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1 /* |
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2 * Copyright (c) 2007-2009 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 /** |
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20 @file |
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21 */ |
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22 |
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23 #include <e32std.h> |
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24 #include <hash.h> |
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25 #include "hashinc.h" |
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26 #define EXPANDLOOP |
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27 |
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28 |
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29 CMD4::CMD4(void) |
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30 : CMessageDigest(),iHash(MD4_HASH) |
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31 { |
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32 } |
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33 |
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34 CMD4::CMD4(const CMD4& aMD) |
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35 : CMessageDigest(aMD), |
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36 iHash(aMD.iHash),iA(aMD.iA),iB(aMD.iB),iC(aMD.iC),iD(aMD.iD), |
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37 iNl(aMD.iNl),iNh(aMD.iNh) |
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38 { |
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39 (void)Mem::Copy(iData,aMD.iData,sizeof(iData)); |
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40 } |
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41 |
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42 EXPORT_C CMD4* CMD4::NewL(void) |
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43 { |
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44 CMD4* self = new (ELeave) CMD4(); |
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45 self->Reset(); |
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46 return (self); |
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47 } |
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48 |
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49 EXPORT_C CMessageDigest* CMD4::ReplicateL(void) |
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50 { |
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51 return CMD4::NewL(); |
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52 } |
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53 |
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54 EXPORT_C CMD4::~CMD4(void) |
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55 { |
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56 } |
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57 |
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58 EXPORT_C TPtrC8 CMD4::Hash(const TDesC8& aMessage) |
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59 { |
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60 //Adds the aMessage to the internal representation of data to be hashed i.e iData |
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61 DoUpdate(aMessage.Ptr(),aMessage.Size()); |
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62 StoreState(); |
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63 //Does the padding and does the block operation on the final 512 bit block. |
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64 DoFinal(); |
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65 RestoreState(); |
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66 return iHash; |
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67 } |
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68 |
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69 EXPORT_C CMessageDigest* CMD4::CopyL(void) |
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70 { |
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71 return new(ELeave) CMD4(*this); |
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72 } |
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73 |
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74 EXPORT_C TInt CMD4::BlockSize(void) |
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75 { |
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76 return sizeof(iData); |
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77 } |
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78 |
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79 EXPORT_C TInt CMD4::HashSize(void) |
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80 { |
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81 return MD4_HASH; |
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82 } |
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83 |
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84 EXPORT_C void CMD4::Reset(void) |
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85 { |
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86 iA=0x67452301; |
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87 iB=0xefcdab89; |
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88 iC=0x98badcfe; |
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89 iD=0x10325476; |
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90 iNh=0; |
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91 iNl=0; |
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92 } |
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93 |
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94 EXPORT_C void CMD4::Update(const TDesC8& aMessage) |
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95 { |
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96 DoUpdate(aMessage.Ptr(),aMessage.Size()); |
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97 } |
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98 |
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99 EXPORT_C TPtrC8 CMD4::Final(const TDesC8& aMessage) |
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100 { |
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101 //Adds the aMessage to the internal representation of data to be hashed i.e iData |
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102 DoUpdate(aMessage.Ptr(),aMessage.Size()); |
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103 //Does the padding and does the block operation on the final 512 bit block. |
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104 DoFinal(); |
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105 //Resets the values of iA, iB, iC and iD, iNh, iNl |
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106 Reset(); |
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107 return iHash; |
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108 } |
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109 |
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110 EXPORT_C TPtrC8 CMD4::Final() |
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111 { |
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112 //Does the padding and does the block operation on the final 512 bit block. |
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113 DoFinal(); |
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114 //Resets the values of iA, iB, iC and iD, iNh, iNl |
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115 Reset(); |
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116 return iHash; |
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117 } |
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118 |
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119 void CMD4::DoUpdate(const TUint8* aData,TUint aLength) |
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120 { |
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121 const TUint8* pend=aData+aLength; |
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122 for (const TUint8* paData=aData;paData<pend;paData++) |
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123 { |
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124 const TUint8 byte=*paData; |
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125 switch (iNl&3) |
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126 { |
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127 case 0: |
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128 iData[iNl>>2]=byte; |
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129 break; |
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130 case 1: |
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131 iData[iNl>>2]|=byte<<8; |
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132 break; |
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133 case 2: |
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134 iData[iNl>>2]|=byte<<16; |
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135 break; |
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136 case 3: |
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137 iData[iNl>>2]|=byte<<24; |
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138 break; |
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139 default: |
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140 break; |
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141 }; |
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142 if(++iNl==64) |
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143 { |
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144 Block(); |
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145 iNh+=64; |
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146 iNl=0; |
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147 } |
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148 } |
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149 } |
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150 |
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151 static inline TUint CMD4_F(TUint x,TUint y,TUint z) |
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152 { |
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153 return ((x)&(y)) | ((~x)&(z)); |
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154 } |
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155 |
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156 static inline TUint CMD4_G(TUint x,TUint y,TUint z) |
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157 { |
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158 return ((x)&(y)) | ((x)&(z)) | ((y)&(z)); |
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159 } |
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160 |
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161 static inline TUint CMD4_H(TUint x,TUint y,TUint z) |
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162 { |
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163 return (x)^(y)^(z); |
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164 } |
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165 |
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166 |
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167 #ifdef NOREFS |
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168 static inline TUint CMD4_FF(TUint a,const TUint b,const TUint c,const TUint d,const TUint x,const TUint s) |
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169 { |
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170 a+=CMD4_F(b,c,d) + x; |
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171 a=CMD_R(a,s); |
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172 return a; |
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173 } |
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174 |
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175 static inline TUint CMD4_GG(TUint a,const TUint b,const TUint c,const TUint d,const TUint x,const TUint s) |
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176 { |
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177 a+=CMD4_G(b,c,d) + x + (TUint32)0x5a827999; |
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178 a=CMD_R(a,s); |
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179 return a; |
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180 } |
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181 |
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182 static inline TUint CMD4_HH(TUint a,const TUint b,const TUint c,const TUint d,const TUint x,const TUint s) |
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183 { |
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184 a+=CMD4_H(b,c,d) + x + (TUint32)0x6ed9eba1; |
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185 a=CMD_R(a,s); |
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186 return a; |
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187 } |
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188 |
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189 void CMD4::Block() |
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190 { |
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191 register TUint tempA=iA; |
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192 register TUint tempB=iB; |
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193 register TUint tempC=iC; |
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194 register TUint tempD=iD; |
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195 |
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196 tempA = CMD4_FF(tempA,tempB,tempC,tempD,iData[ 0],3); |
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197 tempD = CMD4_FF(tempD,tempA,tempB,tempC,iData[ 1],7); |
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198 tempC = CMD4_FF(tempC,tempD,tempA,tempB,iData[ 2],11); |
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199 tempB = CMD4_FF(tempB,tempC,tempD,tempA,iData[ 3],19); |
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200 tempA = CMD4_FF(tempA,tempB,tempC,tempD,iData[ 4],3); |
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201 tempD = CMD4_FF(tempD,tempA,tempB,tempC,iData[ 5],7); |
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202 tempC = CMD4_FF(tempC,tempD,tempA,tempB,iData[ 6],11); |
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203 tempB = CMD4_FF(tempB,tempC,tempD,tempA,iData[ 7],19); |
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204 tempA = CMD4_FF(tempA,tempB,tempC,tempD,iData[ 8],3); |
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205 tempD = CMD4_FF(tempD,tempA,tempB,tempC,iData[ 9],7); |
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206 tempC = CMD4_FF(tempC,tempD,tempA,tempB,iData[10],11); |
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207 tempB = CMD4_FF(tempB,tempC,tempD,tempA,iData[11],19); |
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208 tempA = CMD4_FF(tempA,tempB,tempC,tempD,iData[12],3); |
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209 tempD = CMD4_FF(tempD,tempA,tempB,tempC,iData[13],7); |
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210 tempC = CMD4_FF(tempC,tempD,tempA,tempB,iData[14],11); |
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211 tempB = CMD4_FF(tempB,tempC,tempD,tempA,iData[15],19); |
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212 |
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213 tempA = CMD4_GG(tempA,tempB,tempC,tempD,iData[ 0],3); |
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214 tempD = CMD4_GG(tempD,tempA,tempB,tempC,iData[ 4],5); |
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215 tempC = CMD4_GG(tempC,tempD,tempA,tempB,iData[ 8],9); |
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216 tempB = CMD4_GG(tempB,tempC,tempD,tempA,iData[12],13); |
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217 tempA = CMD4_GG(tempA,tempB,tempC,tempD,iData[ 1],3); |
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218 tempD = CMD4_GG(tempD,tempA,tempB,tempC,iData[ 5],5); |
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219 tempC = CMD4_GG(tempC,tempD,tempA,tempB,iData[ 9],9); |
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220 tempB = CMD4_GG(tempB,tempC,tempD,tempA,iData[13],13); |
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221 tempA = CMD4_GG(tempA,tempB,tempC,tempD,iData[ 2],3); |
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222 tempD = CMD4_GG(tempD,tempA,tempB,tempC,iData[ 6],5); |
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223 tempC = CMD4_GG(tempC,tempD,tempA,tempB,iData[10],9); |
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224 tempB = CMD4_GG(tempB,tempC,tempD,tempA,iData[14],13); |
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225 tempA = CMD4_GG(tempA,tempB,tempC,tempD,iData[ 3],3); |
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226 tempD = CMD4_GG(tempD,tempA,tempB,tempC,iData[ 7],5); |
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227 tempC = CMD4_GG(tempC,tempD,tempA,tempB,iData[11],9); |
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228 tempB = CMD4_GG(tempB,tempC,tempD,tempA,iData[15],13); |
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229 |
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230 tempA = CMD4_HH(tempA,tempB,tempC,tempD,iData[ 0],3); |
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231 tempD = CMD4_HH(tempD,tempA,tempB,tempC,iData[ 8],9); |
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232 tempC = CMD4_HH(tempC,tempD,tempA,tempB,iData[ 4],11); |
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233 tempB = CMD4_HH(tempB,tempC,tempD,tempA,iData[12],15); |
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234 tempA = CMD4_HH(tempA,tempB,tempC,tempD,iData[ 2],3); |
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235 tempD = CMD4_HH(tempD,tempA,tempB,tempC,iData[10],9); |
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236 tempC = CMD4_HH(tempC,tempD,tempA,tempB,iData[ 6],11); |
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237 tempB = CMD4_HH(tempB,tempC,tempD,tempA,iData[14],15); |
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238 tempA = CMD4_HH(tempA,tempB,tempC,tempD,iData[ 1],3); |
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239 tempD = CMD4_HH(tempD,tempA,tempB,tempC,iData[ 9],9); |
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240 tempC = CMD4_HH(tempC,tempD,tempA,tempB,iData[ 5],11); |
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241 tempB = CMD4_HH(tempB,tempC,tempD,tempA,iData[13],15); |
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242 tempA = CMD4_HH(tempA,tempB,tempC,tempD,iData[ 3],3); |
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243 tempD = CMD4_HH(tempD,tempA,tempB,tempC,iData[11],9); |
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244 tempC = CMD4_HH(tempC,tempD,tempA,tempB,iData[ 7],11); |
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245 tempB = CMD4_HH(tempB,tempC,tempD,tempA,iData[15],15); |
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246 |
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247 iA+=tempA; |
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248 iB+=tempB; |
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249 iC+=tempC; |
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250 iD+=tempD; |
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251 } |
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252 |
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253 #else |
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254 #ifdef MACRO |
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255 #define CMD4_FF(a, b, c, d, x, s) (CMD_R(a += CMD4_F(b,c,d) + x, s)) |
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256 #define CMD4_GG(a, b, c, d, x, s) (CMD_R(a += CMD4_G(b,c,d) + x + (TUint32)0x5a827999, s)) |
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257 #define CMD4_HH(a, b, c, d, x, s) (CMD_R(a += CMD4_H(b,c,d) + x + (TUint32)0x6ed9eba1, s)) |
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258 void CMD4::Block() |
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259 { |
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260 register TUint tempA=iA; |
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261 register TUint tempB=iB; |
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262 register TUint tempC=iC; |
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263 register TUint tempD=iD; |
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264 |
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265 tempA = CMD4_FF(tempA,tempB,tempC,tempD,iData[ 0],3); |
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266 tempD = CMD4_FF(tempD,tempA,tempB,tempC,iData[ 1],7); |
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267 tempC = CMD4_FF(tempC,tempD,tempA,tempB,iData[ 2],11); |
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268 tempB = CMD4_FF(tempB,tempC,tempD,tempA,iData[ 3],19); |
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269 tempA = CMD4_FF(tempA,tempB,tempC,tempD,iData[ 4],3); |
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270 tempD = CMD4_FF(tempD,tempA,tempB,tempC,iData[ 5],7); |
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271 tempC = CMD4_FF(tempC,tempD,tempA,tempB,iData[ 6],11); |
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272 tempB = CMD4_FF(tempB,tempC,tempD,tempA,iData[ 7],19); |
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273 tempA = CMD4_FF(tempA,tempB,tempC,tempD,iData[ 8],3); |
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274 tempD = CMD4_FF(tempD,tempA,tempB,tempC,iData[ 9],7); |
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275 tempC = CMD4_FF(tempC,tempD,tempA,tempB,iData[10],11); |
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276 tempB = CMD4_FF(tempB,tempC,tempD,tempA,iData[11],19); |
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277 tempA = CMD4_FF(tempA,tempB,tempC,tempD,iData[12],3); |
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278 tempD = CMD4_FF(tempD,tempA,tempB,tempC,iData[13],7); |
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279 tempC = CMD4_FF(tempC,tempD,tempA,tempB,iData[14],11); |
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280 tempB = CMD4_FF(tempB,tempC,tempD,tempA,iData[15],19); |
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281 |
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282 tempA = CMD4_GG(tempA,tempB,tempC,tempD,iData[ 0],3); |
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283 tempD = CMD4_GG(tempD,tempA,tempB,tempC,iData[ 4],5); |
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284 tempC = CMD4_GG(tempC,tempD,tempA,tempB,iData[ 8],9); |
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285 tempB = CMD4_GG(tempB,tempC,tempD,tempA,iData[12],13); |
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286 tempA = CMD4_GG(tempA,tempB,tempC,tempD,iData[ 1],3); |
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287 tempD = CMD4_GG(tempD,tempA,tempB,tempC,iData[ 5],5); |
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288 tempC = CMD4_GG(tempC,tempD,tempA,tempB,iData[ 9],9); |
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289 tempB = CMD4_GG(tempB,tempC,tempD,tempA,iData[13],13); |
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290 tempA = CMD4_GG(tempA,tempB,tempC,tempD,iData[ 2],3); |
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291 tempD = CMD4_GG(tempD,tempA,tempB,tempC,iData[ 6],5); |
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292 tempC = CMD4_GG(tempC,tempD,tempA,tempB,iData[10],9); |
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293 tempB = CMD4_GG(tempB,tempC,tempD,tempA,iData[14],13); |
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294 tempA = CMD4_GG(tempA,tempB,tempC,tempD,iData[ 3],3); |
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295 tempD = CMD4_GG(tempD,tempA,tempB,tempC,iData[ 7],5); |
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296 tempC = CMD4_GG(tempC,tempD,tempA,tempB,iData[11],9); |
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297 tempB = CMD4_GG(tempB,tempC,tempD,tempA,iData[15],13); |
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298 |
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299 tempA = CMD4_HH(tempA,tempB,tempC,tempD,iData[ 0],3); |
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300 tempD = CMD4_HH(tempD,tempA,tempB,tempC,iData[ 8],9); |
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301 tempC = CMD4_HH(tempC,tempD,tempA,tempB,iData[ 4],11); |
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302 tempB = CMD4_HH(tempB,tempC,tempD,tempA,iData[12],15); |
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303 tempA = CMD4_HH(tempA,tempB,tempC,tempD,iData[ 2],3); |
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304 tempD = CMD4_HH(tempD,tempA,tempB,tempC,iData[10],9); |
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305 tempC = CMD4_HH(tempC,tempD,tempA,tempB,iData[ 6],11); |
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306 tempB = CMD4_HH(tempB,tempC,tempD,tempA,iData[14],15); |
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307 tempA = CMD4_HH(tempA,tempB,tempC,tempD,iData[ 1],3); |
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308 tempD = CMD4_HH(tempD,tempA,tempB,tempC,iData[ 9],9); |
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309 tempC = CMD4_HH(tempC,tempD,tempA,tempB,iData[ 5],11); |
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310 tempB = CMD4_HH(tempB,tempC,tempD,tempA,iData[13],15); |
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311 tempA = CMD4_HH(tempA,tempB,tempC,tempD,iData[ 3],3); |
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312 tempD = CMD4_HH(tempD,tempA,tempB,tempC,iData[11],9); |
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313 tempC = CMD4_HH(tempC,tempD,tempA,tempB,iData[ 7],11); |
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314 tempB = CMD4_HH(tempB,tempC,tempD,tempA,iData[15],15); |
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315 |
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316 iA+=tempA; |
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317 iB+=tempB; |
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318 iC+=tempC; |
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319 iD+=tempD; |
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320 } |
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321 |
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322 #else |
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323 static inline void CMD4_FF(TUint& a,const TUint b,const TUint c,const TUint d,const TUint x,const TUint s) |
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324 { |
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325 a+=CMD4_F(b,c,d) + x; |
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326 a=CMD_R(a,s); |
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327 } |
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328 |
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329 static inline void CMD4_GG(TUint& a,const TUint b,const TUint c,const TUint d,const TUint x,const TUint s) |
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330 { |
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331 a+=CMD4_G(b,c,d) + x + (TUint32)0x5a827999; |
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332 a=CMD_R(a,s); |
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333 } |
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334 |
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335 static inline void CMD4_HH(TUint& a,const TUint b,const TUint c,const TUint d,const TUint x,const TUint s) |
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336 { |
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337 a+=CMD4_H(b,c,d) + x + (TUint32)0x6ed9eba1; |
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338 a=CMD_R(a,s); |
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339 } |
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340 |
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341 void CMD4::Block() |
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342 { |
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343 register TUint tempA=iA; |
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344 register TUint tempB=iB; |
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345 register TUint tempC=iC; |
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346 register TUint tempD=iD; |
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347 |
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348 CMD4_FF(tempA,tempB,tempC,tempD,iData[ 0],3); |
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349 CMD4_FF(tempD,tempA,tempB,tempC,iData[ 1],7); |
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350 CMD4_FF(tempC,tempD,tempA,tempB,iData[ 2],11); |
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351 CMD4_FF(tempB,tempC,tempD,tempA,iData[ 3],19); |
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352 CMD4_FF(tempA,tempB,tempC,tempD,iData[ 4],3); |
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353 CMD4_FF(tempD,tempA,tempB,tempC,iData[ 5],7); |
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354 CMD4_FF(tempC,tempD,tempA,tempB,iData[ 6],11); |
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355 CMD4_FF(tempB,tempC,tempD,tempA,iData[ 7],19); |
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356 CMD4_FF(tempA,tempB,tempC,tempD,iData[ 8],3); |
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357 CMD4_FF(tempD,tempA,tempB,tempC,iData[ 9],7); |
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358 CMD4_FF(tempC,tempD,tempA,tempB,iData[10],11); |
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359 CMD4_FF(tempB,tempC,tempD,tempA,iData[11],19); |
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360 CMD4_FF(tempA,tempB,tempC,tempD,iData[12],3); |
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361 CMD4_FF(tempD,tempA,tempB,tempC,iData[13],7); |
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362 CMD4_FF(tempC,tempD,tempA,tempB,iData[14],11); |
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363 CMD4_FF(tempB,tempC,tempD,tempA,iData[15],19); |
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364 |
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365 CMD4_GG(tempA,tempB,tempC,tempD,iData[ 0],3); |
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366 CMD4_GG(tempD,tempA,tempB,tempC,iData[ 4],5); |
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367 CMD4_GG(tempC,tempD,tempA,tempB,iData[ 8],9); |
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368 CMD4_GG(tempB,tempC,tempD,tempA,iData[12],13); |
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369 CMD4_GG(tempA,tempB,tempC,tempD,iData[ 1],3); |
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370 CMD4_GG(tempD,tempA,tempB,tempC,iData[ 5],5); |
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371 CMD4_GG(tempC,tempD,tempA,tempB,iData[ 9],9); |
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372 CMD4_GG(tempB,tempC,tempD,tempA,iData[13],13); |
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373 CMD4_GG(tempA,tempB,tempC,tempD,iData[ 2],3); |
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374 CMD4_GG(tempD,tempA,tempB,tempC,iData[ 6],5); |
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375 CMD4_GG(tempC,tempD,tempA,tempB,iData[10],9); |
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376 CMD4_GG(tempB,tempC,tempD,tempA,iData[14],13); |
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377 CMD4_GG(tempA,tempB,tempC,tempD,iData[ 3],3); |
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378 CMD4_GG(tempD,tempA,tempB,tempC,iData[ 7],5); |
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379 CMD4_GG(tempC,tempD,tempA,tempB,iData[11],9); |
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380 CMD4_GG(tempB,tempC,tempD,tempA,iData[15],13); |
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381 |
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382 CMD4_HH(tempA,tempB,tempC,tempD,iData[ 0],3); |
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383 CMD4_HH(tempD,tempA,tempB,tempC,iData[ 8],9); |
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384 CMD4_HH(tempC,tempD,tempA,tempB,iData[ 4],11); |
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385 CMD4_HH(tempB,tempC,tempD,tempA,iData[12],15); |
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386 CMD4_HH(tempA,tempB,tempC,tempD,iData[ 2],3); |
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387 CMD4_HH(tempD,tempA,tempB,tempC,iData[10],9); |
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388 CMD4_HH(tempC,tempD,tempA,tempB,iData[ 6],11); |
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389 CMD4_HH(tempB,tempC,tempD,tempA,iData[14],15); |
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390 CMD4_HH(tempA,tempB,tempC,tempD,iData[ 1],3); |
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391 CMD4_HH(tempD,tempA,tempB,tempC,iData[ 9],9); |
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392 CMD4_HH(tempC,tempD,tempA,tempB,iData[ 5],11); |
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393 CMD4_HH(tempB,tempC,tempD,tempA,iData[13],15); |
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394 CMD4_HH(tempA,tempB,tempC,tempD,iData[ 3],3); |
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395 CMD4_HH(tempD,tempA,tempB,tempC,iData[11],9); |
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396 CMD4_HH(tempC,tempD,tempA,tempB,iData[ 7],11); |
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397 CMD4_HH(tempB,tempC,tempD,tempA,iData[15],15); |
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398 |
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399 iA+=tempA; |
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400 iB+=tempB; |
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401 iC+=tempC; |
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402 iD+=tempD; |
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403 } |
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404 #endif |
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405 #endif |
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406 |
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407 void CMD4::DoFinal(void) |
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408 { |
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409 iNh += iNl; |
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410 const TUint ul128=128; |
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411 switch (iNl&3) |
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412 { |
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413 case 0: |
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414 iData[iNl>>2] = ul128; |
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415 break; |
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416 case 1: |
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417 iData[iNl>>2] += ul128<<8; |
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418 break; |
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419 case 2: |
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420 iData[iNl>>2] += ul128<<16; |
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421 break; |
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422 case 3: |
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423 iData[iNl>>2] += ul128<<24; |
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424 break; |
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425 default: |
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426 break; |
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427 }; |
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428 if (iNl>=56) |
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429 { |
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430 if (iNl<60) |
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431 iData[15]=0; |
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432 Block(); |
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433 Mem::FillZ(iData,14*sizeof(TUint)); |
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434 } |
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435 else |
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436 { |
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437 const TUint offset=(iNl+4)>>2; |
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438 Mem::FillZ(iData+offset,(14-offset)*sizeof(TUint)); |
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439 } |
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440 |
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441 iData[14]=iNh<<3;//number in bits |
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442 // this will fail if the total input length is longer than 2^32 in bits |
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443 //(2^31 in bytes) which is roughly half a gig. |
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444 iData[15]=0; |
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445 |
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446 Block(); |
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447 // |
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448 // Generate hash value into iHash |
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449 // |
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450 TUint tmp=iA; |
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451 iHash[0]=(TUint8)(tmp & 255); |
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452 iHash[1]=(TUint8)((tmp >>= 8) & 255); |
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453 iHash[2]=(TUint8)((tmp >>= 8) & 255); |
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454 iHash[3]=(TUint8)((tmp >>= 8) & 255); |
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455 |
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456 tmp=iB; |
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457 iHash[4]=(TUint8)(tmp & 255); |
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458 iHash[5]=(TUint8)((tmp >>= 8) & 255); |
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459 iHash[6]=(TUint8)((tmp >>= 8) & 255); |
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460 iHash[7]=(TUint8)((tmp >>= 8) & 255); |
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461 |
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462 tmp=iC; |
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463 iHash[8]=(TUint8)(tmp & 255); |
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464 iHash[9]=(TUint8)((tmp >>= 8) & 255); |
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465 iHash[10]=(TUint8)((tmp >>= 8) & 255); |
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466 iHash[11]=(TUint8)((tmp >>= 8) & 255); |
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467 |
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468 tmp=iD; |
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469 iHash[12]=(TUint8)(tmp & 255); |
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470 iHash[13]=(TUint8)((tmp >>= 8) & 255); |
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471 iHash[14]=(TUint8)((tmp >>= 8) & 255); |
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472 iHash[15]=(TUint8)((tmp >>= 8) & 255); |
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473 } |
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474 |
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475 void CMD4::RestoreState() |
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476 { |
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477 iA = iACopy; |
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478 iB = iBCopy; |
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479 iC = iCCopy; |
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480 iD = iDCopy; |
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481 iNl = iNlCopy; |
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482 iNh = iNhCopy; |
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483 Mem::Copy(&iData[0], &iDataCopy[0], MD4_LBLOCK*sizeof(TUint)); |
|
484 } |
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485 |
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486 void CMD4::StoreState() |
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487 { |
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488 iACopy = iA; |
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489 iBCopy = iB; |
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490 iCCopy = iC; |
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491 iDCopy = iD; |
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492 iNlCopy = iNl; |
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493 iNhCopy = iNh; |
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494 Mem::Copy(&iDataCopy[0], &iData[0], MD4_LBLOCK*sizeof(TUint)); |
|
495 } |