Replace mbedtls_platform_enforce_volatile_reads
Replace function mbedtls_platform_enforce_volatile_reads() with
mbedtls_platform_random_delay().
diff --git a/tinycrypt/ecc_dsa.c b/tinycrypt/ecc_dsa.c
index ca071f8..c19c73e 100644
--- a/tinycrypt/ecc_dsa.c
+++ b/tinycrypt/ecc_dsa.c
@@ -299,7 +299,7 @@
/* Accept only if v == r. */
diff = uECC_vli_equal(rx, r);
if (diff == 0) {
- mbedtls_platform_enforce_volatile_reads();
+ mbedtls_platform_random_delay( 50 );
if (diff == 0) {
return UECC_SUCCESS;
}