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10
docs/next/core/addresses.html
View file

@ -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(ECPrivateKeyImpl)</span>
<span class="hljs-keyword">val</span> pubkey = privkey.publicKey
<span class="hljs-comment">// pubkey: org.bitcoins.crypto.ECPublicKey = ECPublicKey(02d8391c69cf88a0253a8f6952683f7750e1357b8d891dcd2020d3924bc19b4df0)</span>
<span class="hljs-comment">// pubkey: org.bitcoins.crypto.ECPublicKey = ECPublicKey(025a33560692d9eae01a6e1e327f0ba513da4cebb95946e0354f8999cc7896f221)</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 = tb1qy9fkkutnmnl9m55af879sejlz38ss00myjfnqu</span>
<span class="hljs-comment">// segwitAddress: Bech32Address = tb1ql8399dcgphl6xg3q8hksyw9gl6z6389f2rw8ec</span>
println(segwitAddress.toString)
<span class="hljs-comment">// tb1qy9fkkutnmnl9m55af879sejlz38ss00myjfnqu</span>
<span class="hljs-comment">// tb1ql8399dcgphl6xg3q8hksyw9gl6z6389f2rw8ec</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&#x27;re reusing the same private/public key pair</span>
<span class="hljs-comment">// from before. don&#x27;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 = miZAXVBoXH5L4XRPAYQfv4WJUfor6nvQvH</span>
<span class="hljs-comment">// legacyAddress: P2PKHAddress = n4JDg2PoRVm317eTnivf1btxPsEVrdEYhF</span>
println(legacyAddress.toString)
<span class="hljs-comment">// miZAXVBoXH5L4XRPAYQfv4WJUfor6nvQvH</span>
<span class="hljs-comment">// n4JDg2PoRVm317eTnivf1btxPsEVrdEYhF</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 © 2020 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) {

10
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(ECPrivateKeyImpl)</span>
<span class="hljs-keyword">val</span> pubkey = privkey.publicKey
<span class="hljs-comment">// pubkey: org.bitcoins.crypto.ECPublicKey = ECPublicKey(02d8391c69cf88a0253a8f6952683f7750e1357b8d891dcd2020d3924bc19b4df0)</span>
<span class="hljs-comment">// pubkey: org.bitcoins.crypto.ECPublicKey = ECPublicKey(025a33560692d9eae01a6e1e327f0ba513da4cebb95946e0354f8999cc7896f221)</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 = tb1qy9fkkutnmnl9m55af879sejlz38ss00myjfnqu</span>
<span class="hljs-comment">// segwitAddress: Bech32Address = tb1ql8399dcgphl6xg3q8hksyw9gl6z6389f2rw8ec</span>
println(segwitAddress.toString)
<span class="hljs-comment">// tb1qy9fkkutnmnl9m55af879sejlz38ss00myjfnqu</span>
<span class="hljs-comment">// tb1ql8399dcgphl6xg3q8hksyw9gl6z6389f2rw8ec</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&#x27;re reusing the same private/public key pair</span>
<span class="hljs-comment">// from before. don&#x27;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 = miZAXVBoXH5L4XRPAYQfv4WJUfor6nvQvH</span>
<span class="hljs-comment">// legacyAddress: P2PKHAddress = n4JDg2PoRVm317eTnivf1btxPsEVrdEYhF</span>
println(legacyAddress.toString)
<span class="hljs-comment">// miZAXVBoXH5L4XRPAYQfv4WJUfor6nvQvH</span>
<span class="hljs-comment">// n4JDg2PoRVm317eTnivf1btxPsEVrdEYhF</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 © 2020 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) {

12
docs/next/core/hd-keys.html
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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, 0x7aadd5a15ddb7eb493ecc2d957abf13e6bccc1a08cca9052c3d1dd6311cf790e)</span>
<span class="hljs-comment">// entropy: BitVector = BitVector(256 bits, 0xdc26f519523e63b7515fc41e81be18421a8b5c8d64165d9b0bd0f049603429d0)</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(kingdom, huge, hair, roof, retire, fog, exile, obscure, sun, run, wisdom, lamp, rubber, general, lion, off, motion, noodle, virtual, river, country, tray, tomorrow, scrap) // the phrase the user should write down</span>
<span class="hljs-comment">// res0: Vector[String] = Vector(switch, dash, edge, piece, tower, sweet, earth, weasel, burden, assume, maid, loud, post, purity, culture, lizard, frown, success, vintage, they, noodle, borrow, point, bless) // 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 = zpub6jftahH18ngZyMubLxKSpG1irG4WXXkLdnka8qsDR2S8EH8emejij65mEfo2RYVzTie8xNBjabXx5avTvLYQxAe28r7sN5LQU5Bym8kUpt5</span>
<span class="hljs-comment">// xpub: ExtPublicKey = zpub6jftahH18ngZxXTmjLrTsRQhMkrZCkY1uAsZEkt1Lpi613bQaY8er6QPd8LmRCwzyCEC5DgzrNR4D7YgUqxT9iWUty4QoyMkHyfKqegrRby</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 = zpub6qNRpa1UCPqYkw33miWemvdikA1X1sNxZdESdXyy97gx57f46BY5Q2RdeQ7QKsSRM6588cx7kuU5DkJ5Z4qHZLNBG9iicbc9EWzmrdMd4bs</span>
<span class="hljs-comment">// accountXpub: ExtPublicKey = zpub6rEHRCfcGPQtipPByzzUyGEP3FfJwE7L8FdL8ZySALFKcRVy6uhQ4HuHiMc8mBc8YTAzqnxqBbFEFoGfC7Ax3irY5mtq4GEVfbMGpCcuUkg</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 = tb1qnzpnsk4z9d770d0vqdm3t8gmasme4c6eae50wu</span>
<span class="hljs-comment">// firstAccountAddress: Bech32Address = tb1qncl5emv0nx8mg9m6m0ehrhhhcc5ket7vzdt7e8</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 = tb1qnzpnsk4z9d770d0vqdm3t8gmasme4c6eae50wu</span>
<span class="hljs-comment">// res2: String = tb1qncl5emv0nx8mg9m6m0ehrhhhcc5ket7vzdt7e8</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>

12
docs/next/core/hd-keys/index.html
View file

@ -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, 0x7aadd5a15ddb7eb493ecc2d957abf13e6bccc1a08cca9052c3d1dd6311cf790e)</span>
<span class="hljs-comment">// entropy: BitVector = BitVector(256 bits, 0xdc26f519523e63b7515fc41e81be18421a8b5c8d64165d9b0bd0f049603429d0)</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(kingdom, huge, hair, roof, retire, fog, exile, obscure, sun, run, wisdom, lamp, rubber, general, lion, off, motion, noodle, virtual, river, country, tray, tomorrow, scrap) // the phrase the user should write down</span>
<span class="hljs-comment">// res0: Vector[String] = Vector(switch, dash, edge, piece, tower, sweet, earth, weasel, burden, assume, maid, loud, post, purity, culture, lizard, frown, success, vintage, they, noodle, borrow, point, bless) // 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 = zpub6jftahH18ngZyMubLxKSpG1irG4WXXkLdnka8qsDR2S8EH8emejij65mEfo2RYVzTie8xNBjabXx5avTvLYQxAe28r7sN5LQU5Bym8kUpt5</span>
<span class="hljs-comment">// xpub: ExtPublicKey = zpub6jftahH18ngZxXTmjLrTsRQhMkrZCkY1uAsZEkt1Lpi613bQaY8er6QPd8LmRCwzyCEC5DgzrNR4D7YgUqxT9iWUty4QoyMkHyfKqegrRby</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 = zpub6qNRpa1UCPqYkw33miWemvdikA1X1sNxZdESdXyy97gx57f46BY5Q2RdeQ7QKsSRM6588cx7kuU5DkJ5Z4qHZLNBG9iicbc9EWzmrdMd4bs</span>
<span class="hljs-comment">// accountXpub: ExtPublicKey = zpub6rEHRCfcGPQtipPByzzUyGEP3FfJwE7L8FdL8ZySALFKcRVy6uhQ4HuHiMc8mBc8YTAzqnxqBbFEFoGfC7Ax3irY5mtq4GEVfbMGpCcuUkg</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 = tb1qnzpnsk4z9d770d0vqdm3t8gmasme4c6eae50wu</span>
<span class="hljs-comment">// firstAccountAddress: Bech32Address = tb1qncl5emv0nx8mg9m6m0ehrhhhcc5ket7vzdt7e8</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 = tb1qnzpnsk4z9d770d0vqdm3t8gmasme4c6eae50wu</span>
<span class="hljs-comment">// res2: String = tb1qncl5emv0nx8mg9m6m0ehrhhhcc5ket7vzdt7e8</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>

36
docs/next/core/txbuilder.html
View file

@ -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$$anon$3@44191e74[Running, parallelism = 2, size = 2, active = 0, running = 0, steals = 33, tasks = 0, submissions = 0]</span>
<span class="hljs-comment">// ec: ExecutionContext = scala.concurrent.impl.ExecutionContextImpl$$anon$3@7ea162b3[Running, parallelism = 2, size = 2, active = 0, running = 0, steals = 33, 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(ECPrivateKeyImpl)</span>
<span class="hljs-keyword">val</span> pubKey = privKey.publicKey
<span class="hljs-comment">// pubKey: ECPublicKey = ECPublicKey(037800b7257db77b3677adecac46e7c224e219d83653d476b39b275b79a28ae943)</span>
<span class="hljs-comment">// pubKey: ECPublicKey = ECPublicKey(03a197f9afeada5ab398d6e0a98bd383fe285f4292522c5bd7ad4d237e4b877744)</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(c97750a346dd6386487b668259a1afc45ef84ddf)</span>
<span class="hljs-comment">// creditingSpk: P2PKHScriptPubKey = pkh(4f25350159c6b28ea68a19a756f2ce318302f9e1)</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(c97750a346dd6386487b668259a1afc45ef84ddf))</span>
<span class="hljs-comment">// utxo: TransactionOutput = TransactionOutput(10000 sats,pkh(4f25350159c6b28ea68a19a756f2ce318302f9e1))</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(29eb88a513002fbc210fc045819a8f18a9a1252c)</span>
<span class="hljs-comment">// destinationSPK: P2PKHScriptPubKey = pkh(1fc961516022ae0a4ac3a4f72fb8f6807f2508f6)</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(29eb88a513002fbc210fc045819a8f18a9a1252c)))</span>
<span class="hljs-comment">// destinations: Vector[TransactionOutput] = Vector(TransactionOutput(5000 sats,pkh(1fc961516022ae0a4ac3a4f72fb8f6807f2508f6)))</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(c97750a346dd6386487b668259a1afc45ef84ddf))),UInt32Impl(0))</span>
<span class="hljs-comment">// creditingTx: BaseTransaction = BaseTransaction(Int32Impl(1),Vector(),Vector(TransactionOutput(10000 sats,pkh(4f25350159c6b28ea68a19a756f2ce318302f9e1))),UInt32Impl(0))</span>
<span class="hljs-comment">// this is the information we need from the crediting TX</span>
<span class="hljs-comment">// to properly &quot;link&quot; 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(32a2630a9ed8f0f97627e995092c4acb5360f3a96b9c15f88d00b2569314945f:0)</span>
<span class="hljs-comment">// outPoint: TransactionOutPoint = TransactionOutPoint(ad48067c08ff061ed440ba803e9405d91fabeee65d123f052aaf4e3025a40455:0)</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(32a2630a9ed8f0f97627e995092c4acb5360f3a96b9c15f88d00b2569314945f:0),EmptyScriptSignature,UInt32Impl(0))</span>
<span class="hljs-comment">// input: TransactionInput = TransactionInputImpl(TransactionOutPoint(ad48067c08ff061ed440ba803e9405d91fabeee65d123f052aaf4e3025a40455:0),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(32a2630a9ed8f0f97627e995092c4acb5360f3a96b9c15f88d00b2569314945f:0),EmptyScriptSignature,UInt32Impl(0))),Vector(TransactionOutput(5000 sats,pkh(29eb88a513002fbc210fc045819a8f18a9a1252c))),UInt32Impl(0))</span>
<span class="hljs-comment">// builderResult: RawTxBuilderResult = RawTxBuilderResult(Int32Impl(2),Vector(TransactionInputImpl(TransactionOutPoint(ad48067c08ff061ed440ba803e9405d91fabeee65d123f052aaf4e3025a40455:0),EmptyScriptSignature,UInt32Impl(0))),Vector(TransactionOutput(5000 sats,pkh(1fc961516022ae0a4ac3a4f72fb8f6807f2508f6))),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(32a2630a9ed8f0f97627e995092c4acb5360f3a96b9c15f88d00b2569314945f:0),10000 sats,ECPublicKey(037800b7257db77b3677adecac46e7c224e219d83653d476b39b275b79a28ae943))</span>
<span class="hljs-comment">// inputInfo: P2PKHInputInfo = P2PKHInputInfo(TransactionOutPoint(ad48067c08ff061ed440ba803e9405d91fabeee65d123f052aaf4e3025a40455:0),10000 sats,ECPublicKey(03a197f9afeada5ab398d6e0a98bd383fe285f4292522c5bd7ad4d237e4b877744))</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(ECPrivateKeyImpl)</span>
<span class="hljs-keyword">val</span> changeSPK = <span class="hljs-type">P2PKHScriptPubKey</span>(pubKey = changePrivKey.publicKey)
<span class="hljs-comment">// changeSPK: P2PKHScriptPubKey = pkh(ea16d21958b51f0c4a4eff94f78ada10308d4d88)</span>
<span class="hljs-comment">// changeSPK: P2PKHScriptPubKey = pkh(163bd73c66636a3069b1d043c4fd8a618d28985f)</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(32a2630a9ed8f0f97627e995092c4acb5360f3a96b9c15f88d00b2569314945f:0),10000 sats,ECPublicKey(037800b7257db77b3677adecac46e7c224e219d83653d476b39b275b79a28ae943))),1 sats/byte,pkh(ea16d21958b51f0c4a4eff94f78ada10308d4d88))</span>
<span class="hljs-comment">// finalizer: StandardNonInteractiveFinalizer = StandardNonInteractiveFinalizer(Vector(P2PKHInputInfo(TransactionOutPoint(ad48067c08ff061ed440ba803e9405d91fabeee65d123f052aaf4e3025a40455:0),10000 sats,ECPublicKey(03a197f9afeada5ab398d6e0a98bd383fe285f4292522c5bd7ad4d237e4b877744))),1 sats/byte,pkh(163bd73c66636a3069b1d043c4fd8a618d28985f))</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> unsignedTxF: <span class="hljs-type">Future</span>[<span class="hljs-type">Transaction</span>] = finalizer.buildTx(builderResult)
<span class="hljs-comment">// unsignedTxF: Future[Transaction] = Future(Success(BaseTransaction(Int32Impl(2),Vector(TransactionInputImpl(TransactionOutPoint(32a2630a9ed8f0f97627e995092c4acb5360f3a96b9c15f88d00b2569314945f:0),EmptyScriptSignature,UInt32Impl(0))),Vector(TransactionOutput(5000 sats,pkh(29eb88a513002fbc210fc045819a8f18a9a1252c)), TransactionOutput(4775 sats,pkh(ea16d21958b51f0c4a4eff94f78ada10308d4d88))),UInt32Impl(0))))</span>
<span class="hljs-comment">// unsignedTxF: Future[Transaction] = Future(Success(BaseTransaction(Int32Impl(2),Vector(TransactionInputImpl(TransactionOutPoint(ad48067c08ff061ed440ba803e9405d91fabeee65d123f052aaf4e3025a40455:0),EmptyScriptSignature,UInt32Impl(0))),Vector(TransactionOutput(5000 sats,pkh(1fc961516022ae0a4ac3a4f72fb8f6807f2508f6)), TransactionOutput(4775 sats,pkh(163bd73c66636a3069b1d043c4fd8a618d28985f))),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(32a2630a9ed8f0f97627e995092c4acb5360f3a96b9c15f88d00b2569314945f:0),10000 sats,ECPublicKey(037800b7257db77b3677adecac46e7c224e219d83653d476b39b275b79a28ae943)),BaseTransaction(Int32Impl(1),Vector(),Vector(TransactionOutput(10000 sats,pkh(c97750a346dd6386487b668259a1afc45ef84ddf))),UInt32Impl(0)),Vector(Masked(ECPrivateKeyImpl)),SIGHASH_ALL(Int32Impl(1)))</span>
<span class="hljs-comment">// utxoInfo: ScriptSignatureParams[P2PKHInputInfo] = ScriptSignatureParams(P2PKHInputInfo(TransactionOutPoint(ad48067c08ff061ed440ba803e9405d91fabeee65d123f052aaf4e3025a40455:0),10000 sats,ECPublicKey(03a197f9afeada5ab398d6e0a98bd383fe285f4292522c5bd7ad4d237e4b877744)),BaseTransaction(Int32Impl(1),Vector(),Vector(TransactionOutput(10000 sats,pkh(4f25350159c6b28ea68a19a756f2ce318302f9e1))),UInt32Impl(0)),Vector(Masked(ECPrivateKeyImpl)),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(32a2630a9ed8f0f97627e995092c4acb5360f3a96b9c15f88d00b2569314945f:0),10000 sats,ECPublicKey(037800b7257db77b3677adecac46e7c224e219d83653d476b39b275b79a28ae943)),BaseTransaction(Int32Impl(1),Vector(),Vector(TransactionOutput(10000 sats,pkh(c97750a346dd6386487b668259a1afc45ef84ddf))),UInt32Impl(0)),Vector(Masked(ECPrivateKeyImpl)),SIGHASH_ALL(Int32Impl(1))))</span>
<span class="hljs-comment">// utxoInfos: Vector[ScriptSignatureParams[InputInfo]] = Vector(ScriptSignatureParams(P2PKHInputInfo(TransactionOutPoint(ad48067c08ff061ed440ba803e9405d91fabeee65d123f052aaf4e3025a40455:0),10000 sats,ECPublicKey(03a197f9afeada5ab398d6e0a98bd383fe285f4292522c5bd7ad4d237e4b877744)),BaseTransaction(Int32Impl(1),Vector(),Vector(TransactionOutput(10000 sats,pkh(4f25350159c6b28ea68a19a756f2ce318302f9e1))),UInt32Impl(0)),Vector(Masked(ECPrivateKeyImpl)),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 &#x27;sign&#x27; method is going produce a validly signed transaction</span>
@ -201,7 +201,7 @@ builder += input
}
<span class="hljs-type">Await</span>.result(signedTxF, <span class="hljs-number">30.</span>seconds)
}
<span class="hljs-comment">// signedTx: Transaction = BaseTransaction(Int32Impl(2),Vector(TransactionInputImpl(TransactionOutPoint(32a2630a9ed8f0f97627e995092c4acb5360f3a96b9c15f88d00b2569314945f:0),P2PKHScriptSignature(ECPublicKey(037800b7257db77b3677adecac46e7c224e219d83653d476b39b275b79a28ae943), ECDigitalSignature(304402203a7e3299d122a1cbd191734dd7717e923865a2f8d0c2c515996607b86132b786022037c802ebe9e29b6b9b6b4555fdb03770bdd12797f70cdc8020227bc68d7cf61701)),UInt32Impl(0))),Vector(TransactionOutput(5000 sats,pkh(29eb88a513002fbc210fc045819a8f18a9a1252c)), TransactionOutput(4775 sats,pkh(ea16d21958b51f0c4a4eff94f78ada10308d4d88))),UInt32Impl(0))</span>
<span class="hljs-comment">// signedTx: Transaction = BaseTransaction(Int32Impl(2),Vector(TransactionInputImpl(TransactionOutPoint(ad48067c08ff061ed440ba803e9405d91fabeee65d123f052aaf4e3025a40455:0),P2PKHScriptSignature(ECPublicKey(03a197f9afeada5ab398d6e0a98bd383fe285f4292522c5bd7ad4d237e4b877744), ECDigitalSignature(304402204fd2188320de60d8d3ed253dc76f7be443b5f7979d0db241ca05d0a0aba475be02203cb22c05dd0dce2c63b640c41758c3e485a9ad3974bf36bfc392530ec8c7018e01)),UInt32Impl(0))),Vector(TransactionOutput(5000 sats,pkh(1fc961516022ae0a4ac3a4f72fb8f6807f2508f6)), TransactionOutput(4775 sats,pkh(163bd73c66636a3069b1d043c4fd8a618d28985f))),UInt32Impl(0))</span>
</code></pre>
<pre><code class="hljs css language-scala">signedTx.inputs.length
<span class="hljs-comment">// res2: Int = 1</span>
@ -211,7 +211,7 @@ 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 = 02000000015f94149356b2008df8159c6ba9f36053cb4a2c0995e92776f9f0d89e0a63a232000000006a47304402203a7e3299d122a1cbd191734dd7717e923865a2f8d0c2c515996607b86132b786022037c802ebe9e29b6b9b6b4555fdb03770bdd12797f70cdc8020227bc68d7cf6170121037800b7257db77b3677adecac46e7c224e219d83653d476b39b275b79a28ae943000000000288130000000000001976a91429eb88a513002fbc210fc045819a8f18a9a1252c88aca7120000000000001976a914ea16d21958b51f0c4a4eff94f78ada10308d4d8888ac00000000</span>
<span class="hljs-comment">// res4: String = 02000000015504a425304eaf2a053f125de6eeab1fd905943e80ba40d41e06ff087c0648ad000000006a47304402204fd2188320de60d8d3ed253dc76f7be443b5f7979d0db241ca05d0a0aba475be02203cb22c05dd0dce2c63b640c41758c3e485a9ad3974bf36bfc392530ec8c7018e012103a197f9afeada5ab398d6e0a98bd383fe285f4292522c5bd7ad4d237e4b877744000000000288130000000000001976a9141fc961516022ae0a4ac3a4f72fb8f6807f2508f688aca7120000000000001976a914163bd73c66636a3069b1d043c4fd8a618d28985f88ac00000000</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$$anon$3@44191e74[Running, parallelism = 2, size = 2, active = 0, running = 0, steals = 33, tasks = 0, submissions = 0]</span>
<span class="hljs-comment">// ec: ExecutionContext = scala.concurrent.impl.ExecutionContextImpl$$anon$3@7ea162b3[Running, parallelism = 2, size = 2, active = 0, running = 0, steals = 33, 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(ECPrivateKeyImpl)</span>
<span class="hljs-keyword">val</span> pubKey = privKey.publicKey
<span class="hljs-comment">// pubKey: ECPublicKey = ECPublicKey(037800b7257db77b3677adecac46e7c224e219d83653d476b39b275b79a28ae943)</span>
<span class="hljs-comment">// pubKey: ECPublicKey = ECPublicKey(03a197f9afeada5ab398d6e0a98bd383fe285f4292522c5bd7ad4d237e4b877744)</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(c97750a346dd6386487b668259a1afc45ef84ddf)</span>
<span class="hljs-comment">// creditingSpk: P2PKHScriptPubKey = pkh(4f25350159c6b28ea68a19a756f2ce318302f9e1)</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(c97750a346dd6386487b668259a1afc45ef84ddf))</span>
<span class="hljs-comment">// utxo: TransactionOutput = TransactionOutput(10000 sats,pkh(4f25350159c6b28ea68a19a756f2ce318302f9e1))</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(29eb88a513002fbc210fc045819a8f18a9a1252c)</span>
<span class="hljs-comment">// destinationSPK: P2PKHScriptPubKey = pkh(1fc961516022ae0a4ac3a4f72fb8f6807f2508f6)</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(29eb88a513002fbc210fc045819a8f18a9a1252c)))</span>
<span class="hljs-comment">// destinations: Vector[TransactionOutput] = Vector(TransactionOutput(5000 sats,pkh(1fc961516022ae0a4ac3a4f72fb8f6807f2508f6)))</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(c97750a346dd6386487b668259a1afc45ef84ddf))),UInt32Impl(0))</span>
<span class="hljs-comment">// creditingTx: BaseTransaction = BaseTransaction(Int32Impl(1),Vector(),Vector(TransactionOutput(10000 sats,pkh(4f25350159c6b28ea68a19a756f2ce318302f9e1))),UInt32Impl(0))</span>
<span class="hljs-comment">// this is the information we need from the crediting TX</span>
<span class="hljs-comment">// to properly &quot;link&quot; 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(32a2630a9ed8f0f97627e995092c4acb5360f3a96b9c15f88d00b2569314945f:0)</span>
<span class="hljs-comment">// outPoint: TransactionOutPoint = TransactionOutPoint(ad48067c08ff061ed440ba803e9405d91fabeee65d123f052aaf4e3025a40455:0)</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(32a2630a9ed8f0f97627e995092c4acb5360f3a96b9c15f88d00b2569314945f:0),EmptyScriptSignature,UInt32Impl(0))</span>
<span class="hljs-comment">// input: TransactionInput = TransactionInputImpl(TransactionOutPoint(ad48067c08ff061ed440ba803e9405d91fabeee65d123f052aaf4e3025a40455:0),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(32a2630a9ed8f0f97627e995092c4acb5360f3a96b9c15f88d00b2569314945f:0),EmptyScriptSignature,UInt32Impl(0))),Vector(TransactionOutput(5000 sats,pkh(29eb88a513002fbc210fc045819a8f18a9a1252c))),UInt32Impl(0))</span>
<span class="hljs-comment">// builderResult: RawTxBuilderResult = RawTxBuilderResult(Int32Impl(2),Vector(TransactionInputImpl(TransactionOutPoint(ad48067c08ff061ed440ba803e9405d91fabeee65d123f052aaf4e3025a40455:0),EmptyScriptSignature,UInt32Impl(0))),Vector(TransactionOutput(5000 sats,pkh(1fc961516022ae0a4ac3a4f72fb8f6807f2508f6))),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(32a2630a9ed8f0f97627e995092c4acb5360f3a96b9c15f88d00b2569314945f:0),10000 sats,ECPublicKey(037800b7257db77b3677adecac46e7c224e219d83653d476b39b275b79a28ae943))</span>
<span class="hljs-comment">// inputInfo: P2PKHInputInfo = P2PKHInputInfo(TransactionOutPoint(ad48067c08ff061ed440ba803e9405d91fabeee65d123f052aaf4e3025a40455:0),10000 sats,ECPublicKey(03a197f9afeada5ab398d6e0a98bd383fe285f4292522c5bd7ad4d237e4b877744))</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(ECPrivateKeyImpl)</span>
<span class="hljs-keyword">val</span> changeSPK = <span class="hljs-type">P2PKHScriptPubKey</span>(pubKey = changePrivKey.publicKey)
<span class="hljs-comment">// changeSPK: P2PKHScriptPubKey = pkh(ea16d21958b51f0c4a4eff94f78ada10308d4d88)</span>
<span class="hljs-comment">// changeSPK: P2PKHScriptPubKey = pkh(163bd73c66636a3069b1d043c4fd8a618d28985f)</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(32a2630a9ed8f0f97627e995092c4acb5360f3a96b9c15f88d00b2569314945f:0),10000 sats,ECPublicKey(037800b7257db77b3677adecac46e7c224e219d83653d476b39b275b79a28ae943))),1 sats/byte,pkh(ea16d21958b51f0c4a4eff94f78ada10308d4d88))</span>
<span class="hljs-comment">// finalizer: StandardNonInteractiveFinalizer = StandardNonInteractiveFinalizer(Vector(P2PKHInputInfo(TransactionOutPoint(ad48067c08ff061ed440ba803e9405d91fabeee65d123f052aaf4e3025a40455:0),10000 sats,ECPublicKey(03a197f9afeada5ab398d6e0a98bd383fe285f4292522c5bd7ad4d237e4b877744))),1 sats/byte,pkh(163bd73c66636a3069b1d043c4fd8a618d28985f))</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> unsignedTxF: <span class="hljs-type">Future</span>[<span class="hljs-type">Transaction</span>] = finalizer.buildTx(builderResult)
<span class="hljs-comment">// unsignedTxF: Future[Transaction] = Future(Success(BaseTransaction(Int32Impl(2),Vector(TransactionInputImpl(TransactionOutPoint(32a2630a9ed8f0f97627e995092c4acb5360f3a96b9c15f88d00b2569314945f:0),EmptyScriptSignature,UInt32Impl(0))),Vector(TransactionOutput(5000 sats,pkh(29eb88a513002fbc210fc045819a8f18a9a1252c)), TransactionOutput(4775 sats,pkh(ea16d21958b51f0c4a4eff94f78ada10308d4d88))),UInt32Impl(0))))</span>
<span class="hljs-comment">// unsignedTxF: Future[Transaction] = Future(Success(BaseTransaction(Int32Impl(2),Vector(TransactionInputImpl(TransactionOutPoint(ad48067c08ff061ed440ba803e9405d91fabeee65d123f052aaf4e3025a40455:0),EmptyScriptSignature,UInt32Impl(0))),Vector(TransactionOutput(5000 sats,pkh(1fc961516022ae0a4ac3a4f72fb8f6807f2508f6)), TransactionOutput(4775 sats,pkh(163bd73c66636a3069b1d043c4fd8a618d28985f))),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(32a2630a9ed8f0f97627e995092c4acb5360f3a96b9c15f88d00b2569314945f:0),10000 sats,ECPublicKey(037800b7257db77b3677adecac46e7c224e219d83653d476b39b275b79a28ae943)),BaseTransaction(Int32Impl(1),Vector(),Vector(TransactionOutput(10000 sats,pkh(c97750a346dd6386487b668259a1afc45ef84ddf))),UInt32Impl(0)),Vector(Masked(ECPrivateKeyImpl)),SIGHASH_ALL(Int32Impl(1)))</span>
<span class="hljs-comment">// utxoInfo: ScriptSignatureParams[P2PKHInputInfo] = ScriptSignatureParams(P2PKHInputInfo(TransactionOutPoint(ad48067c08ff061ed440ba803e9405d91fabeee65d123f052aaf4e3025a40455:0),10000 sats,ECPublicKey(03a197f9afeada5ab398d6e0a98bd383fe285f4292522c5bd7ad4d237e4b877744)),BaseTransaction(Int32Impl(1),Vector(),Vector(TransactionOutput(10000 sats,pkh(4f25350159c6b28ea68a19a756f2ce318302f9e1))),UInt32Impl(0)),Vector(Masked(ECPrivateKeyImpl)),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(32a2630a9ed8f0f97627e995092c4acb5360f3a96b9c15f88d00b2569314945f:0),10000 sats,ECPublicKey(037800b7257db77b3677adecac46e7c224e219d83653d476b39b275b79a28ae943)),BaseTransaction(Int32Impl(1),Vector(),Vector(TransactionOutput(10000 sats,pkh(c97750a346dd6386487b668259a1afc45ef84ddf))),UInt32Impl(0)),Vector(Masked(ECPrivateKeyImpl)),SIGHASH_ALL(Int32Impl(1))))</span>
<span class="hljs-comment">// utxoInfos: Vector[ScriptSignatureParams[InputInfo]] = Vector(ScriptSignatureParams(P2PKHInputInfo(TransactionOutPoint(ad48067c08ff061ed440ba803e9405d91fabeee65d123f052aaf4e3025a40455:0),10000 sats,ECPublicKey(03a197f9afeada5ab398d6e0a98bd383fe285f4292522c5bd7ad4d237e4b877744)),BaseTransaction(Int32Impl(1),Vector(),Vector(TransactionOutput(10000 sats,pkh(4f25350159c6b28ea68a19a756f2ce318302f9e1))),UInt32Impl(0)),Vector(Masked(ECPrivateKeyImpl)),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 &#x27;sign&#x27; method is going produce a validly signed transaction</span>
@ -201,7 +201,7 @@ builder += input
}
<span class="hljs-type">Await</span>.result(signedTxF, <span class="hljs-number">30.</span>seconds)
}
<span class="hljs-comment">// signedTx: Transaction = BaseTransaction(Int32Impl(2),Vector(TransactionInputImpl(TransactionOutPoint(32a2630a9ed8f0f97627e995092c4acb5360f3a96b9c15f88d00b2569314945f:0),P2PKHScriptSignature(ECPublicKey(037800b7257db77b3677adecac46e7c224e219d83653d476b39b275b79a28ae943), ECDigitalSignature(304402203a7e3299d122a1cbd191734dd7717e923865a2f8d0c2c515996607b86132b786022037c802ebe9e29b6b9b6b4555fdb03770bdd12797f70cdc8020227bc68d7cf61701)),UInt32Impl(0))),Vector(TransactionOutput(5000 sats,pkh(29eb88a513002fbc210fc045819a8f18a9a1252c)), TransactionOutput(4775 sats,pkh(ea16d21958b51f0c4a4eff94f78ada10308d4d88))),UInt32Impl(0))</span>
<span class="hljs-comment">// signedTx: Transaction = BaseTransaction(Int32Impl(2),Vector(TransactionInputImpl(TransactionOutPoint(ad48067c08ff061ed440ba803e9405d91fabeee65d123f052aaf4e3025a40455:0),P2PKHScriptSignature(ECPublicKey(03a197f9afeada5ab398d6e0a98bd383fe285f4292522c5bd7ad4d237e4b877744), ECDigitalSignature(304402204fd2188320de60d8d3ed253dc76f7be443b5f7979d0db241ca05d0a0aba475be02203cb22c05dd0dce2c63b640c41758c3e485a9ad3974bf36bfc392530ec8c7018e01)),UInt32Impl(0))),Vector(TransactionOutput(5000 sats,pkh(1fc961516022ae0a4ac3a4f72fb8f6807f2508f6)), TransactionOutput(4775 sats,pkh(163bd73c66636a3069b1d043c4fd8a618d28985f))),UInt32Impl(0))</span>
</code></pre>
<pre><code class="hljs css language-scala">signedTx.inputs.length
<span class="hljs-comment">// res2: Int = 1</span>
@ -211,7 +211,7 @@ 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 = 02000000015f94149356b2008df8159c6ba9f36053cb4a2c0995e92776f9f0d89e0a63a232000000006a47304402203a7e3299d122a1cbd191734dd7717e923865a2f8d0c2c515996607b86132b786022037c802ebe9e29b6b9b6b4555fdb03770bdd12797f70cdc8020227bc68d7cf6170121037800b7257db77b3677adecac46e7c224e219d83653d476b39b275b79a28ae943000000000288130000000000001976a91429eb88a513002fbc210fc045819a8f18a9a1252c88aca7120000000000001976a914ea16d21958b51f0c4a4eff94f78ada10308d4d8888ac00000000</span>
<span class="hljs-comment">// res4: String = 02000000015504a425304eaf2a053f125de6eeab1fd905943e80ba40d41e06ff087c0648ad000000006a47304402204fd2188320de60d8d3ed253dc76f7be443b5f7979d0db241ca05d0a0aba475be02203cb22c05dd0dce2c63b640c41758c3e485a9ad3974bf36bfc392530ec8c7018e012103a197f9afeada5ab398d6e0a98bd383fe285f4292522c5bd7ad4d237e4b877744000000000288130000000000001976a9141fc961516022ae0a4ac3a4f72fb8f6807f2508f688aca7120000000000001976a914163bd73c66636a3069b1d043c4fd8a618d28985f88ac00000000</span>
</code></pre>
</span></div></article></div><div class="docs-prevnext"><a class="docs-prev button" href="/docs/next/core/psbts"><span class="arrow-prev">← </span><span>Partially Signed Bitcoin Transactions</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 © 2020 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
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@ -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(3045022100bad7c0e86237aba4f7da41e08bb21b2d3a85e0e41fdfe44209da22d44a3f6928022050292629006f076ce514ff7651c20e5153e2f3acfdc6b457acea420a0f989dee)</span>
<span class="hljs-comment">// res0: ECDigitalSignature = ECDigitalSignature(3045022100da36616eb4d1a557c10543823654dee35f0cd3535ec74dd40b3ea2bb9028a26102203e0af7cdf37599200bd97c539614897a1921bfa2799cd9505f13a4c9968230ae)</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(3045022100f9a9b95958e4cb1a19f3ed46a5ea0ee971bcb0abf8dbe5c73660d2c4dc7275ce022049863ec71b7681780b7a9aca683a5724153856b9d0d887a167b32ddcebce393e)</span>
<span class="hljs-comment">// res1: ECDigitalSignature = ECDigitalSignature(30440220758f97fdbe2ced83584951a81a0b4613bf258b46d29e25a1929872faa1a98d2b022013e3d0571929e7186713a43532ef355ad63a0dcf19493525b470f4dfa1eb6326)</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
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@ -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(3045022100bad7c0e86237aba4f7da41e08bb21b2d3a85e0e41fdfe44209da22d44a3f6928022050292629006f076ce514ff7651c20e5153e2f3acfdc6b457acea420a0f989dee)</span>
<span class="hljs-comment">// res0: ECDigitalSignature = ECDigitalSignature(3045022100da36616eb4d1a557c10543823654dee35f0cd3535ec74dd40b3ea2bb9028a26102203e0af7cdf37599200bd97c539614897a1921bfa2799cd9505f13a4c9968230ae)</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(3045022100f9a9b95958e4cb1a19f3ed46a5ea0ee971bcb0abf8dbe5c73660d2c4dc7275ce022049863ec71b7681780b7a9aca683a5724153856b9d0d887a167b32ddcebce393e)</span>
<span class="hljs-comment">// res1: ECDigitalSignature = ECDigitalSignature(30440220758f97fdbe2ced83584951a81a0b4613bf258b46d29e25a1929872faa1a98d2b022013e3d0571929e7186713a43532ef355ad63a0dcf19493525b470f4dfa1eb6326)</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
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@ -120,7 +120,7 @@ libraryDependencies += <span class="hljs-string">&quot;org.bitcoin-s&quot;</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>0.4.0+156-a1862cb6-SNAPSHOT</code>.</p>
recent snapshot published is <code>0.4.0+157-e5225993-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">&quot;snapshots&quot;</span>)

2
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@ -120,7 +120,7 @@ libraryDependencies += <span class="hljs-string">&quot;org.bitcoin-s&quot;</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>0.4.0+156-a1862cb6-SNAPSHOT</code>.</p>
recent snapshot published is <code>0.4.0+157-e5225993-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">&quot;snapshots&quot;</span>)

26
docs/next/key-manager/key-manager.html
View file

@ -85,14 +85,14 @@ as a logical distinction for further development in subsequent releases.</p>
<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, 0xcfda65bc974c3375bec6e3ba30b214093098c4e784eed183bcd535d7e78d70c5)</span>
<span class="hljs-comment">// entropy: scodec.bits.BitVector = BitVector(256 bits, 0x21ccfeba1bee641715f483cab3b84884b60e121fb4490bc3517c80bbd87abaa0)</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(sound, spring, hundred, company, segment, river, wild, symbol, riot, machine, lunar, bar, another, give, own, oven, spice, bulb, crystal, hill, lazy, shop, seek, price)</span>
<span class="hljs-comment">// Vector(canyon, gun, purse, daughter, town, argue, fit, motor, skirt, oven, banana, annual, genius, animal, learn, matrix, armed, box, game, accident, rural, diary, tunnel, agent)</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>
@ -107,7 +107,7 @@ 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 &#x27;key-manager-example` that will</span>
<span class="hljs-comment">//have a file in it called &quot;encrypted-bitcoin-s-seed.json&quot;</span>
<span class="hljs-keyword">val</span> seedPath = <span class="hljs-type">Files</span>.createTempDirectory(<span class="hljs-string">&quot;key-manager-example&quot;</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-example1983378315803365649/encrypted-bitcoin-s-seed.json</span>
<span class="hljs-comment">// seedPath: Path = /tmp/key-manager-example4081300041522596963/encrypted-bitcoin-s-seed.json</span>
<span class="hljs-comment">//let&#x27;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>
@ -118,7 +118,7 @@ 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-example1983378315803365649/encrypted-bitcoin-s-seed.json,m/84&#x27;,RegTest)</span>
<span class="hljs-comment">// kmParams: KeyManagerParams = KeyManagerParams(/tmp/key-manager-example4081300041522596963/encrypted-bitcoin-s-seed.json,m/84&#x27;,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">&quot;password&quot;</span>))
<span class="hljs-comment">// aesPasswordOpt: Some[AesPassword] = Some(Masked(AesPassword))</span>
@ -127,15 +127,15 @@ generate specific kinds of addresses for wallets.</p>
<span class="hljs-comment">// km: Either[KeyManagerInitializeError, BIP39KeyManager] = Right(</span>
<span class="hljs-comment">// BIP39KeyManager(</span>
<span class="hljs-comment">// mnemonic=Masked(MnemonicCodeImpl),</span>
<span class="hljs-comment">// kmParams=KeyManagerParams(/tmp/key-manager-example1983378315803365649/encrypted-bitcoin-s-seed.json,m/84&#x27;,RegTest),</span>
<span class="hljs-comment">// kmParams=KeyManagerParams(/tmp/key-manager-example4081300041522596963/encrypted-bitcoin-s-seed.json,m/84&#x27;,RegTest),</span>
<span class="hljs-comment">// bip39PasswordOpt=None,</span>
<span class="hljs-comment">// creationTime=2020-12-15T13:59:27Z))</span>
<span class="hljs-comment">// creationTime=2020-12-15T18:30:34Z))</span>
<span class="hljs-keyword">val</span> rootXPub = km.right.get.getRootXPub
<span class="hljs-comment">// rootXPub: ExtPublicKey = vpub5SLqN2bLY4WeY5USGKqPavDf3GtczRV8LrAu8vBtiUESpJC2tNfVknA7nnnSnk4aP5zbxUGhUtcZhY89TFinW1DysKb6QUADjvCHWe6JRcA</span>
<span class="hljs-comment">// rootXPub: ExtPublicKey = vpub5SLqN2bLY4WeZHnGGkSkSVJPsdKUudCKBp2kJsHcuPsk5c8xgKRgwTNQNavUt3MVrW8ffNLFESkgdFS2iMw79fRFSNA5GcmYyPXo5okVxRt</span>
println(rootXPub)
<span class="hljs-comment">// vpub5SLqN2bLY4WeY5USGKqPavDf3GtczRV8LrAu8vBtiUESpJC2tNfVknA7nnnSnk4aP5zbxUGhUtcZhY89TFinW1DysKb6QUADjvCHWe6JRcA</span>
<span class="hljs-comment">// vpub5SLqN2bLY4WeZHnGGkSkSVJPsdKUudCKBp2kJsHcuPsk5c8xgKRgwTNQNavUt3MVrW8ffNLFESkgdFS2iMw79fRFSNA5GcmYyPXo5okVxRt</span>
</code></pre>
<p>Which should print something that looks like this</p>
<p><code>vpub5SLqN2bLY4WeXxMqwJHJFBEwxSscGB2uDUnsTS3edVjZEwTrQDFDNqoR2xLqARQPabGaXsHSTenTRcqm2EnB9MpuC4vSk3LqSgNmGGZtuq7</code></p>
@ -144,22 +144,22 @@ 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&#x27;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-example1983378315803365649/encrypted-bitcoin-s-seed.json,m/84&#x27;,MainNet)</span>
<span class="hljs-comment">// mainnetKmParams: KeyManagerParams = KeyManagerParams(/tmp/key-manager-example4081300041522596963/encrypted-bitcoin-s-seed.json,m/84&#x27;,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>(mnemonic, mainnetKmParams, <span class="hljs-type">None</span>, <span class="hljs-type">Instant</span>.now)
<span class="hljs-comment">// mainnetKeyManager: BIP39KeyManager = </span>
<span class="hljs-comment">// BIP39KeyManager(</span>
<span class="hljs-comment">// mnemonic=Masked(MnemonicCodeImpl),</span>
<span class="hljs-comment">// kmParams=KeyManagerParams(/tmp/key-manager-example1983378315803365649/encrypted-bitcoin-s-seed.json,m/84&#x27;,MainNet),</span>
<span class="hljs-comment">// kmParams=KeyManagerParams(/tmp/key-manager-example4081300041522596963/encrypted-bitcoin-s-seed.json,m/84&#x27;,MainNet),</span>
<span class="hljs-comment">// bip39PasswordOpt=None,</span>
<span class="hljs-comment">// creationTime=2020-12-15T13:59:28.107Z)</span>
<span class="hljs-comment">// creationTime=2020-12-15T18:30:35.352Z)</span>
<span class="hljs-keyword">val</span> mainnetXpub = mainnetKeyManager.getRootXPub
<span class="hljs-comment">// mainnetXpub: ExtPublicKey = zpub6jftahH18ngZwGEubkytRGbfj9UQkuT81JFnGVmSEVjy2hSwu1KkF2nfsccnnNgG1eTpxNewKY2mEgaQL3NqgwxPLgNnk7SAppSs4tY8A5r</span>
<span class="hljs-comment">// mainnetXpub: ExtPublicKey = zpub6jftahH18ngZxUYjcBbFGqgQZVuGg7AJrG7dSSsARRPGJ1Psgx5wRhzxTQkpsfyBV4btfGiV56AtAPtHb9bALc9euiwmcG3W4HnNe9Ve6aJ</span>
println(mainnetXpub)
<span class="hljs-comment">// zpub6jftahH18ngZwGEubkytRGbfj9UQkuT81JFnGVmSEVjy2hSwu1KkF2nfsccnnNgG1eTpxNewKY2mEgaQL3NqgwxPLgNnk7SAppSs4tY8A5r</span>
<span class="hljs-comment">// zpub6jftahH18ngZxUYjcBbFGqgQZVuGg7AJrG7dSSsARRPGJ1Psgx5wRhzxTQkpsfyBV4btfGiV56AtAPtHb9bALc9euiwmcG3W4HnNe9Ve6aJ</span>
</code></pre>
<p>Which gives us something that looks like this</p>
<p><code>zpub6jftahH18ngZw98KGjRo5XcxeKTQ2eztsvskb1dC9XF5TLimQquTs6Ry7nBBA425D9joXmfgJJCexmJ1u2SELJZJfRi95gcnXadLpZzYb5c</code></p>

26
docs/next/key-manager/key-manager/index.html
View file

@ -85,14 +85,14 @@ as a logical distinction for further development in subsequent releases.</p>
<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, 0xcfda65bc974c3375bec6e3ba30b214093098c4e784eed183bcd535d7e78d70c5)</span>
<span class="hljs-comment">// entropy: scodec.bits.BitVector = BitVector(256 bits, 0x21ccfeba1bee641715f483cab3b84884b60e121fb4490bc3517c80bbd87abaa0)</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(sound, spring, hundred, company, segment, river, wild, symbol, riot, machine, lunar, bar, another, give, own, oven, spice, bulb, crystal, hill, lazy, shop, seek, price)</span>
<span class="hljs-comment">// Vector(canyon, gun, purse, daughter, town, argue, fit, motor, skirt, oven, banana, annual, genius, animal, learn, matrix, armed, box, game, accident, rural, diary, tunnel, agent)</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>
@ -107,7 +107,7 @@ 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 &#x27;key-manager-example` that will</span>
<span class="hljs-comment">//have a file in it called &quot;encrypted-bitcoin-s-seed.json&quot;</span>
<span class="hljs-keyword">val</span> seedPath = <span class="hljs-type">Files</span>.createTempDirectory(<span class="hljs-string">&quot;key-manager-example&quot;</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-example1983378315803365649/encrypted-bitcoin-s-seed.json</span>
<span class="hljs-comment">// seedPath: Path = /tmp/key-manager-example4081300041522596963/encrypted-bitcoin-s-seed.json</span>
<span class="hljs-comment">//let&#x27;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>
@ -118,7 +118,7 @@ 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-example1983378315803365649/encrypted-bitcoin-s-seed.json,m/84&#x27;,RegTest)</span>
<span class="hljs-comment">// kmParams: KeyManagerParams = KeyManagerParams(/tmp/key-manager-example4081300041522596963/encrypted-bitcoin-s-seed.json,m/84&#x27;,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">&quot;password&quot;</span>))
<span class="hljs-comment">// aesPasswordOpt: Some[AesPassword] = Some(Masked(AesPassword))</span>
@ -127,15 +127,15 @@ generate specific kinds of addresses for wallets.</p>
<span class="hljs-comment">// km: Either[KeyManagerInitializeError, BIP39KeyManager] = Right(</span>
<span class="hljs-comment">// BIP39KeyManager(</span>
<span class="hljs-comment">// mnemonic=Masked(MnemonicCodeImpl),</span>
<span class="hljs-comment">// kmParams=KeyManagerParams(/tmp/key-manager-example1983378315803365649/encrypted-bitcoin-s-seed.json,m/84&#x27;,RegTest),</span>
<span class="hljs-comment">// kmParams=KeyManagerParams(/tmp/key-manager-example4081300041522596963/encrypted-bitcoin-s-seed.json,m/84&#x27;,RegTest),</span>
<span class="hljs-comment">// bip39PasswordOpt=None,</span>
<span class="hljs-comment">// creationTime=2020-12-15T13:59:27Z))</span>
<span class="hljs-comment">// creationTime=2020-12-15T18:30:34Z))</span>
<span class="hljs-keyword">val</span> rootXPub = km.right.get.getRootXPub
<span class="hljs-comment">// rootXPub: ExtPublicKey = vpub5SLqN2bLY4WeY5USGKqPavDf3GtczRV8LrAu8vBtiUESpJC2tNfVknA7nnnSnk4aP5zbxUGhUtcZhY89TFinW1DysKb6QUADjvCHWe6JRcA</span>
<span class="hljs-comment">// rootXPub: ExtPublicKey = vpub5SLqN2bLY4WeZHnGGkSkSVJPsdKUudCKBp2kJsHcuPsk5c8xgKRgwTNQNavUt3MVrW8ffNLFESkgdFS2iMw79fRFSNA5GcmYyPXo5okVxRt</span>
println(rootXPub)
<span class="hljs-comment">// vpub5SLqN2bLY4WeY5USGKqPavDf3GtczRV8LrAu8vBtiUESpJC2tNfVknA7nnnSnk4aP5zbxUGhUtcZhY89TFinW1DysKb6QUADjvCHWe6JRcA</span>
<span class="hljs-comment">// vpub5SLqN2bLY4WeZHnGGkSkSVJPsdKUudCKBp2kJsHcuPsk5c8xgKRgwTNQNavUt3MVrW8ffNLFESkgdFS2iMw79fRFSNA5GcmYyPXo5okVxRt</span>
</code></pre>
<p>Which should print something that looks like this</p>
<p><code>vpub5SLqN2bLY4WeXxMqwJHJFBEwxSscGB2uDUnsTS3edVjZEwTrQDFDNqoR2xLqARQPabGaXsHSTenTRcqm2EnB9MpuC4vSk3LqSgNmGGZtuq7</code></p>
@ -144,22 +144,22 @@ 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&#x27;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-example1983378315803365649/encrypted-bitcoin-s-seed.json,m/84&#x27;,MainNet)</span>
<span class="hljs-comment">// mainnetKmParams: KeyManagerParams = KeyManagerParams(/tmp/key-manager-example4081300041522596963/encrypted-bitcoin-s-seed.json,m/84&#x27;,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>(mnemonic, mainnetKmParams, <span class="hljs-type">None</span>, <span class="hljs-type">Instant</span>.now)
<span class="hljs-comment">// mainnetKeyManager: BIP39KeyManager = </span>
<span class="hljs-comment">// BIP39KeyManager(</span>
<span class="hljs-comment">// mnemonic=Masked(MnemonicCodeImpl),</span>
<span class="hljs-comment">// kmParams=KeyManagerParams(/tmp/key-manager-example1983378315803365649/encrypted-bitcoin-s-seed.json,m/84&#x27;,MainNet),</span>
<span class="hljs-comment">// kmParams=KeyManagerParams(/tmp/key-manager-example4081300041522596963/encrypted-bitcoin-s-seed.json,m/84&#x27;,MainNet),</span>
<span class="hljs-comment">// bip39PasswordOpt=None,</span>
<span class="hljs-comment">// creationTime=2020-12-15T13:59:28.107Z)</span>
<span class="hljs-comment">// creationTime=2020-12-15T18:30:35.352Z)</span>
<span class="hljs-keyword">val</span> mainnetXpub = mainnetKeyManager.getRootXPub
<span class="hljs-comment">// mainnetXpub: ExtPublicKey = zpub6jftahH18ngZwGEubkytRGbfj9UQkuT81JFnGVmSEVjy2hSwu1KkF2nfsccnnNgG1eTpxNewKY2mEgaQL3NqgwxPLgNnk7SAppSs4tY8A5r</span>
<span class="hljs-comment">// mainnetXpub: ExtPublicKey = zpub6jftahH18ngZxUYjcBbFGqgQZVuGg7AJrG7dSSsARRPGJ1Psgx5wRhzxTQkpsfyBV4btfGiV56AtAPtHb9bALc9euiwmcG3W4HnNe9Ve6aJ</span>
println(mainnetXpub)
<span class="hljs-comment">// zpub6jftahH18ngZwGEubkytRGbfj9UQkuT81JFnGVmSEVjy2hSwu1KkF2nfsccnnNgG1eTpxNewKY2mEgaQL3NqgwxPLgNnk7SAppSs4tY8A5r</span>
<span class="hljs-comment">// zpub6jftahH18ngZxUYjcBbFGqgQZVuGg7AJrG7dSSsARRPGJ1Psgx5wRhzxTQkpsfyBV4btfGiV56AtAPtHb9bALc9euiwmcG3W4HnNe9Ve6aJ</span>
</code></pre>
<p>Which gives us something that looks like this</p>
<p><code>zpub6jftahH18ngZw98KGjRo5XcxeKTQ2eztsvskb1dC9XF5TLimQquTs6Ry7nBBA425D9joXmfgJJCexmJ1u2SELJZJfRi95gcnXadLpZzYb5c</code></p>

4
docs/next/secp256k1/secp256k1.html
View file

@ -114,12 +114,12 @@ println(<span class="hljs-string">s&quot;Verified with NativeSecp256k1 again=<sp
<pre><code class="hljs css language-scala"><span class="hljs-keyword">val</span> privKey = <span class="hljs-type">ECPrivateKey</span>.freshPrivateKey
<span class="hljs-comment">// privKey: ECPrivateKey = Masked(ECPrivateKeyImpl)</span>
<span class="hljs-keyword">val</span> publicKey = privKey.publicKeyWithBouncyCastle
<span class="hljs-comment">// publicKey: ECPublicKey = ECPublicKey(02115965d074b2bb13958d48b99c106e848b1c7bac37e332d12e2bcff6a5c209fd)</span>
<span class="hljs-comment">// publicKey: ECPublicKey = ECPublicKey(02134990212e44d66c5b9fc78f83e84ef4b4968fbd1fb72a199b022a21c5cfa6a5)</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-keyword">val</span> signature = privKey.signWithBouncyCastle(dataToSign.bytes)
<span class="hljs-comment">// signature: ECDigitalSignature = ECDigitalSignature(3045022100f4a1ba95d8da98adfad5defe80ae457d08cccf9b13fa55afc7a3c8ad0e8710b6022078dde26fea473ea0b7a66bd52f6523d13285e44778254986e9a1726824ea01a6)</span>
<span class="hljs-comment">// signature: ECDigitalSignature = ECDigitalSignature(3045022100da874122817994945749689505dab61be529cc526fbd797953622bca714e91cd02202e4c18dec8308935907a5aeefd13a2ed9bfc0b0c816d58c825e28a226a85107a)</span>
<span class="hljs-keyword">val</span> verified = publicKey.verifyWithBouncyCastle(dataToSign.bytes, signature)
<span class="hljs-comment">// verified: Boolean = true</span>

4
docs/next/secp256k1/secp256k1/index.html
View file

@ -114,12 +114,12 @@ println(<span class="hljs-string">s&quot;Verified with NativeSecp256k1 again=<sp
<pre><code class="hljs css language-scala"><span class="hljs-keyword">val</span> privKey = <span class="hljs-type">ECPrivateKey</span>.freshPrivateKey
<span class="hljs-comment">// privKey: ECPrivateKey = Masked(ECPrivateKeyImpl)</span>
<span class="hljs-keyword">val</span> publicKey = privKey.publicKeyWithBouncyCastle
<span class="hljs-comment">// publicKey: ECPublicKey = ECPublicKey(02115965d074b2bb13958d48b99c106e848b1c7bac37e332d12e2bcff6a5c209fd)</span>
<span class="hljs-comment">// publicKey: ECPublicKey = ECPublicKey(02134990212e44d66c5b9fc78f83e84ef4b4968fbd1fb72a199b022a21c5cfa6a5)</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-keyword">val</span> signature = privKey.signWithBouncyCastle(dataToSign.bytes)
<span class="hljs-comment">// signature: ECDigitalSignature = ECDigitalSignature(3045022100f4a1ba95d8da98adfad5defe80ae457d08cccf9b13fa55afc7a3c8ad0e8710b6022078dde26fea473ea0b7a66bd52f6523d13285e44778254986e9a1726824ea01a6)</span>
<span class="hljs-comment">// signature: ECDigitalSignature = ECDigitalSignature(3045022100da874122817994945749689505dab61be529cc526fbd797953622bca714e91cd02202e4c18dec8308935907a5aeefd13a2ed9bfc0b0c816d58c825e28a226a85107a)</span>
<span class="hljs-keyword">val</span> verified = publicKey.verifyWithBouncyCastle(dataToSign.bytes, signature)
<span class="hljs-comment">// verified: Boolean = true</span>