Provided by: libtss2-doc_3.2.1-3ubuntu1_all 
NAME
Esys_NV_Certify - The ESAPI function for the TPM2_NV_Certify command.
SYNOPSIS
Functions
TSS2_RC Esys_NV_Certify_Async (ESYS_CONTEXT *esysContext, ESYS_TR signHandle, ESYS_TR
authHandle, ESYS_TR nvIndex, ESYS_TR shandle1, ESYS_TR shandle2, ESYS_TR shandle3,
const TPM2B_DATA *qualifyingData, const TPMT_SIG_SCHEME *inScheme, UINT16 size, UINT16
offset)
TSS2_RC Esys_NV_Certify (ESYS_CONTEXT *esysContext, ESYS_TR signHandle, ESYS_TR
authHandle, ESYS_TR nvIndex, ESYS_TR shandle1, ESYS_TR shandle2, ESYS_TR shandle3,
const TPM2B_DATA *qualifyingData, const TPMT_SIG_SCHEME *inScheme, UINT16 size, UINT16
offset, TPM2B_ATTEST **certifyInfo, TPMT_SIGNATURE **signature)
TSS2_RC Esys_NV_Certify_Finish (ESYS_CONTEXT *esysContext, TPM2B_ATTEST **certifyInfo,
TPMT_SIGNATURE **signature)
Detailed Description
ESAPI function to invoke the TPM2_NV_Certify command either as a one-call or in an
asynchronous manner.
Function Documentation
TSS2_RC Esys_NV_Certify (ESYS_CONTEXT * esysContext, ESYS_TR signHandle, ESYS_TR authHandle,
ESYS_TR nvIndex, ESYS_TR shandle1, ESYS_TR shandle2, ESYS_TR shandle3, const TPM2B_DATA *
qualifyingData, const TPMT_SIG_SCHEME * inScheme, UINT16 size, UINT16 offset, TPM2B_ATTEST
** certifyInfo, TPMT_SIGNATURE ** signature)
One-Call function for TPM2_NV_Certify
This function invokes the TPM2_NV_Certify command in a one-call variant. This means the
function will block until the TPM response is available. All input parameters are const.
The memory for non-simple output parameters is allocated by the function implementation.
Parameters
esysContext The ESYS_CONTEXT.
signHandle Handle of the key used to sign the attestation structure.
authHandle Handle indicating the source of the authorization value for the NV Index.
nvIndex Index for the area to be certified.
shandle1 Session handle for authorization of signHandle
shandle2 Session handle for authorization of authHandle
shandle3 Third session handle.
qualifyingData User-provided qualifying data.
inScheme TPM2_Signing scheme to use if the scheme for signHandle is TPM2_ALG_NULL.
size Number of octets to certify.
offset Octet offset into the area.
certifyInfo The structure that was signed. (callee-allocated)
signature The asymmetric signature over certifyInfo using the key referenced by
signHandle. (callee-allocated)
Return values
TSS2_RC_SUCCESS if the function call was a success.
TSS2_ESYS_RC_BAD_REFERENCE if the esysContext or required input pointers or required
output handle references are NULL.
TSS2_ESYS_RC_BAD_CONTEXT if esysContext corruption is detected.
TSS2_ESYS_RC_MEMORY if the ESAPI cannot allocate enough memory for internal operations
or return parameters.
TSS2_ESYS_RC_BAD_SEQUENCE if the context has an asynchronous operation already
pending.
TSS2_ESYS_RC_INSUFFICIENT_RESPONSE if the TPM's response does not at least contain the
tag, response length, and response code.
TSS2_ESYS_RC_MALFORMED_RESPONSE if the TPM's response is corrupted.
TSS2_ESYS_RC_RSP_AUTH_FAILED if the response HMAC from the TPM did not verify.
TSS2_ESYS_RC_MULTIPLE_DECRYPT_SESSIONS if more than one session has the 'decrypt'
attribute bit set.
TSS2_ESYS_RC_MULTIPLE_ENCRYPT_SESSIONS if more than one session has the 'encrypt'
attribute bit set.
TSS2_ESYS_RC_BAD_TR if any of the ESYS_TR objects are unknown to the ESYS_CONTEXT or
are of the wrong type or if required ESYS_TR objects are ESYS_TR_NONE.
TSS2_RCs produced by lower layers of the software stack may be returned to the caller
unaltered unless handled internally.
TSS2_RC Esys_NV_Certify_Async (ESYS_CONTEXT * esysContext, ESYS_TR signHandle, ESYS_TR
authHandle, ESYS_TR nvIndex, ESYS_TR shandle1, ESYS_TR shandle2, ESYS_TR shandle3, const
TPM2B_DATA * qualifyingData, const TPMT_SIG_SCHEME * inScheme, UINT16 size, UINT16 offset)
Asynchronous function for TPM2_NV_Certify
This function invokes the TPM2_NV_Certify command in a asynchronous variant. This means
the function will return as soon as the command has been sent downwards the stack to the
TPM. All input parameters are const. In order to retrieve the TPM's response call
Esys_NV_Certify_Finish.
Parameters
esysContext The ESYS_CONTEXT.
signHandle Handle of the key used to sign the attestation structure.
authHandle Handle indicating the source of the authorization value for the NV Index.
nvIndex Index for the area to be certified.
shandle1 Session handle for authorization of signHandle
shandle2 Session handle for authorization of authHandle
shandle3 Third session handle.
qualifyingData User-provided qualifying data.
inScheme TPM2_Signing scheme to use if the scheme for signHandle is TPM2_ALG_NULL.
size Number of octets to certify.
offset Octet offset into the area.
Return values
ESYS_RC_SUCCESS if the function call was a success.
TSS2_ESYS_RC_BAD_REFERENCE if the esysContext or required input pointers or required
output handle references are NULL.
TSS2_ESYS_RC_BAD_CONTEXT if esysContext corruption is detected.
TSS2_ESYS_RC_MEMORY if the ESAPI cannot allocate enough memory for internal operations
or return parameters.
TSS2_RCs produced by lower layers of the software stack may be returned to the caller
unaltered unless handled internally.
TSS2_ESYS_RC_MULTIPLE_DECRYPT_SESSIONS if more than one session has the 'decrypt'
attribute bit set.
TSS2_ESYS_RC_MULTIPLE_ENCRYPT_SESSIONS if more than one session has the 'encrypt'
attribute bit set.
TSS2_ESYS_RC_BAD_TR if any of the ESYS_TR objects are unknown to the ESYS_CONTEXT or
are of the wrong type or if required ESYS_TR objects are ESYS_TR_NONE.
TSS2_RC Esys_NV_Certify_Finish (ESYS_CONTEXT * esysContext, TPM2B_ATTEST ** certifyInfo,
TPMT_SIGNATURE ** signature)
Asynchronous finish function for TPM2_NV_Certify
This function returns the results of a TPM2_NV_Certify command invoked via
Esys_NV_Certify_Finish. All non-simple output parameters are allocated by the function's
implementation. NULL can be passed for every output parameter if the value is not
required.
Parameters
esysContext The ESYS_CONTEXT.
certifyInfo The structure that was signed. (callee-allocated)
signature The asymmetric signature over certifyInfo using the key referenced by
signHandle. (callee-allocated)
Return values
TSS2_RC_SUCCESS on success
ESYS_RC_SUCCESS if the function call was a success.
TSS2_ESYS_RC_BAD_REFERENCE if the esysContext or required input pointers or required
output handle references are NULL.
TSS2_ESYS_RC_BAD_CONTEXT if esysContext corruption is detected.
TSS2_ESYS_RC_MEMORY if the ESAPI cannot allocate enough memory for internal operations
or return parameters.
TSS2_ESYS_RC_BAD_SEQUENCE if the context has an asynchronous operation already
pending.
TSS2_ESYS_RC_TRY_AGAIN if the timeout counter expires before the TPM response is
received.
TSS2_ESYS_RC_INSUFFICIENT_RESPONSE if the TPM's response does not at least contain the
tag, response length, and response code.
TSS2_ESYS_RC_RSP_AUTH_FAILED if the response HMAC from the TPM did not verify.
TSS2_ESYS_RC_MALFORMED_RESPONSE if the TPM's response is corrupted.
TSS2_RCs produced by lower layers of the software stack may be returned to the caller
unaltered unless handled internally.
Author
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