[ANN] cbitcoin 2.0 - A Bitcoin Library in C

[BitCoinDream]

Can we push it into student's syllabus learning C ? If yes, how ? Any idea ?

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[1713878977]

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[1713878977]

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[MatthewLM]

Can we push it into student's syllabus learning C ? If yes, how ? Any idea ?

There was one university project using cbitcoin. I'm not sure how much they would be happy for me to disclose about that though.

I changed cbitcoin significantly in a new commit. I removed a lot of incomplete code so that what is left is done to a higher degree of completeness. It has code for HD wallets, transaction construction, script execution/construction, network messages, bitcoin addresses, WIF addresses, general base58 encoding/decoding, basic network communication, proof of work validation and more.

[azw409]

Hi Matt,

Thanks for your work on this, I'm very impressed by the simplicity of it - Bitcoin code that is easy to follow, what a novelty !

I want to do some experimentation with a slightly different blockchain implementation i.e. yet another worthless altcoin and thought that cbitcoin might be a good starting point. Is there a rough example on how to use cbitcoin to create a basic full validating node as I've looked through all the classes and can't find a 'main' function or a basic entry point anywhere ? None of the examples seem to cover this basic case, unless I've missed it.

Thanks

Andrew

[MatthewLM]

Hi Andrew,

I have worked on full validation on cbitcoin, though I decided to scrap it in favour of more primitive bitcoin functions only, because of the time and work involved in getting it fully functional and tested. cbitcoin however would give a set of tools to help with creating a fully validating node, and the CBNetworkCommunicator code goes some way to implementing a node (handshakes, pings, peer discovery etc.). For blockchain validation you could look at the old CBValidator code, though I removed it. The library still has things such as address encoding, BIP0032 HD Wallets, message structures inc. serialisation, basic validation functions (merkle tree functions, proof of work stuff etc.), script creation/execution, and transaction creation/signing.

However to create an alt-coin from it would be an unnecessary difficulty in my opinion, though it could make an interesting project for sure, and cbitcoin may be useful in projects, though I can't guarantee that it's 100% correct and bug free. I am personally using the HD wallet code in another project with some modifications. I also use the example programs quite a lot: https://github.com/MatthewLM/cbitcoin/tree/master/examples

Regards,

Matthew