bsv-wasm-bundler

BSV.WASM

A Rust/WASM Library to interact with Bitcoin SV

Installation

NodeJS:
npm i bsv-wasm --save

Web:
npm i bsv-wasm-web --save

Webpack:
npm i bsv-wasm-bundler --save

Rust:
https://crates.io/crates/bsv-wasm

Usage

Note: Rust and JS/TS method names and structs are the same

• Eg. Derive private key from XPriv and log out P2PKH String ExtendedPrivateKey.fromWIF('LMyWif...').toPrivateKey().toPublicKey().toAddress().toString()

Caveats

• IMPORTANT: Call .free() on every WASM object after you are done with it to prevent memory leaks and slowdown. This is required because WASM->JS interaction doesnt have garbage collection implemented for it. When the Javascript object goes out of scope, it will free the pointer to the WASM object but never free the memory allocated by the WASM runtime.
• Bitcoin Signed Message (BSM) struct does not implement any base64 string parsing, please pass the raw Signature type or call fromCompactBytes on the Signature struct and pass it to the BSM.verify function.

Features

• Hash (SHA256, SHA256d, SHA1, RIPEMD160, Hash160, SHA512)
• KDF (PBKDF2)
• Encryption (AES-CBC, AES-CTR)
• ECDSA (Private Key, Public Key, Signatures)
• Transaction (Building, Serialising, Deserialising)
• Script (Serialising, Deserialising)
• Addresses (P2PKH)
• Sighash Support
• Extended Private Keys and Child Derivation (BIP32, BIP42)

TODO:

• Script Builder
• Isomorphic Package for JS
• Write documentation (Inline on functions and structs)
• Testnet Support

Will not do:

• Mnemonics

Thanks

• Brenton Gunning (rust-sv)
• Moneybutton Team (bsv.js)
• Bitping Team
• learnmeabitcoin.com
• Bitcoin SV Wiki