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

# FC_EncryptFinal

## [Name](#name)

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FC_EncryptFinal - finish a multi-part encryption operation.
:::

## [Syntax](#syntax)

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```{code}
CK_RV FC_EncryptFinal(
  CK_SESSION_HANDLE hSession,
  CK_BYTE_PTR pLastEncryptedPart,
  CK_ULONG_PTR pusLastEncryptedPartLen
);
```

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## [Parameters](#parameters)

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`hSession`

: [in] session handle.

`pLastEncryptedPart`

: [out] pointer to the location that receives the last encrypted data part, if any

`pusLastEncryptedPartLen`

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

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`FC_EncryptFinal` returns the last block of data of a multi-part encryption operation.

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

## [Examples](#examples)

## [See also](#see_also)

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- {ref}`mozilla_projects_nss_reference_fc_encryptinit`,
  [NSC_EncryptFinal](/en-US/NSC_EncryptFinal)
:::
