diff --git a/include/psa/crypto.h b/include/psa/crypto.h
index 3eaaed1..7df4f3a 100644
--- a/include/psa/crypto.h
+++ b/include/psa/crypto.h
@@ -3643,6 +3643,100 @@
     psa_key_derivation_operation_t *operation,
     mbedtls_svc_key_id_t *key);
 
+/** Compare output data from a key derivation operation to an expected value.
+ *
+ * This function calculates output bytes from a key derivation algorithm and
+ * compares those bytes to an expected value.
+ * If you view the key derivation's output as a stream of bytes, this
+ * function destructively reads the requested number of bytes from the
+ * stream before comparing them.
+ * The operation's capacity decreases by the number of bytes read.
+ *
+ * If this function returns an error status other than
+ * #PSA_ERROR_INSUFFICIENT_DATA, the operation enters an error
+ * state and must be aborted by calling psa_key_derivation_abort().
+ *
+ * \param[in,out] operation The key derivation operation object to read from.
+ * \param[in] expected_output Buffer where the output will be written.
+ * \param output_length     Length ot the expected output; this is also the
+ *                          number of bytes that will be read.
+ *
+ * \retval #PSA_SUCCESS
+ * \retval #PSA_ERROR_INVALID_SIGNATURE
+ *         The output was read successfully, but if differs from the expected
+ *         output.
+ * \retval #PSA_ERROR_INSUFFICIENT_DATA
+ *                          The operation's capacity was less than
+ *                          \p output_length bytes. Note that in this case,
+ *                          the operation's capacity is set to 0, thus
+ *                          subsequent calls to this function will not
+ *                          succeed, even with a smaller output buffer.
+ * \retval #PSA_ERROR_BAD_STATE
+ *         The operation state is not valid (it must be active and completed
+ *         all required input steps).
+ * \retval #PSA_ERROR_INSUFFICIENT_MEMORY
+ * \retval #PSA_ERROR_COMMUNICATION_FAILURE
+ * \retval #PSA_ERROR_HARDWARE_FAILURE
+ * \retval #PSA_ERROR_CORRUPTION_DETECTED
+ * \retval #PSA_ERROR_STORAGE_FAILURE
+ * \retval #PSA_ERROR_BAD_STATE
+ *         The library has not been previously initialized by psa_crypto_init().
+ *         It is implementation-dependent whether a failure to initialize
+ *         results in this error code.
+ */
+psa_status_t psa_key_derivation_verify_output_bytes(
+    psa_key_derivation_operation_t *operation,
+    const uint8_t *output,
+    size_t output_length);
+
+/** Compare output data from a key derivation operation to an expected value.
+ *
+ * This function calculates output bytes from a key derivation algorithm and
+ * compares those bytes to an expected value, provided as key of type
+ * #PSA_KEY_TYPE_RAW_DATA.
+ * If you view the key derivation's output as a stream of bytes, this
+ * function destructively reads the number of bytes corresponding the the
+ * length of the expected value from the stream before comparing them.
+ * The operation's capacity decreases by the number of bytes read.
+ *
+ * If this function returns an error status other than
+ * #PSA_ERROR_INSUFFICIENT_DATA, the operation enters an error
+ * state and must be aborted by calling psa_key_derivation_abort().
+ *
+ * \param[in,out] operation The key derivation operation object to read from.
+ * \param[in] expected      A key of type #PSA_KEY_TYPE_RAW_DATA containing
+ *                          the expected output. Its policy must include the
+ *                          #PSA_KEY_USAGE_PASSWORD_HASH_VERIFIER flag.
+ *
+ * \retval #PSA_SUCCESS
+ * \retval #PSA_ERROR_INVALID_SIGNATURE
+ *         The output was read successfully, but if differs from the expected
+ *         output.
+ * \retval #PSA_ERROR_NOT_PERMITTED
+ *         The key passed as the expected value does not allow this usage.
+ * \retval #PSA_ERROR_INSUFFICIENT_DATA
+ *                          The operation's capacity was less than
+ *                          the length of the expected value. In this case,
+ *                          the operation's capacity is set to 0, thus
+ *                          subsequent calls to this function will not
+ *                          succeed, even with a smaller output buffer.
+ * \retval #PSA_ERROR_BAD_STATE
+ *         The operation state is not valid (it must be active and completed
+ *         all required input steps).
+ * \retval #PSA_ERROR_INSUFFICIENT_MEMORY
+ * \retval #PSA_ERROR_COMMUNICATION_FAILURE
+ * \retval #PSA_ERROR_HARDWARE_FAILURE
+ * \retval #PSA_ERROR_CORRUPTION_DETECTED
+ * \retval #PSA_ERROR_STORAGE_FAILURE
+ * \retval #PSA_ERROR_BAD_STATE
+ *         The library has not been previously initialized by psa_crypto_init().
+ *         It is implementation-dependent whether a failure to initialize
+ *         results in this error code.
+ */
+psa_status_t psa_key_derivation_verify_output_bytes(
+    psa_key_derivation_operation_t *operation,
+    psa_key_id_t expected);
+
 /** Abort a key derivation operation.
  *
  * Aborting an operation frees all associated resources except for the \c