| /***********************************************************************; |
| * Copyright (c) 2015 - 2017, 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 "tss2_tpm2_types.h" |
| #include "tss2_mu.h" |
| #include "sysapi_util.h" |
| |
| TSS2_RC Tss2_Sys_ZGen_2Phase_Prepare( |
| TSS2_SYS_CONTEXT *sysContext, |
| TPMI_DH_OBJECT keyA, |
| const TPM2B_ECC_POINT *inQsB, |
| const TPM2B_ECC_POINT *inQeB, |
| TPMI_ECC_KEY_EXCHANGE inScheme, |
| UINT16 counter) |
| { |
| _TSS2_SYS_CONTEXT_BLOB *ctx = syscontext_cast(sysContext); |
| TSS2_RC rval; |
| |
| if (!ctx) |
| return TSS2_SYS_RC_BAD_REFERENCE; |
| |
| rval = CommonPreparePrologue(ctx, TPM2_CC_ZGen_2Phase); |
| if (rval) |
| return rval; |
| |
| rval = Tss2_MU_UINT32_Marshal(keyA, ctx->cmdBuffer, |
| ctx->maxCmdSize, |
| &ctx->nextData); |
| if (rval) |
| return rval; |
| |
| if (!inQsB) { |
| ctx->decryptNull = 1; |
| |
| rval = Tss2_MU_UINT16_Marshal(0, ctx->cmdBuffer, |
| ctx->maxCmdSize, |
| &ctx->nextData); |
| } else { |
| |
| rval = Tss2_MU_TPM2B_ECC_POINT_Marshal(inQsB, ctx->cmdBuffer, |
| ctx->maxCmdSize, |
| &ctx->nextData); |
| } |
| |
| if (rval) |
| return rval; |
| |
| rval = Tss2_MU_TPM2B_ECC_POINT_Marshal(inQeB, ctx->cmdBuffer, |
| ctx->maxCmdSize, |
| &ctx->nextData); |
| if (rval) |
| return rval; |
| |
| rval = Tss2_MU_UINT16_Marshal(inScheme, ctx->cmdBuffer, |
| ctx->maxCmdSize, |
| &ctx->nextData); |
| if (rval) |
| return rval; |
| |
| rval = Tss2_MU_UINT16_Marshal(counter, ctx->cmdBuffer, |
| ctx->maxCmdSize, |
| &ctx->nextData); |
| if (rval) |
| return rval; |
| |
| ctx->decryptAllowed = 1; |
| ctx->encryptAllowed = 1; |
| ctx->authAllowed = 1; |
| |
| return CommonPrepareEpilogue(ctx); |
| } |
| |
| TSS2_RC Tss2_Sys_ZGen_2Phase_Complete( |
| TSS2_SYS_CONTEXT *sysContext, |
| TPM2B_ECC_POINT *outZ1, |
| TPM2B_ECC_POINT *outZ2) |
| { |
| _TSS2_SYS_CONTEXT_BLOB *ctx = syscontext_cast(sysContext); |
| TSS2_RC rval; |
| |
| if (!ctx) |
| return TSS2_SYS_RC_BAD_REFERENCE; |
| |
| rval = CommonComplete(ctx); |
| if (rval) |
| return rval; |
| |
| rval = Tss2_MU_TPM2B_ECC_POINT_Unmarshal(ctx->cmdBuffer, |
| ctx->maxCmdSize, |
| &ctx->nextData, outZ1); |
| if (rval) |
| return rval; |
| |
| return Tss2_MU_TPM2B_ECC_POINT_Unmarshal(ctx->cmdBuffer, |
| ctx->maxCmdSize, |
| &ctx->nextData, outZ2); |
| } |
| |
| TSS2_RC Tss2_Sys_ZGen_2Phase( |
| TSS2_SYS_CONTEXT *sysContext, |
| TPMI_DH_OBJECT keyA, |
| TSS2L_SYS_AUTH_COMMAND const *cmdAuthsArray, |
| const TPM2B_ECC_POINT *inQsB, |
| const TPM2B_ECC_POINT *inQeB, |
| TPMI_ECC_KEY_EXCHANGE inScheme, |
| UINT16 counter, |
| TPM2B_ECC_POINT *outZ1, |
| TPM2B_ECC_POINT *outZ2, |
| TSS2L_SYS_AUTH_RESPONSE *rspAuthsArray) |
| { |
| _TSS2_SYS_CONTEXT_BLOB *ctx = syscontext_cast(sysContext); |
| TSS2_RC rval; |
| |
| rval = Tss2_Sys_ZGen_2Phase_Prepare(sysContext, keyA, inQsB, inQeB, |
| inScheme, counter); |
| if (rval) |
| return rval; |
| |
| rval = CommonOneCall(ctx, cmdAuthsArray, rspAuthsArray); |
| if (rval) |
| return rval; |
| |
| return Tss2_Sys_ZGen_2Phase_Complete(sysContext, outZ1, outZ2); |
| } |