Mercurial > trustbridge > nss-cmake-static

annotate nss/lib/freebl/desblapi.c @ 4:b513267f632f tip

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Build DBM module
author Andre Heinecke <andre.heinecke@intevation.de>
date Tue, 05 Aug 2014 18:58:03 +0200
parents 1e5118fa0cb1
children
rev   line source
0
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1 /*
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2 * desblapi.c
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3 *
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4 * core source file for DES-150 library
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5 * Implement DES Modes of Operation and Triple-DES.
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6 * Adapt DES-150 to blapi API.
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7 *
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8 * This Source Code Form is subject to the terms of the Mozilla Public
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9 * License, v. 2.0. If a copy of the MPL was not distributed with this
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10 * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
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11
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12 #ifdef FREEBL_NO_DEPEND
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13 #include "stubs.h"
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14 #endif
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15
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16 #include "des.h"
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17 #include <stddef.h>
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18 #include "secerr.h"
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19
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20 #if defined(NSS_X86_OR_X64)
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21 /* Intel X86 CPUs do unaligned loads and stores without complaint. */
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22 #define COPY8B(to, from, ptr) \
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23 HALFPTR(to)[0] = HALFPTR(from)[0]; \
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24 HALFPTR(to)[1] = HALFPTR(from)[1];
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25 #elif defined(USE_MEMCPY)
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26 #define COPY8B(to, from, ptr) memcpy(to, from, 8)
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27 #else
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28 #define COPY8B(to, from, ptr) \
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29 if (((ptrdiff_t)(ptr) & 0x3) == 0) { \
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30 HALFPTR(to)[0] = HALFPTR(from)[0]; \
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31 HALFPTR(to)[1] = HALFPTR(from)[1]; \
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32 } else if (((ptrdiff_t)(ptr) & 0x1) == 0) { \
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33 SHORTPTR(to)[0] = SHORTPTR(from)[0]; \
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34 SHORTPTR(to)[1] = SHORTPTR(from)[1]; \
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35 SHORTPTR(to)[2] = SHORTPTR(from)[2]; \
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36 SHORTPTR(to)[3] = SHORTPTR(from)[3]; \
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37 } else { \
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38 BYTEPTR(to)[0] = BYTEPTR(from)[0]; \
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39 BYTEPTR(to)[1] = BYTEPTR(from)[1]; \
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40 BYTEPTR(to)[2] = BYTEPTR(from)[2]; \
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41 BYTEPTR(to)[3] = BYTEPTR(from)[3]; \
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42 BYTEPTR(to)[4] = BYTEPTR(from)[4]; \
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43 BYTEPTR(to)[5] = BYTEPTR(from)[5]; \
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44 BYTEPTR(to)[6] = BYTEPTR(from)[6]; \
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45 BYTEPTR(to)[7] = BYTEPTR(from)[7]; \
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46 }
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47 #endif
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48 #define COPY8BTOHALF(to, from) COPY8B(to, from, from)
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49 #define COPY8BFROMHALF(to, from) COPY8B(to, from, to)
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50
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51 static void
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52 DES_ECB(DESContext *cx, BYTE *out, const BYTE *in, unsigned int len)
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53 {
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54 while (len) {
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55 DES_Do1Block(cx->ks0, in, out);
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56 len -= 8;
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57 in += 8;
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58 out += 8;
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59 }
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60 }
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61
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62 static void
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63 DES_EDE3_ECB(DESContext *cx, BYTE *out, const BYTE *in, unsigned int len)
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64 {
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65 while (len) {
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66 DES_Do1Block(cx->ks0, in, out);
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67 len -= 8;
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68 in += 8;
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69 DES_Do1Block(cx->ks1, out, out);
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70 DES_Do1Block(cx->ks2, out, out);
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71 out += 8;
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72 }
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73 }
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74
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75 static void
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76 DES_CBCEn(DESContext *cx, BYTE *out, const BYTE *in, unsigned int len)
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77 {
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78 const BYTE * bufend = in + len;
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79 HALF vec[2];
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80
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81 while (in != bufend) {
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82 COPY8BTOHALF(vec, in);
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83 in += 8;
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84 vec[0] ^= cx->iv[0];
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85 vec[1] ^= cx->iv[1];
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86 DES_Do1Block( cx->ks0, (BYTE *)vec, (BYTE *)cx->iv);
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87 COPY8BFROMHALF(out, cx->iv);
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88 out += 8;
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89 }
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90 }
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91
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92 static void
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93 DES_CBCDe(DESContext *cx, BYTE *out, const BYTE *in, unsigned int len)
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94 {
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95 const BYTE * bufend;
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96 HALF oldciphertext[2];
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97 HALF plaintext [2];
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98
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99 for (bufend = in + len; in != bufend; ) {
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100 oldciphertext[0] = cx->iv[0];
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101 oldciphertext[1] = cx->iv[1];
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102 COPY8BTOHALF(cx->iv, in);
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103 in += 8;
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104 DES_Do1Block(cx->ks0, (BYTE *)cx->iv, (BYTE *)plaintext);
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105 plaintext[0] ^= oldciphertext[0];
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106 plaintext[1] ^= oldciphertext[1];
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107 COPY8BFROMHALF(out, plaintext);
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108 out += 8;
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109 }
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110 }
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111
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112 static void
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113 DES_EDE3CBCEn(DESContext *cx, BYTE *out, const BYTE *in, unsigned int len)
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114 {
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115 const BYTE * bufend = in + len;
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116 HALF vec[2];
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117
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118 while (in != bufend) {
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119 COPY8BTOHALF(vec, in);
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120 in += 8;
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121 vec[0] ^= cx->iv[0];
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122 vec[1] ^= cx->iv[1];
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123 DES_Do1Block( cx->ks0, (BYTE *)vec, (BYTE *)cx->iv);
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124 DES_Do1Block( cx->ks1, (BYTE *)cx->iv, (BYTE *)cx->iv);
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125 DES_Do1Block( cx->ks2, (BYTE *)cx->iv, (BYTE *)cx->iv);
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126 COPY8BFROMHALF(out, cx->iv);
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127 out += 8;
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Andre Heinecke <andre.heinecke@intevation.de>
parents:
diff changeset
128 }
1e5118fa0cb1 This is NSS with a Cmake Buildsyste
Andre Heinecke <andre.heinecke@intevation.de>
parents:
diff changeset
129 }
1e5118fa0cb1 This is NSS with a Cmake Buildsyste
Andre Heinecke <andre.heinecke@intevation.de>
parents:
diff changeset
130
1e5118fa0cb1 This is NSS with a Cmake Buildsyste
Andre Heinecke <andre.heinecke@intevation.de>
parents:
diff changeset
131 static void
1e5118fa0cb1 This is NSS with a Cmake Buildsyste
Andre Heinecke <andre.heinecke@intevation.de>
parents:
diff changeset
132 DES_EDE3CBCDe(DESContext *cx, BYTE *out, const BYTE *in, unsigned int len)
1e5118fa0cb1 This is NSS with a Cmake Buildsyste
Andre Heinecke <andre.heinecke@intevation.de>
parents:
diff changeset
133 {
1e5118fa0cb1 This is NSS with a Cmake Buildsyste
Andre Heinecke <andre.heinecke@intevation.de>
parents:
diff changeset
134 const BYTE * bufend;
1e5118fa0cb1 This is NSS with a Cmake Buildsyste
Andre Heinecke <andre.heinecke@intevation.de>
parents:
diff changeset
135 HALF oldciphertext[2];
1e5118fa0cb1 This is NSS with a Cmake Buildsyste
Andre Heinecke <andre.heinecke@intevation.de>
parents:
diff changeset
136 HALF plaintext [2];
1e5118fa0cb1 This is NSS with a Cmake Buildsyste
Andre Heinecke <andre.heinecke@intevation.de>
parents:
diff changeset
137
1e5118fa0cb1 This is NSS with a Cmake Buildsyste
Andre Heinecke <andre.heinecke@intevation.de>
parents:
diff changeset
138 for (bufend = in + len; in != bufend; ) {
1e5118fa0cb1 This is NSS with a Cmake Buildsyste
Andre Heinecke <andre.heinecke@intevation.de>
parents:
diff changeset
139 oldciphertext[0] = cx->iv[0];
1e5118fa0cb1 This is NSS with a Cmake Buildsyste
Andre Heinecke <andre.heinecke@intevation.de>
parents:
diff changeset
140 oldciphertext[1] = cx->iv[1];
1e5118fa0cb1 This is NSS with a Cmake Buildsyste
Andre Heinecke <andre.heinecke@intevation.de>
parents:
diff changeset
141 COPY8BTOHALF(cx->iv, in);
1e5118fa0cb1 This is NSS with a Cmake Buildsyste
Andre Heinecke <andre.heinecke@intevation.de>
parents:
diff changeset
142 in += 8;
1e5118fa0cb1 This is NSS with a Cmake Buildsyste
Andre Heinecke <andre.heinecke@intevation.de>
parents:
diff changeset
143 DES_Do1Block(cx->ks0, (BYTE *)cx->iv, (BYTE *)plaintext);
1e5118fa0cb1 This is NSS with a Cmake Buildsyste
Andre Heinecke <andre.heinecke@intevation.de>
parents:
diff changeset
144 DES_Do1Block(cx->ks1, (BYTE *)plaintext, (BYTE *)plaintext);
1e5118fa0cb1 This is NSS with a Cmake Buildsyste
Andre Heinecke <andre.heinecke@intevation.de>
parents:
diff changeset
145 DES_Do1Block(cx->ks2, (BYTE *)plaintext, (BYTE *)plaintext);
1e5118fa0cb1 This is NSS with a Cmake Buildsyste
Andre Heinecke <andre.heinecke@intevation.de>
parents:
diff changeset
146 plaintext[0] ^= oldciphertext[0];
1e5118fa0cb1 This is NSS with a Cmake Buildsyste
Andre Heinecke <andre.heinecke@intevation.de>
parents:
diff changeset
147 plaintext[1] ^= oldciphertext[1];
1e5118fa0cb1 This is NSS with a Cmake Buildsyste
Andre Heinecke <andre.heinecke@intevation.de>
parents:
diff changeset
148 COPY8BFROMHALF(out, plaintext);
1e5118fa0cb1 This is NSS with a Cmake Buildsyste
Andre Heinecke <andre.heinecke@intevation.de>
parents:
diff changeset
149 out += 8;
1e5118fa0cb1 This is NSS with a Cmake Buildsyste
Andre Heinecke <andre.heinecke@intevation.de>
parents:
diff changeset
150 }
1e5118fa0cb1 This is NSS with a Cmake Buildsyste
Andre Heinecke <andre.heinecke@intevation.de>
parents:
diff changeset
151 }
1e5118fa0cb1 This is NSS with a Cmake Buildsyste
Andre Heinecke <andre.heinecke@intevation.de>
parents:
diff changeset
152
1e5118fa0cb1 This is NSS with a Cmake Buildsyste
Andre Heinecke <andre.heinecke@intevation.de>
parents:
diff changeset
153 DESContext *
1e5118fa0cb1 This is NSS with a Cmake Buildsyste
Andre Heinecke <andre.heinecke@intevation.de>
parents:
diff changeset
154 DES_AllocateContext(void)
1e5118fa0cb1 This is NSS with a Cmake Buildsyste
Andre Heinecke <andre.heinecke@intevation.de>
parents:
diff changeset
155 {
1e5118fa0cb1 This is NSS with a Cmake Buildsyste
Andre Heinecke <andre.heinecke@intevation.de>
parents:
diff changeset
156 return PORT_ZNew(DESContext);
1e5118fa0cb1 This is NSS with a Cmake Buildsyste
Andre Heinecke <andre.heinecke@intevation.de>
parents:
diff changeset
157 }
1e5118fa0cb1 This is NSS with a Cmake Buildsyste
Andre Heinecke <andre.heinecke@intevation.de>
parents:
diff changeset
158
1e5118fa0cb1 This is NSS with a Cmake Buildsyste
Andre Heinecke <andre.heinecke@intevation.de>
parents:
diff changeset
159 SECStatus
1e5118fa0cb1 This is NSS with a Cmake Buildsyste
Andre Heinecke <andre.heinecke@intevation.de>
parents:
diff changeset
160 DES_InitContext(DESContext *cx, const unsigned char *key, unsigned int keylen,
1e5118fa0cb1 This is NSS with a Cmake Buildsyste
Andre Heinecke <andre.heinecke@intevation.de>
parents:
diff changeset
161 const unsigned char *iv, int mode, unsigned int encrypt,
1e5118fa0cb1 This is NSS with a Cmake Buildsyste
Andre Heinecke <andre.heinecke@intevation.de>
parents:
diff changeset
162 unsigned int unused)
1e5118fa0cb1 This is NSS with a Cmake Buildsyste
Andre Heinecke <andre.heinecke@intevation.de>
parents:
diff changeset
163 {
1e5118fa0cb1 This is NSS with a Cmake Buildsyste
Andre Heinecke <andre.heinecke@intevation.de>
parents:
diff changeset
164 DESDirection opposite;
1e5118fa0cb1 This is NSS with a Cmake Buildsyste
Andre Heinecke <andre.heinecke@intevation.de>
parents:
diff changeset
165 if (!cx) {
1e5118fa0cb1 This is NSS with a Cmake Buildsyste
Andre Heinecke <andre.heinecke@intevation.de>
parents:
diff changeset
166 PORT_SetError(SEC_ERROR_INVALID_ARGS);
1e5118fa0cb1 This is NSS with a Cmake Buildsyste
Andre Heinecke <andre.heinecke@intevation.de>
parents:
diff changeset
167 return SECFailure;
1e5118fa0cb1 This is NSS with a Cmake Buildsyste
Andre Heinecke <andre.heinecke@intevation.de>
parents:
diff changeset
168 }
1e5118fa0cb1 This is NSS with a Cmake Buildsyste
Andre Heinecke <andre.heinecke@intevation.de>
parents:
diff changeset
169 cx->direction = encrypt ? DES_ENCRYPT : DES_DECRYPT;
1e5118fa0cb1 This is NSS with a Cmake Buildsyste
Andre Heinecke <andre.heinecke@intevation.de>
parents:
diff changeset
170 opposite = encrypt ? DES_DECRYPT : DES_ENCRYPT;
1e5118fa0cb1 This is NSS with a Cmake Buildsyste
Andre Heinecke <andre.heinecke@intevation.de>
parents:
diff changeset
171 switch (mode) {
1e5118fa0cb1 This is NSS with a Cmake Buildsyste
Andre Heinecke <andre.heinecke@intevation.de>
parents:
diff changeset
172 case NSS_DES: /* DES ECB */
1e5118fa0cb1 This is NSS with a Cmake Buildsyste
Andre Heinecke <andre.heinecke@intevation.de>
parents:
diff changeset
173 DES_MakeSchedule( cx->ks0, key, cx->direction);
1e5118fa0cb1 This is NSS with a Cmake Buildsyste
Andre Heinecke <andre.heinecke@intevation.de>
parents:
diff changeset
174 cx->worker = &DES_ECB;
1e5118fa0cb1 This is NSS with a Cmake Buildsyste
Andre Heinecke <andre.heinecke@intevation.de>
parents:
diff changeset
175 break;
1e5118fa0cb1 This is NSS with a Cmake Buildsyste
Andre Heinecke <andre.heinecke@intevation.de>
parents:
diff changeset
176
1e5118fa0cb1 This is NSS with a Cmake Buildsyste
Andre Heinecke <andre.heinecke@intevation.de>
parents:
diff changeset
177 case NSS_DES_EDE3: /* DES EDE ECB */
1e5118fa0cb1 This is NSS with a Cmake Buildsyste
Andre Heinecke <andre.heinecke@intevation.de>
parents:
diff changeset
178 cx->worker = &DES_EDE3_ECB;
1e5118fa0cb1 This is NSS with a Cmake Buildsyste
Andre Heinecke <andre.heinecke@intevation.de>
parents:
diff changeset
179 if (encrypt) {
1e5118fa0cb1 This is NSS with a Cmake Buildsyste
Andre Heinecke <andre.heinecke@intevation.de>
parents:
diff changeset
180 DES_MakeSchedule(cx->ks0, key, cx->direction);
1e5118fa0cb1 This is NSS with a Cmake Buildsyste
Andre Heinecke <andre.heinecke@intevation.de>
parents:
diff changeset
181 DES_MakeSchedule(cx->ks1, key + 8, opposite);
1e5118fa0cb1 This is NSS with a Cmake Buildsyste
Andre Heinecke <andre.heinecke@intevation.de>
parents:
diff changeset
182 DES_MakeSchedule(cx->ks2, key + 16, cx->direction);
1e5118fa0cb1 This is NSS with a Cmake Buildsyste
Andre Heinecke <andre.heinecke@intevation.de>
parents:
diff changeset
183 } else {
1e5118fa0cb1 This is NSS with a Cmake Buildsyste
Andre Heinecke <andre.heinecke@intevation.de>
parents:
diff changeset
184 DES_MakeSchedule(cx->ks2, key, cx->direction);
1e5118fa0cb1 This is NSS with a Cmake Buildsyste
Andre Heinecke <andre.heinecke@intevation.de>
parents:
diff changeset
185 DES_MakeSchedule(cx->ks1, key + 8, opposite);
1e5118fa0cb1 This is NSS with a Cmake Buildsyste
Andre Heinecke <andre.heinecke@intevation.de>
parents:
diff changeset
186 DES_MakeSchedule(cx->ks0, key + 16, cx->direction);
1e5118fa0cb1 This is NSS with a Cmake Buildsyste
Andre Heinecke <andre.heinecke@intevation.de>
parents:
diff changeset
187 }
1e5118fa0cb1 This is NSS with a Cmake Buildsyste
Andre Heinecke <andre.heinecke@intevation.de>
parents:
diff changeset
188 break;
1e5118fa0cb1 This is NSS with a Cmake Buildsyste
Andre Heinecke <andre.heinecke@intevation.de>
parents:
diff changeset
189
1e5118fa0cb1 This is NSS with a Cmake Buildsyste
Andre Heinecke <andre.heinecke@intevation.de>
parents:
diff changeset
190 case NSS_DES_CBC: /* DES CBC */
1e5118fa0cb1 This is NSS with a Cmake Buildsyste
Andre Heinecke <andre.heinecke@intevation.de>
parents:
diff changeset
191 COPY8BTOHALF(cx->iv, iv);
1e5118fa0cb1 This is NSS with a Cmake Buildsyste
Andre Heinecke <andre.heinecke@intevation.de>
parents:
diff changeset
192 cx->worker = encrypt ? &DES_CBCEn : &DES_CBCDe;
1e5118fa0cb1 This is NSS with a Cmake Buildsyste
Andre Heinecke <andre.heinecke@intevation.de>
parents:
diff changeset
193 DES_MakeSchedule(cx->ks0, key, cx->direction);
1e5118fa0cb1 This is NSS with a Cmake Buildsyste
Andre Heinecke <andre.heinecke@intevation.de>
parents:
diff changeset
194 break;
1e5118fa0cb1 This is NSS with a Cmake Buildsyste
Andre Heinecke <andre.heinecke@intevation.de>
parents:
diff changeset
195
1e5118fa0cb1 This is NSS with a Cmake Buildsyste
Andre Heinecke <andre.heinecke@intevation.de>
parents:
diff changeset
196 case NSS_DES_EDE3_CBC: /* DES EDE CBC */
1e5118fa0cb1 This is NSS with a Cmake Buildsyste
Andre Heinecke <andre.heinecke@intevation.de>
parents:
diff changeset
197 COPY8BTOHALF(cx->iv, iv);
1e5118fa0cb1 This is NSS with a Cmake Buildsyste
Andre Heinecke <andre.heinecke@intevation.de>
parents:
diff changeset
198 if (encrypt) {
1e5118fa0cb1 This is NSS with a Cmake Buildsyste
Andre Heinecke <andre.heinecke@intevation.de>
parents:
diff changeset
199 cx->worker = &DES_EDE3CBCEn;
1e5118fa0cb1 This is NSS with a Cmake Buildsyste
Andre Heinecke <andre.heinecke@intevation.de>
parents:
diff changeset
200 DES_MakeSchedule(cx->ks0, key, cx->direction);
1e5118fa0cb1 This is NSS with a Cmake Buildsyste
Andre Heinecke <andre.heinecke@intevation.de>
parents:
diff changeset
201 DES_MakeSchedule(cx->ks1, key + 8, opposite);
1e5118fa0cb1 This is NSS with a Cmake Buildsyste
Andre Heinecke <andre.heinecke@intevation.de>
parents:
diff changeset
202 DES_MakeSchedule(cx->ks2, key + 16, cx->direction);
1e5118fa0cb1 This is NSS with a Cmake Buildsyste
Andre Heinecke <andre.heinecke@intevation.de>
parents:
diff changeset
203 } else {
1e5118fa0cb1 This is NSS with a Cmake Buildsyste
Andre Heinecke <andre.heinecke@intevation.de>
parents:
diff changeset
204 cx->worker = &DES_EDE3CBCDe;
1e5118fa0cb1 This is NSS with a Cmake Buildsyste
Andre Heinecke <andre.heinecke@intevation.de>
parents:
diff changeset
205 DES_MakeSchedule(cx->ks2, key, cx->direction);
1e5118fa0cb1 This is NSS with a Cmake Buildsyste
Andre Heinecke <andre.heinecke@intevation.de>
parents:
diff changeset
206 DES_MakeSchedule(cx->ks1, key + 8, opposite);
1e5118fa0cb1 This is NSS with a Cmake Buildsyste
Andre Heinecke <andre.heinecke@intevation.de>
parents:
diff changeset
207 DES_MakeSchedule(cx->ks0, key + 16, cx->direction);
1e5118fa0cb1 This is NSS with a Cmake Buildsyste
Andre Heinecke <andre.heinecke@intevation.de>
parents:
diff changeset
208 }
1e5118fa0cb1 This is NSS with a Cmake Buildsyste
Andre Heinecke <andre.heinecke@intevation.de>
parents:
diff changeset
209 break;
1e5118fa0cb1 This is NSS with a Cmake Buildsyste
Andre Heinecke <andre.heinecke@intevation.de>
parents:
diff changeset
210
1e5118fa0cb1 This is NSS with a Cmake Buildsyste
Andre Heinecke <andre.heinecke@intevation.de>
parents:
diff changeset
211 default:
1e5118fa0cb1 This is NSS with a Cmake Buildsyste
Andre Heinecke <andre.heinecke@intevation.de>
parents:
diff changeset
212 PORT_SetError(SEC_ERROR_INVALID_ARGS);
1e5118fa0cb1 This is NSS with a Cmake Buildsyste
Andre Heinecke <andre.heinecke@intevation.de>
parents:
diff changeset
213 return SECFailure;
1e5118fa0cb1 This is NSS with a Cmake Buildsyste
Andre Heinecke <andre.heinecke@intevation.de>
parents:
diff changeset
214 }
1e5118fa0cb1 This is NSS with a Cmake Buildsyste
Andre Heinecke <andre.heinecke@intevation.de>
parents:
diff changeset
215 return SECSuccess;
1e5118fa0cb1 This is NSS with a Cmake Buildsyste
Andre Heinecke <andre.heinecke@intevation.de>
parents:
diff changeset
216 }
1e5118fa0cb1 This is NSS with a Cmake Buildsyste
Andre Heinecke <andre.heinecke@intevation.de>
parents:
diff changeset
217
1e5118fa0cb1 This is NSS with a Cmake Buildsyste
Andre Heinecke <andre.heinecke@intevation.de>
parents:
diff changeset
218 DESContext *
1e5118fa0cb1 This is NSS with a Cmake Buildsyste
Andre Heinecke <andre.heinecke@intevation.de>
parents:
diff changeset
219 DES_CreateContext(const BYTE * key, const BYTE *iv, int mode, PRBool encrypt)
1e5118fa0cb1 This is NSS with a Cmake Buildsyste
Andre Heinecke <andre.heinecke@intevation.de>
parents:
diff changeset
220 {
1e5118fa0cb1 This is NSS with a Cmake Buildsyste
Andre Heinecke <andre.heinecke@intevation.de>
parents:
diff changeset
221 DESContext *cx = PORT_ZNew(DESContext);
1e5118fa0cb1 This is NSS with a Cmake Buildsyste
Andre Heinecke <andre.heinecke@intevation.de>
parents:
diff changeset
222 SECStatus rv = DES_InitContext(cx, key, 0, iv, mode, encrypt, 0);
1e5118fa0cb1 This is NSS with a Cmake Buildsyste
Andre Heinecke <andre.heinecke@intevation.de>
parents:
diff changeset
223
1e5118fa0cb1 This is NSS with a Cmake Buildsyste
Andre Heinecke <andre.heinecke@intevation.de>
parents:
diff changeset
224 if (rv != SECSuccess) {
1e5118fa0cb1 This is NSS with a Cmake Buildsyste
Andre Heinecke <andre.heinecke@intevation.de>
parents:
diff changeset
225 PORT_ZFree(cx, sizeof *cx);
1e5118fa0cb1 This is NSS with a Cmake Buildsyste
Andre Heinecke <andre.heinecke@intevation.de>
parents:
diff changeset
226 cx = NULL;
1e5118fa0cb1 This is NSS with a Cmake Buildsyste
Andre Heinecke <andre.heinecke@intevation.de>
parents:
diff changeset
227 }
1e5118fa0cb1 This is NSS with a Cmake Buildsyste
Andre Heinecke <andre.heinecke@intevation.de>
parents:
diff changeset
228 return cx;
1e5118fa0cb1 This is NSS with a Cmake Buildsyste
Andre Heinecke <andre.heinecke@intevation.de>
parents:
diff changeset
229 }
1e5118fa0cb1 This is NSS with a Cmake Buildsyste
Andre Heinecke <andre.heinecke@intevation.de>
parents:
diff changeset
230
1e5118fa0cb1 This is NSS with a Cmake Buildsyste
Andre Heinecke <andre.heinecke@intevation.de>
parents:
diff changeset
231 void
1e5118fa0cb1 This is NSS with a Cmake Buildsyste
Andre Heinecke <andre.heinecke@intevation.de>
parents:
diff changeset
232 DES_DestroyContext(DESContext *cx, PRBool freeit)
1e5118fa0cb1 This is NSS with a Cmake Buildsyste
Andre Heinecke <andre.heinecke@intevation.de>
parents:
diff changeset
233 {
1e5118fa0cb1 This is NSS with a Cmake Buildsyste
Andre Heinecke <andre.heinecke@intevation.de>
parents:
diff changeset
234 if (cx) {
1e5118fa0cb1 This is NSS with a Cmake Buildsyste
Andre Heinecke <andre.heinecke@intevation.de>
parents:
diff changeset
235 memset(cx, 0, sizeof *cx);
1e5118fa0cb1 This is NSS with a Cmake Buildsyste
Andre Heinecke <andre.heinecke@intevation.de>
parents:
diff changeset
236 if (freeit)
1e5118fa0cb1 This is NSS with a Cmake Buildsyste
Andre Heinecke <andre.heinecke@intevation.de>
parents:
diff changeset
237 PORT_Free(cx);
1e5118fa0cb1 This is NSS with a Cmake Buildsyste
Andre Heinecke <andre.heinecke@intevation.de>
parents:
diff changeset
238 }
1e5118fa0cb1 This is NSS with a Cmake Buildsyste
Andre Heinecke <andre.heinecke@intevation.de>
parents:
diff changeset
239 }
1e5118fa0cb1 This is NSS with a Cmake Buildsyste
Andre Heinecke <andre.heinecke@intevation.de>
parents:
diff changeset
240
1e5118fa0cb1 This is NSS with a Cmake Buildsyste
Andre Heinecke <andre.heinecke@intevation.de>
parents:
diff changeset
241 SECStatus
1e5118fa0cb1 This is NSS with a Cmake Buildsyste
Andre Heinecke <andre.heinecke@intevation.de>
parents:
diff changeset
242 DES_Encrypt(DESContext *cx, BYTE *out, unsigned int *outLen,
1e5118fa0cb1 This is NSS with a Cmake Buildsyste
Andre Heinecke <andre.heinecke@intevation.de>
parents:
diff changeset
243 unsigned int maxOutLen, const BYTE *in, unsigned int inLen)
1e5118fa0cb1 This is NSS with a Cmake Buildsyste
Andre Heinecke <andre.heinecke@intevation.de>
parents:
diff changeset
244 {
1e5118fa0cb1 This is NSS with a Cmake Buildsyste
Andre Heinecke <andre.heinecke@intevation.de>
parents:
diff changeset
245
1e5118fa0cb1 This is NSS with a Cmake Buildsyste
Andre Heinecke <andre.heinecke@intevation.de>
parents:
diff changeset
246 if ((inLen % 8) != 0 || maxOutLen < inLen || !cx ||
1e5118fa0cb1 This is NSS with a Cmake Buildsyste
Andre Heinecke <andre.heinecke@intevation.de>
parents:
diff changeset
247 cx->direction != DES_ENCRYPT) {
1e5118fa0cb1 This is NSS with a Cmake Buildsyste
Andre Heinecke <andre.heinecke@intevation.de>
parents:
diff changeset
248 PORT_SetError(SEC_ERROR_INVALID_ARGS);
1e5118fa0cb1 This is NSS with a Cmake Buildsyste
Andre Heinecke <andre.heinecke@intevation.de>
parents:
diff changeset
249 return SECFailure;
1e5118fa0cb1 This is NSS with a Cmake Buildsyste
Andre Heinecke <andre.heinecke@intevation.de>
parents:
diff changeset
250 }
1e5118fa0cb1 This is NSS with a Cmake Buildsyste
Andre Heinecke <andre.heinecke@intevation.de>
parents:
diff changeset
251
1e5118fa0cb1 This is NSS with a Cmake Buildsyste
Andre Heinecke <andre.heinecke@intevation.de>
parents:
diff changeset
252 cx->worker(cx, out, in, inLen);
1e5118fa0cb1 This is NSS with a Cmake Buildsyste
Andre Heinecke <andre.heinecke@intevation.de>
parents:
diff changeset
253 if (outLen)
1e5118fa0cb1 This is NSS with a Cmake Buildsyste
Andre Heinecke <andre.heinecke@intevation.de>
parents:
diff changeset
254 *outLen = inLen;
1e5118fa0cb1 This is NSS with a Cmake Buildsyste
Andre Heinecke <andre.heinecke@intevation.de>
parents:
diff changeset
255 return SECSuccess;
1e5118fa0cb1 This is NSS with a Cmake Buildsyste
Andre Heinecke <andre.heinecke@intevation.de>
parents:
diff changeset
256 }
1e5118fa0cb1 This is NSS with a Cmake Buildsyste
Andre Heinecke <andre.heinecke@intevation.de>
parents:
diff changeset
257
1e5118fa0cb1 This is NSS with a Cmake Buildsyste
Andre Heinecke <andre.heinecke@intevation.de>
parents:
diff changeset
258 SECStatus
1e5118fa0cb1 This is NSS with a Cmake Buildsyste
Andre Heinecke <andre.heinecke@intevation.de>
parents:
diff changeset
259 DES_Decrypt(DESContext *cx, BYTE *out, unsigned int *outLen,
1e5118fa0cb1 This is NSS with a Cmake Buildsyste
Andre Heinecke <andre.heinecke@intevation.de>
parents:
diff changeset
260 unsigned int maxOutLen, const BYTE *in, unsigned int inLen)
1e5118fa0cb1 This is NSS with a Cmake Buildsyste
Andre Heinecke <andre.heinecke@intevation.de>
parents:
diff changeset
261 {
1e5118fa0cb1 This is NSS with a Cmake Buildsyste
Andre Heinecke <andre.heinecke@intevation.de>
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262
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263 if ((inLen % 8) != 0 || maxOutLen < inLen || !cx ||
1e5118fa0cb1 This is NSS with a Cmake Buildsyste
Andre Heinecke <andre.heinecke@intevation.de>
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264 cx->direction != DES_DECRYPT) {
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265 PORT_SetError(SEC_ERROR_INVALID_ARGS);
1e5118fa0cb1 This is NSS with a Cmake Buildsyste
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266 return SECFailure;
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Andre Heinecke <andre.heinecke@intevation.de>
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267 }
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268
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269 cx->worker(cx, out, in, inLen);
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270 if (outLen)
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271 *outLen = inLen;
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272 return SECSuccess;
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273 }
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