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1 /* |
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2 * Copyright (c) 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 * |
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16 */ |
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17 |
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18 |
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19 #include "dummyeccimpl.h" |
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20 |
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21 #include <e32def.h> |
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22 #include <cryptospi/cryptospidef.h> |
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23 #include "keys.h" |
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24 #include <cryptospi/plugincharacteristics.h> |
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25 #include "pluginconfig.h" |
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26 #include "cryptospihai.h" |
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27 |
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28 using namespace DummyEccHwCrypto; |
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29 using namespace CryptoSpiHai; |
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30 |
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31 /** |
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32 * These are just randomly selected numbers. There is no logic behind |
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33 * their values. |
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34 */ |
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35 const TInt KMaxOutputLength = 50; |
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36 const TInt KMaxInputLength = 50; |
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37 |
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38 CDummyECCCipherImpl* CDummyECCCipherImpl::NewL(const CKey& aKey, |
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39 TUid aCryptoMode, TUid aPaddingMode) |
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40 { |
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41 CDummyECCCipherImpl* self = CDummyECCCipherImpl::NewLC(aKey, aCryptoMode, |
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42 aPaddingMode); |
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43 CleanupStack::Pop(self); |
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44 return self; |
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45 } |
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46 |
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47 CDummyECCCipherImpl* CDummyECCCipherImpl::NewLC(const CKey& aKey, |
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48 TUid aCryptoMode, TUid aPaddingMode) |
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49 { |
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50 CDummyECCCipherImpl* self = new (ELeave) CDummyECCCipherImpl(aCryptoMode, |
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51 aPaddingMode); |
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52 CleanupStack::PushL(self); |
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53 self->ConstructL(aKey); |
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54 return self; |
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55 } |
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56 |
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57 CDummyECCCipherImpl::CDummyECCCipherImpl(TUid aCryptoMode, TUid aPaddingMode) : |
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58 iCryptoMode(aCryptoMode), iPaddingMode(aPaddingMode) |
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59 { |
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60 } |
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61 |
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62 void CDummyECCCipherImpl::ConstructL(const CKey& aKey) |
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63 { |
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64 SetKeyL(aKey); |
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65 } |
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66 |
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67 // MPlugin Interface Start |
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68 void CDummyECCCipherImpl::Close() |
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69 { |
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70 delete this; |
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71 } |
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72 |
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73 void CDummyECCCipherImpl::Reset() |
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74 { |
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75 } |
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76 |
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77 void CDummyECCCipherImpl::GetCharacteristicsL( |
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78 const TCharacteristics*& aPluginCharacteristics) |
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79 { |
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80 TInt numCiphers = sizeof(KAsymmetricCipherCharacteristics) |
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81 / sizeof(TAsymmetricCipherCharacteristics*); |
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82 TInt32 implUid = ImplementationUid().iUid; |
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83 for (TInt i = 0; i < numCiphers; ++i) |
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84 { |
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85 if (KAsymmetricCipherCharacteristics[i]->cmn.iImplementationUID |
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86 == implUid) |
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87 { |
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88 aPluginCharacteristics = KAsymmetricCipherCharacteristics[i]; |
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89 break; |
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90 } |
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91 } |
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92 } |
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93 |
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94 const CExtendedCharacteristics* CDummyECCCipherImpl::GetExtendedCharacteristicsL() |
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95 { |
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96 // All Symbian software plug-ins have unlimited concurrency, cannot be reserved |
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97 // for exclusive use and are not CERTIFIED to be standards compliant. |
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98 return CExtendedCharacteristics::NewL(KMaxTInt, EFalse); |
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99 } |
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100 |
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101 TAny* CDummyECCCipherImpl::GetExtension(TUid /* aExtensionId */) |
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102 { |
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103 return 0; |
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104 } |
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105 // End of MPlugin Interface |
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106 |
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107 // MAsymmetricCipherBase Interface |
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108 void CDummyECCCipherImpl::SetKeyL(const CKey& aKey) |
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109 { |
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110 // delete any previous key and recreate the key |
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111 delete iKey; |
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112 iKey = NULL; |
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113 iKey = CKey::NewL(aKey); |
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114 } |
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115 |
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116 void CDummyECCCipherImpl::SetCryptoModeL(TUid aCryptoMode) |
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117 { |
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118 switch (aCryptoMode.iUid) |
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119 { |
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120 case KCryptoModeEncrypt: |
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121 case KCryptoModeDecrypt: |
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122 break; |
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123 default: |
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124 User::Leave(KErrNotSupported); |
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125 } |
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126 iCryptoMode = aCryptoMode; |
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127 } |
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128 |
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129 void CDummyECCCipherImpl::SetPaddingModeL(TUid /* aPaddingMode */) |
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130 { |
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131 User::Leave(KErrNotSupported); |
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132 } |
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133 |
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134 TInt CDummyECCCipherImpl::GetMaximumInputLengthL() const |
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135 { |
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136 return KMaxInputLength; |
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137 } |
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138 |
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139 TInt CDummyECCCipherImpl::GetMaximumOutputLengthL() const |
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140 { |
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141 return KMaxOutputLength; |
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142 } |
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143 // End of MAsymmetricCipherBase Interface |
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144 |
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145 // MAsymmetricCipher Interface |
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146 void CDummyECCCipherImpl::ProcessL(const TDesC8& aInput, TDes8& aOutput) |
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147 { |
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148 if (iCryptoMode.iUid == KCryptoModeEncrypt) |
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149 { |
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150 EncryptL(aInput, aOutput); |
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151 } |
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152 else |
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153 { |
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154 DecryptL(aInput, aOutput); |
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155 } |
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156 } |
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157 |
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158 TUid CDummyECCCipherImpl::ImplementationUid() const |
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159 { |
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160 return KCryptoPluginEccCipherUid; |
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161 } |
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162 |
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163 CDummyECCCipherImpl::~CDummyECCCipherImpl() |
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164 { |
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165 delete iKey; |
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166 } |
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167 |
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168 void CDummyECCCipherImpl::EncryptL(const TDesC8& /* aInput */, TDes8& /* aOuput */) |
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169 { |
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170 User::Leave(KErrNotSupported); |
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171 } |
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172 |
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173 void CDummyECCCipherImpl::DecryptL(const TDesC8& aInput, TDes8& aOutput) |
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174 { |
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175 if (iKey->IsPresent(KPassedHandleToKeyUid)) |
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176 { |
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177 const TInt& keyHandle = iKey->GetTIntL(KPassedHandleToKeyUid); |
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178 |
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179 // Invoke the Spi HAI to perform the operation |
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180 CCryptoSpiHai::DecryptL(keyHandle, aInput, aOutput); |
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181 } |
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182 else |
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183 { |
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184 User::Leave(KErrNotSupported); |
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185 } |
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186 } |
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187 // End of file |
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188 |
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189 |