SCC.js can be used as an internal factory system to produce Transactions, On-Chain Scripts, Contracts and Signature creation/verification, all without any full node, RPC or cryptography necessary!
For example, SCP Wallet (an Electron-based Lightwallet) uses SCC.js as it's internal wallet system.
The following docs assume that you've minimally imported the SCC.js library into your Node.js script, e.g:
const SCC = require('scc-js');
// The SCC module exposes two sub-modules, the Wallet and Signer modules
// SCC.wallet
// SCC.signerCreates a cryptographically-random SCC wallet key pair (Private Key and Public Key)
const SCC = require('scc-js');
// Async
async function newWallet() {
return await SCC.wallet.generateWallet(); // { 'pubkey': '...', 'privkey': '...' }
}
// Callback
SCC.generateWallet().then(cWallet => {
// { 'pubkey': '...', 'privkey': '...' }
});Derives the public key from an existing WIF-encoded private key.
- Decodes Base58 private keys by default, but can accept raw key bytes with an optional flag.
- Returns a network-encoded, Base58 address by default, but can return a raw Secp256k1 public key with an optional flag.
const SCC = require('scc-js');
// Derive a native base58 SCC address (String)
// Private Key String
const base58Address = SCC.wallet.pubFromPriv('base58_private_key');
// Derive a raw Secp256k1 public key (Uint8Array)
// Private Key String, fRaw, fPubBytesOnly
const pubKey = SCC.wallet.pubFromPriv('base58_private_key', false, true);
// Derive a native base58 SCC address (String) from raw private key bytes (Uint8Array)
// Private Key String, fRaw
const base58Address = SCC.wallet.pubFromPriv(uint8PrivKeyBytes, true);// TODO!
Creates a cryptographic signature of a given message, for a given private key.
const SCC = require('scc-js');
// Async
async function signMessage(msg, privkey)) {
return await SCC.signer.sign(msg, privkey); // Buffer([signature bytes]);
}
// Callback
SCC.signer.sign('hello world', 'WIF_private_key').then(cSig => {
// Buffer([signature bytes]);
});Verify the integrity and authorship of a message by it's public key and signature.
const SCC = require('scc-js');
// Async
async function verifyMessage(msg, pubkey, cSig)) {
return await SCC.signer.verify(msg, pubkey, cSig); // Boolean(true / false)
}
// Callback
SCC.signer.verify(msg, pubkey, cSig).then(fValid => {
// Boolean(true / false)
});
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