| /***********************************************************************; |
| * Copyright (c) 2015, Intel Corporation |
| * All rights reserved. |
| * |
| * Redistribution and use in source and binary forms, with or without |
| * modification, are permitted provided that the following conditions are met: |
| * |
| * 1. Redistributions of source code must retain the above copyright notice, |
| * this list of conditions and the following disclaimer. |
| * |
| * 2. Redistributions in binary form must reproduce the above copyright notice, |
| * this list of conditions and the following disclaimer in the documentation |
| * and/or other materials provided with the distribution. |
| * |
| * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" |
| * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE |
| * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE |
| * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE |
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| * THE POSSIBILITY OF SUCH DAMAGE. |
| ***********************************************************************/ |
| |
| #include <sapi/tpm20.h> |
| #include "sysapi_util.h" |
| |
| TPM_RC Tss2_Sys_EC_Ephemeral_Prepare( |
| TSS2_SYS_CONTEXT *sysContext, |
| TPMI_ECC_CURVE curveID |
| ) |
| { |
| if( sysContext == NULL ) |
| { |
| return( TSS2_SYS_RC_BAD_REFERENCE ); |
| } |
| |
| |
| |
| CommonPreparePrologue( sysContext, TPM_CC_EC_Ephemeral ); |
| |
| |
| |
| Marshal_UINT16( SYS_CONTEXT->tpmInBuffPtr, SYS_CONTEXT->maxCommandSize, &(SYS_CONTEXT->nextData), curveID, &(SYS_CONTEXT->rval) ); |
| |
| SYS_CONTEXT->decryptAllowed = 0; |
| SYS_CONTEXT->encryptAllowed = 1; |
| SYS_CONTEXT->authAllowed = 1; |
| |
| CommonPrepareEpilogue( sysContext ); |
| |
| return SYS_CONTEXT->rval; |
| } |
| |
| TPM_RC Tss2_Sys_EC_Ephemeral_Complete( |
| TSS2_SYS_CONTEXT *sysContext, |
| TPM2B_ECC_POINT *Q, |
| UINT16 *counter |
| ) |
| { |
| if( sysContext == NULL ) |
| { |
| return( TSS2_SYS_RC_BAD_REFERENCE ); |
| } |
| |
| CommonComplete( sysContext ); |
| |
| Unmarshal_TPM2B_ECC_POINT( sysContext, Q ); |
| |
| Unmarshal_UINT16( SYS_CONTEXT->tpmInBuffPtr, SYS_CONTEXT->maxCommandSize, &(SYS_CONTEXT->nextData), counter, &(SYS_CONTEXT->rval) ); |
| |
| return SYS_CONTEXT->rval; |
| } |
| |
| TPM_RC Tss2_Sys_EC_Ephemeral( |
| TSS2_SYS_CONTEXT *sysContext, |
| TSS2_SYS_CMD_AUTHS const *cmdAuthsArray, |
| TPMI_ECC_CURVE curveID, |
| TPM2B_ECC_POINT *Q, |
| UINT16 *counter, |
| TSS2_SYS_RSP_AUTHS *rspAuthsArray |
| ) |
| { |
| TSS2_RC rval = TPM_RC_SUCCESS; |
| |
| |
| |
| rval = Tss2_Sys_EC_Ephemeral_Prepare( sysContext, curveID ); |
| |
| if( rval == TSS2_RC_SUCCESS ) |
| { |
| rval = CommonOneCall( sysContext, cmdAuthsArray, rspAuthsArray ); |
| |
| if( rval == TSS2_RC_SUCCESS ) |
| { |
| rval = Tss2_Sys_EC_Ephemeral_Complete( sysContext, Q, counter ); |
| } |
| } |
| |
| return rval; |
| } |
| |