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git://anongit.mindrot.org/openssh.git
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36b00d3183
OpenBSD-Commit-ID: 1ec524ff2fbb9387d731601437c82008f35a60f4
87 lines
2.8 KiB
Bash
87 lines
2.8 KiB
Bash
#!/bin/sh
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# $OpenBSD: sntrup761.sh,v 1.7 2023/01/11 02:13:52 djm Exp $
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# Placed in the Public Domain.
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#
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AUTHOR="supercop-20201130/crypto_kem/sntrup761/ref/implementors"
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FILES="
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supercop-20201130/crypto_sort/int32/portable4/int32_minmax.inc
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supercop-20201130/crypto_sort/int32/portable4/sort.c
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supercop-20201130/crypto_sort/uint32/useint32/sort.c
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supercop-20201130/crypto_kem/sntrup761/ref/uint32.c
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supercop-20201130/crypto_kem/sntrup761/ref/int32.c
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supercop-20201130/crypto_kem/sntrup761/ref/paramsmenu.h
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supercop-20201130/crypto_kem/sntrup761/ref/params.h
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supercop-20201130/crypto_kem/sntrup761/ref/Decode.h
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supercop-20201130/crypto_kem/sntrup761/ref/Decode.c
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supercop-20201130/crypto_kem/sntrup761/ref/Encode.h
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supercop-20201130/crypto_kem/sntrup761/ref/Encode.c
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supercop-20201130/crypto_kem/sntrup761/ref/kem.c
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"
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###
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set -e
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cd $1
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echo -n '/* $'
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echo 'OpenBSD: $ */'
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echo
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echo '/*'
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echo ' * Public Domain, Authors:'
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sed -e '/Alphabetical order:/d' -e 's/^/ * - /' < $AUTHOR
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echo ' */'
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echo
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echo '#include <string.h>'
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echo '#include "crypto_api.h"'
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echo
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# Map the types used in this code to the ones in crypto_api.h. We use #define
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# instead of typedef since some systems have existing intXX types and do not
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# permit multiple typedefs even if they do not conflict.
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for t in int8 uint8 int16 uint16 int32 uint32 int64 uint64; do
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echo "#define $t crypto_${t}"
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done
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echo
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for i in $FILES; do
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echo "/* from $i */"
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# Changes to all files:
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# - remove all includes, we inline everything required.
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# - make functions not required elsewhere static.
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# - rename the functions we do use.
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# - remove unnecessary defines and externs.
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sed -e "/#include/d" \
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-e "s/crypto_kem_/crypto_kem_sntrup761_/g" \
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-e "s/^void /static void /g" \
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-e "s/^int16 /static int16 /g" \
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-e "s/^uint16 /static uint16 /g" \
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-e "/^extern /d" \
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-e '/CRYPTO_NAMESPACE/d' \
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-e "/^#define int32 crypto_int32/d" \
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-e 's/[ ]*$//' \
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$i | \
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case "$i" in
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# Use int64_t for intermediate values in int32_MINMAX to prevent signed
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# 32-bit integer overflow when called by crypto_sort_uint32.
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*/int32_minmax.inc)
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sed -e "s/int32 ab = b ^ a/int64_t ab = (int64_t)b ^ (int64_t)a/" \
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-e "s/int32 c = b - a/int64_t c = (int64_t)b - (int64_t)a/"
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;;
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*/int32/portable4/sort.c)
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sed -e "s/void crypto_sort/void crypto_sort_int32/g"
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;;
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*/uint32/useint32/sort.c)
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sed -e "s/void crypto_sort/void crypto_sort_uint32/g"
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;;
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# Remove unused function to prevent warning.
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*/crypto_kem/sntrup761/ref/int32.c)
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sed -e '/ int32_div_uint14/,/^}$/d'
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;;
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# Remove unused function to prevent warning.
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*/crypto_kem/sntrup761/ref/uint32.c)
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sed -e '/ uint32_div_uint14/,/^}$/d'
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;;
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# Default: pass through.
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*)
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cat
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;;
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esac
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echo
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done
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