commit a0f625ac9a8e9461c252acd8039f7b5cac3693ab
author Jaeden Amero <jaeden.amero@arm.com> Fri Feb 15 13:52:25 2019 +0000
committer Jaeden Amero <jaeden.amero@arm.com> Wed Feb 20 15:27:41 2019 +0000
tree d6df837cbbd2d115363b837c0eac9e32841cc833
parent ab43997f44b03c2299e3c56f168a0b74c60a6d9f

psa: Disallow use of invalid hash contexts

If a hash context has not been set up, fail with PSA_ERROR_BAD_STATE as
documented in crypto.h and the PSA Crypto specification.

library/psa_crypto.c

diff --git a/library/psa_crypto.c b/library/psa_crypto.c
index 4075c65..1f96ae0 100644
--- a/library/psa_crypto.c
+++ b/library/psa_crypto.c
@@ -1502,8 +1502,7 @@
             break;
 #endif
         default:
-            ret = MBEDTLS_ERR_MD_BAD_INPUT_DATA;
-            break;
+            return( PSA_ERROR_BAD_STATE );
     }
 
     if( ret != 0 )
@@ -1575,8 +1574,7 @@
             break;
 #endif
         default:
-            ret = MBEDTLS_ERR_MD_BAD_INPUT_DATA;
-            break;
+            return( PSA_ERROR_BAD_STATE );
     }
     status = mbedtls_to_psa_error( ret );