diff --git a/library/hash_info.c b/library/hash_info.c
index c3a81cf..19afae8 100644
--- a/library/hash_info.c
+++ b/library/hash_info.c
@@ -22,6 +22,7 @@
 
 #include "hash_info.h"
 #include "legacy_or_psa.h"
+#include "error.h"
 
 typedef struct
 {
@@ -107,3 +108,20 @@
 
     return entry->md_type;
 }
+
+int mbedtls_md_error_from_psa( psa_status_t status )
+{
+    switch( status )
+    {
+        case PSA_SUCCESS:
+            return( 0 );
+        case PSA_ERROR_NOT_SUPPORTED:
+            return( MBEDTLS_ERR_MD_FEATURE_UNAVAILABLE );
+        case PSA_ERROR_INVALID_ARGUMENT:
+            return( MBEDTLS_ERR_MD_BAD_INPUT_DATA );
+        case PSA_ERROR_INSUFFICIENT_MEMORY:
+            return( MBEDTLS_ERR_MD_ALLOC_FAILED );
+        default:
+            return( MBEDTLS_ERR_PLATFORM_HW_ACCEL_FAILED );
+    }
+}