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#!/bin/sh
# $OpenBSD: moduli-gen.sh,v 1.5 2020/02/27 02:32:37 dtucker Exp $
#
srcdir="$1"
objdir="$2"
bits="$3"
moduli_sieved=${objdir}/moduli.${bits}.sieved.gz
moduli_tested=${objdir}/moduli.${bits}.tested
moduli_part=${srcdir}/moduli.${bits}
if [ ! -d ${objdir} ]; then
mkdir ${objdir}
fi
if [ -f ${moduli_part} ]; then
exit 0
fi
if [ ! -f ${moduli_sieved} ]; then
for i in 0 1;
do ssh-keygen -M generate -O bits=${bits} /dev/stdout;
done | gzip -9c >${moduli_sieved}.tmp && \
mv ${moduli_sieved}.tmp ${moduli_sieved}
fi
lines=`gzip -dc ${moduli_sieved} | wc -l`
lines=`echo $lines` # remove leading space
gzip -dc ${moduli_sieved} | \
ssh-keygen -M screen -O checkpoint=${moduli_tested}.ckpt \
-O lines=${lines} ${moduli_tested} && \
mv ${objdir}/moduli.${bits}.tested ${srcdir}/moduli.${bits}
exit 0
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