Esys_Hash(3)

NAME
Esys_Hash - The ESAPI function for the TPM2_Hash command.

SYNOPSIS

  Functions
TSS2_RC Esys_Hash_Finish (ESYS_CONTEXT *esysContext, TPM2B_DIGEST **outHash, TPMT_TK_HASHCHECK **validation)

Detailed Description

ESAPI function to invoke the TPM2_Hash command either as a one-call or in an asynchronous manner.

Function Documentation

  TSS2_RC Esys_Hash_Finish (ESYS_CONTEXT * esysContext, TPM2B_DIGEST ** outHash, TPMT_TK_HASHCHECK ** validation)
Asynchronous finish function for TPM2_Hash

This function returns the results of a TPM2_Hash command invoked via Esys_Hash_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.
    outHash Results. (callee-allocated)
    validation TPM2_Ticket indicating that the sequence of octets used to compute outDigest did not start with TPM2_GENERATED_VALUE. (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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