(mozilla-projects-nss-reference-fc-decryptfinal)=

# FC_DecryptFinal

## [Name](#name)

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FC_DecryptFinal - finish a multi-part decryption operation.
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## [Syntax](#syntax)

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```{code}
CK_RV FC_DecryptFinal(
  CK_SESSION_HANDLE hSession,
  CK_BYTE_PTR pLastPart,
  CK_ULONG_PTR pusLastPartLen
);
```

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## [Parameters](#parameters)

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`hSession`

: [in] session handle.

`pLastPart`

: [out] pointer to the location where the last block of recovered data, if any, is to be stored.

`pusLastPartLen`

: [in,out] pointer to location where the number of bytes of recovered data is to be stored.
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## [Description](#description)

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`FC_DecryptFinal` returns the last block of data of a multi-part decryption operation.

A user must log into the token (to assume the NSS User role) before calling `FC_DecryptFinal`.
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## [Return value](#return_value)

## [Examples](#examples)

## [See also](#see_also)

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- {ref}`mozilla_projects_nss_reference_fc_decryptinit`,
  [NSC_DecryptFinal](/en-US/NSC_DecryptFinal)
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