mirror of
https://github.com/nsacyber/HIRS.git
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279 lines
9.4 KiB
C++
279 lines
9.4 KiB
C++
#ifndef libhis_collateidentityrequest_hpp
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#define libhis_collateidentityrequest_hpp
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#ifdef WINDOWS
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#include "tspi.h"
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#include "tss_error.h"
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#include "tss_defines.h"
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#endif
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#ifdef LINUX
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#include <tss/tspi.h>
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#include <tss/tss_error.h>
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#include <tss/tss_defines.h>
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#endif
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#include "libhis_exception.hpp"
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#include "libhis_utils.hpp"
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class libhis_collateidentityrequest
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{
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public:
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libhis_collateidentityrequest()
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{
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//set default values
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init_ik_size = TSS_KEY_SIZE_DEFAULT;
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init_ik_type = TSS_KEY_TYPE_IDENTITY;
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init_ik_authorized = TSS_KEY_AUTHORIZATION;
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init_ik_migratable = TSS_KEY_NOT_MIGRATABLE;
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init_ik_volatile = TSS_KEY_VOLATILE;
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binitialized = false;
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//create a context object
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result = Tspi_Context_Create(&hcontext);
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if(result != TSS_SUCCESS) throw libhis_exception("Create Conntext", result);
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//create an SRK object
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result = Tspi_Context_CreateObject(hcontext, TSS_OBJECT_TYPE_RSAKEY, TSS_KEY_TSP_SRK, &hkey_srk);
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if(result != TSS_SUCCESS) throw libhis_exception("Create SRK", result);
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//Create TPM policy
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result = Tspi_Context_CreateObject(hcontext, TSS_OBJECT_TYPE_POLICY, TSS_POLICY_USAGE, &hpolicy_tpm);
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if(result != TSS_SUCCESS) throw libhis_exception("Create TPM Policy", result);
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//Create SRK policy
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result = Tspi_Context_CreateObject(hcontext, TSS_OBJECT_TYPE_POLICY, TSS_POLICY_USAGE, &hpolicy_srk);
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if(result != TSS_SUCCESS) throw libhis_exception("Create SRK Policy", result);
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//Create IK policy
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result = Tspi_Context_CreateObject(hcontext, TSS_OBJECT_TYPE_POLICY, TSS_POLICY_USAGE, &hpolicy_ik);
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if(result != TSS_SUCCESS) throw libhis_exception("Create IK Policy", result);
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//Create ACAK object
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result = Tspi_Context_CreateObject(hcontext, TSS_OBJECT_TYPE_RSAKEY, TSS_KEY_SIZE_DEFAULT, &hkey_acak);
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if(result != TSS_SUCCESS) throw libhis_exception("Create ACAK", result);
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}
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void init()
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{
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//combine the init flags
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init_ik = init_ik_size | init_ik_type | init_ik_authorized | init_ik_migratable | init_ik_volatile;
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//Create IK object
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result = Tspi_Context_CreateObject(hcontext, TSS_OBJECT_TYPE_RSAKEY, init_ik, &hkey_ik);
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if(result != TSS_SUCCESS) throw libhis_exception("Create IK", result);
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binitialized = true;
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}
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void collateidentityrequest(
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unsigned char *auth_tpm_value,
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unsigned long auth_tpm_size,
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bool auth_tpm_sha1,
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unsigned char *auth_srk_value,
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unsigned long auth_srk_size,
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bool auth_srk_sha1,
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unsigned char *auth_ik_value,
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unsigned long auth_ik_size,
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bool auth_ik_sha1,
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unsigned char *label_ik_value,
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unsigned long label_ik_size,
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unsigned char *key_acak_value,
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unsigned long key_acak_size,
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unsigned char *uuid_ik_value,
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bool uuid_overwrite,
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unsigned char *ekc_value,
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unsigned long ekc_size,
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unsigned char *pc_value,
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unsigned long pc_size,
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unsigned char *&output_value,
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unsigned long &output_size)
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{
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//establish a session
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result = Tspi_Context_Connect(hcontext, 0);
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if(result != TSS_SUCCESS) throw libhis_exception("Connect Context", result);
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//get the TPM object
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result = Tspi_Context_GetTpmObject(hcontext, &htpm);
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if(result != TSS_SUCCESS) throw libhis_exception("Get TPM Object", result);
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//set up TPM auth
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if(auth_tpm_sha1)
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{
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result = Tspi_Policy_SetSecret(hpolicy_tpm, TSS_SECRET_MODE_SHA1, auth_tpm_size, auth_tpm_value);
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if(result != TSS_SUCCESS) throw libhis_exception("Set TPM Secret SHA1", result);
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}
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else
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{
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result = Tspi_Policy_SetSecret(hpolicy_tpm, TSS_SECRET_MODE_PLAIN, auth_tpm_size, auth_tpm_value);
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if(result != TSS_SUCCESS) throw libhis_exception("Set TPM Secret Plain", result);
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}
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//assign the TPM auth
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result = Tspi_Policy_AssignToObject(hpolicy_tpm, htpm);
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if(result != TSS_SUCCESS) throw libhis_exception("Assign TPM Secret", result);
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//assign the TPM auth to the ACAK too
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result = Tspi_Policy_AssignToObject(hpolicy_tpm, hkey_acak);
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if(result != TSS_SUCCESS) throw libhis_exception("Assign ACAK Secret", result);
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//load the SRK
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TSS_UUID uuid_srk = TSS_UUID_SRK;
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result = Tspi_Context_LoadKeyByUUID(hcontext, TSS_PS_TYPE_SYSTEM, uuid_srk, &hkey_srk);
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if(result != TSS_SUCCESS) throw libhis_exception("Load SRK", result);
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//set up SRK auth
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if(auth_srk_sha1)
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{
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result = Tspi_Policy_SetSecret(hpolicy_srk, TSS_SECRET_MODE_SHA1, auth_srk_size, auth_srk_value);
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if(result != TSS_SUCCESS) throw libhis_exception("Set SRK Secret SHA1", result);
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}
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else
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{
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result = Tspi_Policy_SetSecret(hpolicy_srk, TSS_SECRET_MODE_PLAIN, auth_srk_size, auth_srk_value);
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if(result != TSS_SUCCESS) throw libhis_exception("Set SRK Secret Plain", result);
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}
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//assign the SRK auth
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result = Tspi_Policy_AssignToObject(hpolicy_srk, hkey_srk);
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if(result != TSS_SUCCESS) throw libhis_exception("Assign SRK Secret", result);
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//set up IK auth
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if(auth_ik_sha1)
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{
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result = Tspi_Policy_SetSecret(hpolicy_ik, TSS_SECRET_MODE_SHA1, auth_ik_size, auth_ik_value);
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if(result != TSS_SUCCESS) throw libhis_exception("Set IK Secret SHA1", result);
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}
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else
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{
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result = Tspi_Policy_SetSecret(hpolicy_ik, TSS_SECRET_MODE_PLAIN, auth_ik_size, auth_ik_value);
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if(result != TSS_SUCCESS) throw libhis_exception("Set IK Secret Plain", result);
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}
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//assign the IK auth
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result = Tspi_Policy_AssignToObject(hpolicy_ik, hkey_ik);
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if(result != TSS_SUCCESS) throw libhis_exception("Assign IK Secret", result);
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//set ACAK blob
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result = Tspi_SetAttribData(hkey_acak, TSS_TSPATTRIB_KEY_BLOB, TSS_TSPATTRIB_KEYBLOB_PUBLIC_KEY, key_acak_size, key_acak_value);
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if(result != TSS_SUCCESS) throw libhis_exception("Set ACAK Blob", result);
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if(ekc_size != 0)
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{
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//set the EK cert
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result = Tspi_SetAttribData(htpm, TSS_TSPATTRIB_TPM_CREDENTIAL, TSS_TPMATTRIB_EKCERT, ekc_size, ekc_value);
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if(result != TSS_SUCCESS) throw libhis_exception("Set EK credential blob", result);
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}
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if(pc_size != 0)
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{
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//set the Platform cert
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result = Tspi_SetAttribData(htpm, TSS_TSPATTRIB_TPM_CREDENTIAL, TSS_TPMATTRIB_PLATFORMCERT, pc_size, pc_value);
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if(result != TSS_SUCCESS) throw libhis_exception("Set Platform credential blob", result);
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}
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//Collate identity request
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BYTE *value;
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UINT32 size;
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result = Tspi_TPM_CollateIdentityRequest(htpm, hkey_srk, hkey_acak, label_ik_size, label_ik_value, hkey_ik, TSS_ALG_AES, &size, &value);
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if(result != TSS_SUCCESS) throw libhis_exception("Collate identity Request", result);
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//Copy memory because TSS uses malloc and free, but we're using new and delete
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output_size = size;
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output_value = new unsigned char[size];
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for(unsigned long i = 0; i < size; i++)
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{
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output_value[i] = value[i];
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}
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//clean up the TSS data -- CANNOT DO THIS; TSS MEMORY LEAK?
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//result = Tspi_Context_FreeMemory(hcontext, value);
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//if(result != TSS_SUCCESS) throw libhis_exception("Cleanup identity request", result);
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//Unwrap the newly generated IK
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result = Tspi_Key_LoadKey(hkey_ik, hkey_srk);
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if(result != TSS_SUCCESS) throw libhis_exception("Unwrap IK", result);
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//Set up the IK UUID
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hextouuid(uuid_ik_value, uuid_ik);
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try
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{
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//save ik
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result = Tspi_Context_RegisterKey(hcontext, hkey_ik, TSS_PS_TYPE_SYSTEM, uuid_ik, TSS_PS_TYPE_SYSTEM, uuid_srk);
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if(result != TSS_SUCCESS) throw libhis_exception("Save IK By UUID", result);
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}
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catch(libhis_exception &e)
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{
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if(uuid_overwrite)
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{
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//Unregister the existing key
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result = Tspi_Context_UnregisterKey(hcontext, TSS_PS_TYPE_SYSTEM, uuid_ik, &hkey_unregister);
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if(result != TSS_SUCCESS) throw libhis_exception("Unregister slot", result);
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//Register a new key
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result = Tspi_Context_RegisterKey(hcontext, hkey_ik, TSS_PS_TYPE_SYSTEM, uuid_ik, TSS_PS_TYPE_SYSTEM, uuid_srk);
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if(result != TSS_SUCCESS) throw libhis_exception("Resave IK By UUID", result);
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}
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else throw e;
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}
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return;
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}
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~libhis_collateidentityrequest()
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{
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//clean up ACAK
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result = Tspi_Context_CloseObject(hcontext, hkey_acak);
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if(result != TSS_SUCCESS) throw libhis_exception("Close ACAK", result);
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//clean up IK policy
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result = Tspi_Context_CloseObject(hcontext, hpolicy_ik);
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if(result != TSS_SUCCESS) throw libhis_exception("Close IK Policy", result);
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if(binitialized)
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{
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//clean up IK
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result = Tspi_Context_CloseObject(hcontext, hkey_ik);
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if(result != TSS_SUCCESS) throw libhis_exception("Close IK", result);
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}
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//clean up SRK policy
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result = Tspi_Context_CloseObject(hcontext, hpolicy_srk);
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if(result != TSS_SUCCESS) throw libhis_exception("Close SRK Policy", result);
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//clean up TPM policy
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result = Tspi_Context_CloseObject(hcontext, hpolicy_tpm);
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if(result != TSS_SUCCESS) throw libhis_exception("Close TPM Policy", result);
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//clean up SRK object
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result = Tspi_Context_CloseObject(hcontext, hkey_srk);
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if(result != TSS_SUCCESS) throw libhis_exception("Close SRK", result);
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//close context
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result = Tspi_Context_Close(hcontext);
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if(result != TSS_SUCCESS) throw libhis_exception("Close Context", result);
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}
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private:
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TSS_RESULT result;
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TSS_HCONTEXT hcontext;
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TSS_HTPM htpm;
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TSS_HKEY hkey_srk,
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hkey_ik,
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hkey_acak,
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hkey_unregister;
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TSS_HPOLICY hpolicy_tpm,
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hpolicy_srk,
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hpolicy_ik;
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TSS_UUID uuid_ik;
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UINT32 init_ik,
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init_ik_size,
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init_ik_type,
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init_ik_authorized,
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init_ik_migratable,
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init_ik_volatile;
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bool binitialized;
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};
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#endif
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