Add missing error code documentation
Signed-off-by: gabor-mezei-arm <gabor.mezei@arm.com>
diff --git a/include/psa/crypto_values.h b/include/psa/crypto_values.h
index 580b89e..cf7a0e1 100644
--- a/include/psa/crypto_values.h
+++ b/include/psa/crypto_values.h
@@ -270,6 +270,30 @@
*/
#define PSA_ERROR_INVALID_HANDLE ((psa_status_t)-136)
+/** Stored data has been corrupted.
+ *
+ * This error indicates that some persistent storage has suffered corruption.
+ * It does not indicate the following situations, which have specific error
+ * codes:
+ *
+ * - A corruption of volatile memory - use #PSA_ERROR_CORRUPTION_DETECTED.
+ * - A communication error between the cryptoprocessor and its external
+ * storage - use #PSA_ERROR_COMMUNICATION_FAILURE.
+ * - When the storage is in a valid state but is full - use
+ * #PSA_ERROR_INSUFFICIENT_STORAGE.
+ * - When the storage fails for other reasons - use
+ * #PSA_ERROR_STORAGE_FAILURE.
+ * - When the stored data is not valid - use #PSA_ERROR_DATA_INVALID.
+ *
+ * \note A storage corruption does not indicate that any data that was
+ * previously read is invalid. However this previously read data might no
+ * longer be readable from storage.
+ *
+ * When a storage failure occurs, it is no longer possible to ensure the
+ * global integrity of the keystore.
+ */
+#define PSA_ERROR_DATA_CORRUPT ((psa_status_t)-152)
+
/**@}*/
/** \defgroup crypto_types Key and algorithm types