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1 /* |
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2 * Copyright (c) 2006-2009 Nokia Corporation and/or its subsidiary(-ies). |
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3 * All rights reserved. |
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4 * This component and the accompanying materials are made available |
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5 * under the terms of the License "Eclipse Public License v1.0" |
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6 * which accompanies this distribution, and is available |
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7 * at the URL "http://www.eclipse.org/legal/epl-v10.html". |
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8 * |
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9 * Initial Contributors: |
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10 * Nokia Corporation - initial contribution. |
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11 * |
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12 * Contributors: |
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13 * |
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14 * Description: |
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15 * hash shim implementation |
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16 * hash shim implementation |
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17 * |
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18 */ |
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19 |
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20 |
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21 /** |
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22 @file |
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23 */ |
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24 |
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25 #include "hashshim.h" |
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26 #include <cryptospi/cryptospidef.h> |
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27 #include <cryptospi/plugincharacteristics.h> |
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28 #include "keys.h" |
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29 |
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30 |
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31 using namespace CryptoSpi; |
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32 |
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33 // |
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34 // MD2 shim implementation |
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35 // |
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36 CMD2Shim* CMD2Shim::NewL() |
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37 { |
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38 CMD2Shim* self=CMD2Shim::NewLC(); |
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39 CleanupStack::Pop(); |
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40 return self; |
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41 } |
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42 |
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43 CMD2Shim* CMD2Shim::NewLC() |
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44 { |
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45 CMD2Shim* self=new(ELeave) CMD2Shim(); |
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46 CleanupStack::PushL(self); |
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47 self->ConstructL(); |
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48 return self; |
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49 } |
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50 |
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51 TInt CMD2Shim::Extension_(TUint aExtensionId, TAny*& a0, TAny* /*a1*/) |
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52 { |
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53 TInt ret(KErrNotSupported); |
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54 |
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55 if (KHashInterfaceUid.iUid==aExtensionId && iHashImpl) |
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56 { |
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57 a0=iHashImpl; |
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58 ret=KErrNone; |
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59 } |
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60 |
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61 return ret; |
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62 } |
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63 |
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64 CMD2Shim::CMD2Shim() |
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65 { |
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66 } |
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67 |
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68 CMD2Shim::~CMD2Shim() |
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69 { |
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70 delete iHashImpl; |
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71 } |
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72 |
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73 |
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74 void CMD2Shim::ConstructL() |
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75 { |
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76 CHashFactory::CreateHashL(iHashImpl, |
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77 KMd2Uid, |
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78 KHashModeUid, |
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79 NULL, NULL); |
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80 } |
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81 |
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82 CMessageDigest* CMD2Shim::CopyL() |
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83 { |
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84 CMD2Shim* copy=new(ELeave) CMD2Shim(); |
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85 CleanupStack::PushL(copy); |
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86 copy->iHashImpl=iHashImpl->CopyL(); |
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87 CleanupStack::Pop(); |
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88 return copy; |
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89 } |
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90 |
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91 CMessageDigest* CMD2Shim::ReplicateL() |
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92 { |
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93 CMD2Shim* copy=new(ELeave) CMD2Shim(); |
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94 CleanupStack::PushL(copy); |
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95 copy->iHashImpl=iHashImpl->ReplicateL(); |
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96 CleanupStack::Pop(); |
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97 return copy; |
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98 } |
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99 |
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100 |
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101 TInt CMD2Shim::BlockSize() |
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102 { |
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103 const TCharacteristics* ptr(NULL); |
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104 TRAPD(err, iHashImpl->GetCharacteristicsL(ptr);) |
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105 |
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106 if (err) |
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107 { |
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108 return ((err>0)? KErrGeneral : err); |
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109 } |
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110 const THashCharacteristics* hashPtr=static_cast<const THashCharacteristics*>(ptr); |
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111 return hashPtr->iBlockSize/8; |
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112 } |
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113 |
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114 TInt CMD2Shim::HashSize() |
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115 { |
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116 const TCharacteristics* ptr(NULL); |
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117 TRAPD(err, iHashImpl->GetCharacteristicsL(ptr);) |
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118 if (err) |
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119 { |
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120 return ((err>0)? KErrGeneral : err); |
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121 } |
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122 const THashCharacteristics* hashPtr=static_cast<const THashCharacteristics*>(ptr); |
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123 return hashPtr->iOutputSize/8; |
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124 } |
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125 |
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126 void CMD2Shim::Update(const TDesC8& aMessage) |
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127 { |
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128 iHashImpl->Update(aMessage); |
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129 } |
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130 |
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131 |
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132 TPtrC8 CMD2Shim::Final(const TDesC8& aMessage) |
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133 { |
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134 return iHashImpl->Final(aMessage); |
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135 } |
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136 |
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137 TPtrC8 CMD2Shim::Final() |
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138 { |
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139 TPtrC8 ptr(KNullDesC8()); |
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140 return iHashImpl->Final(ptr); |
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141 } |
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142 |
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143 void CMD2Shim::Reset() |
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144 { |
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145 iHashImpl->Reset(); |
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146 } |
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147 |
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148 |
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149 TPtrC8 CMD2Shim::Hash(const TDesC8& aMessage) |
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150 { |
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151 return iHashImpl->Hash(aMessage); |
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152 } |
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153 |
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154 // |
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155 // Implementation of MD5 shim |
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156 // |
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157 CMD5Shim* CMD5Shim::NewL() |
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158 { |
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159 CMD5Shim* self=CMD5Shim::NewLC(); |
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160 CleanupStack::Pop(); |
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161 return self; |
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162 } |
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163 |
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164 CMD5Shim* CMD5Shim::NewLC() |
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165 { |
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166 |
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167 CMD5Shim* self=new(ELeave) CMD5Shim(); |
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168 CleanupStack::PushL(self); |
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169 self->ConstructL(); |
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170 return self; |
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171 |
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172 } |
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173 |
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174 CMD5Shim::CMD5Shim() |
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175 { |
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176 } |
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177 |
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178 TInt CMD5Shim::Extension_(TUint aExtensionId, TAny*& a0, TAny* /*a1*/) |
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179 { |
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180 TInt ret(KErrNotSupported); |
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181 |
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182 if (KHashInterfaceUid.iUid==aExtensionId && iHashImpl) |
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183 { |
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184 a0=iHashImpl; |
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185 ret=KErrNone; |
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186 } |
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187 |
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188 return ret; |
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189 } |
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190 |
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191 CMD5Shim::~CMD5Shim() |
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192 { |
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193 delete iHashImpl; |
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194 } |
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195 |
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196 |
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197 void CMD5Shim::ConstructL() |
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198 { |
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199 CHashFactory::CreateHashL(iHashImpl, |
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200 KMd5Uid, |
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201 KHashModeUid, |
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202 NULL, |
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203 NULL); |
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204 } |
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205 |
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206 CMessageDigest* CMD5Shim::CopyL() |
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207 { |
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208 CMD5Shim* copy=new(ELeave) CMD5Shim(); |
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209 CleanupStack::PushL(copy); |
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210 copy->iHashImpl=iHashImpl->CopyL(); |
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211 CleanupStack::Pop(); |
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212 return copy; |
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213 } |
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214 |
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215 CMessageDigest* CMD5Shim::ReplicateL() |
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216 { |
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217 CMD5Shim* copy=new(ELeave) CMD5Shim(); |
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218 CleanupStack::PushL(copy); |
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219 copy->iHashImpl=iHashImpl->ReplicateL(); |
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220 CleanupStack::Pop(); |
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221 return copy; |
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222 } |
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223 |
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224 TInt CMD5Shim::BlockSize() |
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225 { |
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226 const TCharacteristics* ptr(NULL); |
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227 TRAPD(err, iHashImpl->GetCharacteristicsL(ptr);) |
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228 if (err) |
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229 { |
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230 return ((err>0)? KErrGeneral : err); |
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231 } |
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232 const THashCharacteristics* hashPtr=static_cast<const THashCharacteristics*>(ptr); |
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233 return hashPtr->iBlockSize/8; |
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234 } |
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235 |
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236 TInt CMD5Shim::HashSize() |
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237 { |
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238 const TCharacteristics* ptr(NULL); |
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239 TRAPD(err, iHashImpl->GetCharacteristicsL(ptr);) |
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240 if (err) |
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241 { |
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242 return ((err>0)? KErrGeneral : err); |
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243 } |
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244 const THashCharacteristics* hashPtr=static_cast<const THashCharacteristics*>(ptr); |
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245 return hashPtr->iOutputSize/8; |
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246 } |
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247 |
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248 void CMD5Shim::Update(const TDesC8& aMessage) |
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249 { |
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250 iHashImpl->Update(aMessage); |
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251 } |
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252 |
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253 TPtrC8 CMD5Shim::Final(const TDesC8& aMessage) |
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254 { |
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255 return iHashImpl->Final(aMessage); |
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256 } |
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257 |
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258 TPtrC8 CMD5Shim::Final() |
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259 { |
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260 TPtrC8 ptr(KNullDesC8()); |
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261 return iHashImpl->Final(ptr); |
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262 } |
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263 |
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264 void CMD5Shim::Reset() |
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265 { |
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266 iHashImpl->Reset(); |
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267 } |
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268 |
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269 |
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270 TPtrC8 CMD5Shim::Hash(const TDesC8& aMessage) |
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271 { |
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272 return iHashImpl->Hash(aMessage); |
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273 } |
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274 |
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275 // |
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276 // Implementation of SHA1 shim |
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277 // |
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278 |
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279 CSHA1Shim* CSHA1Shim::NewL() |
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280 { |
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281 CSHA1Shim* self=CSHA1Shim::NewLC(); |
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282 CleanupStack::Pop(); |
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283 return self; |
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284 } |
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285 |
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286 CSHA1Shim* CSHA1Shim::NewLC() |
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287 { |
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288 |
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289 CSHA1Shim* self=new(ELeave) CSHA1Shim(); |
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290 CleanupStack::PushL(self); |
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291 self->ConstructL(); |
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292 return self; |
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293 |
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294 } |
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295 |
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296 CSHA1Shim::CSHA1Shim() |
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297 { |
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298 } |
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299 |
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300 |
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301 TInt CSHA1Shim::Extension_(TUint aExtensionId, TAny*& a0, TAny* /*a1*/) |
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302 { |
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303 TInt ret(KErrNotSupported); |
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304 |
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305 if (KHashInterfaceUid.iUid==aExtensionId && iHashImpl) |
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306 { |
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307 a0=iHashImpl; |
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308 ret=KErrNone; |
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309 } |
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310 |
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311 return ret; |
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312 } |
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313 |
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314 CSHA1Shim::~CSHA1Shim() |
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315 { |
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316 delete iHashImpl; |
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317 } |
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318 |
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319 |
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320 void CSHA1Shim::ConstructL() |
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321 { |
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322 CHashFactory::CreateHashL(iHashImpl, |
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323 KSha1Uid, |
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324 KHashModeUid, |
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325 NULL, |
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326 NULL); |
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327 } |
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328 |
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329 CMessageDigest* CSHA1Shim::CopyL() |
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330 { |
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331 CSHA1Shim* copy=new(ELeave) CSHA1Shim(); |
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332 CleanupStack::PushL(copy); |
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333 copy->iHashImpl=iHashImpl->CopyL(); |
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334 CleanupStack::Pop(); |
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335 return copy; |
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336 } |
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337 |
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338 CMessageDigest* CSHA1Shim::ReplicateL() |
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339 { |
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340 CSHA1Shim* copy=new(ELeave) CSHA1Shim(); |
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341 CleanupStack::PushL(copy); |
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342 copy->iHashImpl=iHashImpl->ReplicateL(); |
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343 CleanupStack::Pop(); |
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344 return copy; |
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345 } |
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346 |
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347 TInt CSHA1Shim::BlockSize() |
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348 { |
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349 const TCharacteristics* ptr(NULL); |
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350 TRAPD(err, iHashImpl->GetCharacteristicsL(ptr);) |
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351 if (err) |
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352 { |
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353 return ((err>0)? KErrGeneral : err); |
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354 } |
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355 const THashCharacteristics* hashPtr=static_cast<const THashCharacteristics*>(ptr); |
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356 return hashPtr->iBlockSize/8; |
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357 } |
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358 |
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359 TInt CSHA1Shim::HashSize() |
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360 { |
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361 const TCharacteristics* ptr(NULL); |
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362 TRAPD(err, iHashImpl->GetCharacteristicsL(ptr);) |
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363 if (err) |
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364 { |
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365 return ((err>0)? KErrGeneral : err); |
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366 } |
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367 const THashCharacteristics* hashPtr=static_cast<const THashCharacteristics*>(ptr); |
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368 return hashPtr->iOutputSize/8; |
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369 } |
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370 |
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371 void CSHA1Shim::Update(const TDesC8& aMessage) |
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372 { |
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373 iHashImpl->Update(aMessage); |
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374 } |
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375 |
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376 TPtrC8 CSHA1Shim::Final(const TDesC8& aMessage) |
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377 { |
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378 return iHashImpl->Final(aMessage); |
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379 } |
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380 |
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381 TPtrC8 CSHA1Shim::Final() |
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382 { |
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383 TPtrC8 ptr(KNullDesC8()); |
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384 return iHashImpl->Final(ptr); |
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385 } |
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386 |
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387 void CSHA1Shim::Reset() |
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388 { |
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389 iHashImpl->Reset(); |
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390 } |
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391 |
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392 TPtrC8 CSHA1Shim::Hash(const TDesC8& aMessage) |
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393 { |
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394 return iHashImpl->Hash(aMessage); |
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395 } |
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396 |
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397 |
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398 // |
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399 // Implementation of SHA2 shim |
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400 // |
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401 |
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402 CSHA2Shim* CSHA2Shim::NewL(TSH2Algo aAlgorithmId) |
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403 { |
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404 CSHA2Shim* self=CSHA2Shim::NewLC(aAlgorithmId); |
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405 CleanupStack::Pop(); |
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406 return self; |
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407 } |
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408 |
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409 CSHA2Shim* CSHA2Shim::NewLC(TSH2Algo aAlgorithmId) |
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410 { |
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411 |
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412 CSHA2Shim* self=new(ELeave) CSHA2Shim(); |
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413 CleanupStack::PushL(self); |
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414 self->ConstructL(aAlgorithmId); |
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415 return self; |
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416 } |
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417 |
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418 CSHA2Shim::CSHA2Shim() |
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419 { |
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420 } |
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421 |
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422 TInt CSHA2Shim::Extension_(TUint aExtensionId, TAny*& a0, TAny* /*a1*/) |
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423 { |
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424 TInt ret(KErrNotSupported); |
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425 |
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426 if (KHashInterfaceUid.iUid==aExtensionId && iHashImpl) |
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427 { |
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428 a0=iHashImpl; |
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429 ret=KErrNone; |
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430 } |
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431 return ret; |
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432 } |
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433 |
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434 CSHA2Shim::~CSHA2Shim() |
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435 { |
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436 delete iHashImpl; |
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437 } |
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438 |
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439 void CSHA2Shim::ConstructL(TSH2Algo aAlgorithmId) |
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440 { |
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441 TUid algoId = {0}; |
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442 switch(aAlgorithmId) |
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443 { |
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444 case E224Bit: |
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445 { |
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446 algoId = KSha224Uid; |
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447 break; |
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448 } |
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449 case E256Bit: |
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450 { |
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451 algoId = KSha256Uid; |
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452 break; |
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453 } |
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454 case E384Bit: |
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455 { |
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456 algoId = KSha384Uid; |
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457 break; |
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458 } |
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459 case E512Bit: |
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460 { |
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461 algoId = KSha512Uid; |
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462 break; |
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463 } |
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464 default: |
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465 User::Leave(KErrNotSupported); |
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466 } |
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467 |
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468 CHashFactory::CreateHashL(iHashImpl, |
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469 algoId, |
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470 KHashModeUid, |
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471 NULL, |
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472 NULL); |
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473 } |
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474 |
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475 CMessageDigest* CSHA2Shim::CopyL() |
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476 { |
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477 CSHA2Shim* copy=new(ELeave) CSHA2Shim(); |
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478 CleanupStack::PushL(copy); |
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479 copy->iHashImpl=iHashImpl->CopyL(); |
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480 CleanupStack::Pop(); |
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481 return copy; |
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482 } |
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483 |
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484 CMessageDigest* CSHA2Shim::ReplicateL() |
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485 { |
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486 CSHA2Shim* copy=new(ELeave) CSHA2Shim(); |
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487 CleanupStack::PushL(copy); |
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488 copy->iHashImpl=iHashImpl->ReplicateL(); |
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489 CleanupStack::Pop(); |
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490 return copy; |
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491 } |
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492 |
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493 TInt CSHA2Shim::BlockSize() |
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494 { |
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495 const TCharacteristics* ptr(NULL); |
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496 TRAPD(err, iHashImpl->GetCharacteristicsL(ptr);) |
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497 if (err) |
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498 { |
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499 return ((err>0)? KErrGeneral : err); |
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500 } |
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501 const THashCharacteristics* hashPtr=static_cast<const THashCharacteristics*>(ptr); |
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502 return hashPtr->iBlockSize/8; |
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503 } |
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504 |
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505 TInt CSHA2Shim::HashSize() |
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506 { |
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507 const TCharacteristics* ptr(NULL); |
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508 TRAPD(err, iHashImpl->GetCharacteristicsL(ptr);) |
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509 if (err) |
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510 { |
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511 return ((err>0)? KErrGeneral : err); |
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512 } |
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513 const THashCharacteristics* hashPtr=static_cast<const THashCharacteristics*>(ptr); |
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514 return hashPtr->iOutputSize/8; |
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515 } |
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516 |
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517 void CSHA2Shim::Update(const TDesC8& aMessage) |
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518 { |
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519 iHashImpl->Update(aMessage); |
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520 } |
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521 |
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522 TPtrC8 CSHA2Shim::Final(const TDesC8& aMessage) |
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523 { |
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524 return iHashImpl->Final(aMessage); |
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525 } |
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526 |
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527 TPtrC8 CSHA2Shim::Final() |
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528 { |
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529 TPtrC8 ptr(KNullDesC8()); |
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530 return iHashImpl->Final(ptr); |
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531 } |
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532 |
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533 void CSHA2Shim::Reset() |
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534 { |
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535 iHashImpl->Reset(); |
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536 } |
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537 |
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538 TPtrC8 CSHA2Shim::Hash(const TDesC8& aMessage) |
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539 { |
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540 return iHashImpl->Hash(aMessage); |
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541 } |
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542 |
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543 // |
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544 // Implementation of HMAC shim |
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545 // |
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546 |
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547 CHMACShim* CHMACShim::NewL(const TDesC8& aKey, CMessageDigest* aDigest) |
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548 { |
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549 CHMACShim* self(0); |
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550 |
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551 // Check whether the hash contains an SPI plug-in |
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552 TAny* implPtr(0); |
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553 TInt err = aDigest->GetExtension(CryptoSpi::KHashInterface, implPtr, NULL); |
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554 if (err == KErrNone && implPtr) |
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555 { |
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556 CryptoSpi::CHash* impl(static_cast<CryptoSpi::CHash*>(implPtr)); |
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557 const CryptoSpi::TCharacteristics* c(0); |
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558 impl->GetCharacteristicsL(c); |
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559 const CryptoSpi::THashCharacteristics* hashCharacteristics(static_cast<const CryptoSpi::THashCharacteristics*>(c)); |
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560 |
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561 |
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562 // Verify that the plug-in supports Hmac mode |
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563 if (hashCharacteristics->IsOperationModeSupported(CryptoSpi::KHmacModeUid)) |
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564 { |
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565 |
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566 #ifndef SYMBIAN_SDP_IPSEC_VOIP_SUPPORT |
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567 // Make an own copy |
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568 CHash* myHash=impl->ReplicateL(); |
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569 CleanupStack::PushL(myHash); |
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570 #endif |
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571 // Set the key |
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572 TKeyProperty keyProperty = {KHmacModeUid, KNullUid, KSymmetricKey, KNonEmbeddedKeyUid}; |
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573 CCryptoParams* keyParam =CCryptoParams::NewLC(); |
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574 keyParam->AddL(aKey, KHmacKeyParameterUid); |
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575 CKey* uniKey= CKey::NewLC(keyProperty, *keyParam); |
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576 #ifndef SYMBIAN_SDP_IPSEC_VOIP_SUPPORT |
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577 myHash->SetKeyL(*uniKey); |
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578 CleanupStack::PopAndDestroy(2, keyParam); |
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579 // Set hash to Hmac mode |
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580 myHash->SetOperationModeL(CryptoSpi::KHmacModeUid); |
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581 self = new(ELeave) CHMACShim(myHash, aDigest); |
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582 CleanupStack::Pop(myHash); |
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583 #else |
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584 TUid algorithmUID = algorithmUID.Uid(hashCharacteristics->cmn.iAlgorithmUID); |
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585 //Create a pointer for the Mac Implementation Object |
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586 CMac* macImpl = NULL; |
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587 CMacFactory::CreateMacL(macImpl,algorithmUID,*uniKey, NULL); |
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588 CleanupStack::PushL(macImpl); |
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589 self = new(ELeave) CHMACShim(macImpl, aDigest,uniKey, algorithmUID); |
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590 CleanupStack::Pop(macImpl); |
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591 CleanupStack::Pop(uniKey); |
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592 CleanupStack::PopAndDestroy(keyParam); |
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593 #endif |
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594 } |
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595 } |
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596 return self; |
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597 } |
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598 |
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599 #ifdef SYMBIAN_SDP_IPSEC_VOIP_SUPPORT |
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600 |
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601 CHMACShim::CHMACShim(CryptoSpi::CMac* aImpl, CMessageDigest* aDigest, CryptoSpi::CKey* aKey, TUid aAlgorithmUid) |
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602 : CHMAC(aDigest), iMacImpl(aImpl), iKey(aKey), iAlgorithmUid(aAlgorithmUid) |
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603 { |
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604 } |
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605 |
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606 #else |
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607 |
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608 CHMACShim::CHMACShim(CryptoSpi::CHash* aImpl, CMessageDigest* aDigest) |
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609 : CHMAC(aDigest), iMacImpl(aImpl) |
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610 { |
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611 } |
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612 |
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613 #endif |
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614 |
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615 CHMACShim::CHMACShim() |
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616 { |
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617 } |
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618 |
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619 CHMACShim::~CHMACShim() |
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620 { |
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621 delete iMacImpl; |
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622 #ifdef SYMBIAN_SDP_IPSEC_VOIP_SUPPORT |
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623 delete iKey; |
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624 #endif |
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625 } |
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626 |
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627 TInt CHMACShim::BlockSize() |
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628 { |
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629 const TCharacteristics* ptr(NULL); |
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630 TRAPD(err, iMacImpl->GetCharacteristicsL(ptr)); |
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631 |
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632 if (err) |
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633 { |
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634 return ((err>0)? KErrGeneral : err); |
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635 } |
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636 |
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637 #ifndef SYMBIAN_SDP_IPSEC_VOIP_SUPPORT |
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638 const THashCharacteristics* hashPtr=static_cast<const THashCharacteristics*>(ptr); |
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639 return hashPtr->iBlockSize/8; |
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640 #else |
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641 const TMacCharacteristics* macPtr=static_cast<const TMacCharacteristics*>(ptr); |
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642 return macPtr->iHashAlgorithmChar->iBlockSize/8; |
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643 #endif |
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644 } |
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645 |
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646 TInt CHMACShim::HashSize() |
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647 { |
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648 const TCharacteristics* ptr(NULL); |
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649 TRAPD(err, iMacImpl->GetCharacteristicsL(ptr)); |
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650 if (err) |
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651 { |
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652 return ((err>0)? KErrGeneral : err); |
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653 } |
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654 |
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655 #ifndef SYMBIAN_SDP_IPSEC_VOIP_SUPPORT |
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656 const THashCharacteristics* hashPtr=static_cast<const THashCharacteristics*>(ptr); |
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657 return hashPtr->iOutputSize/8; |
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658 #else |
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659 const TMacCharacteristics* macPtr=static_cast<const TMacCharacteristics*>(ptr); |
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660 return macPtr->iHashAlgorithmChar->iOutputSize/8; |
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661 #endif |
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662 } |
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663 |
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664 void CHMACShim::Update(const TDesC8& aMessage) |
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665 { |
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666 #ifdef SYMBIAN_SDP_IPSEC_VOIP_SUPPORT |
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667 // The error is ignored as the legacy code methods are non-leaving and they call |
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668 // the new MAC interfaces which uses leaving methods for processing MAC value. |
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669 // This call always call the non-leaving legacy method. |
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670 TRAP_IGNORE(iMacImpl->UpdateL(aMessage)); |
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671 #else |
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672 iMacImpl->Update(aMessage); |
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673 #endif |
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674 } |
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675 |
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676 TPtrC8 CHMACShim::Final(const TDesC8& aMessage) |
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677 { |
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678 #ifdef SYMBIAN_SDP_IPSEC_VOIP_SUPPORT |
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679 TPtrC8 macPtr(KNullDesC8()); |
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680 // The error is ignored as the legacy code methods are non-leaving and they call |
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681 // the new MAC interfaces which uses leaving methods for processing MAC value. |
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682 // This call always call the non-leaving legacy method. |
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683 TRAP_IGNORE(macPtr.Set(iMacImpl->FinalL(aMessage))); |
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684 return macPtr; |
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685 #else |
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686 return iMacImpl->Final(aMessage); |
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687 #endif |
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688 } |
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689 |
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690 TPtrC8 CHMACShim::Final() |
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691 { |
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692 TPtrC8 ptr(KNullDesC8()); |
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693 #ifdef SYMBIAN_SDP_IPSEC_VOIP_SUPPORT |
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694 TPtrC8 macPtr(KNullDesC8()); |
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695 // The error is ignored as the legacy code methods are non-leaving and they call |
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696 // the new MAC interfaces which uses leaving methods for processing MAC value. |
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697 // This call always call the non-leaving legacy method. |
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698 TRAP_IGNORE(macPtr.Set(iMacImpl->FinalL(ptr))); |
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699 return macPtr; |
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700 #else |
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701 return iMacImpl->Final(ptr); |
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702 #endif |
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703 } |
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704 |
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705 void CHMACShim::Reset() |
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706 { |
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707 iMacImpl->Reset(); |
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708 } |
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709 |
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710 TPtrC8 CHMACShim::Hash(const TDesC8& aMessage) |
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711 { |
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712 #ifdef SYMBIAN_SDP_IPSEC_VOIP_SUPPORT |
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713 TPtrC8 macPtr(KNullDesC8()); |
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714 // The error is ignored as the legacy code methods are non-leaving and they call |
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715 // the new MAC interfaces which uses leaving methods for processing MAC value. |
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716 // This call always call the non-leaving legacy method. |
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717 TRAP_IGNORE(macPtr.Set(iMacImpl->MacL(aMessage))); |
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718 return macPtr; |
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719 #else |
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720 return iMacImpl->Hash(aMessage); |
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721 #endif |
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722 } |
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723 |
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724 CMessageDigest* CHMACShim::ReplicateL() |
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725 { |
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726 CHMACShim* copy=new(ELeave) CHMACShim(); |
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727 CleanupStack::PushL(copy); |
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728 copy->iMacImpl=iMacImpl->ReplicateL(); |
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729 CleanupStack::Pop(copy); |
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730 return copy; |
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731 } |
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732 |
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733 CMessageDigest* CHMACShim::CopyL() |
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734 { |
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735 CHMACShim* copy=new(ELeave) CHMACShim(); |
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736 CleanupStack::PushL(copy); |
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737 copy->iMacImpl=iMacImpl->CopyL(); |
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738 CleanupStack::Pop(copy); |
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739 return copy; |
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740 } |
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741 |
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742 // |
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743 // Implemetation of MD4 shim |
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744 // |
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745 CMD4Shim* CMD4Shim::NewL() |
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746 { |
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747 CMD4Shim* self=CMD4Shim::NewLC(); |
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748 CleanupStack::Pop(); |
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749 return self; |
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750 } |
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751 |
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752 CMD4Shim* CMD4Shim::NewLC() |
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753 { |
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754 CMD4Shim* self=new(ELeave) CMD4Shim(); |
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755 CleanupStack::PushL(self); |
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756 self->ConstructL(); |
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757 return self; |
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758 } |
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759 |
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760 CMD4Shim::CMD4Shim() |
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761 { |
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762 } |
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763 |
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764 TInt CMD4Shim::Extension_(TUint aExtensionId, TAny*& a0, TAny* /*a1*/) |
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765 { |
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766 TInt ret(KErrNotSupported); |
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767 |
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768 if (KHashInterfaceUid.iUid==aExtensionId && iHashImpl) |
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769 { |
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770 a0=iHashImpl; |
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771 ret=KErrNone; |
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772 } |
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773 |
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774 return ret; |
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775 } |
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776 |
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777 CMD4Shim::~CMD4Shim() |
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778 { |
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779 delete iHashImpl; |
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780 } |
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781 |
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782 |
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783 void CMD4Shim::ConstructL() |
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784 { |
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785 CHashFactory::CreateHashL(iHashImpl,KMd4Uid,KHashModeUid,NULL,NULL); |
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786 } |
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787 |
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788 CMessageDigest* CMD4Shim::CopyL() |
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789 { |
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790 CMD4Shim* copy=new(ELeave) CMD4Shim(); |
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791 CleanupStack::PushL(copy); |
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792 copy->iHashImpl=iHashImpl->CopyL(); |
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793 CleanupStack::Pop(); |
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794 return copy; |
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795 } |
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796 |
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797 CMessageDigest* CMD4Shim::ReplicateL() |
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798 { |
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799 CMD4Shim* copy=new(ELeave) CMD4Shim(); |
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800 CleanupStack::PushL(copy); |
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801 copy->iHashImpl=iHashImpl->ReplicateL(); |
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802 CleanupStack::Pop(); |
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803 return copy; |
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804 } |
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805 |
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806 TInt CMD4Shim::BlockSize() |
|
807 { |
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808 const TCharacteristics* ptr(NULL); |
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809 TRAPD(err, iHashImpl->GetCharacteristicsL(ptr);) |
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810 if (err) |
|
811 { |
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812 return ((err>0)? KErrGeneral : err); |
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813 } |
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814 const THashCharacteristics* hashPtr=static_cast<const THashCharacteristics*>(ptr); |
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815 return hashPtr->iBlockSize/8; |
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816 } |
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817 |
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818 TInt CMD4Shim::HashSize() |
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819 { |
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820 const TCharacteristics* ptr(NULL); |
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821 TRAPD(err, iHashImpl->GetCharacteristicsL(ptr);) |
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822 if (err) |
|
823 { |
|
824 return ((err>0)? KErrGeneral : err); |
|
825 } |
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826 const THashCharacteristics* hashPtr=static_cast<const THashCharacteristics*>(ptr); |
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827 return hashPtr->iOutputSize/8; |
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828 } |
|
829 |
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830 void CMD4Shim::Update(const TDesC8& aMessage) |
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831 { |
|
832 iHashImpl->Update(aMessage); |
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833 } |
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834 |
|
835 TPtrC8 CMD4Shim::Final(const TDesC8& aMessage) |
|
836 { |
|
837 return iHashImpl->Final(aMessage); |
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838 } |
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839 |
|
840 TPtrC8 CMD4Shim::Final() |
|
841 { |
|
842 TPtrC8 ptr(KNullDesC8()); |
|
843 return iHashImpl->Final(ptr); |
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844 } |
|
845 |
|
846 void CMD4Shim::Reset() |
|
847 { |
|
848 iHashImpl->Reset(); |
|
849 } |
|
850 |
|
851 |
|
852 TPtrC8 CMD4Shim::Hash(const TDesC8& aMessage) |
|
853 { |
|
854 return iHashImpl->Hash(aMessage); |
|
855 } |
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856 |