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2
api/org/bitcoins/docs/BuildInfo$.html
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docs/next/core/addresses.html
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@ -80,7 +80,7 @@ reason to keep using legacy transaction formats.</p>
<span class="hljs-keyword">val</span> privkey = <span class="hljs-type">ECPrivateKey</span>()
<span class="hljs-comment">// privkey: ECPrivateKey = Masked(ECPrivateKey)</span>
<span class="hljs-keyword">val</span> pubkey = privkey.publicKey
<span class="hljs-comment">// pubkey: org.bitcoins.crypto.ECPublicKey = ECPublicKey(038959d4bb0ed3ed617ff6e0dda8a4331874d3d556a954cb08b5cdf908a36f7c00)</span>
<span class="hljs-comment">// pubkey: org.bitcoins.crypto.ECPublicKey = ECPublicKey(02604920fc43951b7f4748903a5a772c997c9363dbfc37d9c3f4398a3d6144cd35)</span>
<span class="hljs-keyword">val</span> segwitAddress = {
<span class="hljs-comment">// see https://bitcoin.org/en/glossary/pubkey-script</span>
@ -89,10 +89,10 @@ reason to keep using legacy transaction formats.</p>
<span class="hljs-keyword">val</span> scriptPubKey = <span class="hljs-type">P2WPKHWitnessSPKV0</span>(pubkey)
<span class="hljs-type">Bech32Address</span>(scriptPubKey, <span class="hljs-type">TestNet3</span>)
}
<span class="hljs-comment">// segwitAddress: Bech32Address = tb1q36sn5rh2895ny7vwzzy62g0vgsnk2fz9efd4r4</span>
<span class="hljs-comment">// segwitAddress: Bech32Address = tb1q4c0w52tdzrxa5fnzv5umkla7vnw26h9tf27gdj</span>
println(segwitAddress.toString)
<span class="hljs-comment">// tb1q36sn5rh2895ny7vwzzy62g0vgsnk2fz9efd4r4</span>
<span class="hljs-comment">// tb1q4c0w52tdzrxa5fnzv5umkla7vnw26h9tf27gdj</span>
</code></pre>
<h2><a class="anchor" aria-hidden="true" id="generating-legacy-base58-addresses"></a><a href="#generating-legacy-base58-addresses" aria-hidden="true" class="hash-link"><svg class="hash-link-icon" aria-hidden="true" height="16" version="1.1" viewBox="0 0 16 16" width="16"><path fill-rule="evenodd" d="M4 9h1v1H4c-1.5 0-3-1.69-3-3.5S2.55 3 4 3h4c1.45 0 3 1.69 3 3.5 0 1.41-.91 2.72-2 3.25V8.59c.58-.45 1-1.27 1-2.09C10 5.22 8.98 4 8 4H4c-.98 0-2 1.22-2 2.5S3 9 4 9zm9-3h-1v1h1c1 0 2 1.22 2 2.5S13.98 12 13 12H9c-.98 0-2-1.22-2-2.5 0-.83.42-1.64 1-2.09V6.25c-1.09.53-2 1.84-2 3.25C6 11.31 7.55 13 9 13h4c1.45 0 3-1.69 3-3.5S14.5 6 13 6z"></path></svg></a>Generating legacy (base58) addresses</h2>
<p>If you need to generate legacy addresses for backwards
@ -101,10 +101,10 @@ Take a look:</p>
<pre><code class="hljs css language-scala"><span class="hljs-comment">// we're reusing the same private/public key pair</span>
<span class="hljs-comment">// from before. don't do this in an actual application!</span>
<span class="hljs-keyword">val</span> legacyAddress = <span class="hljs-type">P2PKHAddress</span>(pubkey, <span class="hljs-type">TestNet3</span>)
<span class="hljs-comment">// legacyAddress: P2PKHAddress = mtX7PXZT3SC8eM9arcDuMxPPHbmFxE3Bup</span>
<span class="hljs-comment">// legacyAddress: P2PKHAddress = mwPcuRVjn7AGLPcYPfuWq2eT1g7sAnoC5S</span>
println(legacyAddress.toString)
<span class="hljs-comment">// mtX7PXZT3SC8eM9arcDuMxPPHbmFxE3Bup</span>
<span class="hljs-comment">// mwPcuRVjn7AGLPcYPfuWq2eT1g7sAnoC5S</span>
</code></pre>
</span></div></article></div><div class="docs-prevnext"><a class="docs-prev button" href="/docs/next/core/core-intro"><span class="arrow-prev">← </span><span>Core Module</span></a><a class="docs-next button" href="/docs/next/core/hd-keys"><span>HD Key Generation</span><span class="arrow-next"> →</span></a></div></div></div><nav class="onPageNav"><ul class="toc-headings"><li><a href="#generating-segwit-bech32-addresses">Generating SegWit (bech32) addresses</a></li><li><a href="#generating-legacy-base58-addresses">Generating legacy (base58) addresses</a></li></ul></nav></div><footer class="nav-footer" id="footer"><section class="sitemap"><a href="/" class="nav-home"><img src="/img/favicon.ico" alt="bitcoin-s" width="66" height="58"/></a><div><h5>Docs</h5><a href="/docs/en/getting-started">Getting Started</a><a href="/docs/en/core/core-intro">Guides</a><a href="/api/org/bitcoins">API Reference</a></div><div><h5>Community</h5><a href="/en/users.html">User Showcase</a><a href="https://join.slack.com/t/suredbits/shared_invite/zt-eavycu0x-WQL7XOakzQo8tAy7jHHZUw" target="_blank" rel="noreferrer noopener">Slack</a><a href="https://gitter.im/bitcoin-s-core/">Gitter chat</a></div><div><h5>More</h5><a href="https://github.com/bitcoin-s/bitcoin-s">GitHub</a><a class="github-button" href="https://github.com/bitcoin-s/bitcoin-s" data-icon="octicon-star" data-count-href="/bitcoin-s/bitcoin-s-core/stargazers" data-show-count="true" data-count-aria-label="# stargazers on GitHub" aria-label="Star this project on GitHub">Star</a></div></section><section class="copyright">Copyright © 2021 Suredbits &amp; the bitcoin-s developers</section></footer></div><script type="text/javascript" src="https://cdn.jsdelivr.net/docsearch.js/1/docsearch.min.js"></script><script>
document.addEventListener('keyup', function(e) {

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docs/next/core/addresses/index.html
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@ -80,7 +80,7 @@ reason to keep using legacy transaction formats.</p>
<span class="hljs-keyword">val</span> privkey = <span class="hljs-type">ECPrivateKey</span>()
<span class="hljs-comment">// privkey: ECPrivateKey = Masked(ECPrivateKey)</span>
<span class="hljs-keyword">val</span> pubkey = privkey.publicKey
<span class="hljs-comment">// pubkey: org.bitcoins.crypto.ECPublicKey = ECPublicKey(038959d4bb0ed3ed617ff6e0dda8a4331874d3d556a954cb08b5cdf908a36f7c00)</span>
<span class="hljs-comment">// pubkey: org.bitcoins.crypto.ECPublicKey = ECPublicKey(02604920fc43951b7f4748903a5a772c997c9363dbfc37d9c3f4398a3d6144cd35)</span>
<span class="hljs-keyword">val</span> segwitAddress = {
<span class="hljs-comment">// see https://bitcoin.org/en/glossary/pubkey-script</span>
@ -89,10 +89,10 @@ reason to keep using legacy transaction formats.</p>
<span class="hljs-keyword">val</span> scriptPubKey = <span class="hljs-type">P2WPKHWitnessSPKV0</span>(pubkey)
<span class="hljs-type">Bech32Address</span>(scriptPubKey, <span class="hljs-type">TestNet3</span>)
}
<span class="hljs-comment">// segwitAddress: Bech32Address = tb1q36sn5rh2895ny7vwzzy62g0vgsnk2fz9efd4r4</span>
<span class="hljs-comment">// segwitAddress: Bech32Address = tb1q4c0w52tdzrxa5fnzv5umkla7vnw26h9tf27gdj</span>
println(segwitAddress.toString)
<span class="hljs-comment">// tb1q36sn5rh2895ny7vwzzy62g0vgsnk2fz9efd4r4</span>
<span class="hljs-comment">// tb1q4c0w52tdzrxa5fnzv5umkla7vnw26h9tf27gdj</span>
</code></pre>
<h2><a class="anchor" aria-hidden="true" id="generating-legacy-base58-addresses"></a><a href="#generating-legacy-base58-addresses" aria-hidden="true" class="hash-link"><svg class="hash-link-icon" aria-hidden="true" height="16" version="1.1" viewBox="0 0 16 16" width="16"><path fill-rule="evenodd" d="M4 9h1v1H4c-1.5 0-3-1.69-3-3.5S2.55 3 4 3h4c1.45 0 3 1.69 3 3.5 0 1.41-.91 2.72-2 3.25V8.59c.58-.45 1-1.27 1-2.09C10 5.22 8.98 4 8 4H4c-.98 0-2 1.22-2 2.5S3 9 4 9zm9-3h-1v1h1c1 0 2 1.22 2 2.5S13.98 12 13 12H9c-.98 0-2-1.22-2-2.5 0-.83.42-1.64 1-2.09V6.25c-1.09.53-2 1.84-2 3.25C6 11.31 7.55 13 9 13h4c1.45 0 3-1.69 3-3.5S14.5 6 13 6z"></path></svg></a>Generating legacy (base58) addresses</h2>
<p>If you need to generate legacy addresses for backwards
@ -101,10 +101,10 @@ Take a look:</p>
<pre><code class="hljs css language-scala"><span class="hljs-comment">// we're reusing the same private/public key pair</span>
<span class="hljs-comment">// from before. don't do this in an actual application!</span>
<span class="hljs-keyword">val</span> legacyAddress = <span class="hljs-type">P2PKHAddress</span>(pubkey, <span class="hljs-type">TestNet3</span>)
<span class="hljs-comment">// legacyAddress: P2PKHAddress = mtX7PXZT3SC8eM9arcDuMxPPHbmFxE3Bup</span>
<span class="hljs-comment">// legacyAddress: P2PKHAddress = mwPcuRVjn7AGLPcYPfuWq2eT1g7sAnoC5S</span>
println(legacyAddress.toString)
<span class="hljs-comment">// mtX7PXZT3SC8eM9arcDuMxPPHbmFxE3Bup</span>
<span class="hljs-comment">// mwPcuRVjn7AGLPcYPfuWq2eT1g7sAnoC5S</span>
</code></pre>
</span></div></article></div><div class="docs-prevnext"><a class="docs-prev button" href="/docs/next/core/core-intro"><span class="arrow-prev">← </span><span>Core Module</span></a><a class="docs-next button" href="/docs/next/core/hd-keys"><span>HD Key Generation</span><span class="arrow-next"> →</span></a></div></div></div><nav class="onPageNav"><ul class="toc-headings"><li><a href="#generating-segwit-bech32-addresses">Generating SegWit (bech32) addresses</a></li><li><a href="#generating-legacy-base58-addresses">Generating legacy (base58) addresses</a></li></ul></nav></div><footer class="nav-footer" id="footer"><section class="sitemap"><a href="/" class="nav-home"><img src="/img/favicon.ico" alt="bitcoin-s" width="66" height="58"/></a><div><h5>Docs</h5><a href="/docs/en/getting-started">Getting Started</a><a href="/docs/en/core/core-intro">Guides</a><a href="/api/org/bitcoins">API Reference</a></div><div><h5>Community</h5><a href="/en/users.html">User Showcase</a><a href="https://join.slack.com/t/suredbits/shared_invite/zt-eavycu0x-WQL7XOakzQo8tAy7jHHZUw" target="_blank" rel="noreferrer noopener">Slack</a><a href="https://gitter.im/bitcoin-s-core/">Gitter chat</a></div><div><h5>More</h5><a href="https://github.com/bitcoin-s/bitcoin-s">GitHub</a><a class="github-button" href="https://github.com/bitcoin-s/bitcoin-s" data-icon="octicon-star" data-count-href="/bitcoin-s/bitcoin-s-core/stargazers" data-show-count="true" data-count-aria-label="# stargazers on GitHub" aria-label="Star this project on GitHub">Star</a></div></section><section class="copyright">Copyright © 2021 Suredbits &amp; the bitcoin-s developers</section></footer></div><script type="text/javascript" src="https://cdn.jsdelivr.net/docsearch.js/1/docsearch.min.js"></script><script>
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@ -86,13 +86,13 @@ use that to generate further private and public keys:</p>
<span class="hljs-comment">// how long our phrase ends up being</span>
<span class="hljs-comment">// 256 bits of entropy results in 24 words</span>
<span class="hljs-keyword">val</span> entropy: <span class="hljs-type">BitVector</span> = <span class="hljs-type">MnemonicCode</span>.getEntropy256Bits
<span class="hljs-comment">// entropy: BitVector = BitVector(256 bits, 0x182ff48b98bccc7a1ed04ade668b3a176c7c4a83c4d7dbbad3c336c224b083bc)</span>
<span class="hljs-comment">// entropy: BitVector = BitVector(256 bits, 0xde73f048b863a682eca752f2927e2e90a97c5c61413b2f2dbefe93a7d80939a2)</span>
<span class="hljs-keyword">val</span> mnemonicCode = <span class="hljs-type">MnemonicCode</span>.fromEntropy(entropy)
<span class="hljs-comment">// mnemonicCode: MnemonicCode = Masked(MnemonicCodeImpl)</span>
mnemonicCode.words <span class="hljs-comment">// the phrase the user should write down</span>
<span class="hljs-comment">// res0: Vector[String] = Vector(blouse, leisure, carry, cousin, smoke, dial, kitten, announce, taxi, crowd, soldier, conduct, sick, census, audit, online, sweet, story, valid, horn, car, flame, auction, never) // the phrase the user should write down</span>
<span class="hljs-comment">// res0: Vector[String] = Vector(taxi, panel, banana, ignore, denial, door, raw, tumble, verb, negative, merry, candy, oak, comfort, lunar, cherry, connect, hospital, sausage, chef, laugh, afraid, track, either) // the phrase the user should write down</span>
<span class="hljs-comment">// the password argument is an optional, extra security</span>
<span class="hljs-comment">// measure. all MnemonicCode instances will give you a</span>
@ -108,7 +108,7 @@ mnemonicCode.words <span class="hljs-comment">// the phrase the user should writ
bip39Seed)
<span class="hljs-comment">// xpriv: ExtPrivateKey = Masked(ExtPrivateKeyImpl)</span>
<span class="hljs-keyword">val</span> xpub = xpriv.extPublicKey
<span class="hljs-comment">// xpub: ExtPublicKey = zpub6jftahH18ngZxziGK7AxFBDn78Sej5vL39mtDhK3kkFTPB7TR9MeQpcet7xxpDmzAmhRqMXsBcox3ki8GCEYKpreEjAhKE9duQFz7ZeUq3P</span>
<span class="hljs-comment">// xpub: ExtPublicKey = zpub6jftahH18ngZy1XtmJsCzwY8rV3JxWt7oq4ZQE6yUaPJwhc58fdrxEtdRksfPtghHBrQmSTHSFiezpQS7BpvYYLyfgBXyY662AjhYxRM1pQ</span>
<span class="hljs-comment">// you can now use the generated xpriv to derive further</span>
<span class="hljs-comment">// private or public keys</span>
@ -154,7 +154,7 @@ spend or steal any of your money.</p>
<span class="hljs-comment">// can generate addresses with it!</span>
accountXpriv.extPublicKey
}
<span class="hljs-comment">// accountXpub: ExtPublicKey = zpub6rpRayEcWBSCQZ7nvJDNeGCJu5awMbnHTQAH1RigYZW3zfnAne22sermwmK2dq94Jo3c1agE4QfCFQy2w1etAsVzqSkQf65QRF1wXJ3CL81</span>
<span class="hljs-comment">// accountXpub: ExtPublicKey = zpub6qNH7e3t4jdevzrP5xiXVJtWE8EKUeUUiXDZjgRau9eRoY32wFQYo9nzsXfAtbkQVq6BL3Qf6HmS4CjcSrL8PsGZrLmQzmCroaPxThLvQ8v</span>
<span class="hljs-comment">// address no. 0 ---------------┐</span>
<span class="hljs-comment">// external address ----------┐ |</span>
@ -177,12 +177,12 @@ spend or steal any of your money.</p>
<span class="hljs-keyword">val</span> scriptPubKey = <span class="hljs-type">P2WPKHWitnessSPKV0</span>(pubkey)
<span class="hljs-type">Bech32Address</span>(scriptPubKey, <span class="hljs-type">TestNet3</span>)
}
<span class="hljs-comment">// firstAccountAddress: Bech32Address = tb1qpfnwpdhdsz45wmdttq93ezcmcygxcc0a00dft5</span>
<span class="hljs-comment">// firstAccountAddress: Bech32Address = tb1q490p6ncklsepapmmm7uvt3drvp0ffslypdzzse</span>
<span class="hljs-comment">// tada! We just generated an address you can send money to,</span>
<span class="hljs-comment">// without having access to the private key!</span>
firstAccountAddress.value
<span class="hljs-comment">// res2: String = tb1qpfnwpdhdsz45wmdttq93ezcmcygxcc0a00dft5</span>
<span class="hljs-comment">// res2: String = tb1q490p6ncklsepapmmm7uvt3drvp0ffslypdzzse</span>
<span class="hljs-comment">// you can now continue deriving addresses from the same public</span>
<span class="hljs-comment">// key, by imitating what we did above. To get the next</span>

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@ -86,13 +86,13 @@ use that to generate further private and public keys:</p>
<span class="hljs-comment">// how long our phrase ends up being</span>
<span class="hljs-comment">// 256 bits of entropy results in 24 words</span>
<span class="hljs-keyword">val</span> entropy: <span class="hljs-type">BitVector</span> = <span class="hljs-type">MnemonicCode</span>.getEntropy256Bits
<span class="hljs-comment">// entropy: BitVector = BitVector(256 bits, 0x182ff48b98bccc7a1ed04ade668b3a176c7c4a83c4d7dbbad3c336c224b083bc)</span>
<span class="hljs-comment">// entropy: BitVector = BitVector(256 bits, 0xde73f048b863a682eca752f2927e2e90a97c5c61413b2f2dbefe93a7d80939a2)</span>
<span class="hljs-keyword">val</span> mnemonicCode = <span class="hljs-type">MnemonicCode</span>.fromEntropy(entropy)
<span class="hljs-comment">// mnemonicCode: MnemonicCode = Masked(MnemonicCodeImpl)</span>
mnemonicCode.words <span class="hljs-comment">// the phrase the user should write down</span>
<span class="hljs-comment">// res0: Vector[String] = Vector(blouse, leisure, carry, cousin, smoke, dial, kitten, announce, taxi, crowd, soldier, conduct, sick, census, audit, online, sweet, story, valid, horn, car, flame, auction, never) // the phrase the user should write down</span>
<span class="hljs-comment">// res0: Vector[String] = Vector(taxi, panel, banana, ignore, denial, door, raw, tumble, verb, negative, merry, candy, oak, comfort, lunar, cherry, connect, hospital, sausage, chef, laugh, afraid, track, either) // the phrase the user should write down</span>
<span class="hljs-comment">// the password argument is an optional, extra security</span>
<span class="hljs-comment">// measure. all MnemonicCode instances will give you a</span>
@ -108,7 +108,7 @@ mnemonicCode.words <span class="hljs-comment">// the phrase the user should writ
bip39Seed)
<span class="hljs-comment">// xpriv: ExtPrivateKey = Masked(ExtPrivateKeyImpl)</span>
<span class="hljs-keyword">val</span> xpub = xpriv.extPublicKey
<span class="hljs-comment">// xpub: ExtPublicKey = zpub6jftahH18ngZxziGK7AxFBDn78Sej5vL39mtDhK3kkFTPB7TR9MeQpcet7xxpDmzAmhRqMXsBcox3ki8GCEYKpreEjAhKE9duQFz7ZeUq3P</span>
<span class="hljs-comment">// xpub: ExtPublicKey = zpub6jftahH18ngZy1XtmJsCzwY8rV3JxWt7oq4ZQE6yUaPJwhc58fdrxEtdRksfPtghHBrQmSTHSFiezpQS7BpvYYLyfgBXyY662AjhYxRM1pQ</span>
<span class="hljs-comment">// you can now use the generated xpriv to derive further</span>
<span class="hljs-comment">// private or public keys</span>
@ -154,7 +154,7 @@ spend or steal any of your money.</p>
<span class="hljs-comment">// can generate addresses with it!</span>
accountXpriv.extPublicKey
}
<span class="hljs-comment">// accountXpub: ExtPublicKey = zpub6rpRayEcWBSCQZ7nvJDNeGCJu5awMbnHTQAH1RigYZW3zfnAne22sermwmK2dq94Jo3c1agE4QfCFQy2w1etAsVzqSkQf65QRF1wXJ3CL81</span>
<span class="hljs-comment">// accountXpub: ExtPublicKey = zpub6qNH7e3t4jdevzrP5xiXVJtWE8EKUeUUiXDZjgRau9eRoY32wFQYo9nzsXfAtbkQVq6BL3Qf6HmS4CjcSrL8PsGZrLmQzmCroaPxThLvQ8v</span>
<span class="hljs-comment">// address no. 0 ---------------┐</span>
<span class="hljs-comment">// external address ----------┐ |</span>
@ -177,12 +177,12 @@ spend or steal any of your money.</p>
<span class="hljs-keyword">val</span> scriptPubKey = <span class="hljs-type">P2WPKHWitnessSPKV0</span>(pubkey)
<span class="hljs-type">Bech32Address</span>(scriptPubKey, <span class="hljs-type">TestNet3</span>)
}
<span class="hljs-comment">// firstAccountAddress: Bech32Address = tb1qpfnwpdhdsz45wmdttq93ezcmcygxcc0a00dft5</span>
<span class="hljs-comment">// firstAccountAddress: Bech32Address = tb1q490p6ncklsepapmmm7uvt3drvp0ffslypdzzse</span>
<span class="hljs-comment">// tada! We just generated an address you can send money to,</span>
<span class="hljs-comment">// without having access to the private key!</span>
firstAccountAddress.value
<span class="hljs-comment">// res2: String = tb1qpfnwpdhdsz45wmdttq93ezcmcygxcc0a00dft5</span>
<span class="hljs-comment">// res2: String = tb1q490p6ncklsepapmmm7uvt3drvp0ffslypdzzse</span>
<span class="hljs-comment">// you can now continue deriving addresses from the same public</span>
<span class="hljs-comment">// key, by imitating what we did above. To get the next</span>

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@ -64,7 +64,7 @@
});
</script></nav></div><div class="container mainContainer docsContainer"><div class="wrapper"><div class="post"><header class="postHeader"><a class="edit-page-link button" href="https://github.com/bitcoin-s/bitcoin-s/blob/master/docs/core/txbuilder.md" target="_blank" rel="noreferrer noopener">Edit</a><h1 id="__docusaurus" class="postHeaderTitle">TxBuilder Example</h1></header><article><div><span><p>Bitcoin-S features a transaction building API that allows you to construct and sign Bitcoin transactions. Here's an example of how to use it</p>
<pre><code class="hljs css language-scala"><span class="hljs-keyword">implicit</span> <span class="hljs-keyword">val</span> ec: <span class="hljs-type">ExecutionContext</span> = <span class="hljs-type">ExecutionContext</span>.<span class="hljs-type">Implicits</span>.global
<span class="hljs-comment">// ec: ExecutionContext = scala.concurrent.impl.ExecutionContextImpl$$anon$3@7ebf7786[Running, parallelism = 2, size = 0, active = 0, running = 0, steals = 0, tasks = 0, submissions = 0]</span>
<span class="hljs-comment">// ec: ExecutionContext = scala.concurrent.impl.ExecutionContextImpl$$anon$3@3c5e8578[Running, parallelism = 2, size = 0, active = 0, running = 0, steals = 0, tasks = 0, submissions = 0]</span>
<span class="hljs-comment">// Initialize a transaction builder</span>
<span class="hljs-keyword">val</span> builder = <span class="hljs-type">RawTxBuilder</span>()
@ -74,19 +74,19 @@
<span class="hljs-keyword">val</span> privKey = <span class="hljs-type">ECPrivateKey</span>.freshPrivateKey
<span class="hljs-comment">// privKey: ECPrivateKey = Masked(ECPrivateKey)</span>
<span class="hljs-keyword">val</span> pubKey = privKey.publicKey
<span class="hljs-comment">// pubKey: ECPublicKey = ECPublicKey(0296504503624a26df85ca790805a108d625a5987d979932120b9f7a51a2d52717)</span>
<span class="hljs-comment">// pubKey: ECPublicKey = ECPublicKey(03be37a2f3ba41fc8bbd9a944acb7a4783930b7fe63acfda3d2d0927a59239e69b)</span>
<span class="hljs-comment">// this is the script that the TxBuilder is going to create a</span>
<span class="hljs-comment">// script signature that validly spends this scriptPubKey</span>
<span class="hljs-keyword">val</span> creditingSpk = <span class="hljs-type">P2PKHScriptPubKey</span>(pubKey = privKey.publicKey)
<span class="hljs-comment">// creditingSpk: P2PKHScriptPubKey = pkh(5db56da774d943dfb75dff905ba53207f630d739)</span>
<span class="hljs-comment">// creditingSpk: P2PKHScriptPubKey = pkh(8c6464320d9facfef6b1fd209b2e15aa65335e84)</span>
<span class="hljs-keyword">val</span> amount = <span class="hljs-number">10000.</span>satoshis
<span class="hljs-comment">// amount: Satoshis = 10000 sats</span>
<span class="hljs-comment">// this is the UTXO we are going to be spending</span>
<span class="hljs-keyword">val</span> utxo =
<span class="hljs-type">TransactionOutput</span>(value = amount, scriptPubKey = creditingSpk)
<span class="hljs-comment">// utxo: TransactionOutput = TransactionOutput(10000 sats,pkh(5db56da774d943dfb75dff905ba53207f630d739))</span>
<span class="hljs-comment">// utxo: TransactionOutput = TransactionOutput(10000 sats,pkh(8c6464320d9facfef6b1fd209b2e15aa65335e84))</span>
<span class="hljs-comment">// the private key that locks the funds for the script we are spending too</span>
<span class="hljs-keyword">val</span> destinationPrivKey = <span class="hljs-type">ECPrivateKey</span>.freshPrivateKey
@ -99,7 +99,7 @@
<span class="hljs-comment">// the script that corresponds to destination private key, this is what is receiving the money</span>
<span class="hljs-keyword">val</span> destinationSPK =
<span class="hljs-type">P2PKHScriptPubKey</span>(pubKey = destinationPrivKey.publicKey)
<span class="hljs-comment">// destinationSPK: P2PKHScriptPubKey = pkh(d54a3cd0a862553d9d1a7545290beb1e2df10e7a)</span>
<span class="hljs-comment">// destinationSPK: P2PKHScriptPubKey = pkh(d830d635191166eb84f75b622e439a856b515d9c)</span>
<span class="hljs-comment">// this is where we are sending money too</span>
<span class="hljs-comment">// we could add more destinations here if we</span>
@ -110,7 +110,7 @@
<span class="hljs-type">Vector</span>(destination0)
}
<span class="hljs-comment">// destinations: Vector[TransactionOutput] = Vector(TransactionOutput(5000 sats,pkh(d54a3cd0a862553d9d1a7545290beb1e2df10e7a)))</span>
<span class="hljs-comment">// destinations: Vector[TransactionOutput] = Vector(TransactionOutput(5000 sats,pkh(d830d635191166eb84f75b622e439a856b515d9c)))</span>
<span class="hljs-comment">// Add the destinations to the tx builder</span>
builder ++= destinations
@ -123,17 +123,17 @@ builder ++= destinations
inputs = <span class="hljs-type">Vector</span>.empty,
outputs = <span class="hljs-type">Vector</span>(utxo),
lockTime = <span class="hljs-type">UInt32</span>.zero)
<span class="hljs-comment">// creditingTx: BaseTransaction = BaseTransaction(Int32Impl(1),Vector(),Vector(TransactionOutput(10000 sats,pkh(5db56da774d943dfb75dff905ba53207f630d739))),UInt32Impl(0))</span>
<span class="hljs-comment">// creditingTx: BaseTransaction = BaseTransaction(Int32Impl(1),Vector(),Vector(TransactionOutput(10000 sats,pkh(8c6464320d9facfef6b1fd209b2e15aa65335e84))),UInt32Impl(0))</span>
<span class="hljs-comment">// this is the information we need from the crediting TX</span>
<span class="hljs-comment">// to properly "link" it in the transaction we are creating</span>
<span class="hljs-keyword">val</span> outPoint = <span class="hljs-type">TransactionOutPoint</span>(creditingTx.txId, <span class="hljs-type">UInt32</span>.zero)
<span class="hljs-comment">// outPoint: TransactionOutPoint = TransactionOutPoint(79bf92a6b00b69d759013e8f472c7cfff03d75c0a39f4b463f4824e96cb802fe:0)</span>
<span class="hljs-comment">// outPoint: TransactionOutPoint = TransactionOutPoint(260e7c7a1f3fafe1971ce010e2149ca855d7180d67ea8b64ad10a46a89f78f0b:0)</span>
<span class="hljs-keyword">val</span> input = <span class="hljs-type">TransactionInput</span>(
outPoint,
<span class="hljs-type">EmptyScriptSignature</span>,
sequenceNumber = <span class="hljs-type">UInt32</span>.zero)
<span class="hljs-comment">// input: TransactionInput = TransactionInputImpl(TransactionOutPoint(79bf92a6b00b69d759013e8f472c7cfff03d75c0a39f4b463f4824e96cb802fe:0),EmptyScriptSignature,UInt32Impl(0))</span>
<span class="hljs-comment">// input: TransactionInput = TransactionInputImpl(TransactionOutPoint(260e7c7a1f3fafe1971ce010e2149ca855d7180d67ea8b64ad10a46a89f78f0b:0),EmptyScriptSignature,UInt32Impl(0))</span>
<span class="hljs-comment">// Add a new input to our builder</span>
builder += input
@ -141,11 +141,11 @@ builder += input
<span class="hljs-comment">// We can now generate a RawTxBuilderResult ready to be finalized</span>
<span class="hljs-keyword">val</span> builderResult = builder.result()
<span class="hljs-comment">// builderResult: RawTxBuilderResult = RawTxBuilderResult(Int32Impl(2),Vector(TransactionInputImpl(TransactionOutPoint(79bf92a6b00b69d759013e8f472c7cfff03d75c0a39f4b463f4824e96cb802fe:0),EmptyScriptSignature,UInt32Impl(0))),Vector(TransactionOutput(5000 sats,pkh(d54a3cd0a862553d9d1a7545290beb1e2df10e7a))),UInt32Impl(0))</span>
<span class="hljs-comment">// builderResult: RawTxBuilderResult = RawTxBuilderResult(Int32Impl(2),Vector(TransactionInputImpl(TransactionOutPoint(260e7c7a1f3fafe1971ce010e2149ca855d7180d67ea8b64ad10a46a89f78f0b:0),EmptyScriptSignature,UInt32Impl(0))),Vector(TransactionOutput(5000 sats,pkh(d830d635191166eb84f75b622e439a856b515d9c))),UInt32Impl(0))</span>
<span class="hljs-comment">// this contains the information needed to analyze our input during finalization</span>
<span class="hljs-keyword">val</span> inputInfo = <span class="hljs-type">P2PKHInputInfo</span>(outPoint, amount, privKey.publicKey)
<span class="hljs-comment">// inputInfo: P2PKHInputInfo = P2PKHInputInfo(TransactionOutPoint(79bf92a6b00b69d759013e8f472c7cfff03d75c0a39f4b463f4824e96cb802fe:0),10000 sats,ECPublicKey(0296504503624a26df85ca790805a108d625a5987d979932120b9f7a51a2d52717))</span>
<span class="hljs-comment">// inputInfo: P2PKHInputInfo = P2PKHInputInfo(TransactionOutPoint(260e7c7a1f3fafe1971ce010e2149ca855d7180d67ea8b64ad10a46a89f78f0b:0),10000 sats,ECPublicKey(03be37a2f3ba41fc8bbd9a944acb7a4783930b7fe63acfda3d2d0927a59239e69b))</span>
<span class="hljs-comment">// this is how much we are going to pay as a fee to the network</span>
<span class="hljs-comment">// for this example, we are going to pay 1 satoshi per byte</span>
@ -155,18 +155,18 @@ builder += input
<span class="hljs-keyword">val</span> changePrivKey = <span class="hljs-type">ECPrivateKey</span>.freshPrivateKey
<span class="hljs-comment">// changePrivKey: ECPrivateKey = Masked(ECPrivateKey)</span>
<span class="hljs-keyword">val</span> changeSPK = <span class="hljs-type">P2PKHScriptPubKey</span>(pubKey = changePrivKey.publicKey)
<span class="hljs-comment">// changeSPK: P2PKHScriptPubKey = pkh(fa9631d7c5cd4eee3bc3fa2037090b2ceae36ddd)</span>
<span class="hljs-comment">// changeSPK: P2PKHScriptPubKey = pkh(98923a4133caa1db89aa2c0f7c668ac876e507fe)</span>
<span class="hljs-comment">// We chose a finalizer that adds a change output to our tx based on a fee rate</span>
<span class="hljs-keyword">val</span> finalizer = <span class="hljs-type">StandardNonInteractiveFinalizer</span>(
<span class="hljs-type">Vector</span>(inputInfo),
feeRate,
changeSPK)
<span class="hljs-comment">// finalizer: StandardNonInteractiveFinalizer = StandardNonInteractiveFinalizer(Vector(P2PKHInputInfo(TransactionOutPoint(79bf92a6b00b69d759013e8f472c7cfff03d75c0a39f4b463f4824e96cb802fe:0),10000 sats,ECPublicKey(0296504503624a26df85ca790805a108d625a5987d979932120b9f7a51a2d52717))),1 sats/byte,pkh(fa9631d7c5cd4eee3bc3fa2037090b2ceae36ddd))</span>
<span class="hljs-comment">// finalizer: StandardNonInteractiveFinalizer = StandardNonInteractiveFinalizer(Vector(P2PKHInputInfo(TransactionOutPoint(260e7c7a1f3fafe1971ce010e2149ca855d7180d67ea8b64ad10a46a89f78f0b:0),10000 sats,ECPublicKey(03be37a2f3ba41fc8bbd9a944acb7a4783930b7fe63acfda3d2d0927a59239e69b))),1 sats/byte,pkh(98923a4133caa1db89aa2c0f7c668ac876e507fe))</span>
<span class="hljs-comment">// We can now finalize the tx builder result from earlier with this finalizer</span>
<span class="hljs-keyword">val</span> unsignedTx: <span class="hljs-type">Transaction</span> = finalizer.buildTx(builderResult)
<span class="hljs-comment">// unsignedTx: Transaction = BaseTransaction(Int32Impl(2),Vector(TransactionInputImpl(TransactionOutPoint(79bf92a6b00b69d759013e8f472c7cfff03d75c0a39f4b463f4824e96cb802fe:0),EmptyScriptSignature,UInt32Impl(0))),Vector(TransactionOutput(5000 sats,pkh(d54a3cd0a862553d9d1a7545290beb1e2df10e7a)), TransactionOutput(4775 sats,pkh(fa9631d7c5cd4eee3bc3fa2037090b2ceae36ddd))),UInt32Impl(0))</span>
<span class="hljs-comment">// unsignedTx: Transaction = BaseTransaction(Int32Impl(2),Vector(TransactionInputImpl(TransactionOutPoint(260e7c7a1f3fafe1971ce010e2149ca855d7180d67ea8b64ad10a46a89f78f0b:0),EmptyScriptSignature,UInt32Impl(0))),Vector(TransactionOutput(5000 sats,pkh(d830d635191166eb84f75b622e439a856b515d9c)), TransactionOutput(4775 sats,pkh(98923a4133caa1db89aa2c0f7c668ac876e507fe))),UInt32Impl(0))</span>
<span class="hljs-comment">// We now turn to signing the unsigned transaction</span>
<span class="hljs-comment">// this contains all the information we need to</span>
@ -176,12 +176,12 @@ builder += input
signers = <span class="hljs-type">Vector</span>(privKey),
hashType =
<span class="hljs-type">HashType</span>.sigHashAll)
<span class="hljs-comment">// utxoInfo: ScriptSignatureParams[P2PKHInputInfo] = ScriptSignatureParams(P2PKHInputInfo(TransactionOutPoint(79bf92a6b00b69d759013e8f472c7cfff03d75c0a39f4b463f4824e96cb802fe:0),10000 sats,ECPublicKey(0296504503624a26df85ca790805a108d625a5987d979932120b9f7a51a2d52717)),BaseTransaction(Int32Impl(1),Vector(),Vector(TransactionOutput(10000 sats,pkh(5db56da774d943dfb75dff905ba53207f630d739))),UInt32Impl(0)),Vector(Masked(ECPrivateKey)),SIGHASH_ALL(Int32Impl(1)))</span>
<span class="hljs-comment">// utxoInfo: ScriptSignatureParams[P2PKHInputInfo] = ScriptSignatureParams(P2PKHInputInfo(TransactionOutPoint(260e7c7a1f3fafe1971ce010e2149ca855d7180d67ea8b64ad10a46a89f78f0b:0),10000 sats,ECPublicKey(03be37a2f3ba41fc8bbd9a944acb7a4783930b7fe63acfda3d2d0927a59239e69b)),BaseTransaction(Int32Impl(1),Vector(),Vector(TransactionOutput(10000 sats,pkh(8c6464320d9facfef6b1fd209b2e15aa65335e84))),UInt32Impl(0)),Vector(Masked(ECPrivateKey)),SIGHASH_ALL(Int32Impl(1)))</span>
<span class="hljs-comment">// all of the UTXO spending information, since we only have</span>
<span class="hljs-comment">// one input, this is just one element</span>
<span class="hljs-keyword">val</span> utxoInfos: <span class="hljs-type">Vector</span>[<span class="hljs-type">ScriptSignatureParams</span>[<span class="hljs-type">InputInfo</span>]] = <span class="hljs-type">Vector</span>(utxoInfo)
<span class="hljs-comment">// utxoInfos: Vector[ScriptSignatureParams[InputInfo]] = Vector(ScriptSignatureParams(P2PKHInputInfo(TransactionOutPoint(79bf92a6b00b69d759013e8f472c7cfff03d75c0a39f4b463f4824e96cb802fe:0),10000 sats,ECPublicKey(0296504503624a26df85ca790805a108d625a5987d979932120b9f7a51a2d52717)),BaseTransaction(Int32Impl(1),Vector(),Vector(TransactionOutput(10000 sats,pkh(5db56da774d943dfb75dff905ba53207f630d739))),UInt32Impl(0)),Vector(Masked(ECPrivateKey)),SIGHASH_ALL(Int32Impl(1))))</span>
<span class="hljs-comment">// utxoInfos: Vector[ScriptSignatureParams[InputInfo]] = Vector(ScriptSignatureParams(P2PKHInputInfo(TransactionOutPoint(260e7c7a1f3fafe1971ce010e2149ca855d7180d67ea8b64ad10a46a89f78f0b:0),10000 sats,ECPublicKey(03be37a2f3ba41fc8bbd9a944acb7a4783930b7fe63acfda3d2d0927a59239e69b)),BaseTransaction(Int32Impl(1),Vector(),Vector(TransactionOutput(10000 sats,pkh(8c6464320d9facfef6b1fd209b2e15aa65335e84))),UInt32Impl(0)),Vector(Masked(ECPrivateKey)),SIGHASH_ALL(Int32Impl(1))))</span>
<span class="hljs-comment">// Yay! Now we use the RawTxSigner object to sign the tx.</span>
<span class="hljs-comment">// The 'sign' method is going produce a validly signed transaction</span>
@ -197,7 +197,7 @@ builder += input
utxoInfos = utxoInfos,
expectedFeeRate = feeRate
)
<span class="hljs-comment">// signedTx: Transaction = BaseTransaction(Int32Impl(2),Vector(TransactionInputImpl(TransactionOutPoint(79bf92a6b00b69d759013e8f472c7cfff03d75c0a39f4b463f4824e96cb802fe:0),P2PKHScriptSignature(ECPublicKeyBytes(ByteVector(33 bytes, 0x0296504503624a26df85ca790805a108d625a5987d979932120b9f7a51a2d52717)), ECDigitalSignature(30440220045ad7ef466cd67fe10b28e9aba6d0e337807e4bb83a0ff96589c64c6c39f49e022012c85f28619cbb1333751f626251860f5d9915d0f8ac71636fd4cc1405f8fad601)),UInt32Impl(0))),Vector(TransactionOutput(5000 sats,pkh(d54a3cd0a862553d9d1a7545290beb1e2df10e7a)), TransactionOutput(4775 sats,pkh(fa9631d7c5cd4eee3bc3fa2037090b2ceae36ddd))),UInt32Impl(0))</span>
<span class="hljs-comment">// signedTx: Transaction = BaseTransaction(Int32Impl(2),Vector(TransactionInputImpl(TransactionOutPoint(260e7c7a1f3fafe1971ce010e2149ca855d7180d67ea8b64ad10a46a89f78f0b:0),P2PKHScriptSignature(ECPublicKeyBytes(ByteVector(33 bytes, 0x03be37a2f3ba41fc8bbd9a944acb7a4783930b7fe63acfda3d2d0927a59239e69b)), ECDigitalSignature(304402203ef58e05be9be992d0cf4d18df9492d0a829cd4537b75cb09d5271d80ff9150e02207e9c203f2732782957a0208d4e333d8c056562b52219cbc5d64af58a81bd596101)),UInt32Impl(0))),Vector(TransactionOutput(5000 sats,pkh(d830d635191166eb84f75b622e439a856b515d9c)), TransactionOutput(4775 sats,pkh(98923a4133caa1db89aa2c0f7c668ac876e507fe))),UInt32Impl(0))</span>
</code></pre>
<pre><code class="hljs css language-scala">signedTx.inputs.length
<span class="hljs-comment">// res2: Int = 1</span>
@ -207,7 +207,7 @@ signedTx.outputs.length
<span class="hljs-comment">//remember, you can call .hex on any bitcoin-s data structure to get the hex representation!</span>
signedTx.hex
<span class="hljs-comment">// res4: String = 0200000001fe02b86ce924483f464b9fa3c0753df0ff7c2c478f3e0159d7690bb0a692bf79000000006a4730440220045ad7ef466cd67fe10b28e9aba6d0e337807e4bb83a0ff96589c64c6c39f49e022012c85f28619cbb1333751f626251860f5d9915d0f8ac71636fd4cc1405f8fad601210296504503624a26df85ca790805a108d625a5987d979932120b9f7a51a2d52717000000000288130000000000001976a914d54a3cd0a862553d9d1a7545290beb1e2df10e7a88aca7120000000000001976a914fa9631d7c5cd4eee3bc3fa2037090b2ceae36ddd88ac00000000</span>
<span class="hljs-comment">// res4: String = 02000000010b8ff7896aa410ad648bea670d18d755a89c14e210e01c97e1af3f1f7a7c0e26000000006a47304402203ef58e05be9be992d0cf4d18df9492d0a829cd4537b75cb09d5271d80ff9150e02207e9c203f2732782957a0208d4e333d8c056562b52219cbc5d64af58a81bd5961012103be37a2f3ba41fc8bbd9a944acb7a4783930b7fe63acfda3d2d0927a59239e69b000000000288130000000000001976a914d830d635191166eb84f75b622e439a856b515d9c88aca7120000000000001976a91498923a4133caa1db89aa2c0f7c668ac876e507fe88ac00000000</span>
</code></pre>
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@ -64,7 +64,7 @@
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</script></nav></div><div class="container mainContainer docsContainer"><div class="wrapper"><div class="post"><header class="postHeader"><a class="edit-page-link button" href="https://github.com/bitcoin-s/bitcoin-s/blob/master/docs/core/txbuilder.md" target="_blank" rel="noreferrer noopener">Edit</a><h1 id="__docusaurus" class="postHeaderTitle">TxBuilder Example</h1></header><article><div><span><p>Bitcoin-S features a transaction building API that allows you to construct and sign Bitcoin transactions. Here's an example of how to use it</p>
<pre><code class="hljs css language-scala"><span class="hljs-keyword">implicit</span> <span class="hljs-keyword">val</span> ec: <span class="hljs-type">ExecutionContext</span> = <span class="hljs-type">ExecutionContext</span>.<span class="hljs-type">Implicits</span>.global
<span class="hljs-comment">// ec: ExecutionContext = scala.concurrent.impl.ExecutionContextImpl$$anon$3@7ebf7786[Running, parallelism = 2, size = 0, active = 0, running = 0, steals = 0, tasks = 0, submissions = 0]</span>
<span class="hljs-comment">// ec: ExecutionContext = scala.concurrent.impl.ExecutionContextImpl$$anon$3@3c5e8578[Running, parallelism = 2, size = 0, active = 0, running = 0, steals = 0, tasks = 0, submissions = 0]</span>
<span class="hljs-comment">// Initialize a transaction builder</span>
<span class="hljs-keyword">val</span> builder = <span class="hljs-type">RawTxBuilder</span>()
@ -74,19 +74,19 @@
<span class="hljs-keyword">val</span> privKey = <span class="hljs-type">ECPrivateKey</span>.freshPrivateKey
<span class="hljs-comment">// privKey: ECPrivateKey = Masked(ECPrivateKey)</span>
<span class="hljs-keyword">val</span> pubKey = privKey.publicKey
<span class="hljs-comment">// pubKey: ECPublicKey = ECPublicKey(0296504503624a26df85ca790805a108d625a5987d979932120b9f7a51a2d52717)</span>
<span class="hljs-comment">// pubKey: ECPublicKey = ECPublicKey(03be37a2f3ba41fc8bbd9a944acb7a4783930b7fe63acfda3d2d0927a59239e69b)</span>
<span class="hljs-comment">// this is the script that the TxBuilder is going to create a</span>
<span class="hljs-comment">// script signature that validly spends this scriptPubKey</span>
<span class="hljs-keyword">val</span> creditingSpk = <span class="hljs-type">P2PKHScriptPubKey</span>(pubKey = privKey.publicKey)
<span class="hljs-comment">// creditingSpk: P2PKHScriptPubKey = pkh(5db56da774d943dfb75dff905ba53207f630d739)</span>
<span class="hljs-comment">// creditingSpk: P2PKHScriptPubKey = pkh(8c6464320d9facfef6b1fd209b2e15aa65335e84)</span>
<span class="hljs-keyword">val</span> amount = <span class="hljs-number">10000.</span>satoshis
<span class="hljs-comment">// amount: Satoshis = 10000 sats</span>
<span class="hljs-comment">// this is the UTXO we are going to be spending</span>
<span class="hljs-keyword">val</span> utxo =
<span class="hljs-type">TransactionOutput</span>(value = amount, scriptPubKey = creditingSpk)
<span class="hljs-comment">// utxo: TransactionOutput = TransactionOutput(10000 sats,pkh(5db56da774d943dfb75dff905ba53207f630d739))</span>
<span class="hljs-comment">// utxo: TransactionOutput = TransactionOutput(10000 sats,pkh(8c6464320d9facfef6b1fd209b2e15aa65335e84))</span>
<span class="hljs-comment">// the private key that locks the funds for the script we are spending too</span>
<span class="hljs-keyword">val</span> destinationPrivKey = <span class="hljs-type">ECPrivateKey</span>.freshPrivateKey
@ -99,7 +99,7 @@
<span class="hljs-comment">// the script that corresponds to destination private key, this is what is receiving the money</span>
<span class="hljs-keyword">val</span> destinationSPK =
<span class="hljs-type">P2PKHScriptPubKey</span>(pubKey = destinationPrivKey.publicKey)
<span class="hljs-comment">// destinationSPK: P2PKHScriptPubKey = pkh(d54a3cd0a862553d9d1a7545290beb1e2df10e7a)</span>
<span class="hljs-comment">// destinationSPK: P2PKHScriptPubKey = pkh(d830d635191166eb84f75b622e439a856b515d9c)</span>
<span class="hljs-comment">// this is where we are sending money too</span>
<span class="hljs-comment">// we could add more destinations here if we</span>
@ -110,7 +110,7 @@
<span class="hljs-type">Vector</span>(destination0)
}
<span class="hljs-comment">// destinations: Vector[TransactionOutput] = Vector(TransactionOutput(5000 sats,pkh(d54a3cd0a862553d9d1a7545290beb1e2df10e7a)))</span>
<span class="hljs-comment">// destinations: Vector[TransactionOutput] = Vector(TransactionOutput(5000 sats,pkh(d830d635191166eb84f75b622e439a856b515d9c)))</span>
<span class="hljs-comment">// Add the destinations to the tx builder</span>
builder ++= destinations
@ -123,17 +123,17 @@ builder ++= destinations
inputs = <span class="hljs-type">Vector</span>.empty,
outputs = <span class="hljs-type">Vector</span>(utxo),
lockTime = <span class="hljs-type">UInt32</span>.zero)
<span class="hljs-comment">// creditingTx: BaseTransaction = BaseTransaction(Int32Impl(1),Vector(),Vector(TransactionOutput(10000 sats,pkh(5db56da774d943dfb75dff905ba53207f630d739))),UInt32Impl(0))</span>
<span class="hljs-comment">// creditingTx: BaseTransaction = BaseTransaction(Int32Impl(1),Vector(),Vector(TransactionOutput(10000 sats,pkh(8c6464320d9facfef6b1fd209b2e15aa65335e84))),UInt32Impl(0))</span>
<span class="hljs-comment">// this is the information we need from the crediting TX</span>
<span class="hljs-comment">// to properly "link" it in the transaction we are creating</span>
<span class="hljs-keyword">val</span> outPoint = <span class="hljs-type">TransactionOutPoint</span>(creditingTx.txId, <span class="hljs-type">UInt32</span>.zero)
<span class="hljs-comment">// outPoint: TransactionOutPoint = TransactionOutPoint(79bf92a6b00b69d759013e8f472c7cfff03d75c0a39f4b463f4824e96cb802fe:0)</span>
<span class="hljs-comment">// outPoint: TransactionOutPoint = TransactionOutPoint(260e7c7a1f3fafe1971ce010e2149ca855d7180d67ea8b64ad10a46a89f78f0b:0)</span>
<span class="hljs-keyword">val</span> input = <span class="hljs-type">TransactionInput</span>(
outPoint,
<span class="hljs-type">EmptyScriptSignature</span>,
sequenceNumber = <span class="hljs-type">UInt32</span>.zero)
<span class="hljs-comment">// input: TransactionInput = TransactionInputImpl(TransactionOutPoint(79bf92a6b00b69d759013e8f472c7cfff03d75c0a39f4b463f4824e96cb802fe:0),EmptyScriptSignature,UInt32Impl(0))</span>
<span class="hljs-comment">// input: TransactionInput = TransactionInputImpl(TransactionOutPoint(260e7c7a1f3fafe1971ce010e2149ca855d7180d67ea8b64ad10a46a89f78f0b:0),EmptyScriptSignature,UInt32Impl(0))</span>
<span class="hljs-comment">// Add a new input to our builder</span>
builder += input
@ -141,11 +141,11 @@ builder += input
<span class="hljs-comment">// We can now generate a RawTxBuilderResult ready to be finalized</span>
<span class="hljs-keyword">val</span> builderResult = builder.result()
<span class="hljs-comment">// builderResult: RawTxBuilderResult = RawTxBuilderResult(Int32Impl(2),Vector(TransactionInputImpl(TransactionOutPoint(79bf92a6b00b69d759013e8f472c7cfff03d75c0a39f4b463f4824e96cb802fe:0),EmptyScriptSignature,UInt32Impl(0))),Vector(TransactionOutput(5000 sats,pkh(d54a3cd0a862553d9d1a7545290beb1e2df10e7a))),UInt32Impl(0))</span>
<span class="hljs-comment">// builderResult: RawTxBuilderResult = RawTxBuilderResult(Int32Impl(2),Vector(TransactionInputImpl(TransactionOutPoint(260e7c7a1f3fafe1971ce010e2149ca855d7180d67ea8b64ad10a46a89f78f0b:0),EmptyScriptSignature,UInt32Impl(0))),Vector(TransactionOutput(5000 sats,pkh(d830d635191166eb84f75b622e439a856b515d9c))),UInt32Impl(0))</span>
<span class="hljs-comment">// this contains the information needed to analyze our input during finalization</span>
<span class="hljs-keyword">val</span> inputInfo = <span class="hljs-type">P2PKHInputInfo</span>(outPoint, amount, privKey.publicKey)
<span class="hljs-comment">// inputInfo: P2PKHInputInfo = P2PKHInputInfo(TransactionOutPoint(79bf92a6b00b69d759013e8f472c7cfff03d75c0a39f4b463f4824e96cb802fe:0),10000 sats,ECPublicKey(0296504503624a26df85ca790805a108d625a5987d979932120b9f7a51a2d52717))</span>
<span class="hljs-comment">// inputInfo: P2PKHInputInfo = P2PKHInputInfo(TransactionOutPoint(260e7c7a1f3fafe1971ce010e2149ca855d7180d67ea8b64ad10a46a89f78f0b:0),10000 sats,ECPublicKey(03be37a2f3ba41fc8bbd9a944acb7a4783930b7fe63acfda3d2d0927a59239e69b))</span>
<span class="hljs-comment">// this is how much we are going to pay as a fee to the network</span>
<span class="hljs-comment">// for this example, we are going to pay 1 satoshi per byte</span>
@ -155,18 +155,18 @@ builder += input
<span class="hljs-keyword">val</span> changePrivKey = <span class="hljs-type">ECPrivateKey</span>.freshPrivateKey
<span class="hljs-comment">// changePrivKey: ECPrivateKey = Masked(ECPrivateKey)</span>
<span class="hljs-keyword">val</span> changeSPK = <span class="hljs-type">P2PKHScriptPubKey</span>(pubKey = changePrivKey.publicKey)
<span class="hljs-comment">// changeSPK: P2PKHScriptPubKey = pkh(fa9631d7c5cd4eee3bc3fa2037090b2ceae36ddd)</span>
<span class="hljs-comment">// changeSPK: P2PKHScriptPubKey = pkh(98923a4133caa1db89aa2c0f7c668ac876e507fe)</span>
<span class="hljs-comment">// We chose a finalizer that adds a change output to our tx based on a fee rate</span>
<span class="hljs-keyword">val</span> finalizer = <span class="hljs-type">StandardNonInteractiveFinalizer</span>(
<span class="hljs-type">Vector</span>(inputInfo),
feeRate,
changeSPK)
<span class="hljs-comment">// finalizer: StandardNonInteractiveFinalizer = StandardNonInteractiveFinalizer(Vector(P2PKHInputInfo(TransactionOutPoint(79bf92a6b00b69d759013e8f472c7cfff03d75c0a39f4b463f4824e96cb802fe:0),10000 sats,ECPublicKey(0296504503624a26df85ca790805a108d625a5987d979932120b9f7a51a2d52717))),1 sats/byte,pkh(fa9631d7c5cd4eee3bc3fa2037090b2ceae36ddd))</span>
<span class="hljs-comment">// finalizer: StandardNonInteractiveFinalizer = StandardNonInteractiveFinalizer(Vector(P2PKHInputInfo(TransactionOutPoint(260e7c7a1f3fafe1971ce010e2149ca855d7180d67ea8b64ad10a46a89f78f0b:0),10000 sats,ECPublicKey(03be37a2f3ba41fc8bbd9a944acb7a4783930b7fe63acfda3d2d0927a59239e69b))),1 sats/byte,pkh(98923a4133caa1db89aa2c0f7c668ac876e507fe))</span>
<span class="hljs-comment">// We can now finalize the tx builder result from earlier with this finalizer</span>
<span class="hljs-keyword">val</span> unsignedTx: <span class="hljs-type">Transaction</span> = finalizer.buildTx(builderResult)
<span class="hljs-comment">// unsignedTx: Transaction = BaseTransaction(Int32Impl(2),Vector(TransactionInputImpl(TransactionOutPoint(79bf92a6b00b69d759013e8f472c7cfff03d75c0a39f4b463f4824e96cb802fe:0),EmptyScriptSignature,UInt32Impl(0))),Vector(TransactionOutput(5000 sats,pkh(d54a3cd0a862553d9d1a7545290beb1e2df10e7a)), TransactionOutput(4775 sats,pkh(fa9631d7c5cd4eee3bc3fa2037090b2ceae36ddd))),UInt32Impl(0))</span>
<span class="hljs-comment">// unsignedTx: Transaction = BaseTransaction(Int32Impl(2),Vector(TransactionInputImpl(TransactionOutPoint(260e7c7a1f3fafe1971ce010e2149ca855d7180d67ea8b64ad10a46a89f78f0b:0),EmptyScriptSignature,UInt32Impl(0))),Vector(TransactionOutput(5000 sats,pkh(d830d635191166eb84f75b622e439a856b515d9c)), TransactionOutput(4775 sats,pkh(98923a4133caa1db89aa2c0f7c668ac876e507fe))),UInt32Impl(0))</span>
<span class="hljs-comment">// We now turn to signing the unsigned transaction</span>
<span class="hljs-comment">// this contains all the information we need to</span>
@ -176,12 +176,12 @@ builder += input
signers = <span class="hljs-type">Vector</span>(privKey),
hashType =
<span class="hljs-type">HashType</span>.sigHashAll)
<span class="hljs-comment">// utxoInfo: ScriptSignatureParams[P2PKHInputInfo] = ScriptSignatureParams(P2PKHInputInfo(TransactionOutPoint(79bf92a6b00b69d759013e8f472c7cfff03d75c0a39f4b463f4824e96cb802fe:0),10000 sats,ECPublicKey(0296504503624a26df85ca790805a108d625a5987d979932120b9f7a51a2d52717)),BaseTransaction(Int32Impl(1),Vector(),Vector(TransactionOutput(10000 sats,pkh(5db56da774d943dfb75dff905ba53207f630d739))),UInt32Impl(0)),Vector(Masked(ECPrivateKey)),SIGHASH_ALL(Int32Impl(1)))</span>
<span class="hljs-comment">// utxoInfo: ScriptSignatureParams[P2PKHInputInfo] = ScriptSignatureParams(P2PKHInputInfo(TransactionOutPoint(260e7c7a1f3fafe1971ce010e2149ca855d7180d67ea8b64ad10a46a89f78f0b:0),10000 sats,ECPublicKey(03be37a2f3ba41fc8bbd9a944acb7a4783930b7fe63acfda3d2d0927a59239e69b)),BaseTransaction(Int32Impl(1),Vector(),Vector(TransactionOutput(10000 sats,pkh(8c6464320d9facfef6b1fd209b2e15aa65335e84))),UInt32Impl(0)),Vector(Masked(ECPrivateKey)),SIGHASH_ALL(Int32Impl(1)))</span>
<span class="hljs-comment">// all of the UTXO spending information, since we only have</span>
<span class="hljs-comment">// one input, this is just one element</span>
<span class="hljs-keyword">val</span> utxoInfos: <span class="hljs-type">Vector</span>[<span class="hljs-type">ScriptSignatureParams</span>[<span class="hljs-type">InputInfo</span>]] = <span class="hljs-type">Vector</span>(utxoInfo)
<span class="hljs-comment">// utxoInfos: Vector[ScriptSignatureParams[InputInfo]] = Vector(ScriptSignatureParams(P2PKHInputInfo(TransactionOutPoint(79bf92a6b00b69d759013e8f472c7cfff03d75c0a39f4b463f4824e96cb802fe:0),10000 sats,ECPublicKey(0296504503624a26df85ca790805a108d625a5987d979932120b9f7a51a2d52717)),BaseTransaction(Int32Impl(1),Vector(),Vector(TransactionOutput(10000 sats,pkh(5db56da774d943dfb75dff905ba53207f630d739))),UInt32Impl(0)),Vector(Masked(ECPrivateKey)),SIGHASH_ALL(Int32Impl(1))))</span>
<span class="hljs-comment">// utxoInfos: Vector[ScriptSignatureParams[InputInfo]] = Vector(ScriptSignatureParams(P2PKHInputInfo(TransactionOutPoint(260e7c7a1f3fafe1971ce010e2149ca855d7180d67ea8b64ad10a46a89f78f0b:0),10000 sats,ECPublicKey(03be37a2f3ba41fc8bbd9a944acb7a4783930b7fe63acfda3d2d0927a59239e69b)),BaseTransaction(Int32Impl(1),Vector(),Vector(TransactionOutput(10000 sats,pkh(8c6464320d9facfef6b1fd209b2e15aa65335e84))),UInt32Impl(0)),Vector(Masked(ECPrivateKey)),SIGHASH_ALL(Int32Impl(1))))</span>
<span class="hljs-comment">// Yay! Now we use the RawTxSigner object to sign the tx.</span>
<span class="hljs-comment">// The 'sign' method is going produce a validly signed transaction</span>
@ -197,7 +197,7 @@ builder += input
utxoInfos = utxoInfos,
expectedFeeRate = feeRate
)
<span class="hljs-comment">// signedTx: Transaction = BaseTransaction(Int32Impl(2),Vector(TransactionInputImpl(TransactionOutPoint(79bf92a6b00b69d759013e8f472c7cfff03d75c0a39f4b463f4824e96cb802fe:0),P2PKHScriptSignature(ECPublicKeyBytes(ByteVector(33 bytes, 0x0296504503624a26df85ca790805a108d625a5987d979932120b9f7a51a2d52717)), ECDigitalSignature(30440220045ad7ef466cd67fe10b28e9aba6d0e337807e4bb83a0ff96589c64c6c39f49e022012c85f28619cbb1333751f626251860f5d9915d0f8ac71636fd4cc1405f8fad601)),UInt32Impl(0))),Vector(TransactionOutput(5000 sats,pkh(d54a3cd0a862553d9d1a7545290beb1e2df10e7a)), TransactionOutput(4775 sats,pkh(fa9631d7c5cd4eee3bc3fa2037090b2ceae36ddd))),UInt32Impl(0))</span>
<span class="hljs-comment">// signedTx: Transaction = BaseTransaction(Int32Impl(2),Vector(TransactionInputImpl(TransactionOutPoint(260e7c7a1f3fafe1971ce010e2149ca855d7180d67ea8b64ad10a46a89f78f0b:0),P2PKHScriptSignature(ECPublicKeyBytes(ByteVector(33 bytes, 0x03be37a2f3ba41fc8bbd9a944acb7a4783930b7fe63acfda3d2d0927a59239e69b)), ECDigitalSignature(304402203ef58e05be9be992d0cf4d18df9492d0a829cd4537b75cb09d5271d80ff9150e02207e9c203f2732782957a0208d4e333d8c056562b52219cbc5d64af58a81bd596101)),UInt32Impl(0))),Vector(TransactionOutput(5000 sats,pkh(d830d635191166eb84f75b622e439a856b515d9c)), TransactionOutput(4775 sats,pkh(98923a4133caa1db89aa2c0f7c668ac876e507fe))),UInt32Impl(0))</span>
</code></pre>
<pre><code class="hljs css language-scala">signedTx.inputs.length
<span class="hljs-comment">// res2: Int = 1</span>
@ -207,7 +207,7 @@ signedTx.outputs.length
<span class="hljs-comment">//remember, you can call .hex on any bitcoin-s data structure to get the hex representation!</span>
signedTx.hex
<span class="hljs-comment">// res4: String = 0200000001fe02b86ce924483f464b9fa3c0753df0ff7c2c478f3e0159d7690bb0a692bf79000000006a4730440220045ad7ef466cd67fe10b28e9aba6d0e337807e4bb83a0ff96589c64c6c39f49e022012c85f28619cbb1333751f626251860f5d9915d0f8ac71636fd4cc1405f8fad601210296504503624a26df85ca790805a108d625a5987d979932120b9f7a51a2d52717000000000288130000000000001976a914d54a3cd0a862553d9d1a7545290beb1e2df10e7a88aca7120000000000001976a914fa9631d7c5cd4eee3bc3fa2037090b2ceae36ddd88ac00000000</span>
<span class="hljs-comment">// res4: String = 02000000010b8ff7896aa410ad648bea670d18d755a89c14e210e01c97e1af3f1f7a7c0e26000000006a47304402203ef58e05be9be992d0cf4d18df9492d0a829cd4537b75cb09d5271d80ff9150e02207e9c203f2732782957a0208d4e333d8c056562b52219cbc5d64af58a81bd5961012103be37a2f3ba41fc8bbd9a944acb7a4783930b7fe63acfda3d2d0927a59239e69b000000000288130000000000001976a914d830d635191166eb84f75b622e439a856b515d9c88aca7120000000000001976a91498923a4133caa1db89aa2c0f7c668ac876e507fe88ac00000000</span>
</code></pre>
</span></div></article></div><div class="docs-prevnext"><a class="docs-prev button" href="/docs/next/core/dlc"><span class="arrow-prev">← </span><span>Discreet Log Contract Data Structures</span></a><a class="docs-next button" href="/docs/next/core/lightning-network"><span>Lightning Network Data Types</span><span class="arrow-next"> →</span></a></div></div></div><nav class="onPageNav"></nav></div><footer class="nav-footer" id="footer"><section class="sitemap"><a href="/" class="nav-home"><img src="/img/favicon.ico" alt="bitcoin-s" width="66" height="58"/></a><div><h5>Docs</h5><a href="/docs/en/getting-started">Getting Started</a><a href="/docs/en/core/core-intro">Guides</a><a href="/api/org/bitcoins">API Reference</a></div><div><h5>Community</h5><a href="/en/users.html">User Showcase</a><a href="https://join.slack.com/t/suredbits/shared_invite/zt-eavycu0x-WQL7XOakzQo8tAy7jHHZUw" target="_blank" rel="noreferrer noopener">Slack</a><a href="https://gitter.im/bitcoin-s-core/">Gitter chat</a></div><div><h5>More</h5><a href="https://github.com/bitcoin-s/bitcoin-s">GitHub</a><a class="github-button" href="https://github.com/bitcoin-s/bitcoin-s" data-icon="octicon-star" data-count-href="/bitcoin-s/bitcoin-s-core/stargazers" data-show-count="true" data-count-aria-label="# stargazers on GitHub" aria-label="Star this project on GitHub">Star</a></div></section><section class="copyright">Copyright © 2021 Suredbits &amp; the bitcoin-s developers</section></footer></div><script type="text/javascript" src="https://cdn.jsdelivr.net/docsearch.js/1/docsearch.min.js"></script><script>
document.addEventListener('keyup', function(e) {

4
docs/next/crypto/sign.html
View file

@ -96,13 +96,13 @@
<span class="hljs-comment">// extPrivKey: ExtPrivateKey = Masked(ExtPrivateKeyImpl)</span>
extPrivKey.sign(<span class="hljs-type">DoubleSha256Digest</span>.empty.bytes)
<span class="hljs-comment">// res0: ECDigitalSignature = ECDigitalSignature(3045022100db3fe04b2860d0a8bab823f7afae0a5040f3bfbca557c12f23266cf22a4128ca022007c644dc1ff52095d75caa2788fcdb3ccf4e367a85e808390da43f5c3c85cdde)</span>
<span class="hljs-comment">// res0: ECDigitalSignature = ECDigitalSignature(304402206fd1495c07a2ac32f42a58fbfa732373fff364663d611ea60ced0edaae7877ce02206f8405b144f98368354c95f0efc19fc217a11b59a5dac21e214530955b1c49e2)</span>
<span class="hljs-keyword">val</span> path = <span class="hljs-type">BIP32Path</span>(<span class="hljs-type">Vector</span>(<span class="hljs-type">BIP32Node</span>(<span class="hljs-number">0</span>,<span class="hljs-literal">false</span>)))
<span class="hljs-comment">// path: BIP32Path = m/0</span>
extPrivKey.sign(<span class="hljs-type">DoubleSha256Digest</span>.empty.bytes,path)
<span class="hljs-comment">// res1: ECDigitalSignature = ECDigitalSignature(3045022100ec6fda11415d107d6dd248b5cb87a65f5a534f7d1f1617b8ba1c22e783d66d7f02202efb3995581d5131200d128afdc27014f575e154e9588e140f99bec21f259d86)</span>
<span class="hljs-comment">// res1: ECDigitalSignature = ECDigitalSignature(3044022034a18d4fe6ae5956b05eb3ae0f07b59d419d3cefa9575c8575879b6cd9bd6c75022001a523391d538616c4a2b1ca09b5781503508c261294b5b74a80cdc3facb7730)</span>
</code></pre>
<p>With <code>ExtSign</code>, you can use <code>ExtPrivateKey</code> to sign transactions inside of <code>TxBuilder</code> since <code>UTXOSpendingInfo</code> takes in <code>Sign</code> as a parameter.</p>
<p>You can also provide a <code>path</code> to use to derive a child <code>ExtPrivateKey</code>, and then sign with that child private key</p>

4
docs/next/crypto/sign/index.html
View file

@ -96,13 +96,13 @@
<span class="hljs-comment">// extPrivKey: ExtPrivateKey = Masked(ExtPrivateKeyImpl)</span>
extPrivKey.sign(<span class="hljs-type">DoubleSha256Digest</span>.empty.bytes)
<span class="hljs-comment">// res0: ECDigitalSignature = ECDigitalSignature(3045022100db3fe04b2860d0a8bab823f7afae0a5040f3bfbca557c12f23266cf22a4128ca022007c644dc1ff52095d75caa2788fcdb3ccf4e367a85e808390da43f5c3c85cdde)</span>
<span class="hljs-comment">// res0: ECDigitalSignature = ECDigitalSignature(304402206fd1495c07a2ac32f42a58fbfa732373fff364663d611ea60ced0edaae7877ce02206f8405b144f98368354c95f0efc19fc217a11b59a5dac21e214530955b1c49e2)</span>
<span class="hljs-keyword">val</span> path = <span class="hljs-type">BIP32Path</span>(<span class="hljs-type">Vector</span>(<span class="hljs-type">BIP32Node</span>(<span class="hljs-number">0</span>,<span class="hljs-literal">false</span>)))
<span class="hljs-comment">// path: BIP32Path = m/0</span>
extPrivKey.sign(<span class="hljs-type">DoubleSha256Digest</span>.empty.bytes,path)
<span class="hljs-comment">// res1: ECDigitalSignature = ECDigitalSignature(3045022100ec6fda11415d107d6dd248b5cb87a65f5a534f7d1f1617b8ba1c22e783d66d7f02202efb3995581d5131200d128afdc27014f575e154e9588e140f99bec21f259d86)</span>
<span class="hljs-comment">// res1: ECDigitalSignature = ECDigitalSignature(3044022034a18d4fe6ae5956b05eb3ae0f07b59d419d3cefa9575c8575879b6cd9bd6c75022001a523391d538616c4a2b1ca09b5781503508c261294b5b74a80cdc3facb7730)</span>
</code></pre>
<p>With <code>ExtSign</code>, you can use <code>ExtPrivateKey</code> to sign transactions inside of <code>TxBuilder</code> since <code>UTXOSpendingInfo</code> takes in <code>Sign</code> as a parameter.</p>
<p>You can also provide a <code>path</code> to use to derive a child <code>ExtPrivateKey</code>, and then sign with that child private key</p>

2
docs/next/getting-started.html
View file

@ -123,7 +123,7 @@ libraryDependencies += <span class="hljs-string">"org.bitcoin-s"</span> %% <span
<h3><a class="anchor" aria-hidden="true" id="nightly-builds"></a><a href="#nightly-builds" aria-hidden="true" class="hash-link"><svg class="hash-link-icon" aria-hidden="true" height="16" version="1.1" viewBox="0 0 16 16" width="16"><path fill-rule="evenodd" d="M4 9h1v1H4c-1.5 0-3-1.69-3-3.5S2.55 3 4 3h4c1.45 0 3 1.69 3 3.5 0 1.41-.91 2.72-2 3.25V8.59c.58-.45 1-1.27 1-2.09C10 5.22 8.98 4 8 4H4c-.98 0-2 1.22-2 2.5S3 9 4 9zm9-3h-1v1h1c1 0 2 1.22 2 2.5S13.98 12 13 12H9c-.98 0-2-1.22-2-2.5 0-.83.42-1.64 1-2.09V6.25c-1.09.53-2 1.84-2 3.25C6 11.31 7.55 13 9 13h4c1.45 0 3-1.69 3-3.5S14.5 6 13 6z"></path></svg></a>Nightly builds</h3>
<p>You can also run on the bleeding edge of Bitcoin-S, by
adding a snapshot build to your <code>build.sbt</code>. The most
recent snapshot published is <code>0.6.0-82-4b42b907-SNAPSHOT</code>.</p>
recent snapshot published is <code>0.6.0-83-03a0ca5e-SNAPSHOT</code>.</p>
<p>To fetch snapshots, you will need to add the correct
resolver in your <code>build.sbt</code>:</p>
<pre><code class="hljs css language-sbt">resolvers += Resolver.sonatypeRepo(<span class="hljs-string">"snapshots"</span>)

2
docs/next/getting-started/index.html
View file

@ -123,7 +123,7 @@ libraryDependencies += <span class="hljs-string">"org.bitcoin-s"</span> %% <span
<h3><a class="anchor" aria-hidden="true" id="nightly-builds"></a><a href="#nightly-builds" aria-hidden="true" class="hash-link"><svg class="hash-link-icon" aria-hidden="true" height="16" version="1.1" viewBox="0 0 16 16" width="16"><path fill-rule="evenodd" d="M4 9h1v1H4c-1.5 0-3-1.69-3-3.5S2.55 3 4 3h4c1.45 0 3 1.69 3 3.5 0 1.41-.91 2.72-2 3.25V8.59c.58-.45 1-1.27 1-2.09C10 5.22 8.98 4 8 4H4c-.98 0-2 1.22-2 2.5S3 9 4 9zm9-3h-1v1h1c1 0 2 1.22 2 2.5S13.98 12 13 12H9c-.98 0-2-1.22-2-2.5 0-.83.42-1.64 1-2.09V6.25c-1.09.53-2 1.84-2 3.25C6 11.31 7.55 13 9 13h4c1.45 0 3-1.69 3-3.5S14.5 6 13 6z"></path></svg></a>Nightly builds</h3>
<p>You can also run on the bleeding edge of Bitcoin-S, by
adding a snapshot build to your <code>build.sbt</code>. The most
recent snapshot published is <code>0.6.0-82-4b42b907-SNAPSHOT</code>.</p>
recent snapshot published is <code>0.6.0-83-03a0ca5e-SNAPSHOT</code>.</p>
<p>To fetch snapshots, you will need to add the correct
resolver in your <code>build.sbt</code>:</p>
<pre><code class="hljs css language-sbt">resolvers += Resolver.sonatypeRepo(<span class="hljs-string">"snapshots"</span>)

22
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View file

@ -77,14 +77,14 @@
<span class="hljs-comment">//get 256 bits of random entropy</span>
<span class="hljs-keyword">val</span> entropy = <span class="hljs-type">MnemonicCode</span>.getEntropy256Bits
<span class="hljs-comment">// entropy: scodec.bits.BitVector = BitVector(256 bits, 0x40e897643e1388cd742a1102f172541202c389d6aa3fb105366eda76e9441151)</span>
<span class="hljs-comment">// entropy: scodec.bits.BitVector = BitVector(256 bits, 0xe958285d93c6b57181a785ad179d6ec4525732c5de08e570b70c3a32288e7a79)</span>
<span class="hljs-keyword">val</span> mnemonic = <span class="hljs-type">MnemonicCode</span>.fromEntropy(entropy)
<span class="hljs-comment">// mnemonic: MnemonicCode = Masked(MnemonicCodeImpl)</span>
<span class="hljs-comment">//you can print that mnemonic seed with this</span>
println(mnemonic.words)
<span class="hljs-comment">// Vector(domain, dwarf, suit, label, decade, grit, spawn, drama, actual, merit, never, catch, club, shaft, follow, elevator, rain, claim, option, reject, hub, pear, earn, clump)</span>
<span class="hljs-comment">// Vector(true, scout, blast, chest, hero, rhythm, alley, vague, public, rude, forum, master, century, offer, blast, scissors, tornado, mad, seek, inner, card, elbow, try, decade)</span>
</code></pre>
<p>Now that we have a <code>MnemonicCode</code> that was securely generated, we need to now create <code>KeyManagerParams</code> which tells us how to generate
generate specific kinds of addresses for wallets.</p>
@ -99,7 +99,7 @@ generate specific kinds of addresses for wallets.</p>
<pre><code class="hljs css language-scala"><span class="hljs-comment">//this will create a temp directory with the prefix 'key-manager-example` that will</span>
<span class="hljs-comment">//have a file in it called "encrypted-bitcoin-s-seed.json"</span>
<span class="hljs-keyword">val</span> seedPath = <span class="hljs-type">Files</span>.createTempDirectory(<span class="hljs-string">"key-manager-example"</span>).resolve(<span class="hljs-type">WalletStorage</span>.<span class="hljs-type">ENCRYPTED_SEED_FILE_NAME</span>)
<span class="hljs-comment">// seedPath: Path = /tmp/key-manager-example1518671382314964259/encrypted-bitcoin-s-seed.json</span>
<span class="hljs-comment">// seedPath: Path = /tmp/key-manager-example7435008708614440125/encrypted-bitcoin-s-seed.json</span>
<span class="hljs-comment">//let's create a native segwit key manager</span>
<span class="hljs-keyword">val</span> purpose = <span class="hljs-type">HDPurposes</span>.<span class="hljs-type">SegWit</span>
@ -110,19 +110,19 @@ generate specific kinds of addresses for wallets.</p>
<span class="hljs-comment">// network: RegTest.type = RegTest</span>
<span class="hljs-keyword">val</span> kmParams = <span class="hljs-type">KeyManagerParams</span>(seedPath, purpose, network)
<span class="hljs-comment">// kmParams: KeyManagerParams = KeyManagerParams(/tmp/key-manager-example1518671382314964259/encrypted-bitcoin-s-seed.json,m/84',RegTest)</span>
<span class="hljs-comment">// kmParams: KeyManagerParams = KeyManagerParams(/tmp/key-manager-example7435008708614440125/encrypted-bitcoin-s-seed.json,m/84',RegTest)</span>
<span class="hljs-keyword">val</span> aesPasswordOpt = <span class="hljs-type">Some</span>(<span class="hljs-type">AesPassword</span>.fromString(<span class="hljs-string">"password"</span>))
<span class="hljs-comment">// aesPasswordOpt: Some[AesPassword] = Some(Masked(AesPassword))</span>
<span class="hljs-keyword">val</span> km = <span class="hljs-type">BIP39KeyManager</span>.initializeWithMnemonic(aesPasswordOpt, mnemonic, <span class="hljs-type">None</span>, kmParams)
<span class="hljs-comment">// km: Either[KeyManagerInitializeError, BIP39KeyManager] = Right(org.bitcoins.keymanager.bip39.BIP39KeyManager@717055f0)</span>
<span class="hljs-comment">// km: Either[KeyManagerInitializeError, BIP39KeyManager] = Right(org.bitcoins.keymanager.bip39.BIP39KeyManager@3c083116)</span>
<span class="hljs-keyword">val</span> rootXPub = km.right.get.getRootXPub
<span class="hljs-comment">// rootXPub: ExtPublicKey = vpub5SLqN2bLY4WeaR4HXg1bpbb6nXVTkj4iU6FdsBREx6AQaKVUfm6jhSAkfFA4tNtNFiZT9bXwCRgdkXSULmx4DrFqW2y7yiseMY9yMBLMLeX</span>
<span class="hljs-comment">// rootXPub: ExtPublicKey = vpub5SLqN2bLY4WeZCeAQBwPsxPgoxi2gtctszcuG2cTxFdfDkEyxAgjyPMTYRotFkooGDwpLVZrsq2PBdN9XPwTWigGXTtmLAuVVGxrv7dnz5E</span>
println(rootXPub)
<span class="hljs-comment">// vpub5SLqN2bLY4WeaR4HXg1bpbb6nXVTkj4iU6FdsBREx6AQaKVUfm6jhSAkfFA4tNtNFiZT9bXwCRgdkXSULmx4DrFqW2y7yiseMY9yMBLMLeX</span>
<span class="hljs-comment">// vpub5SLqN2bLY4WeZCeAQBwPsxPgoxi2gtctszcuG2cTxFdfDkEyxAgjyPMTYRotFkooGDwpLVZrsq2PBdN9XPwTWigGXTtmLAuVVGxrv7dnz5E</span>
</code></pre>
<p>Which should print something that looks like this</p>
<p><code>vpub5SLqN2bLY4WeXxMqwJHJFBEwxSscGB2uDUnsTS3edVjZEwTrQDFDNqoR2xLqARQPabGaXsHSTenTRcqm2EnB9MpuC4vSk3LqSgNmGGZtuq7</code></p>
@ -131,17 +131,17 @@ println(rootXPub)
again after initializing it once. You can use the same <code>mnemonic</code> for different networks, which you control <code>KeyManagerParams</code>.</p>
<pre><code class="hljs css language-scala"><span class="hljs-comment">//let's create a nested segwit key manager for mainnet</span>
<span class="hljs-keyword">val</span> mainnetKmParams = <span class="hljs-type">KeyManagerParams</span>(seedPath, <span class="hljs-type">HDPurposes</span>.<span class="hljs-type">SegWit</span>, <span class="hljs-type">MainNet</span>)
<span class="hljs-comment">// mainnetKmParams: KeyManagerParams = KeyManagerParams(/tmp/key-manager-example1518671382314964259/encrypted-bitcoin-s-seed.json,m/84',MainNet)</span>
<span class="hljs-comment">// mainnetKmParams: KeyManagerParams = KeyManagerParams(/tmp/key-manager-example7435008708614440125/encrypted-bitcoin-s-seed.json,m/84',MainNet)</span>
<span class="hljs-comment">//we do not need to all `initializeWithMnemonic()` again as we have saved the seed to dis</span>
<span class="hljs-keyword">val</span> mainnetKeyManager = <span class="hljs-type">BIP39KeyManager</span>.fromMnemonic(mnemonic, mainnetKmParams, <span class="hljs-type">None</span>, <span class="hljs-type">Instant</span>.now)
<span class="hljs-comment">// mainnetKeyManager: BIP39KeyManager = org.bitcoins.keymanager.bip39.BIP39KeyManager@2bd3a7ef</span>
<span class="hljs-comment">// mainnetKeyManager: BIP39KeyManager = org.bitcoins.keymanager.bip39.BIP39KeyManager@1007f986</span>
<span class="hljs-keyword">val</span> mainnetXpub = mainnetKeyManager.getRootXPub
<span class="hljs-comment">// mainnetXpub: ExtPublicKey = zpub6jftahH18ngZybpks7A6ewy7UQ5FXD2i8YLWzkznU7fvnikPgPkzBgoJk4zQt1W3tH2g9VvB356qHftjDZc7QnzEyPkpKN9bSSQYuV6Y3yN</span>
<span class="hljs-comment">// mainnetXpub: ExtPublicKey = zpub6jftahH18ngZxPQdjd5tiJmhVqHpTNatYShnPcC1UH9BS9VtxoLzTdz1dFeEFPRUtnR3LPx6iUSaimpQQBbWhfQfzpgTfpBSaBDSURYBEmF</span>
println(mainnetXpub)
<span class="hljs-comment">// zpub6jftahH18ngZybpks7A6ewy7UQ5FXD2i8YLWzkznU7fvnikPgPkzBgoJk4zQt1W3tH2g9VvB356qHftjDZc7QnzEyPkpKN9bSSQYuV6Y3yN</span>
<span class="hljs-comment">// zpub6jftahH18ngZxPQdjd5tiJmhVqHpTNatYShnPcC1UH9BS9VtxoLzTdz1dFeEFPRUtnR3LPx6iUSaimpQQBbWhfQfzpgTfpBSaBDSURYBEmF</span>
</code></pre>
<p>Which gives us something that looks like this</p>
<p><code>zpub6jftahH18ngZw98KGjRo5XcxeKTQ2eztsvskb1dC9XF5TLimQquTs6Ry7nBBA425D9joXmfgJJCexmJ1u2SELJZJfRi95gcnXadLpZzYb5c</code></p>

22
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View file

@ -77,14 +77,14 @@
<span class="hljs-comment">//get 256 bits of random entropy</span>
<span class="hljs-keyword">val</span> entropy = <span class="hljs-type">MnemonicCode</span>.getEntropy256Bits
<span class="hljs-comment">// entropy: scodec.bits.BitVector = BitVector(256 bits, 0x40e897643e1388cd742a1102f172541202c389d6aa3fb105366eda76e9441151)</span>
<span class="hljs-comment">// entropy: scodec.bits.BitVector = BitVector(256 bits, 0xe958285d93c6b57181a785ad179d6ec4525732c5de08e570b70c3a32288e7a79)</span>
<span class="hljs-keyword">val</span> mnemonic = <span class="hljs-type">MnemonicCode</span>.fromEntropy(entropy)
<span class="hljs-comment">// mnemonic: MnemonicCode = Masked(MnemonicCodeImpl)</span>
<span class="hljs-comment">//you can print that mnemonic seed with this</span>
println(mnemonic.words)
<span class="hljs-comment">// Vector(domain, dwarf, suit, label, decade, grit, spawn, drama, actual, merit, never, catch, club, shaft, follow, elevator, rain, claim, option, reject, hub, pear, earn, clump)</span>
<span class="hljs-comment">// Vector(true, scout, blast, chest, hero, rhythm, alley, vague, public, rude, forum, master, century, offer, blast, scissors, tornado, mad, seek, inner, card, elbow, try, decade)</span>
</code></pre>
<p>Now that we have a <code>MnemonicCode</code> that was securely generated, we need to now create <code>KeyManagerParams</code> which tells us how to generate
generate specific kinds of addresses for wallets.</p>
@ -99,7 +99,7 @@ generate specific kinds of addresses for wallets.</p>
<pre><code class="hljs css language-scala"><span class="hljs-comment">//this will create a temp directory with the prefix 'key-manager-example` that will</span>
<span class="hljs-comment">//have a file in it called "encrypted-bitcoin-s-seed.json"</span>
<span class="hljs-keyword">val</span> seedPath = <span class="hljs-type">Files</span>.createTempDirectory(<span class="hljs-string">"key-manager-example"</span>).resolve(<span class="hljs-type">WalletStorage</span>.<span class="hljs-type">ENCRYPTED_SEED_FILE_NAME</span>)
<span class="hljs-comment">// seedPath: Path = /tmp/key-manager-example1518671382314964259/encrypted-bitcoin-s-seed.json</span>
<span class="hljs-comment">// seedPath: Path = /tmp/key-manager-example7435008708614440125/encrypted-bitcoin-s-seed.json</span>
<span class="hljs-comment">//let's create a native segwit key manager</span>
<span class="hljs-keyword">val</span> purpose = <span class="hljs-type">HDPurposes</span>.<span class="hljs-type">SegWit</span>
@ -110,19 +110,19 @@ generate specific kinds of addresses for wallets.</p>
<span class="hljs-comment">// network: RegTest.type = RegTest</span>
<span class="hljs-keyword">val</span> kmParams = <span class="hljs-type">KeyManagerParams</span>(seedPath, purpose, network)
<span class="hljs-comment">// kmParams: KeyManagerParams = KeyManagerParams(/tmp/key-manager-example1518671382314964259/encrypted-bitcoin-s-seed.json,m/84',RegTest)</span>
<span class="hljs-comment">// kmParams: KeyManagerParams = KeyManagerParams(/tmp/key-manager-example7435008708614440125/encrypted-bitcoin-s-seed.json,m/84',RegTest)</span>
<span class="hljs-keyword">val</span> aesPasswordOpt = <span class="hljs-type">Some</span>(<span class="hljs-type">AesPassword</span>.fromString(<span class="hljs-string">"password"</span>))
<span class="hljs-comment">// aesPasswordOpt: Some[AesPassword] = Some(Masked(AesPassword))</span>
<span class="hljs-keyword">val</span> km = <span class="hljs-type">BIP39KeyManager</span>.initializeWithMnemonic(aesPasswordOpt, mnemonic, <span class="hljs-type">None</span>, kmParams)
<span class="hljs-comment">// km: Either[KeyManagerInitializeError, BIP39KeyManager] = Right(org.bitcoins.keymanager.bip39.BIP39KeyManager@717055f0)</span>
<span class="hljs-comment">// km: Either[KeyManagerInitializeError, BIP39KeyManager] = Right(org.bitcoins.keymanager.bip39.BIP39KeyManager@3c083116)</span>
<span class="hljs-keyword">val</span> rootXPub = km.right.get.getRootXPub
<span class="hljs-comment">// rootXPub: ExtPublicKey = vpub5SLqN2bLY4WeaR4HXg1bpbb6nXVTkj4iU6FdsBREx6AQaKVUfm6jhSAkfFA4tNtNFiZT9bXwCRgdkXSULmx4DrFqW2y7yiseMY9yMBLMLeX</span>
<span class="hljs-comment">// rootXPub: ExtPublicKey = vpub5SLqN2bLY4WeZCeAQBwPsxPgoxi2gtctszcuG2cTxFdfDkEyxAgjyPMTYRotFkooGDwpLVZrsq2PBdN9XPwTWigGXTtmLAuVVGxrv7dnz5E</span>
println(rootXPub)
<span class="hljs-comment">// vpub5SLqN2bLY4WeaR4HXg1bpbb6nXVTkj4iU6FdsBREx6AQaKVUfm6jhSAkfFA4tNtNFiZT9bXwCRgdkXSULmx4DrFqW2y7yiseMY9yMBLMLeX</span>
<span class="hljs-comment">// vpub5SLqN2bLY4WeZCeAQBwPsxPgoxi2gtctszcuG2cTxFdfDkEyxAgjyPMTYRotFkooGDwpLVZrsq2PBdN9XPwTWigGXTtmLAuVVGxrv7dnz5E</span>
</code></pre>
<p>Which should print something that looks like this</p>
<p><code>vpub5SLqN2bLY4WeXxMqwJHJFBEwxSscGB2uDUnsTS3edVjZEwTrQDFDNqoR2xLqARQPabGaXsHSTenTRcqm2EnB9MpuC4vSk3LqSgNmGGZtuq7</code></p>
@ -131,17 +131,17 @@ println(rootXPub)
again after initializing it once. You can use the same <code>mnemonic</code> for different networks, which you control <code>KeyManagerParams</code>.</p>
<pre><code class="hljs css language-scala"><span class="hljs-comment">//let's create a nested segwit key manager for mainnet</span>
<span class="hljs-keyword">val</span> mainnetKmParams = <span class="hljs-type">KeyManagerParams</span>(seedPath, <span class="hljs-type">HDPurposes</span>.<span class="hljs-type">SegWit</span>, <span class="hljs-type">MainNet</span>)
<span class="hljs-comment">// mainnetKmParams: KeyManagerParams = KeyManagerParams(/tmp/key-manager-example1518671382314964259/encrypted-bitcoin-s-seed.json,m/84',MainNet)</span>
<span class="hljs-comment">// mainnetKmParams: KeyManagerParams = KeyManagerParams(/tmp/key-manager-example7435008708614440125/encrypted-bitcoin-s-seed.json,m/84',MainNet)</span>
<span class="hljs-comment">//we do not need to all `initializeWithMnemonic()` again as we have saved the seed to dis</span>
<span class="hljs-keyword">val</span> mainnetKeyManager = <span class="hljs-type">BIP39KeyManager</span>.fromMnemonic(mnemonic, mainnetKmParams, <span class="hljs-type">None</span>, <span class="hljs-type">Instant</span>.now)
<span class="hljs-comment">// mainnetKeyManager: BIP39KeyManager = org.bitcoins.keymanager.bip39.BIP39KeyManager@2bd3a7ef</span>
<span class="hljs-comment">// mainnetKeyManager: BIP39KeyManager = org.bitcoins.keymanager.bip39.BIP39KeyManager@1007f986</span>
<span class="hljs-keyword">val</span> mainnetXpub = mainnetKeyManager.getRootXPub
<span class="hljs-comment">// mainnetXpub: ExtPublicKey = zpub6jftahH18ngZybpks7A6ewy7UQ5FXD2i8YLWzkznU7fvnikPgPkzBgoJk4zQt1W3tH2g9VvB356qHftjDZc7QnzEyPkpKN9bSSQYuV6Y3yN</span>
<span class="hljs-comment">// mainnetXpub: ExtPublicKey = zpub6jftahH18ngZxPQdjd5tiJmhVqHpTNatYShnPcC1UH9BS9VtxoLzTdz1dFeEFPRUtnR3LPx6iUSaimpQQBbWhfQfzpgTfpBSaBDSURYBEmF</span>
println(mainnetXpub)
<span class="hljs-comment">// zpub6jftahH18ngZybpks7A6ewy7UQ5FXD2i8YLWzkznU7fvnikPgPkzBgoJk4zQt1W3tH2g9VvB356qHftjDZc7QnzEyPkpKN9bSSQYuV6Y3yN</span>
<span class="hljs-comment">// zpub6jftahH18ngZxPQdjd5tiJmhVqHpTNatYShnPcC1UH9BS9VtxoLzTdz1dFeEFPRUtnR3LPx6iUSaimpQQBbWhfQfzpgTfpBSaBDSURYBEmF</span>
</code></pre>
<p>Which gives us something that looks like this</p>
<p><code>zpub6jftahH18ngZw98KGjRo5XcxeKTQ2eztsvskb1dC9XF5TLimQquTs6Ry7nBBA425D9joXmfgJJCexmJ1u2SELJZJfRi95gcnXadLpZzYb5c</code></p>

4
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View file

@ -115,13 +115,13 @@ println(<span class="hljs-string">s"Verified with NativeSecp256k1 again=<span cl
<span class="hljs-comment">// privKey: ECPrivateKey = Masked(ECPrivateKey)</span>
<span class="hljs-comment">// calls bouncy castle indirectly via CryptoContext</span>
<span class="hljs-keyword">val</span> publicKey = privKey.publicKey
<span class="hljs-comment">// publicKey: ECPublicKey = ECPublicKey(02535157e7396dc7cd6181a8b7e0df2e7b38b9ce84a3d4f7b7cdf3b6cc16cc7ef9)</span>
<span class="hljs-comment">// publicKey: ECPublicKey = ECPublicKey(03f9a59acecf85dadee0b8894790a83af30b693d0780244d6cda4709b0f09d5809)</span>
<span class="hljs-keyword">val</span> dataToSign = <span class="hljs-type">DoubleSha256Digest</span>.empty
<span class="hljs-comment">// dataToSign: DoubleSha256Digest = DoubleSha256Digest(0000000000000000000000000000000000000000000000000000000000000000)</span>
<span class="hljs-comment">// calls bouncy castle indirectly via CryptoContext</span>
<span class="hljs-keyword">val</span> signature = privKey.sign(dataToSign.bytes)
<span class="hljs-comment">// signature: ECDigitalSignature = ECDigitalSignature(304402207bfdb1418a2a311be2a1b8ac289276f382c6bdd1cfb1b5fa488a3f28ac9e489c02203605e774b145544dbbb68e969aa1b0a9f84ed026b530a4a68eaab2072b192325)</span>
<span class="hljs-comment">// signature: ECDigitalSignature = ECDigitalSignature(3045022100a858f95757b38b2191a24b079381fc40819f9fed6a3510f9edb32d6dee1ea5a502202b99a7544236ed9e82f89fb4ec7acb176ec65886761cc901dd11a6b1c7075b8a)</span>
<span class="hljs-comment">// calls bouncy castle indirectly via CryptoContext</span>
<span class="hljs-keyword">val</span> verified = publicKey.verify(dataToSign.bytes, signature)

4
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View file

@ -115,13 +115,13 @@ println(<span class="hljs-string">s"Verified with NativeSecp256k1 again=<span cl
<span class="hljs-comment">// privKey: ECPrivateKey = Masked(ECPrivateKey)</span>
<span class="hljs-comment">// calls bouncy castle indirectly via CryptoContext</span>
<span class="hljs-keyword">val</span> publicKey = privKey.publicKey
<span class="hljs-comment">// publicKey: ECPublicKey = ECPublicKey(02535157e7396dc7cd6181a8b7e0df2e7b38b9ce84a3d4f7b7cdf3b6cc16cc7ef9)</span>
<span class="hljs-comment">// publicKey: ECPublicKey = ECPublicKey(03f9a59acecf85dadee0b8894790a83af30b693d0780244d6cda4709b0f09d5809)</span>
<span class="hljs-keyword">val</span> dataToSign = <span class="hljs-type">DoubleSha256Digest</span>.empty
<span class="hljs-comment">// dataToSign: DoubleSha256Digest = DoubleSha256Digest(0000000000000000000000000000000000000000000000000000000000000000)</span>
<span class="hljs-comment">// calls bouncy castle indirectly via CryptoContext</span>
<span class="hljs-keyword">val</span> signature = privKey.sign(dataToSign.bytes)
<span class="hljs-comment">// signature: ECDigitalSignature = ECDigitalSignature(304402207bfdb1418a2a311be2a1b8ac289276f382c6bdd1cfb1b5fa488a3f28ac9e489c02203605e774b145544dbbb68e969aa1b0a9f84ed026b530a4a68eaab2072b192325)</span>
<span class="hljs-comment">// signature: ECDigitalSignature = ECDigitalSignature(3045022100a858f95757b38b2191a24b079381fc40819f9fed6a3510f9edb32d6dee1ea5a502202b99a7544236ed9e82f89fb4ec7acb176ec65886761cc901dd11a6b1c7075b8a)</span>
<span class="hljs-comment">// calls bouncy castle indirectly via CryptoContext</span>
<span class="hljs-keyword">val</span> verified = publicKey.verify(dataToSign.bytes, signature)