Esys_Hash(3)

🌸 NAME 🌸

Esys_Hash — the ESAPI function for the TPM2_Hash command. This page is Esys_Hash(3) from the Library Functions Manual, and yes bestie, we are officially in the manual-page era. 💅

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✨ SYNOPSIS ✨

🎀 Functions 🎀

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

One function, one signature, zero mystery. Slay. ✨

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🦋 Detailed Description 🦋

ESAPI function to invoke the TPM2_Hash command either as a one-call or in an asynchronous manner. That’s the whole vibe: one-call mode or async mode, and this page is the ESAPI doorway to TPM2_Hash. 🫶

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💫 Function Documentation 💫

🔥 TSS2_RC Esys_Hash_Finish 🔥

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. No cap, that’s literally the contract. 🎀

🌟 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.

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🌈 Author 🌈

Generated automatically by Doxygen for tpm2-tss from the source code. 💀 Not me hand-writing lore, the Doxygen machine did that.

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okay final footer-ish sign-off, bestie: this page comes from tpm2-tss, Version 4.1.5, and the footer also carries Esys_Hash(3). Date? The page doesn’t show one, so I’m not inventing it — periodt. 💖✨