,v 1.5 2000/12/05 09:06:03 noro Exp $ */
  /* Copyright (C) 1996 S.Amada */   /* Copyright (C) 1996 S.Amada */
   
 #include    <stdio.h>  #include    <stdio.h>
 #include    <stdlib.h>  #include    <stdlib.h>
   #include    <string.h>
   
 #define ROUND   16  /* 段数 */  #define ROUND   16  /* 段数 */
   
Line 16  void des_enc(ULONG *, UCHAR *, ULONG *);
Line 17  void des_enc(ULONG *, UCHAR *, ULONG *);
 ULONG   round_func(ULONG , UCHAR *);  ULONG   round_func(ULONG , UCHAR *);
 ULONG   s_box_func(UCHAR *);  ULONG   s_box_func(UCHAR *);
 void    des_dec(ULONG *, UCHAR *, ULONG *);  void    des_dec(ULONG *, UCHAR *, ULONG *);
   void    key_schedule(UCHAR *,UCHAR *);
   
 /*  鍵の縮約型転置 PC-1 */  /*  鍵の縮約型転置 PC-1 */
 static USHORT   pc_1[56] = {  static USHORT   pc_1[56] = {
Line 172  UCHAR *r_key;     /* 拡大鍵(48 * 16 bit) */
Line 174  UCHAR *r_key;     /* 拡大鍵(48 * 16 bit) */
 ULONG   *cipher;    /* 暗号文(64 bit)           */  ULONG   *cipher;    /* 暗号文(64 bit)           */
 {  {
     ULONG   l_text,r_text,      ULONG   l_text,r_text,
             l_work,r_work,tmp_text,c_text[2];              l_work,r_work,tmp_text;
     int     loop;      int     loop;
   
   
Line 363  UCHAR *i_data;
Line 365  UCHAR *i_data;
     for(loop = 0;loop < 6;loop++,i_data++) work[loop] = *i_data;      for(loop = 0;loop < 6;loop++,i_data++) work[loop] = *i_data;
   
 /* S1 */  /* S1 */
     s_work[0] = (work[0] >> 2) & 0x3fL;      s_work[0] = (work[0] >> 2) & 0x3f;
     val = (s_work[0] >> 1) & 0x0fL;      val = (s_work[0] >> 1) & 0x0f;
     if(s_work[0] & 0x20L)      if(s_work[0] & 0x20L)
     {      {
         if(s_work[0] & 0x01L) s_work[0] = s_1[val+48];          if(s_work[0] & 0x01L) s_work[0] = (UCHAR)s_1[val+48];
         else s_work[0] = s_1[val+32];          else s_work[0] = (UCHAR)s_1[val+32];
     }      }
     else      else
     {      {
         if(s_work[0] & 0x01L) s_work[0] = s_1[val+16];          if(s_work[0] & 0x01L) s_work[0] = (UCHAR)s_1[val+16];
         else s_work[0] = s_1[val];          else s_work[0] = (UCHAR)s_1[val];
     }      }
   
 /* S2 */  /* S2 */
     s_work[1] = ((work[0] << 4) | (work[1] >> 4)) & 0x3fL;      s_work[1] = ((work[0] << 4) | (work[1] >> 4)) & 0x3f;
     val = (s_work[1] >> 1) & 0x0fL;      val = (s_work[1] >> 1) & 0x0f;
     if(s_work[1] & 0x20L)      if(s_work[1] & 0x20L)
     {      {
         if(s_work[1] & 0x01L) s_work[1] = s_2[val+48];          if(s_work[1] & 0x01L) s_work[1] = (UCHAR)s_2[val+48];
         else s_work[1] = s_2[val+32];          else s_work[1] = (UCHAR)s_2[val+32];
     }      }
     else      else
     {      {
         if(s_work[1] & 0x01L) s_work[1] = s_2[val+16];          if(s_work[1] & 0x01L) s_work[1] = (UCHAR)s_2[val+16];
         else s_work[1] = s_2[val];          else s_work[1] = (UCHAR)s_2[val];
     }      }
   
 /* S3 */  /* S3 */
     s_work[2] = ((work[1] << 2) | (work[2] >> 6)) & 0x3fL;      s_work[2] = ((work[1] << 2) | (work[2] >> 6)) & 0x3f;
     val = (s_work[2] >> 1) & 0x0fL;      val = (s_work[2] >> 1) & 0x0f;
     if(s_work[2] & 0x20L)      if(s_work[2] & 0x20L)
     {      {
         if(s_work[2] & 0x01L) s_work[2] = s_3[val+48];          if(s_work[2] & 0x01L) s_work[2] = (UCHAR)s_3[val+48];
         else s_work[2] = s_3[val+32];          else s_work[2] = (UCHAR)s_3[val+32];
     }      }
     else      else
     {      {
         if(s_work[2] & 0x01L) s_work[2] = s_3[val+16];          if(s_work[2] & 0x01L) s_work[2] = (UCHAR)s_3[val+16];
         else s_work[2] = s_3[val];          else s_work[2] = (UCHAR)s_3[val];
     }      }
   
 /* S4 */  /* S4 */
     s_work[3] = work[2] & 0x3fL;      s_work[3] = work[2] & 0x3f;
     val = (s_work[3] >> 1) & 0x0fL;      val = (s_work[3] >> 1) & 0x0f;
     if(s_work[3] & 0x20L)      if(s_work[3] & 0x20L)
     {      {
         if(s_work[3] & 0x01L) s_work[3] = s_4[val+48];          if(s_work[3] & 0x01L) s_work[3] = (UCHAR)s_4[val+48];
         else s_work[3] = s_4[val+32];          else s_work[3] = (UCHAR)s_4[val+32];
     }      }
     else      else
     {      {
         if(s_work[3] & 0x01L) s_work[3] = s_4[val+16];          if(s_work[3] & 0x01L) s_work[3] = (UCHAR)s_4[val+16];
         else s_work[3] = s_4[val];          else s_work[3] = (UCHAR)s_4[val];
     }      }
   
 /* S5 */  /* S5 */
     s_work[4] = (work[3] >> 2) & 0x3fL;      s_work[4] = (work[3] >> 2) & 0x3f;
     val = (s_work[4] >> 1) & 0x0fL;      val = (s_work[4] >> 1) & 0x0f;
     if(s_work[4] & 0x20L)      if(s_work[4] & 0x20L)
     {      {
         if(s_work[4] & 0x01L) s_work[4] = s_5[val+48];          if(s_work[4] & 0x01L) s_work[4] = (UCHAR)s_5[val+48];
         else s_work[4] = s_5[val+32];          else s_work[4] = (UCHAR)s_5[val+32];
     }      }
     else      else
     {      {
         if(s_work[4] & 0x01L) s_work[4] = s_5[val+16];          if(s_work[4] & 0x01L) s_work[4] = (UCHAR)s_5[val+16];
         else s_work[4] = s_5[val];          else s_work[4] = (UCHAR)s_5[val];
     }      }
   
 /* S6 */  /* S6 */
     s_work[5] = ((work[3] << 4) | (work[4] >> 4)) & 0x3fL;      s_work[5] = ((work[3] << 4) | (work[4] >> 4)) & 0x3f;
     val = (s_work[5] >> 1) & 0x0fL;      val = (s_work[5] >> 1) & 0x0f;
     if(s_work[5] & 0x20L)      if(s_work[5] & 0x20L)
     {      {
         if(s_work[5] & 0x01L) s_work[5] = s_6[val+48];          if(s_work[5] & 0x01L) s_work[5] = (UCHAR)s_6[val+48];
         else s_work[5] = s_6[val+32];          else s_work[5] = (UCHAR)s_6[val+32];
     }      }
     else      else
     {      {
         if(s_work[5] & 0x01L) s_work[5] = s_6[val+16];          if(s_work[5] & 0x01L) s_work[5] = (UCHAR)s_6[val+16];
         else s_work[5] = s_6[val];          else s_work[5] = (UCHAR)s_6[val];
     }      }
   
 /* S7 */  /* S7 */
     s_work[6] = ((work[4] << 2) | (work[5] >> 6)) & 0x3fL;      s_work[6] = ((work[4] << 2) | (work[5] >> 6)) & 0x3f;
     val = (s_work[6] >> 1) & 0x0fL;      val = (s_work[6] >> 1) & 0x0f;
     if(s_work[6] & 0x20L)      if(s_work[6] & 0x20L)
     {      {
         if(s_work[6] & 0x01L) s_work[6] = s_7[val+48];          if(s_work[6] & 0x01L) s_work[6] = (UCHAR)s_7[val+48];
         else s_work[6] = s_7[val+32];          else s_work[6] = (UCHAR)s_7[val+32];
     }      }
     else      else
     {      {
         if(s_work[6] & 0x01L) s_work[6] = s_7[val+16];          if(s_work[6] & 0x01L) s_work[6] = (UCHAR)s_7[val+16];
         else s_work[6] = s_7[val];          else s_work[6] = (UCHAR)s_7[val];
     }      }
   
 /* S8 */  /* S8 */
     s_work[7] = work[5] & 0x3fL;      s_work[7] = work[5] & 0x3f;
     val = (s_work[7] >> 1) & 0x0fL;      val = (s_work[7] >> 1) & 0x0f;
     if(s_work[7] & 0x20L)      if(s_work[7] & 0x20L)
     {      {
         if(s_work[7] & 0x01L) s_work[7] = s_8[val+48];          if(s_work[7] & 0x01L) s_work[7] = (UCHAR)s_8[val+48];
         else s_work[7] = s_8[val+32];          else s_work[7] = (UCHAR)s_8[val+32];
     }      }
     else      else
     {      {
         if(s_work[7] & 0x01L) s_work[7] = s_8[val+16];          if(s_work[7] & 0x01L) s_work[7] = (UCHAR)s_8[val+16];
         else s_work[7] = s_8[val];          else s_work[7] = (UCHAR)s_8[val];
     }      }
   
     fval = (s_work[0] << 28) | (s_work[1] << 24)      fval = (s_work[0] << 28) | (s_work[1] << 24)
Line 623  UCHAR *key,*ex_key;
Line 625  UCHAR *key,*ex_key;
     ULONG   k_work1,k_work2,      ULONG   k_work1,k_work2,
             c_key,d_key,              c_key,d_key,
             c_tmp,d_tmp;              c_tmp,d_tmp;
     int     loop,loop2,len,strcnt;      int     loop,loop2;
   
   
     k_work1 = 0x00000000L;      k_work1 = 0x00000000L;
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