aessss. q&d combination of aes and ssss.

aessss.sh

#!/bin/bash

for i in $*; do
    HASH=$(openssl dgst -sha256 -binary < "$i" | perl -ne'map{printf("%02x",ord($_))} split//')
    KEY=$(dd if=/dev/random bs=1 count=32 | perl -ne'map{printf("%02x",ord($_))} split//')
    echo -n "$KEY" | openssl aes256 -aes-256-xts -e -pass stdin -in "$i" -out "${HASH}.bin"
    echo -n "$KEY" | ssss-split -x -t 3 -n 4 -w "$HASH" -q | split --lines=1 --numeric-suffixes=1 --suffix-length=1 - "$HASH-"
done