Fix issues in CC310 cc_internal discovered by OTT

Ron Eldor · Ron Eldor · commit c948eaad2164 · 2018-11-26T15:09:00.000+02:00
Return `MBEDTLS_ERR_ECP_INVALID_KEY` when Cryptocell returns
`CRYS_ECPKI_BUILD_KEY_INVALID_PRIV_KEY_SIZE_ERROR`
or `CRYS_ECPKI_BUILD_KEY_INVALID_PUBL_KEY_SIZE_ERROR`,
When the key size is invalid. Found by the "ECDSA zero private parameter"
tests.
diff --git a/features/cryptocell/FEATURE_CRYPTOCELL310/cc_internal.c b/features/cryptocell/FEATURE_CRYPTOCELL310/cc_internal.c
@@ -143,6 +143,8 @@ int convert_CrysError_to_mbedtls_err( CRYSError_t Crys_err )
     case CRYS_ECPKI_GEN_KEY_INVALID_PRIVATE_KEY_PTR_ERROR:
     case CRYS_ECPKI_EXPORT_PUBL_KEY_INVALID_PUBL_KEY_DATA_ERROR:
     case CRYS_ECPKI_BUILD_KEY_INVALID_PRIV_KEY_DATA_ERROR:
+    case CRYS_ECPKI_BUILD_KEY_INVALID_PRIV_KEY_SIZE_ERROR:
+    case CRYS_ECPKI_BUILD_KEY_INVALID_PUBL_KEY_SIZE_ERROR:
         return ( MBEDTLS_ERR_ECP_INVALID_KEY );
 
     default:
