diff --git a/library/psa_crypto_hash.h b/library/psa_crypto_hash.h
index 0181b4e..57dadc3 100644
--- a/library/psa_crypto_hash.h
+++ b/library/psa_crypto_hash.h
@@ -76,6 +76,11 @@
 
 /** Calculate the hash (digest) of a message using Mbed TLS routines.
  *
+ * \note The signature of this function is that of a PSA driver hash_compute
+ *       entry point. This function behaves as a hash_compute entry point as
+ *       defined in the PSA driver interface specification for transparent
+ *       drivers.
+ *
  * \param alg               The hash algorithm to compute (\c PSA_ALG_XXX value
  *                          such that #PSA_ALG_IS_HASH(\p alg) is true).
  * \param[in] input         Buffer containing the message to hash.
@@ -89,15 +94,11 @@
  * \retval #PSA_SUCCESS
  *         Success.
  * \retval #PSA_ERROR_NOT_SUPPORTED
- *         \p alg is not supported or is not a hash algorithm.
- * \retval #PSA_ERROR_INVALID_ARGUMENT
+ *         \p alg is not supported
  * \retval #PSA_ERROR_BUFFER_TOO_SMALL
  *         \p hash_size is too small
  * \retval #PSA_ERROR_INSUFFICIENT_MEMORY
- * \retval #PSA_ERROR_COMMUNICATION_FAILURE
- * \retval #PSA_ERROR_HARDWARE_FAILURE
  * \retval #PSA_ERROR_CORRUPTION_DETECTED
- * \retval #PSA_ERROR_INSUFFICIENT_MEMORY
  */
 psa_status_t mbedtls_psa_hash_compute(
     psa_algorithm_t alg,
@@ -109,6 +110,11 @@
 
 /** Set up a multipart hash operation using Mbed TLS routines.
  *
+ * \note The signature of this function is that of a PSA driver hash_setup
+ *       entry point. This function behaves as a hash_setup entry point as
+ *       defined in the PSA driver interface specification for transparent
+ *       drivers.
+ *
  * If an error occurs at any step after a call to mbedtls_psa_hash_setup(), the
  * operation will need to be reset by a call to mbedtls_psa_hash_abort(). The
  * core may call mbedtls_psa_hash_abort() at any time after the operation
@@ -128,7 +134,7 @@
  * \retval #PSA_SUCCESS
  *         Success.
  * \retval #PSA_ERROR_NOT_SUPPORTED
- *         \p alg is not a supported hash algorithm.
+ *         \p alg is not supported
  * \retval #PSA_ERROR_BAD_STATE
  *         The operation state is not valid (it must be inactive).
  * \retval #PSA_ERROR_INSUFFICIENT_MEMORY
@@ -140,6 +146,11 @@
 
 /** Clone an Mbed TLS hash operation.
  *
+ * \note The signature of this function is that of a PSA driver hash_clone
+ *       entry point. This function behaves as a hash_clone entry point as
+ *       defined in the PSA driver interface specification for transparent
+ *       drivers.
+ *
  * This function copies the state of an ongoing hash operation to
  * a new operation object. In other words, this function is equivalent
  * to calling mbedtls_psa_hash_setup() on \p target_operation with the same
@@ -167,6 +178,11 @@
 
 /** Add a message fragment to a multipart Mbed TLS hash operation.
  *
+ * \note The signature of this function is that of a PSA driver hash_update
+ *       entry point. This function behaves as a hash_update entry point as
+ *       defined in the PSA driver interface specification for transparent
+ *       drivers.
+ *
  * The application must call mbedtls_psa_hash_setup() before calling this function.
  *
  * If this function returns an error status, the operation enters an error
@@ -179,7 +195,7 @@
  * \retval #PSA_SUCCESS
  *         Success.
  * \retval #PSA_ERROR_BAD_STATE
- *         The operation state is not valid (it muct be active).
+ *         The operation state is not valid (it must be active).
  * \retval #PSA_ERROR_INSUFFICIENT_MEMORY
  * \retval #PSA_ERROR_CORRUPTION_DETECTED
  */
@@ -190,6 +206,11 @@
 
 /** Finish the calculation of the Mbed TLS-calculated hash of a message.
  *
+ * \note The signature of this function is that of a PSA driver hash_finish
+ *       entry point. This function behaves as a hash_finish entry point as
+ *       defined in the PSA driver interface specification for transparent
+ *       drivers.
+ *
  * The application must call mbedtls_psa_hash_setup() before calling this function.
  * This function calculates the hash of the message formed by concatenating
  * the inputs passed to preceding calls to mbedtls_psa_hash_update().
@@ -225,6 +246,11 @@
 
 /** Abort an Mbed TLS hash operation.
  *
+ * \note The signature of this function is that of a PSA driver hash_abort
+ *       entry point. This function behaves as a hash_abort entry point as
+ *       defined in the PSA driver interface specification for transparent
+ *       drivers.
+ *
  * Aborting an operation frees all associated resources except for the
  * \p operation structure itself. Once aborted, the operation object
  * can be reused for another operation by calling