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1 /* |
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2 * Copyright (c) 2004-2009 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 <random.h> |
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20 #include <padding.h> |
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21 #include <securityerr.h> |
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22 #include "tpaddingPKCS7.h" |
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23 #include <cryptopanic.h> |
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24 |
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25 static void GenerateInput(TInt aBytes, TPtr8& in) |
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26 { |
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27 for (TInt j = 0; j < aBytes; j++) |
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28 { |
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29 TInt text('a'+j%25); |
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30 in.Append(text); |
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31 } |
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32 } |
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33 |
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34 CTestPadPKCS7::CTestPadPKCS7() |
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35 { |
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36 SetTestStepName(KPadPKCS7); |
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37 } |
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38 |
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39 CTestPadPKCS7::~CTestPadPKCS7() |
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40 { |
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41 } |
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42 |
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43 TVerdict CTestPadPKCS7::doTestStepL() |
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44 { |
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45 SetTestStepResult(EPass); |
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46 __UHEAP_MARK; |
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47 |
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48 INFO_PRINTF1(_L("Test of PKCS7 padding")); |
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49 |
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50 for (TInt i = 1; i < 255; i++) |
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51 { |
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52 TestPKCS7Padding(i); |
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53 } |
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54 |
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55 __UHEAP_MARKEND; |
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56 return TestStepResult(); |
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57 } |
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58 |
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59 |
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60 void CTestPadPKCS7::TestPKCS7Padding(TInt aBlockSize) |
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61 { |
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62 CPaddingPKCS7 *padding = CPaddingPKCS7::NewLC(aBlockSize); |
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63 // Starts with zero input size(total block data is filled/padded with block size) |
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64 for (TInt i = 0 ; i <= aBlockSize; i++) |
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65 { |
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66 HBufC8 *padInData = HBufC8::NewLC(i); |
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67 HBufC8 *padOutData = HBufC8::NewLC(i+(aBlockSize-i%aBlockSize)); |
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68 TPtr8 in(padInData->Des()); |
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69 TPtr8 out(padOutData->Des()); |
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70 |
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71 GenerateInput(i, in); |
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72 TRAPD(err, padding->PadL(in, out)); |
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73 |
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74 TEST(err == KErrNone); |
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75 |
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76 TInt totalLength = out.Length(); |
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77 TUint paddingLength = aBlockSize - in.Length()%aBlockSize; |
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78 // Test that the total length is a multiple of blockSize |
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79 TEST((totalLength % aBlockSize) == 0); |
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80 |
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81 // Test that the padding bytes are equal in value to the paddingLength, |
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82 // ie, if padding length is 5 the 5 last octets in the out array should be 0x05 |
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83 for (TInt j = paddingLength; j > 0 ; j--) |
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84 { |
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85 TEST(out[out.Length()-j] == paddingLength); |
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86 } |
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87 |
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88 // Test that the data has not been corrupted |
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89 TEST(in == out.Left(out.Length() - paddingLength)); |
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90 |
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91 CleanupStack::PopAndDestroy(2, padInData); // padInData, padOutData |
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92 } |
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93 CleanupStack::PopAndDestroy(padding); |
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94 } |
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95 |
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96 CTestUnpadPKCS7::CTestUnpadPKCS7() |
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97 { |
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98 SetTestStepName(KUnpadPKCS7); |
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99 } |
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100 |
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101 CTestUnpadPKCS7::~CTestUnpadPKCS7() |
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102 { |
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103 } |
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104 |
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105 TVerdict CTestUnpadPKCS7::doTestStepL() |
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106 { |
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107 SetTestStepResult(EPass); |
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108 __UHEAP_MARK; |
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109 |
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110 INFO_PRINTF1(_L("Test of PKCS7 unpadding")); |
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111 for (TInt i = 1; i < 255; i++) |
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112 { |
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113 TestPKCS7Unpadding(i); |
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114 } |
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115 |
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116 __UHEAP_MARKEND; |
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117 return TestStepResult(); |
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118 } |
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119 |
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120 |
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121 void CTestUnpadPKCS7::TestPKCS7Unpadding(TInt aBlockSize) |
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122 { |
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123 CPaddingPKCS7 *padding = CPaddingPKCS7::NewLC(aBlockSize); |
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124 |
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125 // Input must be < aBlockSize otherwise this wouldn't be |
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126 // a padded block |
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127 for (TInt i = 0 ; i < aBlockSize; i++) |
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128 { |
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129 // Input to un-padding should always be an entire block |
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130 // for correctly data. |
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131 HBufC8 *padInData = HBufC8::NewLC(aBlockSize); |
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132 HBufC8 *padOutData = HBufC8::NewLC(i); |
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133 HBufC8 *padCompareData = HBufC8::NewLC(i); |
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134 TPtr8 in(padInData->Des()); |
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135 TPtr8 out(padOutData->Des()); |
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136 TPtr8 comp(padCompareData->Des()); |
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137 |
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138 GenerateInput(i, in); |
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139 comp.Copy(in); |
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140 |
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141 in.SetLength(aBlockSize); |
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142 TInt paddingBytes = aBlockSize - (i % aBlockSize); |
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143 for (TInt j = 1; j <= paddingBytes; j++) |
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144 { |
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145 in[in.Length()-j] = (TUint8)paddingBytes; |
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146 } |
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147 |
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148 TRAPD(err, padding->UnPadL(in, out)); |
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149 if (err != KErrNone) |
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150 { |
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151 INFO_PRINTF3(_L("The Error returned for block size %d is %d"), aBlockSize,err); |
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152 } |
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153 TEST(err == KErrNone); // Verify UnPadL leave code |
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154 TEST(out == comp); // Verify UnPadL output data with expected data |
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155 CleanupStack::PopAndDestroy(3, padInData); // padInData, padOutData, padCompareData |
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156 } |
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157 CleanupStack::PopAndDestroy(padding); |
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158 } |
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159 |
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160 |
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161 CTestUnpadCorruptPKCS7::CTestUnpadCorruptPKCS7() |
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162 { |
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163 SetTestStepName(KUnpadCorruptPKCS7); |
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164 } |
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165 |
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166 CTestUnpadCorruptPKCS7::~CTestUnpadCorruptPKCS7() |
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167 { |
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168 } |
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169 |
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170 TVerdict CTestUnpadCorruptPKCS7::doTestStepL() |
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171 { |
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172 SetTestStepResult(EPass); |
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173 __UHEAP_MARK; |
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174 |
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175 TInt blockSize; |
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176 TInt textSize; |
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177 TInt paddingNum = 0; |
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178 |
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179 if (GetIntFromConfig(ConfigSection(), _L("blocksize"), blockSize)) |
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180 { |
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181 if (GetIntFromConfig(ConfigSection(), _L("textsize"), textSize)) |
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182 { |
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183 if (GetIntFromConfig(ConfigSection(), _L("paddingbyte"), paddingNum)) |
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184 { |
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185 INFO_PRINTF1(_L("Test of PKCS7 unpadding with corrupt data")); |
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186 TUint8 paddingByte = Min(paddingNum, 255); |
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187 TestCorruptPKCS7Unpadding(blockSize, textSize, paddingByte); |
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188 } |
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189 else |
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190 { |
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191 ERR_PRINTF1(_L("Missing parameter - paddingbyte")); |
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192 } |
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193 } |
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194 else |
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195 { |
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196 ERR_PRINTF1(_L("Missing parameter - textsize")); |
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197 } |
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198 } |
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199 else |
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200 { |
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201 ERR_PRINTF1(_L("Missing parameter - blocksize")); |
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202 } |
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203 |
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204 __UHEAP_MARKEND; |
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205 return TestStepResult(); |
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206 } |
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207 |
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208 void CTestUnpadCorruptPKCS7::TestCorruptPKCS7Unpadding(TInt aBlockSize, TInt aTextSize, TUint8 aPaddingByte) |
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209 { |
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210 CPaddingPKCS7 *padding = CPaddingPKCS7::NewLC(aBlockSize); |
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211 TInt paddingBytes = (aBlockSize - aTextSize % aBlockSize); |
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212 |
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213 HBufC8 *padInData = HBufC8::NewLC(aTextSize + paddingBytes); |
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214 HBufC8 *padOutData = HBufC8::NewLC(aTextSize); |
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215 TPtr8 in(padInData->Des()); |
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216 TPtr8 out(padOutData->Des()); |
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217 |
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218 GenerateInput(aTextSize, in); |
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219 |
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220 in.SetLength(in.Length() + paddingBytes); |
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221 for (TInt j = 1; j <= paddingBytes; j++) |
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222 { |
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223 in[in.Length()-j] = (TUint8) aPaddingByte; |
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224 } |
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225 |
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226 TRAPD(err, padding->UnPadL(in, out)); |
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227 |
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228 if ( err == KErrInvalidPadding ) |
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229 { |
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230 INFO_PRINTF2(_L("The PKCS7 unpadding UnPadL method returned error is %d"), err); |
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231 TEST(err == KErrInvalidPadding); |
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232 SetTestStepResult(EPass); |
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233 } |
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234 else if ( err == KErrNone ) |
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235 { |
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236 TEST(err == KErrNone); |
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237 } |
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238 CleanupStack::PopAndDestroy(3, padding); // padding, padInData, padOutData |
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239 } |
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240 |
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241 CTestPaddingCorruptPKCS7::CTestPaddingCorruptPKCS7() |
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242 { |
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243 SetTestStepName(KPaddingCorruptPKCS7); |
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244 } |
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245 |
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246 CTestPaddingCorruptPKCS7::~CTestPaddingCorruptPKCS7() |
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247 { |
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248 } |
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249 |
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250 TVerdict CTestPaddingCorruptPKCS7::doTestStepL() |
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251 { |
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252 SetTestStepResult(EPass); |
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253 __UHEAP_MARK; |
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254 |
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255 TInt blockSize; |
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256 TInt textSize; |
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257 |
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258 if (GetIntFromConfig(ConfigSection(), _L("blocksize"), blockSize)) |
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259 { |
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260 if (GetIntFromConfig(ConfigSection(), _L("textsize"), textSize)) |
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261 { |
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262 INFO_PRINTF1(_L("Test of PKCS7 unpadding with corrupt data")); |
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263 TestCorruptPKCS7padding(blockSize, textSize); |
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264 } |
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265 else |
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266 { |
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267 ERR_PRINTF1(_L("Missing parameter - textsize")); |
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268 } |
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269 } |
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270 else |
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271 { |
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272 ERR_PRINTF1(_L("Missing parameter - blocksize")); |
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273 } |
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274 |
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275 __UHEAP_MARKEND; |
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276 return TestStepResult(); |
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277 } |
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278 |
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279 void CTestPaddingCorruptPKCS7::TestCorruptPKCS7padding(TInt aBlockSize, TInt aTextSize) |
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280 { |
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281 CPaddingPKCS7 *padding = CPaddingPKCS7::NewLC(aBlockSize); |
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282 |
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283 TInt paddingBytes = 0; |
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284 //Divide by 0 is undefined. |
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285 if(aBlockSize != 0) |
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286 { |
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287 paddingBytes = aBlockSize - (aTextSize % aBlockSize); |
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288 } |
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289 |
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290 HBufC8 *padOutData = HBufC8::NewLC(aTextSize + paddingBytes); |
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291 HBufC8 *padInData = HBufC8::NewLC(aTextSize); |
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292 TPtr8 in(padInData->Des()); |
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293 TPtr8 out(padOutData->Des()); |
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294 |
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295 GenerateInput(aTextSize, in); |
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296 TRAPD(err, padding->PadL(in, out)); |
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297 |
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298 INFO_PRINTF2(_L("The PKCS7 padding PadL method returned error is %d"), err); |
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299 |
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300 //check expected result |
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301 TPtrC expectedContent; |
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302 if (GetStringFromConfig(ConfigSection(), _L("case"), expectedContent)) |
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303 { |
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304 if(expectedContent.Compare(_L("InvalidPadding")) ==0) |
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305 { |
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306 TEST(err == KErrInvalidPadding); |
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307 } |
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308 else if(expectedContent.Compare(_L("Valid")) ==0) |
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309 { |
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310 TEST(err == KErrNone); |
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311 } |
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312 else if(expectedContent.Compare(_L("CorruptBlockSize")) ==0) |
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313 { |
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314 TEST(err == KErrArgument); |
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315 } |
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316 } |
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317 |
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318 //skip the checking on padded data if padding is unsuccessful(no padding is done), |
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319 //otherwise the erroneous operation on output descriptor will panic. |
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320 if(err != KErrNone) |
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321 { |
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322 CleanupStack::PopAndDestroy(3, padding); |
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323 return; |
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324 } |
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325 |
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326 TInt totalLength = out.Length(); |
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327 TInt inLength = in.Length(); |
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328 |
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329 TUint paddingLength = 0; |
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330 //Divide by 0 is undefined. |
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331 if(aBlockSize != 0) |
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332 { |
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333 paddingLength = aBlockSize - inLength%aBlockSize; |
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334 // Test that the total length is a multiple of blockSize |
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335 TEST((totalLength % aBlockSize) == 0); |
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336 } |
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337 |
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338 // Test that the padding bytes are equal in value to the paddingLength, |
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339 // ie, if padding length is 5 the 5 last octets in the out array should be 0x05 |
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340 for (TInt j = paddingLength; j > 0 ; j--) |
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341 { |
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342 TEST(out[out.Length()-j] == paddingLength); |
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343 } |
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344 |
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345 |
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346 |
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347 // Test that the data has not been corrupted |
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348 TEST(in == out.Left(out.Length() - paddingLength)); |
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349 |
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350 CleanupStack::PopAndDestroy(3, padding); // padInData, padOutData, padCompareData, padding |
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351 } |
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352 |