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1 /* crypto/des/des.h */ |
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2 /* Copyright (C) 1995-1997 Eric Young (eay@cryptsoft.com) |
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3 * All rights reserved. |
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4 * |
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5 * This package is an SSL implementation written |
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6 * by Eric Young (eay@cryptsoft.com). |
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7 * The implementation was written so as to conform with Netscapes SSL. |
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8 * |
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9 * This library is free for commercial and non-commercial use as long as |
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10 * the following conditions are aheared to. The following conditions |
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11 * apply to all code found in this distribution, be it the RC4, RSA, |
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12 * lhash, DES, etc., code; not just the SSL code. The SSL documentation |
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13 * included with this distribution is covered by the same copyright terms |
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14 * except that the holder is Tim Hudson (tjh@cryptsoft.com). |
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15 * |
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16 * Copyright remains Eric Young's, and as such any Copyright notices in |
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17 * the code are not to be removed. |
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18 * If this package is used in a product, Eric Young should be given attribution |
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19 * as the author of the parts of the library used. |
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20 * This can be in the form of a textual message at program startup or |
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21 * in documentation (online or textual) provided with the package. |
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22 * |
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23 * Redistribution and use in source and binary forms, with or without |
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24 * modification, are permitted provided that the following conditions |
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25 * are met: |
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26 * 1. Redistributions of source code must retain the copyright |
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27 * notice, this list of conditions and the following disclaimer. |
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28 * 2. Redistributions in binary form must reproduce the above copyright |
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29 * notice, this list of conditions and the following disclaimer in the |
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30 * documentation and/or other materials provided with the distribution. |
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31 * 3. All advertising materials mentioning features or use of this software |
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32 * must display the following acknowledgement: |
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33 * "This product includes cryptographic software written by |
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34 * Eric Young (eay@cryptsoft.com)" |
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35 * The word 'cryptographic' can be left out if the rouines from the library |
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36 * being used are not cryptographic related :-). |
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37 * 4. If you include any Windows specific code (or a derivative thereof) from |
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38 * the apps directory (application code) you must include an acknowledgement: |
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39 * "This product includes software written by Tim Hudson (tjh@cryptsoft.com)" |
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40 * |
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41 * THIS SOFTWARE IS PROVIDED BY ERIC YOUNG ``AS IS'' AND |
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42 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE |
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43 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE |
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44 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE |
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45 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL |
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46 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS |
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47 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) |
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48 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT |
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49 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY |
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50 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF |
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51 * SUCH DAMAGE. |
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52 * |
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53 * The licence and distribution terms for any publically available version or |
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54 * derivative of this code cannot be changed. i.e. this code cannot simply be |
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55 * copied and put under another distribution licence |
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56 * [including the GNU Public Licence.] |
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57 */ |
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58 |
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59 #ifndef HEADER_NEW_DES_H |
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60 #define HEADER_NEW_DES_H |
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61 |
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62 #ifdef OPENSSL_NO_DES |
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63 #error DES is disabled. |
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64 #endif |
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65 |
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66 #include <openssl/opensslconf.h> /* DES_LONG */ |
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67 #include <openssl/e_os2.h> /* OPENSSL_EXTERN */ |
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68 |
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69 #ifdef OPENSSL_BUILD_SHLIBCRYPTO |
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70 # undef OPENSSL_EXTERN |
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71 # define OPENSSL_EXTERN OPENSSL_EXPORT |
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72 #endif |
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73 |
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74 #ifdef __cplusplus |
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75 extern "C" { |
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76 #endif |
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77 |
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78 typedef unsigned char DES_cblock[8]; |
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79 typedef /* const */ unsigned char const_DES_cblock[8]; |
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80 /* With "const", gcc 2.8.1 on Solaris thinks that DES_cblock * |
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81 * and const_DES_cblock * are incompatible pointer types. */ |
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82 |
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83 typedef struct DES_ks |
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84 { |
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85 union |
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86 { |
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87 DES_cblock cblock; |
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88 /* make sure things are correct size on machines with |
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89 * 8 byte longs */ |
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90 DES_LONG deslong[2]; |
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91 } ks[16]; |
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92 } DES_key_schedule; |
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93 |
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94 #ifndef OPENSSL_DISABLE_OLD_DES_SUPPORT |
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95 # ifndef OPENSSL_ENABLE_OLD_DES_SUPPORT |
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96 # define OPENSSL_ENABLE_OLD_DES_SUPPORT |
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97 # endif |
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98 #endif |
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99 |
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100 #ifdef OPENSSL_ENABLE_OLD_DES_SUPPORT |
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101 # include <openssl/des_old.h> |
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102 #endif |
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103 |
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104 #define DES_KEY_SZ (sizeof(DES_cblock)) |
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105 #define DES_SCHEDULE_SZ (sizeof(DES_key_schedule)) |
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106 |
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107 #define DES_ENCRYPT 1 |
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108 #define DES_DECRYPT 0 |
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109 |
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110 #define DES_CBC_MODE 0 |
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111 #define DES_PCBC_MODE 1 |
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112 |
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113 #define DES_ecb2_encrypt(i,o,k1,k2,e) \ |
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114 DES_ecb3_encrypt((i),(o),(k1),(k2),(k1),(e)) |
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115 |
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116 #define DES_ede2_cbc_encrypt(i,o,l,k1,k2,iv,e) \ |
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117 DES_ede3_cbc_encrypt((i),(o),(l),(k1),(k2),(k1),(iv),(e)) |
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118 |
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119 #define DES_ede2_cfb64_encrypt(i,o,l,k1,k2,iv,n,e) \ |
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120 DES_ede3_cfb64_encrypt((i),(o),(l),(k1),(k2),(k1),(iv),(n),(e)) |
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121 |
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122 #define DES_ede2_ofb64_encrypt(i,o,l,k1,k2,iv,n) \ |
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123 DES_ede3_ofb64_encrypt((i),(o),(l),(k1),(k2),(k1),(iv),(n)) |
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124 |
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125 OPENSSL_DECLARE_GLOBAL(int,DES_check_key); /* defaults to false */ |
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126 #define DES_check_key OPENSSL_GLOBAL_REF(DES_check_key) |
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127 OPENSSL_DECLARE_GLOBAL(int,DES_rw_mode); /* defaults to DES_PCBC_MODE */ |
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128 #define DES_rw_mode OPENSSL_GLOBAL_REF(DES_rw_mode) |
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129 |
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130 const char *DES_options(void); |
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131 void DES_ecb3_encrypt(const_DES_cblock *input, DES_cblock *output, |
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132 DES_key_schedule *ks1,DES_key_schedule *ks2, |
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133 DES_key_schedule *ks3, int enc); |
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134 DES_LONG DES_cbc_cksum(const unsigned char *input,DES_cblock *output, |
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135 long length,DES_key_schedule *schedule, |
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136 const_DES_cblock *ivec); |
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137 /* DES_cbc_encrypt does not update the IV! Use DES_ncbc_encrypt instead. */ |
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138 void DES_cbc_encrypt(const unsigned char *input,unsigned char *output, |
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139 long length,DES_key_schedule *schedule,DES_cblock *ivec, |
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140 int enc); |
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141 void DES_ncbc_encrypt(const unsigned char *input,unsigned char *output, |
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142 long length,DES_key_schedule *schedule,DES_cblock *ivec, |
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143 int enc); |
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144 void DES_xcbc_encrypt(const unsigned char *input,unsigned char *output, |
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145 long length,DES_key_schedule *schedule,DES_cblock *ivec, |
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146 const_DES_cblock *inw,const_DES_cblock *outw,int enc); |
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147 void DES_cfb_encrypt(const unsigned char *in,unsigned char *out,int numbits, |
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148 long length,DES_key_schedule *schedule,DES_cblock *ivec, |
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149 int enc); |
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150 void DES_ecb_encrypt(const_DES_cblock *input,DES_cblock *output, |
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151 DES_key_schedule *ks,int enc); |
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152 |
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153 /* This is the DES encryption function that gets called by just about |
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154 every other DES routine in the library. You should not use this |
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155 function except to implement 'modes' of DES. I say this because the |
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156 functions that call this routine do the conversion from 'char *' to |
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157 long, and this needs to be done to make sure 'non-aligned' memory |
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158 access do not occur. The characters are loaded 'little endian'. |
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159 Data is a pointer to 2 unsigned long's and ks is the |
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160 DES_key_schedule to use. enc, is non zero specifies encryption, |
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161 zero if decryption. */ |
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162 void DES_encrypt1(DES_LONG *data,DES_key_schedule *ks, int enc); |
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163 |
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164 /* This functions is the same as DES_encrypt1() except that the DES |
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165 initial permutation (IP) and final permutation (FP) have been left |
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166 out. As for DES_encrypt1(), you should not use this function. |
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167 It is used by the routines in the library that implement triple DES. |
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168 IP() DES_encrypt2() DES_encrypt2() DES_encrypt2() FP() is the same |
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169 as DES_encrypt1() DES_encrypt1() DES_encrypt1() except faster :-). */ |
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170 void DES_encrypt2(DES_LONG *data,DES_key_schedule *ks, int enc); |
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171 |
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172 void DES_encrypt3(DES_LONG *data, DES_key_schedule *ks1, |
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173 DES_key_schedule *ks2, DES_key_schedule *ks3); |
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174 void DES_decrypt3(DES_LONG *data, DES_key_schedule *ks1, |
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175 DES_key_schedule *ks2, DES_key_schedule *ks3); |
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176 void DES_ede3_cbc_encrypt(const unsigned char *input,unsigned char *output, |
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177 long length, |
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178 DES_key_schedule *ks1,DES_key_schedule *ks2, |
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179 DES_key_schedule *ks3,DES_cblock *ivec,int enc); |
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180 void DES_ede3_cbcm_encrypt(const unsigned char *in,unsigned char *out, |
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181 long length, |
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182 DES_key_schedule *ks1,DES_key_schedule *ks2, |
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183 DES_key_schedule *ks3, |
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184 DES_cblock *ivec1,DES_cblock *ivec2, |
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185 int enc); |
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186 void DES_ede3_cfb64_encrypt(const unsigned char *in,unsigned char *out, |
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187 long length,DES_key_schedule *ks1, |
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188 DES_key_schedule *ks2,DES_key_schedule *ks3, |
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189 DES_cblock *ivec,int *num,int enc); |
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190 void DES_ede3_ofb64_encrypt(const unsigned char *in,unsigned char *out, |
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191 long length,DES_key_schedule *ks1, |
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192 DES_key_schedule *ks2,DES_key_schedule *ks3, |
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193 DES_cblock *ivec,int *num); |
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194 |
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195 void DES_xwhite_in2out(const_DES_cblock *DES_key,const_DES_cblock *in_white, |
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196 DES_cblock *out_white); |
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197 |
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198 int DES_enc_read(int fd,void *buf,int len,DES_key_schedule *sched, |
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199 DES_cblock *iv); |
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200 int DES_enc_write(int fd,const void *buf,int len,DES_key_schedule *sched, |
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201 DES_cblock *iv); |
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202 char *DES_fcrypt(const char *buf,const char *salt, char *ret); |
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203 char *DES_crypt(const char *buf,const char *salt); |
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204 void DES_ofb_encrypt(const unsigned char *in,unsigned char *out,int numbits, |
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205 long length,DES_key_schedule *schedule,DES_cblock *ivec); |
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206 void DES_pcbc_encrypt(const unsigned char *input,unsigned char *output, |
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207 long length,DES_key_schedule *schedule,DES_cblock *ivec, |
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208 int enc); |
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209 DES_LONG DES_quad_cksum(const unsigned char *input,DES_cblock output[], |
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210 long length,int out_count,DES_cblock *seed); |
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211 int DES_random_key(DES_cblock *ret); |
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212 void DES_set_odd_parity(DES_cblock *key); |
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213 int DES_check_key_parity(const_DES_cblock *key); |
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214 int DES_is_weak_key(const_DES_cblock *key); |
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215 /* DES_set_key (= set_key = DES_key_sched = key_sched) calls |
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216 * DES_set_key_checked if global variable DES_check_key is set, |
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217 * DES_set_key_unchecked otherwise. */ |
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218 int DES_set_key(const_DES_cblock *key,DES_key_schedule *schedule); |
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219 int DES_key_sched(const_DES_cblock *key,DES_key_schedule *schedule); |
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220 int DES_set_key_checked(const_DES_cblock *key,DES_key_schedule *schedule); |
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221 void DES_set_key_unchecked(const_DES_cblock *key,DES_key_schedule *schedule); |
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222 void DES_string_to_key(const char *str,DES_cblock *key); |
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223 void DES_string_to_2keys(const char *str,DES_cblock *key1,DES_cblock *key2); |
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224 void DES_cfb64_encrypt(const unsigned char *in,unsigned char *out,long length, |
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225 DES_key_schedule *schedule,DES_cblock *ivec,int *num, |
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226 int enc); |
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227 void DES_ofb64_encrypt(const unsigned char *in,unsigned char *out,long length, |
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228 DES_key_schedule *schedule,DES_cblock *ivec,int *num); |
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229 |
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230 int DES_read_password(DES_cblock *key, const char *prompt, int verify); |
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231 int DES_read_2passwords(DES_cblock *key1, DES_cblock *key2, const char *prompt, |
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232 int verify); |
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233 |
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234 #define DES_fixup_key_parity DES_set_odd_parity |
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235 |
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236 #ifdef __cplusplus |
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237 } |
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238 #endif |
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239 |
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240 #endif |
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241 |