ecdsa-dump-bitcoin

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ecdsa-dump-bitcoin

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# ecdsa-dump-bitcoin

[![Rust 1.44+](https://img.shields.io/badge/rust-1.44+-red.svg)](https://www.sagemath.org/index.html) [![License: GPL v3](https://img.shields.io/badge/license-GPL%20v3-blue.svg)](http://www.gnu.org/licenses/gpl-3.0)

**Note**: This is a fork of [rusty-blockparser](https://github.com/gcarq/rusty-blockparser)

Dump bitcoin signatures and original messages

# Changes from upstream

* Added `sigdump` callback

# Building

All you need is Rust, which can be installed using [rustup](https://rustup.rs/).

```bash
cargo build --release
```

It is important to build with `--release`, for better performance!

# Usage

```
cargo run --release -- sigdump --help
```

```
USAGE:
    rusty-blockparser sigdump <dump-folder> <bitcoin-folder>

FLAGS:
    -h, --help       Prints help information
    -V, --version    Prints version information

ARGS:
    <dump-folder>       Folder to store csv files
    <bitcoin-folder>    Path to the .bitcoin folder

```
# Example

To dump all ecdsa signatures and original messages from the Bitcoin chain, 
do the following.

First install [Bitcoin core](https://github.com/bitcoin/bitcoin) and run it with transaction indexing enabled:

```
bitcoin-qt -txindex=1
```

During the first run, make sure to note where the bitcoin folder is.
By default, it will be in `~/.bitcoin`.
Make sure to disable chain pruning when asked. There may be a checkbox to disable on first run of `bitcoin-qt`.

To dump signatures and messages that were synced so far, 
using the bitcoin folder and to dump them in the dump folder, 
use the `sigdump` callback as in the following example:

```
$ cargo run --release -- sigdump ./dump-folder ~/.bitcoin
[8:41:53 UTC] INFO - main: Starting rusty-blockparser v0.8.1 ...
[8:41:53 UTC] INFO - index: Reading index from /home/nils/.bitcoin/blocks/index ...
[8:41:53 UTC] INFO - index: Got longest chain with 1 blocks ...
[8:41:53 UTC] INFO - blkfile: Reading files from /home/nils/.bitcoin/blocks ...
[8:41:53 UTC] INFO - parser: Parsing Bitcoin blockchain (range=0..) ...
[8:41:53 UTC] INFO - callback: Using `sigdump` with dump folder: ./dump-folder ...
[8:41:53 UTC] INFO - parser: Done. Processed 1 blocks in 0.00 minutes. (avg:     1 blocks/sec)
[8:41:53 UTC] INFO - callback: Done.
Dumped all 1 blocks:
        -> transactions:         1
        -> inputs:               1
        -> outputs:              1
[8:41:53 UTC] INFO - main: Fin.

```

A CSV file will be created in the dump folder.
This output file will contain, on each line:

```
r;s;pubkey;txid;message_hash;block_time
```

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