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1 /* |
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2 * Copyright (c) 2005-2009 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 * (c) 1999-2003 Symbian Ltd. All rights reserved |
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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 /** |
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21 @file |
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22 */ |
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23 |
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24 #include <e32std.h> |
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25 #include <hash.h> |
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26 #define EXPANDLOOP |
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27 |
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28 EXPORT_C CMessageDigest::CMessageDigest(void):CBase() |
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29 {} |
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30 |
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31 EXPORT_C CMessageDigest::CMessageDigest(const CMessageDigest& /*aMD*/):CBase() |
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32 {} |
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33 |
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34 EXPORT_C CMessageDigest::~CMessageDigest(void) |
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35 {} |
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36 |
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37 /* Note that the shifts here are NOT guaranteed to work if s == 0, and it is |
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38 * assumed in R() (and hence in all inline) that a is unsigned. */ |
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39 // CMD_R - rotate a left by n bits; the main bottleneck of the algorithm |
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40 // implementation |
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41 /* |
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42 C++ version compiles to: |
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43 |
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44 CMD_R__FUiUi: |
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45 add r3, r0, #0 |
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46 lsl r3, r3, r1 |
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47 mov r2, #32 |
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48 sub r2, r2, r1 |
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49 lsr r0, r0, r2 |
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50 add r3, r3, r0 |
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51 add r0, r3, #0 |
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52 bx lr |
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53 |
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54 */ |
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55 |
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56 TInt CMessageDigest::GetExtension(TUint aExtensionId, TAny*& a0, TAny* a1) |
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57 { |
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58 return Extension_(aExtensionId, a0, a1); |
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59 } |
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60 |
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61 |
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62 ////////////////////////////////////////////////////////////////// |
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63 // Factory class to create CMessageDigest derived objects |
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64 ////////////////////////////////////////////////////////////////// |
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65 EXPORT_C CMessageDigest* CMessageDigestFactory::NewDigestL(CMessageDigest::THashId aHashId) |
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66 { |
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67 CMessageDigest* hash = NULL; |
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68 switch (aHashId) |
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69 { |
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70 case (CMessageDigest::EMD2): |
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71 { |
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72 hash = CMD2::NewL(); |
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73 break; |
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74 } |
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75 case (CMessageDigest::EMD5): |
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76 { |
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77 hash = CMD5::NewL(); |
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78 break; |
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79 } |
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80 case (CMessageDigest::ESHA1): |
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81 { |
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82 hash = CSHA1::NewL(); |
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83 break; |
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84 } |
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85 case (CMessageDigest::EMD4): |
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86 { |
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87 hash = CMD4::NewL(); |
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88 break; |
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89 } |
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90 case (CMessageDigest::ESHA224): |
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91 { |
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92 hash = CSHA2::NewL(E224Bit); |
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93 break; |
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94 } |
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95 case (CMessageDigest::ESHA256): |
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96 { |
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97 hash = CSHA2::NewL(E256Bit); |
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98 break; |
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99 } |
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100 case (CMessageDigest::ESHA384): |
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101 { |
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102 hash = CSHA2::NewL(E384Bit); |
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103 break; |
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104 } |
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105 case (CMessageDigest::ESHA512): |
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106 { |
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107 hash = CSHA2::NewL(E512Bit); |
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108 break; |
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109 } |
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110 case (CMessageDigest::HMAC): |
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111 default: |
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112 User::Leave(KErrNotSupported); |
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113 } |
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114 |
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115 return (hash); |
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116 } |
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117 |
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118 EXPORT_C CMessageDigest* CMessageDigestFactory::NewDigestLC(CMessageDigest::THashId aHashId) |
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119 { |
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120 CMessageDigest* hash = CMessageDigestFactory::NewDigestL(aHashId); |
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121 CleanupStack::PushL(hash); |
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122 return (hash); |
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123 } |
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124 |
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125 EXPORT_C CMessageDigest* CMessageDigestFactory::NewHMACL(CMessageDigest::THashId aHashId, const TDesC8& aKey) |
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126 { |
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127 CMessageDigest* hash = CMessageDigestFactory::NewDigestLC(aHashId); |
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128 CMessageDigest* hmac = CHMAC::NewL(aKey, hash); |
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129 CleanupStack::Pop(hash); // Now owned by hmac |
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130 return (hmac); |
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131 } |
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132 |
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133 EXPORT_C CMessageDigest* CMessageDigestFactory::NewHMACLC(CMessageDigest::THashId aHashId, const TDesC8& aKey) |
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134 { |
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135 CMessageDigest* hmac = CMessageDigestFactory::NewHMACL(aHashId, aKey); |
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136 CleanupStack::PushL(hmac); |
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137 return (hmac); |
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138 } |