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@@ -1,4 +1,3 @@
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-
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#define NO_MAIN_DRIVER
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#define BENCH_EMBEDDED
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#define NO_WRITEV
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@@ -17,10 +16,59 @@
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#define WOLFSSL_GENSEED_FORTEST /* Warning: define your own seed gen */
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-#define TFM_TIMING_RESISTANT
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+/* A few examples of different math options below.
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+ *
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+ * See examples/configs/user_settings_template.h for a more
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+ * detailed template. */
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+#if 1
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+ /* Use only single precision (SP) math and algorithms.
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+ * SP math is written to accelerate specific/common key
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+ * sizes and curves. This adds code from sp_c32.c, or one of the specific
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+ * assembly implementations like sp_cortexm.c. This code is faster than the
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+ * multi-precision support because it's optimized for the key/curve.
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+ * The SP math can be used together with any multi-precision math library
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+ * if WOLFSSL_SP_MATH is removed. If only standard keys/curves are being
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+ * used the multi-precision math is not required.
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+ */
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+ #define WOLFSSL_SP_MATH
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+ /* Enable SP ECC support */
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+ #define WOLFSSL_HAVE_SP_ECC
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+ /* Enable SP RSA support */
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+ #define WOLFSSL_HAVE_SP_RSA
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+ /* Enable SP DH support */
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+ #define WOLFSSL_HAVE_SP_DH
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+ /* Reduce stack use specifically in SP implementation. */
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+ #define WOLFSSL_SP_SMALL_STACK
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+ /* use smaller version of code */
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+ #define WOLFSSL_SP_SMALL
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+ /* Assembly optimized version - sp_cortexm.c */
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+ //#define WOLFSSL_SP_ARM_CORTEX_M_ASM
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+#elif 1
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+ /* Use SP math for all key sizes and curves. This will use
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+ * the multi-precision (MP) math implementation in sp_int.c */
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+ #define WOLFSSL_SP_MATH_ALL
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+ /* Disable use of dynamic stack items */
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+ #define WOLFSSL_SP_NO_DYN_STACK
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+ /* use smaller version of code */
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+ #define WOLFSSL_SP_SMALL
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+#elif 1
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+ /* Fast Math (tfm.c) (stack based and timing resistant) */
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+ #define USE_FAST_MATH
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+ /* Enable Fast Math Timing Resistance */
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+ #define TFM_TIMING_RESISTANT
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+#else
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+ /* Normal (integer.c) (heap based, not timing resistant) - not recommended*/
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+ #define USE_INTEGER_HEAP_MATH
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+#endif
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+
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+/* Enable ECC Timing Resistance */
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#define ECC_TIMING_RESISTANT
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+/* Enables blinding mode, to prevent timing attacks */
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#define WC_RSA_BLINDING
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+/* reduce stack use. For variables over 100 bytes allocate from heap */
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+#define WOLFSSL_SMALL_STACK
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+/* disable mutex locking */
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#define SINGLE_THREADED /* or define RTOS option */
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/* #define WOLFSSL_CMSIS_RTOS */
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#define NO_FILESYSTEM
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jordan