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#!/bin/sh
cleanup() {
rm -f $tmp
umask $sumask
exit 0
}
if [ $# -ne 1 ]; then
echo "usage: encrypt.sh <myfile>"
exit 1
fi
myfile=$1
myfilename=`basename $myfile`
sumask=$(umask)
umask 077
tmp=`mktemp ./jsaXXXXXXXX`
trap cleanup INT TERM EXIT
echo -n "Enter passphrase used to encrypt: "
read pass
dirhash=`echo -n $pass |openssl rmd160 |cut -d' ' -f2`
dir="jsa/files/$dirhash"
file=`echo -n ${dirhash}${myfilename} |openssl rmd160 |cut -d' ' -f2`
echo $dir
mkdir -p $dir
touch $dir/index.html
base64 -w0 $myfile > $tmp
echo -n $pass |openssl enc -e -a -aes-256-cbc -in $tmp -out $dir/$file -pass stdin ||exit $?
echo "CREATED $dir/$file"
if [ -f $dir/index.txt ]; then
echo -n $pass |openssl enc -d -a -aes-256-cbc -in $dir/index.txt -out $tmp -pass stdin ||exit $?
else
echo > $tmp
fi
echo $myfilename >> $tmp
rm -f $dir/index.txt
echo -n $pass |openssl enc -e -a -aes-256-cbc -in $tmp -out $dir/index.txt -pass stdin ||exit $?
echo "UPDATED $dir/index.txt"
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