jamesob

Syncthing Security Audit — Executive Summary

Repository audited: https://github.com/syncthing/syncthing Date: 2026-07-08 Methodology: Full file-by-file review of the source tree by four parallel read-only security auditor agents, each assigned a balanced batch of files (~599 source files total across cmd/, internal/, lib/, gui/, meta/, script/, test/, and root build files). Each agent read every file in its batch and looked for backdoors, data exfiltration, and suspicious security weaknesses in the context of the project as a whole.

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Top-line verdict

jamesob

#!/usr/bin/env bash
set -euo pipefail

die() { echo "error: $*" >&2; exit 1; }

# --- Check prerequisites ---
command -v nvcc >/dev/null 2>&1 || {
  if [[ -x /usr/local/cuda/bin/nvcc ]]; then
    export PATH=/usr/local/cuda/bin:$PATH
  else

jamesob

#!/bin/bash
IMAGE_NAME="claude-code-runner"
CONTAINER_NAME="claude-code-$(basename $(pwd))"

RED='\033[0;31m'
GREEN='\033[0;32m'
YELLOW='\033[1;33m'
NC='\033[0m' # No Color

# Parse arguments

jamesob

#!/bin/bash
IMAGE_NAME="claude-code-runner"
CONTAINER_NAME="claude-code-$(basename $(pwd))"

RED='\033[0;31m'
GREEN='\033[0;32m'
YELLOW='\033[1;33m'
NC='\033[0m' # No Color

# Parse arguments

jamesob

Connected to Bitcoin node. Current block height: 905108
Analyzing last 12960 blocks...
Starting from block: 00000000000000000000e9900f08f6dc109762d09d4d0b31b8ece5ab35a5401e
Processing block 12960/12960...
Processed 12960 blocks

============================================================
Bitcoin Address Type Analysis
============================================================
Total Value Analyzed: 53757862.95514309 BTC

jamesob

#include <iostream>
#include <vector>
#include <random>
#include <chrono>
#include <iomanip>
#include <cassert>

// Include libsecp256k1
#include <secp256k1.h>

jamesob

#include <iostream>
#include <format>
#include <cstring>
#include <vector>
#include <thread>
#include <random>
#include <chrono>
#include <secp256k1.h>

constexpr size_t NUM_KEYS = 6'500'000;

jamesob

Prelude

Soft forks tighten the rule set of what transactions are valid. Additional opcodes allow existing owners of coins to put additional constraints on how those coins are spent.

Many covenant-enabling opcodes are nothing more than "new", more specific sighashes[^sigh]. Other opcodes allow access to information about a spending transaction.

None of this is conceptually objectionable. People should be able to put constraints on their property. But first we must do no harm.

The concrete issues, when gauging additional script functionality, are:

jamesob

# This (very scant) guide allows you to do Android and react-native development on Linux by 
# running the android emulator in a container.

# install yay via AUR
git clone https://aur.archlinux.org/yay.git && cd yay && makpkg -si

# install all android dev packages per https://wiki.archlinux.org/title/Android
yay -Sy android-sdk-cmdline-tools-latest android-sdk-build-tools android-sdk-platform-tools android-platform 

# add to .zshrc

jamesob

$ make clean && ./configure && make clean && make && SECP256K1_BENCH_ITERS=200000 ./bench verify sign

Benchmark                     ,    Min(us)    ,    Avg(us)    ,    Max(us)

ecdsa_verify                  ,    71.5       ,    71.5       ,    71.5
ecdsa_sign                    ,    54.8       ,    54.9       ,    54.9
schnorrsig_sign               ,    41.9       ,    41.9       ,    41.9
schnorrsig_verify             ,    72.6       ,    72.6       ,    72.6