kallewoof

On Debian Jessie PowerPC (Big endian) system (endianness probably unrelated):
```
wallet/walletutil.cpp: In function ‘std::vector<boost::filesystem::path> ListWalletDir()’:
wallet/walletutil.cpp:57:78: error: ‘end’ was not declared in this scope
     for (auto it = fs::recursive_directory_iterator(wallet_dir); it != end(it); ++it) {
                                                                              ^
wallet/walletutil.cpp:57:78: note: suggested alternative:
In file included from /usr/include/c++/4.9/bits/basic_string.h:42:0,
                 from /usr/include/c++/4.9/string:52,
                 from ./fs.h:9,

kallewoof

Initial script:

	OP_IF
		144
		OP_CHECKSEQUENCEVERIFY
		<pubkey_alice>
	OP_ELSE
		OP_SHA256
		preimage_hash
		OP_EQUALVERIFY

kallewoof

internal_pubkey=efe24af16da45a3e3ce3503b7b7172d64b16b28922011f8df970dd5bf6cc6be7
tapscript=a8206c60f404f8167a38fc70eaf8aa17ac351023bef86bcb9d1086a19afe95bd53338820cc9519ba6fb1cb0cca53743dc90c2418440cf637f8b891ce2f0e2dc5c5b3cf01ac

➜  btcdeb git:(taproot) ✗ ./tap $internal_pubkey 1 $tapscript
tap 0.2.19 -- type `./tap -h` for help
WARNING: This is experimental software. Do not use this with real bitcoin, or you will most likely lose them all. You have been w a r n e d.
LOG: sign segwit taproot
Internal pubkey: efe24af16da45a3e3ce3503b7b7172d64b16b28922011f8df970dd5bf6cc6be7
1 scripts:
- #0: a8206c60f404f8167a38fc70eaf8aa17ac351023bef86bcb9d1086a19afe95bd53338820cc9519ba6fb1cb0cca53743dc90c2418440cf637f8b891ce2f0e2dc5c5b3cf01ac

kallewoof

Signet

This is a description of how to get started with Signet. This document assumes you are capable of using git, and that you are able to compile Bitcoin. (If you have not yet done so, you should begin by doing that now.)

Fetch and compile signet

$ git clone https://github.com/kallewoof/bitcoin.git signet
$ cd signet
$ git checkout 2003-signet-consensus

kallewoof

#!/bin/bash
if [ $# -lt 1 ]; then
    echo "syntax: $0 <commit count> [<make args>]"
    echo "will attempt to run 'make' on each commit starting with the commit <commit count> commits ago all the way up to the current HEAD"
    echo "e.g. compile-commits 10 -j10"
    exit 1
fi

if [ ! -d ".git" ]; then
    echo ".git not found or not a dir"

kallewoof

Schnorr signature test vectors

Test vector overview

1. Hash function H(m) = SHA256(m)

Basics

• For a private key x, the public key is xG.
• A signature on the message m with private key x is (R, s) where R=kG, s=k+H(R,X,m)x.
• Verifying a signature is testing whether sG = R+H(R,X,m)X.

kallewoof

Setting up Clang Static Analyzer on macOS

• Go to https://clang-analyzer.llvm.org/
• Grab the checker-279.tar.bz2 file from the link under Mac OS X
• Untar this file somewhere, e.g. ~/workspace/checker-279

Using it

• Go to e.g. ~/workspace/myproject
• Compile it from scratch, including autogen parts, with make clean, but prefix each call with the scan-build in the path above. E.g.

kallewoof

export type Dict<T> = { [type: string]: T };

const Do = async <Retval>(cmd: string, ...args: (string | boolean | number | object | null | undefined)[])
: Promise<Retval> => Promise.reject();

// The above Do command should asynchronously call Bitcoin's RPC interface, e.g. like the bcrpc package.

/////////////////////////////////////////
// RPC: abandontransaction
//