[72] | 1 | /* |
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| 2 | * $Id: Encryption.cpp 86 2008-05-14 17:08:56Z rosiere $ |
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| 3 | * |
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| 4 | * [ Description ] |
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| 5 | * |
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| 6 | */ |
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| 7 | |
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| 8 | #include "Behavioural/Custom/include/Encryption.h" |
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| 9 | |
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| 10 | namespace morpheo { |
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| 11 | namespace behavioural { |
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| 12 | namespace custom { |
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| 13 | namespace encryption { |
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| 14 | |
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| 15 | static uint32_t _num_group; |
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| 16 | |
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| 17 | Encryption::Encryption (uint32_t num_group, |
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| 18 | Toperation_t operation_encrypt, |
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| 19 | Toperation_t operation_decrypt) : |
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| 20 | _operation_encrypt (operation_encrypt), |
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| 21 | _operation_decrypt (operation_decrypt) |
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| 22 | { |
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| 23 | _num_group = num_group; |
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| 24 | }; |
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| 25 | |
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| 26 | uint32_t Encryption::get_nb_register (void) |
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| 27 | { |
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| 28 | return 3; |
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| 29 | }; |
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| 30 | |
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| 31 | access_mode_t Encryption::get_access_mode (uint32_t reg) |
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| 32 | { |
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| 33 | // All reg is access by supervisor |
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| 34 | return access_mode_t (SPR_ACCESS_MODE_NONE, SPR_ACCESS_MODE_READ_WRITE); |
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| 35 | } |
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| 36 | |
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| 37 | custom_decod_t * Encryption::get_custom_decod (Toperation_t operation) |
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| 38 | { |
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[86] | 39 | if (operation == _operation_encrypt) |
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| 40 | return &(morpheo::behavioural::custom::encryption::Encryption::decod_encrypt); |
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| 41 | if (operation == _operation_decrypt) |
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| 42 | return &(morpheo::behavioural::custom::encryption::Encryption::decod_decrypt); |
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| 43 | |
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| 44 | return &(morpheo::behavioural::core::multi_front_end::front_end::decod_unit::decod::instruction_illegal); // unimplemented function |
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[72] | 45 | } |
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| 46 | |
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| 47 | custom_execute_genMoore_t * Encryption::get_custom_execute_genMoore (Toperation_t operation) |
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| 48 | { |
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| 49 | if (operation == _operation_encrypt) |
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| 50 | return &(morpheo::behavioural::custom::encryption::Encryption::function_encrypt); |
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| 51 | if (operation == _operation_decrypt) |
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| 52 | return &(morpheo::behavioural::custom::encryption::Encryption::function_decrypt); |
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| 53 | |
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| 54 | return &(morpheo::behavioural::core::multi_execute_loop::execute_loop::multi_execute_unit::execute_unit::functionnal_unit::operation_unimplemented); // unimplemented function |
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| 55 | } |
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| 56 | |
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| 57 | custom_execute_transition_t * Encryption::get_custom_execute_transition (void) |
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| 58 | { |
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| 59 | // No treatment a the end cycle |
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| 60 | return NULL; |
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| 61 | } |
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| 62 | |
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| 63 | custom_execute_transition_t * Encryption::get_custom_execute_reset (void) |
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| 64 | { |
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| 65 | // No treatment a the end cycle |
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| 66 | return NULL; |
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| 67 | } |
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| 68 | |
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| 69 | void Encryption::function_encrypt (morpheo::behavioural::core::multi_execute_loop::execute_loop::multi_execute_unit::execute_unit::functionnal_unit::execute_operation_t * op, |
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| 70 | morpheo::behavioural::core::multi_execute_loop::execute_loop::multi_execute_unit::execute_unit::functionnal_unit::execute_register_t * reg, |
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| 71 | morpheo::behavioural::core::multi_execute_loop::execute_loop::multi_execute_unit::execute_unit::functionnal_unit::execute_param_t * param) |
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| 72 | { |
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| 73 | std::cout << "<Encryption::function_decrypt> Operation : encrypt" << std::endl; |
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| 74 | |
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| 75 | Tgeneral_data_t data = unsigned(op->_data_ra); |
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| 76 | |
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| 77 | Tgeneral_data_t key = reg->_spr[_num_group][num_register_key ]; |
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| 78 | Tgeneral_data_t shift = reg->_spr[_num_group][num_register_shift]; |
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| 79 | Tgeneral_data_t rool = reg->_spr[_num_group][num_register_role ]; |
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| 80 | |
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| 81 | for (Tgeneral_data_t i=0 ; i<rool; i++) |
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| 82 | { |
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| 83 | data ^= key; |
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| 84 | data = rotate_right<Tgeneral_data_t>(param->_size_data,data,shift); |
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| 85 | } |
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| 86 | |
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| 87 | // Result |
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| 88 | op->_timing = morpheo::behavioural::core::multi_execute_loop::execute_loop::multi_execute_unit::execute_unit::functionnal_unit::execute_timing_t(rool, rool); |
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| 89 | op->_data_rd = data; |
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| 90 | //op->_data_re = 0; |
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| 91 | op->_exception = EXCEPTION_ALU_NONE; |
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| 92 | op->_no_sequence = 0; |
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| 93 | //op->_address = 0; |
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| 94 | }; |
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| 95 | |
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| 96 | void Encryption::function_decrypt (morpheo::behavioural::core::multi_execute_loop::execute_loop::multi_execute_unit::execute_unit::functionnal_unit::execute_operation_t * op, |
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| 97 | morpheo::behavioural::core::multi_execute_loop::execute_loop::multi_execute_unit::execute_unit::functionnal_unit::execute_register_t * reg, |
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| 98 | morpheo::behavioural::core::multi_execute_loop::execute_loop::multi_execute_unit::execute_unit::functionnal_unit::execute_param_t * param) |
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| 99 | { |
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| 100 | std::cout << "<Encryption::function_decrypt> Operation : decrypt" << std::endl; |
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| 101 | |
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| 102 | Tgeneral_data_t data = unsigned(op->_data_ra); |
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| 103 | |
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| 104 | Tgeneral_data_t key = reg->_spr[_num_group][num_register_key ]; |
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| 105 | Tgeneral_data_t shift = reg->_spr[_num_group][num_register_shift]; |
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| 106 | Tgeneral_data_t rool = reg->_spr[_num_group][num_register_role ]; |
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| 107 | |
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| 108 | for (Tgeneral_data_t i=0 ; i<rool; i++) |
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| 109 | { |
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| 110 | data = rotate_left<Tgeneral_data_t>(param->_size_data,data,shift); |
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| 111 | data ^= key; |
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| 112 | } |
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| 113 | |
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| 114 | // Result |
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| 115 | op->_timing = morpheo::behavioural::core::multi_execute_loop::execute_loop::multi_execute_unit::execute_unit::functionnal_unit::execute_timing_t(rool, rool); |
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| 116 | op->_data_rd = data; |
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| 117 | //op->_data_re = 0; |
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| 118 | op->_exception = EXCEPTION_ALU_NONE; |
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| 119 | op->_no_sequence = 0; |
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| 120 | //op->_address = 0; |
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| 121 | }; |
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| 122 | |
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[86] | 123 | void Encryption::decod_encrypt (morpheo::behavioural::core::multi_front_end::front_end::decod_unit::decod::decod_instruction_t * inst, |
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| 124 | morpheo::behavioural::core::multi_front_end::front_end::decod_unit::decod::decod_param_t * param) |
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| 125 | { |
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| 126 | log_printf(TRACE,Decod,"decod_encrypt"," * instruction : encrypt"); |
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| 127 | |
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| 128 | inst->_has_immediat = 0; |
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| 129 | // inst->_immediat = ; |
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| 130 | inst->_read_ra = 1; |
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| 131 | inst->_num_reg_ra = range<Tgeneral_address_t>(inst->_instruction,20,16); |
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| 132 | inst->_read_rb = 0; |
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| 133 | // inst->_num_reg_rb = ; |
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| 134 | inst->_read_rc = 0; |
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| 135 | // inst->_num_reg_rc = ; |
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| 136 | inst->_write_rd = 1; |
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| 137 | inst->_num_reg_rd = range<Tgeneral_address_t>(inst->_instruction,25,21); |
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| 138 | inst->_write_re = 0; |
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| 139 | // inst->_num_reg_re = ; |
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| 140 | inst->_exception_use = EXCEPTION_USE_NONE; |
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| 141 | inst->_event_type = EVENT_TYPE_NONE; |
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| 142 | } |
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| 143 | |
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| 144 | void Encryption::decod_decrypt (morpheo::behavioural::core::multi_front_end::front_end::decod_unit::decod::decod_instruction_t * inst, |
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| 145 | morpheo::behavioural::core::multi_front_end::front_end::decod_unit::decod::decod_param_t * param) |
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| 146 | { |
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| 147 | log_printf(TRACE,Decod,"decod_decrypt"," * instruction : decrypt"); |
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| 148 | |
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| 149 | inst->_has_immediat = 0; |
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| 150 | // inst->_immediat = ; |
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| 151 | inst->_read_ra = 1; |
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| 152 | inst->_num_reg_ra = range<Tgeneral_address_t>(inst->_instruction,20,16); |
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| 153 | inst->_read_rb = 0; |
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| 154 | // inst->_num_reg_rb = ; |
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| 155 | inst->_read_rc = 0; |
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| 156 | // inst->_num_reg_rc = ; |
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| 157 | inst->_write_rd = 1; |
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| 158 | inst->_num_reg_rd = range<Tgeneral_address_t>(inst->_instruction,25,21); |
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| 159 | inst->_write_re = 0; |
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| 160 | // inst->_num_reg_re = ; |
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| 161 | inst->_exception_use = EXCEPTION_USE_NONE; |
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| 162 | inst->_event_type = EVENT_TYPE_NONE; |
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| 163 | } |
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| 164 | |
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[72] | 165 | }; // end namespace encryption |
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| 166 | }; // end namespace custom |
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| 167 | }; // end namespace behavioural |
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| 168 | }; // end namespace morpheo |
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