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Update documentation for multipart aead operations
This commit is contained in:
Andrew Thoelke
parent
db6f44f875
commit
414415a457
@ -2239,7 +2239,7 @@ static psa_aead_operation_t psa_aead_operation_init(void);
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* listed here.
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* -# Initialize the operation object with one of the methods described in the
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* documentation for #psa_aead_operation_t, e.g.
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* PSA_AEAD_OPERATION_INIT.
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* #PSA_AEAD_OPERATION_INIT.
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* -# Call psa_aead_encrypt_setup() to specify the algorithm and key.
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* -# If needed, call psa_aead_set_lengths() to specify the length of the
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* inputs to the subsequent calls to psa_aead_update_ad() and
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@ -2255,14 +2255,16 @@ static psa_aead_operation_t psa_aead_operation_init(void);
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* of the message to encrypt each time.
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* -# Call psa_aead_finish().
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*
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* The application may call psa_aead_abort() at any time after the operation
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* If an error occurs at any step after a call to psa_aead_encrypt_setup(),
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* the operation will need to be reset by a call to psa_aead_abort(). The
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* application may call psa_aead_abort() at any time after the operation
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* has been initialized.
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*
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* After a successful call to psa_aead_encrypt_setup(), the application must
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* eventually terminate the operation. The following events terminate an
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* operation:
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* - A failed call to any of the \c psa_aead_xxx functions.
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* - A call to psa_aead_finish(), psa_aead_verify() or psa_aead_abort().
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* - A successful call to psa_aead_finish().
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* - A call to psa_aead_abort().
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*
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* \param[in,out] operation The operation object to set up. It must have
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* been initialized as per the documentation for
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@ -2277,8 +2279,7 @@ static psa_aead_operation_t psa_aead_operation_init(void);
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* \retval #PSA_SUCCESS
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* Success.
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* \retval #PSA_ERROR_BAD_STATE
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* The operation state is not valid (already set up and not
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* subsequently completed).
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* The operation state is not valid (it must be inactive).
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* \retval #PSA_ERROR_INVALID_HANDLE
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* \retval #PSA_ERROR_NOT_PERMITTED
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* \retval #PSA_ERROR_INVALID_ARGUMENT
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@ -2307,7 +2308,7 @@ psa_status_t psa_aead_encrypt_setup(psa_aead_operation_t *operation,
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* listed here.
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* -# Initialize the operation object with one of the methods described in the
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* documentation for #psa_aead_operation_t, e.g.
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* PSA_AEAD_OPERATION_INIT.
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* #PSA_AEAD_OPERATION_INIT.
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* -# Call psa_aead_decrypt_setup() to specify the algorithm and key.
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* -# If needed, call psa_aead_set_lengths() to specify the length of the
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* inputs to the subsequent calls to psa_aead_update_ad() and
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@ -2320,14 +2321,16 @@ psa_status_t psa_aead_encrypt_setup(psa_aead_operation_t *operation,
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* of the ciphertext to decrypt each time.
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* -# Call psa_aead_verify().
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*
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* The application may call psa_aead_abort() at any time after the operation
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* If an error occurs at any step after a call to psa_aead_decrypt_setup(),
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* the operation will need to be reset by a call to psa_aead_abort(). The
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* application may call psa_aead_abort() at any time after the operation
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* has been initialized.
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*
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* After a successful call to psa_aead_decrypt_setup(), the application must
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* eventually terminate the operation. The following events terminate an
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* operation:
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* - A failed call to any of the \c psa_aead_xxx functions.
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* - A call to psa_aead_finish(), psa_aead_verify() or psa_aead_abort().
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* - A successful call to psa_aead_verify().
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* - A call to psa_aead_abort().
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*
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* \param[in,out] operation The operation object to set up. It must have
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* been initialized as per the documentation for
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@ -2342,8 +2345,7 @@ psa_status_t psa_aead_encrypt_setup(psa_aead_operation_t *operation,
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* \retval #PSA_SUCCESS
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* Success.
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* \retval #PSA_ERROR_BAD_STATE
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* The operation state is not valid (already set up and not
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* subsequently completed).
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* The operation state is not valid (it must be inactive).
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* \retval #PSA_ERROR_INVALID_HANDLE
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* \retval #PSA_ERROR_NOT_PERMITTED
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* \retval #PSA_ERROR_INVALID_ARGUMENT
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@ -2373,7 +2375,8 @@ psa_status_t psa_aead_decrypt_setup(psa_aead_operation_t *operation,
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* The application must call psa_aead_encrypt_setup() before
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* calling this function.
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*
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* If this function returns an error status, the operation becomes inactive.
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* If this function returns an error status, the operation enters an error
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* state and must be aborted by calling psa_aead_abort().
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*
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* \param[in,out] operation Active AEAD operation.
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* \param[out] nonce Buffer where the generated nonce is to be
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@ -2385,7 +2388,8 @@ psa_status_t psa_aead_decrypt_setup(psa_aead_operation_t *operation,
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* \retval #PSA_SUCCESS
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* Success.
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* \retval #PSA_ERROR_BAD_STATE
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* The operation state is not valid (not set up, or nonce already set).
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* The operation state is not valid (it must be an active aead encrypt
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operation, with no nonce set).
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* \retval #PSA_ERROR_BUFFER_TOO_SMALL
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* The size of the \p nonce buffer is too small.
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* \retval #PSA_ERROR_INSUFFICIENT_MEMORY
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@ -2408,10 +2412,11 @@ psa_status_t psa_aead_generate_nonce(psa_aead_operation_t *operation,
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* This function sets the nonce for the authenticated
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* encryption or decryption operation.
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*
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* The application must call psa_aead_encrypt_setup() before
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* calling this function.
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* The application must call psa_aead_encrypt_setup() or
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* psa_aead_decrypt_setup() before calling this function.
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*
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* If this function returns an error status, the operation becomes inactive.
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* If this function returns an error status, the operation enters an error
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* state and must be aborted by calling psa_aead_abort().
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*
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* \note When encrypting, applications should use psa_aead_generate_nonce()
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* instead of this function, unless implementing a protocol that requires
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@ -2424,7 +2429,8 @@ psa_status_t psa_aead_generate_nonce(psa_aead_operation_t *operation,
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* \retval #PSA_SUCCESS
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* Success.
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* \retval #PSA_ERROR_BAD_STATE
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* The operation state is not valid (not set up, or nonce already set).
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* The operation state is not valid (it must be active, with no nonce
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* set).
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* \retval #PSA_ERROR_INVALID_ARGUMENT
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* The size of \p nonce is not acceptable for the chosen algorithm.
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* \retval #PSA_ERROR_INSUFFICIENT_MEMORY
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@ -2457,6 +2463,9 @@ psa_status_t psa_aead_set_nonce(psa_aead_operation_t *operation,
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* this function is not required.
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* - For vendor-defined algorithm, refer to the vendor documentation.
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*
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* If this function returns an error status, the operation enters an error
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* state and must be aborted by calling psa_aead_abort().
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*
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* \param[in,out] operation Active AEAD operation.
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* \param ad_length Size of the non-encrypted additional
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* authenticated data in bytes.
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@ -2465,8 +2474,8 @@ psa_status_t psa_aead_set_nonce(psa_aead_operation_t *operation,
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* \retval #PSA_SUCCESS
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* Success.
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* \retval #PSA_ERROR_BAD_STATE
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* The operation state is not valid (not set up, already completed,
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* or psa_aead_update_ad() or psa_aead_update() already called).
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* The operation state is not valid (it must be active, but before
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* psa_aead_update_ad() or psa_aead_update() are called).
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* \retval #PSA_ERROR_INVALID_ARGUMENT
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* At least one of the lengths is not acceptable for the chosen
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* algorithm.
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@ -2495,7 +2504,8 @@ psa_status_t psa_aead_set_lengths(psa_aead_operation_t *operation,
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* 1. Call either psa_aead_encrypt_setup() or psa_aead_decrypt_setup().
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* 2. Set the nonce with psa_aead_generate_nonce() or psa_aead_set_nonce().
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*
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* If this function returns an error status, the operation becomes inactive.
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* If this function returns an error status, the operation enters an error
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* state and must be aborted by calling psa_aead_abort().
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*
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* \warning When decrypting, until psa_aead_verify() has returned #PSA_SUCCESS,
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* there is no guarantee that the input is valid. Therefore, until
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@ -2511,8 +2521,8 @@ psa_status_t psa_aead_set_lengths(psa_aead_operation_t *operation,
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* \retval #PSA_SUCCESS
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* Success.
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* \retval #PSA_ERROR_BAD_STATE
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* The operation state is not valid (not set up, nonce not set,
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* psa_aead_update() already called, or operation already completed).
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* The operation state is not valid (it must be active and ready to
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* receive additional data).
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* \retval #PSA_ERROR_INVALID_ARGUMENT
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* The total input length overflows the additional data length that
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* was previously specified with psa_aead_set_lengths().
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@ -2539,7 +2549,8 @@ psa_status_t psa_aead_update_ad(psa_aead_operation_t *operation,
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* 2. Set the nonce with psa_aead_generate_nonce() or psa_aead_set_nonce().
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* 3. Call psa_aead_update_ad() to pass all the additional data.
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*
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* If this function returns an error status, the operation becomes inactive.
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* If this function returns an error status, the operation enters an error
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* state and must be aborted by calling psa_aead_abort().
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*
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* \warning When decrypting, until psa_aead_verify() has returned #PSA_SUCCESS,
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* there is no guarantee that the input is valid. Therefore, until
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@ -2579,8 +2590,8 @@ psa_status_t psa_aead_update_ad(psa_aead_operation_t *operation,
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* \retval #PSA_SUCCESS
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* Success.
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* \retval #PSA_ERROR_BAD_STATE
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* The operation state is not valid (not set up, nonce not set
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* or already completed).
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* The operation state is not valid (it must be active and ready to
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* recieve message data).
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* \retval #PSA_ERROR_BUFFER_TOO_SMALL
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* The size of the \p output buffer is too small.
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* You can determine a sufficient buffer size by calling
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@ -2626,7 +2637,9 @@ psa_status_t psa_aead_update(psa_aead_operation_t *operation,
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* #PSA_AEAD_TAG_LENGTH(\c alg) where \c alg is the AEAD algorithm
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* that the operation performs.
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*
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* When this function returns, the operation becomes inactive.
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* When this function returns successfuly, the operation becomes inactive.
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* If this function returns an error status, the operation enters an error
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* state and must be aborted by calling psa_aead_abort().
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*
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* \param[in,out] operation Active AEAD operation.
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* \param[out] ciphertext Buffer where the last part of the ciphertext
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@ -2650,8 +2663,8 @@ psa_status_t psa_aead_update(psa_aead_operation_t *operation,
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* \retval #PSA_SUCCESS
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* Success.
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* \retval #PSA_ERROR_BAD_STATE
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* The operation state is not valid (not set up, nonce not set,
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* decryption, or already completed).
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* The operation state is not valid (it must be an active aead encrypt
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* operation, with all data provided).
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* \retval #PSA_ERROR_BUFFER_TOO_SMALL
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* The size of the \p ciphertext or \p tag buffer is too small.
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* You can determine a sufficient buffer size for \p ciphertext by
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@ -2694,7 +2707,9 @@ psa_status_t psa_aead_finish(psa_aead_operation_t *operation,
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* psa_aead_update_ad() with the ciphertext formed by concatenating the
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* inputs passed to preceding calls to psa_aead_update().
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*
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* When this function returns, the operation becomes inactive.
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* When this function returns successfuly, the operation becomes inactive.
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* If this function returns an error status, the operation enters an error
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* state and must be aborted by calling psa_aead_abort().
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*
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* \param[in,out] operation Active AEAD operation.
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* \param[out] plaintext Buffer where the last part of the plaintext
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@ -2715,8 +2730,8 @@ psa_status_t psa_aead_finish(psa_aead_operation_t *operation,
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* \retval #PSA_SUCCESS
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* Success.
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* \retval #PSA_ERROR_BAD_STATE
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* The operation state is not valid (not set up, nonce not set,
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* encryption, or already completed).
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* The operation state is not valid (it must be an active aead decrypt
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* operation, with all data provided).
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* \retval #PSA_ERROR_BUFFER_TOO_SMALL
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* The size of the \p plaintext buffer is too small.
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* You can determine a sufficient buffer size for \p plaintext by
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@ -2755,22 +2770,15 @@ psa_status_t psa_aead_verify(psa_aead_operation_t *operation,
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* psa_aead_encrypt_setup() or psa_aead_decrypt_setup() again.
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*
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* You may call this function any time after the operation object has
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* been initialized by any of the following methods:
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* - A call to psa_aead_encrypt_setup() or psa_aead_decrypt_setup(),
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* whether it succeeds or not.
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* - Initializing the \c struct to all-bits-zero.
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* - Initializing the \c struct to logical zeros, e.g.
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* `psa_aead_operation_t operation = {0}`.
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* been initialized as described in #psa_aead_operation_t.
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*
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* In particular, calling psa_aead_abort() after the operation has been
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* terminated by a call to psa_aead_abort() or psa_aead_finish()
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* is safe and has no effect.
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* terminated by a call to psa_aead_abort(), psa_aead_finish() or
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* psa_aead_verify() is safe and has no effect.
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*
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* \param[in,out] operation Initialized AEAD operation.
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*
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* \retval #PSA_SUCCESS
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* \retval #PSA_ERROR_BAD_STATE
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* \p operation is not an active AEAD operation.
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* \retval #PSA_ERROR_COMMUNICATION_FAILURE
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* \retval #PSA_ERROR_HARDWARE_FAILURE
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* \retval #PSA_ERROR_CORRUPTION_DETECTED
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