commit 61f412eb587dcb842c9388b93505bc078a58aac4
author Teppo Järvelin <teppo.jarvelin@arm.com> Thu Oct 03 12:25:22 2019 +0300
committer Teppo Järvelin <teppo.jarvelin@arm.com> Thu Oct 03 13:14:33 2019 +0300
tree aeec04ea080257880d100f8e848b7d91bbe739e1
parent 51f65e4b86f59c7976168eeb61dbe16bbda88356

Changed every memcmp to SCA equivalent mbedtls_platform_memcmp

This makes physical attacks more difficult.
Selftest memcmp functions were not changed.

include/mbedtls/asn1.h

diff --git a/include/mbedtls/asn1.h b/include/mbedtls/asn1.h
index 7c97d79..adab7a1 100644
--- a/include/mbedtls/asn1.h
+++ b/include/mbedtls/asn1.h
@@ -130,11 +130,11 @@
  */
 #define MBEDTLS_OID_CMP(oid_str, oid_buf)                                   \
         ( ( MBEDTLS_OID_SIZE(oid_str) != (oid_buf)->len ) ||                \
-          memcmp( (oid_str), (oid_buf)->p, (oid_buf)->len) != 0 )
+          mbedtls_platform_memcmp( (oid_str), (oid_buf)->p, (oid_buf)->len) != 0 )
 
 #define MBEDTLS_OID_CMP_RAW(oid_str, oid_buf, oid_buf_len)                  \
         ( ( MBEDTLS_OID_SIZE(oid_str) != (oid_buf_len) ) ||                 \
-          memcmp( (oid_str), (oid_buf), (oid_buf_len) ) != 0 )
+          mbedtls_platform_memcmp( (oid_str), (oid_buf), (oid_buf_len) ) != 0 )
 
 #ifdef __cplusplus
 extern "C" {