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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 * |
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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 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 ////////////////////////////////////////////////////////////////// |
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57 // Factory class to create CMessageDigest derived objects |
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58 ////////////////////////////////////////////////////////////////// |
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59 EXPORT_C CMessageDigest* CMessageDigestFactory::NewDigestL(CMessageDigest::THashId aHashId) |
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60 { |
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61 CMessageDigest* hash = NULL; |
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62 switch (aHashId) |
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63 { |
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64 case (CMessageDigest::EMD2): |
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65 { |
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66 hash = CMD2::NewL(); |
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67 break; |
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68 } |
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69 case (CMessageDigest::EMD5): |
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70 { |
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71 hash = CMD5::NewL(); |
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72 break; |
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73 } |
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74 case (CMessageDigest::ESHA1): |
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75 { |
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76 hash = CSHA1::NewL(); |
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77 break; |
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78 } |
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79 case (CMessageDigest::EMD4): |
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80 { |
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81 hash = CMD4::NewL(); |
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82 break; |
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83 } |
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84 case (CMessageDigest::ESHA224): |
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85 { |
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86 hash = CSHA2::NewL(E224Bit); |
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87 break; |
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88 } |
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89 case (CMessageDigest::ESHA256): |
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90 { |
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91 hash = CSHA2::NewL(E256Bit); |
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92 break; |
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93 } |
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94 case (CMessageDigest::ESHA384): |
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95 { |
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96 hash = CSHA2::NewL(E384Bit); |
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97 break; |
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98 } |
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99 case (CMessageDigest::ESHA512): |
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100 { |
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101 hash = CSHA2::NewL(E512Bit); |
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102 break; |
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103 } |
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104 case (CMessageDigest::HMAC): |
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105 default: |
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106 User::Leave(KErrNotSupported); |
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107 } |
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108 |
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109 return (hash); |
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110 } |
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111 |
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112 EXPORT_C CMessageDigest* CMessageDigestFactory::NewDigestLC(CMessageDigest::THashId aHashId) |
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113 { |
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114 CMessageDigest* hash = CMessageDigestFactory::NewDigestL(aHashId); |
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115 CleanupStack::PushL(hash); |
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116 return (hash); |
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117 } |
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118 |
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119 EXPORT_C CMessageDigest* CMessageDigestFactory::NewHMACL(CMessageDigest::THashId aHashId, const TDesC8& aKey) |
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120 { |
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121 CMessageDigest* hash = CMessageDigestFactory::NewDigestLC(aHashId); |
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122 CMessageDigest* hmac = CHMAC::NewL(aKey, hash); |
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123 CleanupStack::Pop(hash); // Now owned by hmac |
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124 return (hmac); |
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125 } |
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126 |
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127 EXPORT_C CMessageDigest* CMessageDigestFactory::NewHMACLC(CMessageDigest::THashId aHashId, const TDesC8& aKey) |
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128 { |
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129 CMessageDigest* hmac = CMessageDigestFactory::NewHMACL(aHashId, aKey); |
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130 CleanupStack::PushL(hmac); |
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131 return (hmac); |
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132 } |