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Copyedit the documentation of multipart operation functions

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Finish changing "start" to "set up".

Correct the way to set an IV for decryption: it's set_iv(), not
update().

When decrypting, the IV is given, not random.
This commit is contained in:
Gilles Peskine 2019-01-14 18:29:18 +01:00
parent 5f25dd00c0
commit f45adda9ac
1 changed files with 17 additions and 18 deletions
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35
include/psa/crypto.h
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@ -756,7 +756,7 @@ typedef struct psa_hash_operation_s psa_hash_operation_t;
*/ */
static psa_hash_operation_t psa_hash_operation_init(void); static psa_hash_operation_t psa_hash_operation_init(void);
/** Start a multipart hash operation. /** Set up a multipart hash operation.
* *
* The sequence of operations to calculate a hash (message digest) * The sequence of operations to calculate a hash (message digest)
* is as follows: * is as follows:
@ -811,7 +811,7 @@ psa_status_t psa_hash_setup(psa_hash_operation_t *operation,
* \retval #PSA_SUCCESS * \retval #PSA_SUCCESS
* Success. * Success.
* \retval #PSA_ERROR_BAD_STATE * \retval #PSA_ERROR_BAD_STATE
* The operation state is not valid (not started, or already completed). * The operation state is not valid (not set up, or already completed).
* \retval #PSA_ERROR_INSUFFICIENT_MEMORY * \retval #PSA_ERROR_INSUFFICIENT_MEMORY
* \retval #PSA_ERROR_COMMUNICATION_FAILURE * \retval #PSA_ERROR_COMMUNICATION_FAILURE
* \retval #PSA_ERROR_HARDWARE_FAILURE * \retval #PSA_ERROR_HARDWARE_FAILURE
@ -848,7 +848,7 @@ psa_status_t psa_hash_update(psa_hash_operation_t *operation,
* \retval #PSA_SUCCESS * \retval #PSA_SUCCESS
* Success. * Success.
* \retval #PSA_ERROR_BAD_STATE * \retval #PSA_ERROR_BAD_STATE
* The operation state is not valid (not started, or already completed). * The operation state is not valid (not set up, or already completed).
* \retval #PSA_ERROR_BUFFER_TOO_SMALL * \retval #PSA_ERROR_BUFFER_TOO_SMALL
* The size of the \p hash buffer is too small. You can determine a * The size of the \p hash buffer is too small. You can determine a
* sufficient buffer size by calling #PSA_HASH_SIZE(\c alg) * sufficient buffer size by calling #PSA_HASH_SIZE(\c alg)
@ -888,7 +888,7 @@ psa_status_t psa_hash_finish(psa_hash_operation_t *operation,
* The hash of the message was calculated successfully, but it * The hash of the message was calculated successfully, but it
* differs from the expected hash. * differs from the expected hash.
* \retval #PSA_ERROR_BAD_STATE * \retval #PSA_ERROR_BAD_STATE
* The operation state is not valid (not started, or already completed). * The operation state is not valid (not set up, or already completed).
* \retval #PSA_ERROR_INSUFFICIENT_MEMORY * \retval #PSA_ERROR_INSUFFICIENT_MEMORY
* \retval #PSA_ERROR_COMMUNICATION_FAILURE * \retval #PSA_ERROR_COMMUNICATION_FAILURE
* \retval #PSA_ERROR_HARDWARE_FAILURE * \retval #PSA_ERROR_HARDWARE_FAILURE
@ -979,7 +979,7 @@ typedef struct psa_mac_operation_s psa_mac_operation_t;
*/ */
static psa_mac_operation_t psa_mac_operation_init(void); static psa_mac_operation_t psa_mac_operation_init(void);
/** Start a multipart MAC calculation operation. /** Set up a multipart MAC calculation operation.
* *
* This function sets up the calculation of the MAC * This function sets up the calculation of the MAC
* (message authentication code) of a byte string. * (message authentication code) of a byte string.
@ -1037,7 +1037,7 @@ psa_status_t psa_mac_sign_setup(psa_mac_operation_t *operation,
psa_key_handle_t handle, psa_key_handle_t handle,
psa_algorithm_t alg); psa_algorithm_t alg);
/** Start a multipart MAC verification operation. /** Set up a multipart MAC verification operation.
* *
* This function sets up the verification of the MAC * This function sets up the verification of the MAC
* (message authentication code) of a byte string against an expected value. * (message authentication code) of a byte string against an expected value.
@ -1109,7 +1109,7 @@ psa_status_t psa_mac_verify_setup(psa_mac_operation_t *operation,
* \retval #PSA_SUCCESS * \retval #PSA_SUCCESS
* Success. * Success.
* \retval #PSA_ERROR_BAD_STATE * \retval #PSA_ERROR_BAD_STATE
* The operation state is not valid (not started, or already completed). * The operation state is not valid (not set up, or already completed).
* \retval #PSA_ERROR_INSUFFICIENT_MEMORY * \retval #PSA_ERROR_INSUFFICIENT_MEMORY
* \retval #PSA_ERROR_COMMUNICATION_FAILURE * \retval #PSA_ERROR_COMMUNICATION_FAILURE
* \retval #PSA_ERROR_HARDWARE_FAILURE * \retval #PSA_ERROR_HARDWARE_FAILURE
@ -1148,7 +1148,7 @@ psa_status_t psa_mac_update(psa_mac_operation_t *operation,
* \retval #PSA_SUCCESS * \retval #PSA_SUCCESS
* Success. * Success.
* \retval #PSA_ERROR_BAD_STATE * \retval #PSA_ERROR_BAD_STATE
* The operation state is not valid (not started, or already completed). * The operation state is not valid (not set up, or already completed).
* \retval #PSA_ERROR_BUFFER_TOO_SMALL * \retval #PSA_ERROR_BUFFER_TOO_SMALL
* The size of the \p mac buffer is too small. You can determine a * The size of the \p mac buffer is too small. You can determine a
* sufficient buffer size by calling PSA_MAC_FINAL_SIZE(). * sufficient buffer size by calling PSA_MAC_FINAL_SIZE().
@ -1187,7 +1187,7 @@ psa_status_t psa_mac_sign_finish(psa_mac_operation_t *operation,
* The MAC of the message was calculated successfully, but it * The MAC of the message was calculated successfully, but it
* differs from the expected MAC. * differs from the expected MAC.
* \retval #PSA_ERROR_BAD_STATE * \retval #PSA_ERROR_BAD_STATE
* The operation state is not valid (not started, or already completed). * The operation state is not valid (not set up, or already completed).
* \retval #PSA_ERROR_INSUFFICIENT_MEMORY * \retval #PSA_ERROR_INSUFFICIENT_MEMORY
* \retval #PSA_ERROR_COMMUNICATION_FAILURE * \retval #PSA_ERROR_COMMUNICATION_FAILURE
* \retval #PSA_ERROR_HARDWARE_FAILURE * \retval #PSA_ERROR_HARDWARE_FAILURE
@ -1303,8 +1303,7 @@ static psa_cipher_operation_t psa_cipher_operation_init(void);
* After a successful call to psa_cipher_encrypt_setup(), the application must * After a successful call to psa_cipher_encrypt_setup(), the application must
* eventually terminate the operation. The following events terminate an * eventually terminate the operation. The following events terminate an
* operation: * operation:
* - A failed call to psa_cipher_generate_iv(), psa_cipher_set_iv() * - A failed call to any of the \c psa_cipher_xxx functions.
* or psa_cipher_update().
* - A call to psa_cipher_finish() or psa_cipher_abort(). * - A call to psa_cipher_finish() or psa_cipher_abort().
* *
* \param[in,out] operation The operation object to set up. It must have * \param[in,out] operation The operation object to set up. It must have
@ -1349,7 +1348,7 @@ psa_status_t psa_cipher_encrypt_setup(psa_cipher_operation_t *operation,
* documentation for #psa_cipher_operation_t, e.g. * documentation for #psa_cipher_operation_t, e.g.
* PSA_CIPHER_OPERATION_INIT. * PSA_CIPHER_OPERATION_INIT.
* -# Call psa_cipher_decrypt_setup() to specify the algorithm and key. * -# Call psa_cipher_decrypt_setup() to specify the algorithm and key.
* -# Call psa_cipher_update() with the IV (initialization vector) for the * -# Call psa_cipher_set_iv() with the IV (initialization vector) for the
* decryption. If the IV is prepended to the ciphertext, you can call * decryption. If the IV is prepended to the ciphertext, you can call
* psa_cipher_update() on a buffer containing the IV followed by the * psa_cipher_update() on a buffer containing the IV followed by the
* beginning of the message. * beginning of the message.
@ -1363,7 +1362,7 @@ psa_status_t psa_cipher_encrypt_setup(psa_cipher_operation_t *operation,
* After a successful call to psa_cipher_decrypt_setup(), the application must * After a successful call to psa_cipher_decrypt_setup(), the application must
* eventually terminate the operation. The following events terminate an * eventually terminate the operation. The following events terminate an
* operation: * operation:
* - A failed call to psa_cipher_update(). * - A failed call to any of the \c psa_cipher_xxx functions.
* - A call to psa_cipher_finish() or psa_cipher_abort(). * - A call to psa_cipher_finish() or psa_cipher_abort().
* *
* \param[in,out] operation The operation object to set up. It must have * \param[in,out] operation The operation object to set up. It must have
@ -1418,7 +1417,7 @@ psa_status_t psa_cipher_decrypt_setup(psa_cipher_operation_t *operation,
* \retval #PSA_SUCCESS * \retval #PSA_SUCCESS
* Success. * Success.
* \retval #PSA_ERROR_BAD_STATE * \retval #PSA_ERROR_BAD_STATE
* The operation state is not valid (not started, or IV already set). * The operation state is not valid (not set up, or IV already set).
* \retval #PSA_ERROR_BUFFER_TOO_SMALL * \retval #PSA_ERROR_BUFFER_TOO_SMALL
* The size of the \p iv buffer is too small. * The size of the \p iv buffer is too small.
* \retval #PSA_ERROR_INSUFFICIENT_MEMORY * \retval #PSA_ERROR_INSUFFICIENT_MEMORY
@ -1433,7 +1432,7 @@ psa_status_t psa_cipher_generate_iv(psa_cipher_operation_t *operation,
/** Set the IV for a symmetric encryption or decryption operation. /** Set the IV for a symmetric encryption or decryption operation.
* *
* This function sets the random IV (initialization vector), nonce * This function sets the IV (initialization vector), nonce
* or initial counter value for the encryption or decryption operation. * or initial counter value for the encryption or decryption operation.
* *
* The application must call psa_cipher_encrypt_setup() before * The application must call psa_cipher_encrypt_setup() before
@ -1452,7 +1451,7 @@ psa_status_t psa_cipher_generate_iv(psa_cipher_operation_t *operation,
* \retval #PSA_SUCCESS * \retval #PSA_SUCCESS
* Success. * Success.
* \retval #PSA_ERROR_BAD_STATE * \retval #PSA_ERROR_BAD_STATE
* The operation state is not valid (not started, or IV already set). * The operation state is not valid (not set up, or IV already set).
* \retval #PSA_ERROR_INVALID_ARGUMENT * \retval #PSA_ERROR_INVALID_ARGUMENT
* The size of \p iv is not acceptable for the chosen algorithm, * The size of \p iv is not acceptable for the chosen algorithm,
* or the chosen algorithm does not use an IV. * or the chosen algorithm does not use an IV.
@ -1488,7 +1487,7 @@ psa_status_t psa_cipher_set_iv(psa_cipher_operation_t *operation,
* \retval #PSA_SUCCESS * \retval #PSA_SUCCESS
* Success. * Success.
* \retval #PSA_ERROR_BAD_STATE * \retval #PSA_ERROR_BAD_STATE
* The operation state is not valid (not started, IV required but * The operation state is not valid (not set up, IV required but
* not set, or already completed). * not set, or already completed).
* \retval #PSA_ERROR_BUFFER_TOO_SMALL * \retval #PSA_ERROR_BUFFER_TOO_SMALL
* The size of the \p output buffer is too small. * The size of the \p output buffer is too small.
@ -1526,7 +1525,7 @@ psa_status_t psa_cipher_update(psa_cipher_operation_t *operation,
* \retval #PSA_SUCCESS * \retval #PSA_SUCCESS
* Success. * Success.
* \retval #PSA_ERROR_BAD_STATE * \retval #PSA_ERROR_BAD_STATE
* The operation state is not valid (not started, IV required but * The operation state is not valid (not set up, IV required but
* not set, or already completed). * not set, or already completed).
* \retval #PSA_ERROR_BUFFER_TOO_SMALL * \retval #PSA_ERROR_BUFFER_TOO_SMALL
* The size of the \p output buffer is too small. * The size of the \p output buffer is too small.