v2.2.2
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Cristian Cezar Moisés
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124 changed files with 11892 additions and 2461 deletions
137
tests/test_audit.sh
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137
tests/test_audit.sh
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#!/bin/bash
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# SPDX-License-Identifier: AGPL-3.0-or-later
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# Copyright (c) 2025-2026 Cristian Cezar Moisés
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# zupt audit test suite — double-validated security checks for zupt 2.2+
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# Each property is checked via TWO independent paths.
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ZUPT_BIN="$(realpath ./zupt)"
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TMPDIR=$(mktemp -d)
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trap "rm -rf $TMPDIR" EXIT
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cd "$TMPDIR"
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PASS=0; FAIL=0
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DCHK() {
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local name="$1" a="$2" b="$3"
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if [ "$a" = "$b" ] && [ "$a" = "1" ]; then
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echo " ✓ $name (A=$a B=$b agree)"; PASS=$((PASS+1))
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else
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echo " ✗ $name (A=$a B=$b disagree)"; FAIL=$((FAIL+1))
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fi
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}
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# Setup: SDK keys
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"$ZUPT_BIN" keygen --sdk -o k.priv > /dev/null 2>&1
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"$ZUPT_BIN" keygen --sdk -o other.priv > /dev/null 2>&1
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"$ZUPT_BIN" keygen -o legacy.key > /dev/null 2>&1
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echo " [A. Authenticated archives]"
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# A1. Wrong key rejected: SDK key vs SDK archive (path A) + Legacy key vs SDK archive (path B)
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echo "data" > input.txt
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"$ZUPT_BIN" c --pq-sdk k.priv.pub a.zupt input.txt > /dev/null 2>&1
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mkdir -p ea && (cd ea && "$ZUPT_BIN" x --pq-sdk ../other.priv ../a.zupt > /dev/null 2>&1)
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A=$([ ! -f ea/input.txt ] && echo 1 || echo 0)
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mkdir -p eb && (cd eb && "$ZUPT_BIN" x --pq legacy.key ../a.zupt > /dev/null 2>&1)
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B=$([ ! -f eb/input.txt ] && echo 1 || echo 0)
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DCHK "Wrong key rejected (SDK key + legacy key paths)" "$A" "$B"
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# A2. Tamper at byte position N detected (path A: pos 200) (path B: pos at end)
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cp a.zupt t1.zupt; cp a.zupt t2.zupt
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python3 -c "
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b = bytearray(open('t1.zupt','rb').read())
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b[200] ^= 1
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open('t1.zupt','wb').write(bytes(b))" 2>/dev/null
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python3 -c "
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b = bytearray(open('t2.zupt','rb').read())
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b[len(b)-50] ^= 1
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open('t2.zupt','wb').write(bytes(b))" 2>/dev/null
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mkdir -p t1e && (cd t1e && "$ZUPT_BIN" x --pq-sdk ../k.priv ../t1.zupt > /dev/null 2>&1)
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mkdir -p t2e && (cd t2e && "$ZUPT_BIN" x --pq-sdk ../k.priv ../t2.zupt > /dev/null 2>&1)
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A=$([ ! -f t1e/input.txt ] && echo 1 || echo 0)
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B=$([ ! -f t2e/input.txt ] && echo 1 || echo 0)
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DCHK "Tamper detected at any byte position" "$A" "$B"
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echo " [B. Format security]"
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# B1. Zero-byte file (path A) + 1-byte file (path B): both must roundtrip
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> empty.txt
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echo -n "x" > one.txt
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"$ZUPT_BIN" c --pq-sdk k.priv.pub e.zupt empty.txt > /dev/null 2>&1
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"$ZUPT_BIN" c --pq-sdk k.priv.pub o.zupt one.txt > /dev/null 2>&1
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mkdir -p eex && (cd eex && "$ZUPT_BIN" x --pq-sdk ../k.priv ../e.zupt > /dev/null 2>&1)
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mkdir -p oex && (cd oex && "$ZUPT_BIN" x --pq-sdk ../k.priv ../o.zupt > /dev/null 2>&1)
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A=$([ -f eex/empty.txt ] && [ ! -s eex/empty.txt ] && echo 1 || echo 0)
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B=$([ -f oex/one.txt ] && [ "$(cat oex/one.txt)" = "x" ] && echo 1 || echo 0)
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DCHK "Edge-size files (0/1 byte) roundtrip" "$A" "$B"
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# B2. 1MB random file (path A) + structured-data 1MB (path B)
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dd if=/dev/urandom of=big_a.bin bs=1M count=1 2>/dev/null
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python3 -c "open('big_b.bin','wb').write(b'A'*1024*1024)"
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"$ZUPT_BIN" c --pq-sdk k.priv.pub ba.zupt big_a.bin > /dev/null 2>&1
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"$ZUPT_BIN" c --pq-sdk k.priv.pub bb.zupt big_b.bin > /dev/null 2>&1
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mkdir -p ba_e && (cd ba_e && "$ZUPT_BIN" x --pq-sdk ../k.priv ../ba.zupt > /dev/null 2>&1)
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mkdir -p bb_e && (cd bb_e && "$ZUPT_BIN" x --pq-sdk ../k.priv ../bb.zupt > /dev/null 2>&1)
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A=$(diff -q big_a.bin ba_e/big_a.bin > /dev/null 2>&1 && echo 1 || echo 0)
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B=$(diff -q big_b.bin bb_e/big_b.bin > /dev/null 2>&1 && echo 1 || echo 0)
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DCHK "1MB roundtrip (random + structured)" "$A" "$B"
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# B3. Truncated archive rejected (path A: cut last 50 bytes) (path B: cut at midpoint)
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cp a.zupt tr1.zupt; cp a.zupt tr2.zupt
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truncate -s -50 tr1.zupt
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truncate -s 100 tr2.zupt
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mkdir -p tr1e tr2e
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(cd tr1e && "$ZUPT_BIN" x --pq-sdk ../k.priv ../tr1.zupt > /dev/null 2>&1)
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(cd tr2e && "$ZUPT_BIN" x --pq-sdk ../k.priv ../tr2.zupt > /dev/null 2>&1)
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A=$([ ! -f tr1e/input.txt ] && echo 1 || echo 0)
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B=$([ ! -f tr2e/input.txt ] && echo 1 || echo 0)
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DCHK "Truncated archive rejected" "$A" "$B"
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echo " [C. Format compatibility]"
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# C1. Mode confusion: SDK archive cannot be read with --pq (legacy)
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mkdir -p mc1 && (cd mc1 && "$ZUPT_BIN" x --pq ../legacy.key ../a.zupt > /dev/null 2>&1)
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A=$([ ! -f mc1/input.txt ] && echo 1 || echo 0)
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# Also: legacy archive cannot be read with --pq-sdk
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"$ZUPT_BIN" c --pq legacy.key leg.zupt input.txt > /dev/null 2>&1
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mkdir -p mc2 && (cd mc2 && "$ZUPT_BIN" x --pq-sdk ../k.priv ../leg.zupt > /dev/null 2>&1)
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B=$([ ! -f mc2/input.txt ] && echo 1 || echo 0)
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DCHK "Mode confusion prevented (SDK↔legacy)" "$A" "$B"
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# C2. Legacy archive readable with legacy key (compat baseline)
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mkdir -p lc && (cd lc && "$ZUPT_BIN" x --pq ../legacy.key ../leg.zupt > /dev/null 2>&1)
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A=$(diff -q lc/input.txt input.txt > /dev/null 2>&1 && echo 1 || echo 0)
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# B: SDK archive readable with SDK key (compat baseline)
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mkdir -p sc && (cd sc && "$ZUPT_BIN" x --pq-sdk ../k.priv ../a.zupt > /dev/null 2>&1)
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B=$(diff -q sc/input.txt input.txt > /dev/null 2>&1 && echo 1 || echo 0)
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DCHK "Both SDK and legacy paths roundtrip independently" "$A" "$B"
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echo " [D. Robustness]"
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# D1. Non-existent input handled
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"$ZUPT_BIN" c --pq-sdk k.priv.pub nx.zupt /nonexistent_file_12345 > /dev/null 2>&1
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A=$([ ! -f nx.zupt ] && echo 1 || echo 0)
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"$ZUPT_BIN" c --pq-sdk k.priv.pub nx2.zupt /dev/nonexistent > /dev/null 2>&1
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B=$([ ! -f nx2.zupt ] && echo 1 || echo 0)
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DCHK "Missing input file rejected cleanly" "$A" "$B"
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# D2. Non-existent key handled
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mkdir -p nk1 && (cd nk1 && "$ZUPT_BIN" x --pq-sdk /nonexistent.key ../a.zupt > /dev/null 2>&1)
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A=$([ ! -f nk1/input.txt ] && echo 1 || echo 0)
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"$ZUPT_BIN" c --pq-sdk /nonexistent.pub bbnk.zupt input.txt > /dev/null 2>&1
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B=$([ ! -s bbnk.zupt ] && echo 1 || echo 0)
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DCHK "Missing key file rejected cleanly" "$A" "$B"
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# D3. Multiple files in one archive
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mkdir -p multi
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echo "a" > multi/a.txt; echo "b" > multi/b.txt; echo "c" > multi/c.txt
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"$ZUPT_BIN" c --pq-sdk k.priv.pub mm.zupt multi/a.txt multi/b.txt multi/c.txt > /dev/null 2>&1
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mkdir -p mmex && (cd mmex && "$ZUPT_BIN" x --pq-sdk ../k.priv ../mm.zupt > /dev/null 2>&1)
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A=$(diff -q mmex/multi/a.txt multi/a.txt > /dev/null 2>&1 && echo 1 || echo 0)
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B=$([ -f mmex/multi/c.txt ] && [ "$(cat mmex/multi/c.txt 2>/dev/null)" = "c" ] && echo 1 || echo 0)
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DCHK "Multiple files in archive roundtrip" "$A" "$B"
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echo
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echo " ───────────────────────────────────────"
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echo " Audit results: $PASS passed, $FAIL failed"
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echo " ───────────────────────────────────────"
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[ $FAIL -eq 0 ]
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