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https://github.com/Mbed-TLS/mbedtls.git
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d021197060
Include more curves. For example, the Brainpool curves don't have dedicated "mod p" reduction routines, so they have a much larger number of allocs (comparable to the NIST curves with `MBEDTLS_ECP_NIST_OPTIM` disabled). On the other hand, to keep the script's running time reasonable, remove a few things: - curves smaller than 256 bits (out of favour these days) - window sizes larger than the default: 6 was particularly useless as it's never selected by the current code; 5 can only be selected with curves >= 384 and is unlikely to be used in practice as it increases heap usage quite a lot for very little performance gain. Signed-off-by: Manuel Pégourié-Gonnard <manuel.pegourie-gonnard@arm.com>
103 lines
2.8 KiB
Bash
Executable File
103 lines
2.8 KiB
Bash
Executable File
#!/bin/sh
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# Measure heap usage (and performance) of ECC operations with various values of
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# the relevant tunable compile-time parameters.
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#
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# Usage (preferably on a 32-bit platform):
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# cmake -D CMAKE_BUILD_TYPE=Release .
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# scripts/ecc-heap.sh | tee ecc-heap.log
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#
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# Copyright The Mbed TLS Contributors
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# SPDX-License-Identifier: Apache-2.0
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#
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# Licensed under the Apache License, Version 2.0 (the "License"); you may
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# not use this file except in compliance with the License.
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# You may obtain a copy of the License at
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#
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# http://www.apache.org/licenses/LICENSE-2.0
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#
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# Unless required by applicable law or agreed to in writing, software
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# distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
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# WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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# See the License for the specific language governing permissions and
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# limitations under the License.
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set -eu
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CONFIG_H='include/mbedtls/config.h'
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if [ -r $CONFIG_H ]; then :; else
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echo "$CONFIG_H not found" >&2
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exit 1
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fi
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if grep -i cmake Makefile >/dev/null; then :; else
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echo "Needs Cmake" >&2
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exit 1
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fi
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if git status | grep -F $CONFIG_H >/dev/null 2>&1; then
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echo "config.h not clean" >&2
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exit 1
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fi
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CONFIG_BAK=${CONFIG_H}.bak
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cp $CONFIG_H $CONFIG_BAK
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cat << EOF >$CONFIG_H
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#define MBEDTLS_PLATFORM_C
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#define MBEDTLS_PLATFORM_MEMORY
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#define MBEDTLS_MEMORY_BUFFER_ALLOC_C
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#define MBEDTLS_MEMORY_DEBUG
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#define MBEDTLS_TIMING_C
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#define MBEDTLS_BIGNUM_C
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#define MBEDTLS_ECP_C
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#define MBEDTLS_ECP_NO_INTERNAL_RNG
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#define MBEDTLS_ASN1_PARSE_C
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#define MBEDTLS_ASN1_WRITE_C
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#define MBEDTLS_ECDSA_C
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#define MBEDTLS_SHA256_C // ECDSA benchmark needs it
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#define MBEDTLS_SHA224_C // SHA256 requires this for now
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#define MBEDTLS_ECDH_C
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// NIST curves >= 256 bits
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#define MBEDTLS_ECP_DP_SECP256R1_ENABLED
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#define MBEDTLS_ECP_DP_SECP384R1_ENABLED
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#define MBEDTLS_ECP_DP_SECP521R1_ENABLED
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// SECP "koblitz-like" curve >= 256 bits
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#define MBEDTLS_ECP_DP_SECP256K1_ENABLED
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// Brainpool curves (no specialised "mod p" routine)
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#define MBEDTLS_ECP_DP_BP256R1_ENABLED
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#define MBEDTLS_ECP_DP_BP384R1_ENABLED
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#define MBEDTLS_ECP_DP_BP512R1_ENABLED
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// Montgomery curves
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#define MBEDTLS_ECP_DP_CURVE25519_ENABLED
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#define MBEDTLS_ECP_DP_CURVE448_ENABLED
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#include "check_config.h"
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#define MBEDTLS_HAVE_ASM // just make things a bit faster
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#define MBEDTLS_ECP_NIST_OPTIM // faster and less allocations
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//#define MBEDTLS_ECP_WINDOW_SIZE 4
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//#define MBEDTLS_ECP_FIXED_POINT_OPTIM 1
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EOF
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for F in 0 1; do
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for W in 2 3 4; do
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scripts/config.py set MBEDTLS_ECP_WINDOW_SIZE $W
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scripts/config.py set MBEDTLS_ECP_FIXED_POINT_OPTIM $F
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make benchmark >/dev/null 2>&1
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echo "fixed point optim = $F, max window size = $W"
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echo "--------------------------------------------"
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programs/test/benchmark ecdh ecdsa
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done
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done
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# cleanup
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mv $CONFIG_BAK $CONFIG_H
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make clean
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