1 files changed, 89 insertions, 0 deletions
diff --git a/lib/mbedtls-2.27.0/scripts/ecc-heap.sh b/lib/mbedtls-2.27.0/scripts/ecc-heap.sh
new file mode 100755
index 0000000..8d1beee
--- /dev/null
+++ b/lib/mbedtls-2.27.0/scripts/ecc-heap.sh
@@ -0,0 +1,89 @@
+#!/bin/sh
+
+# Measure heap usage (and performance) of ECC operations with various values of
+# the relevant tunable compile-time parameters.
+#
+# Usage (preferably on a 32-bit platform):
+# cmake -D CMAKE_BUILD_TYPE=Release .
+# scripts/ecc-heap.sh | tee ecc-heap.log
+#
+# Copyright The Mbed TLS Contributors
+# SPDX-License-Identifier: Apache-2.0
+#
+# Licensed under the Apache License, Version 2.0 (the "License"); you may
+# not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+# http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
+# WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
+set -eu
+
+CONFIG_H='include/mbedtls/config.h'
+
+if [ -r $CONFIG_H ]; then :; else
+    echo "$CONFIG_H not found" >&2
+    exit 1
+fi
+
+if grep -i cmake Makefile >/dev/null; then :; else
+    echo "Needs Cmake" >&2
+    exit 1
+fi
+
+if git status | grep -F $CONFIG_H >/dev/null 2>&1; then
+    echo "config.h not clean" >&2
+    exit 1
+fi
+
+CONFIG_BAK=${CONFIG_H}.bak
+cp $CONFIG_H $CONFIG_BAK
+
+cat << EOF >$CONFIG_H
+#define MBEDTLS_PLATFORM_C
+#define MBEDTLS_PLATFORM_MEMORY
+#define MBEDTLS_MEMORY_BUFFER_ALLOC_C
+#define MBEDTLS_MEMORY_DEBUG
+
+#define MBEDTLS_TIMING_C
+
+#define MBEDTLS_BIGNUM_C
+#define MBEDTLS_ECP_C
+#define MBEDTLS_ASN1_PARSE_C
+#define MBEDTLS_ASN1_WRITE_C
+#define MBEDTLS_ECDSA_C
+#define MBEDTLS_ECDH_C
+
+#define MBEDTLS_ECP_DP_SECP192R1_ENABLED
+#define MBEDTLS_ECP_DP_SECP224R1_ENABLED
+#define MBEDTLS_ECP_DP_SECP256R1_ENABLED
+#define MBEDTLS_ECP_DP_SECP384R1_ENABLED
+#define MBEDTLS_ECP_DP_SECP521R1_ENABLED
+#define MBEDTLS_ECP_DP_CURVE25519_ENABLED
+
+#include "check_config.h"
+
+//#define MBEDTLS_ECP_WINDOW_SIZE            6
+//#define MBEDTLS_ECP_FIXED_POINT_OPTIM      1
+EOF
+
+for F in 0 1; do
+    for W in 2 3 4 5 6; do
+        scripts/config.py set MBEDTLS_ECP_WINDOW_SIZE $W
+        scripts/config.py set MBEDTLS_ECP_FIXED_POINT_OPTIM $F
+        make benchmark >/dev/null 2>&1
+        echo "fixed point optim = $F, max window size = $W"
+        echo "--------------------------------------------"
+        programs/test/benchmark
+    done
+done
+
+# cleanup
+
+mv $CONFIG_BAK $CONFIG_H
+make clean