wolfBoot/tools/scripts/prepare_encrypted_delta_upd...

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#!/bin/bash
SIGN_TOOL="python3 ./tools/keytools/sign.py"
if [ -f "./tools/keytools/sign" ]; then
SIGN_TOOL="./tools/keytools/sign"
fi
# SIZE is WOLFBOOT_PARTITION_SIZE - 49 (44B: key + nonce, 5B: "pBOOT")
SIZE=131023
VERSION=7
APP=test-app/image_v"$VERSION"_signed_diff_encrypted.bin
# Create test key
echo -n "0123456789abcdef0123456789abcdef0123456789ab" > enc_key.der
$SIGN_TOOL --ecc256 \
--encrypt enc_key.der \
--delta test-app/image_v1_signed.bin \
test-app/image.bin wolfboot_signing_private_key.der $VERSION
dd if=/dev/zero bs=$SIZE count=1 2>/dev/null | tr "\000" "\377" > update.bin
dd if=$APP of=update.bin bs=1 conv=notrunc
printf "pBOOT" >> update.bin