2015-01-03 17:04:14 +01:00
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<title>JSDoc: Source: wif.js</title>
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<h1 class="page-title">Source: wif.js</h1>
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<article>
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<pre class="prettyprint source linenums"><code>/**
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* Implements WIF encoding/decoding.
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* @see {@link https://en.bitcoin.it/wiki/Wallet_import_format}
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* @module bitmessage/wif
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*/
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"use strict";
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var bufferEqual = require("buffer-equal");
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var bs58 = require("bs58");
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2015-01-31 12:54:23 +01:00
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var assert = require("./_util").assert;
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2015-01-03 17:04:14 +01:00
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var bmcrypto = require("./crypto");
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// Compute the WIF checksum for the given data.
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2015-01-31 12:54:23 +01:00
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function getwifchecksum(data) {
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return bmcrypto.sha256(bmcrypto.sha256(data)).slice(0, 4);
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}
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/**
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2015-02-12 11:44:15 +01:00
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* Decode WIF-encoded private key (corresponded to a uncompressed public
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* key).
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2015-01-03 17:04:14 +01:00
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* @param {string} wif - Encoded key
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* @return {Buffer} Private key.
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*/
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exports.decode = function(wif) {
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var bytes = bs58.decode(wif);
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assert(bytes[0] === 0x80, "Bad WIF");
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var data = new Buffer(bytes.slice(0, -4));
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var checksum = new Buffer(bytes.slice(-4));
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2015-01-31 12:54:23 +01:00
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assert(bufferEqual(checksum, getwifchecksum(data)), "Bad checkum");
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2015-01-03 17:04:14 +01:00
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return data.slice(1);
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};
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/**
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2015-02-12 11:44:15 +01:00
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* Convert private key to a WIF (corresponded to a uncompressed public
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* key).
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2015-01-03 17:04:14 +01:00
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* @param {Buffer} privateKey - A private key to encode
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2015-02-12 11:44:15 +01:00
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* @return {string} WIF-encoded private key.
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2015-01-03 17:04:14 +01:00
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*/
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exports.encode = function(privateKey) {
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var data = Buffer.concat([new Buffer([0x80]), privateKey]);
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2015-01-31 12:54:23 +01:00
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var checksum = getwifchecksum(data);
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2015-01-03 17:04:14 +01:00
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var bytes = Buffer.concat([data, checksum]);
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return bs58.encode(bytes);
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};
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</code></pre>
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</article>
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</section>
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<nav>
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2015-02-28 20:57:18 +01:00
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<h2><a href="index.html">Home</a></h2><h3>Modules</h3><ul><li><a href="module-bitmessage.html">bitmessage</a></li><li><a href="module-bitmessage_address.html">bitmessage/address</a></li><li><a href="module-bitmessage_crypto.html">bitmessage/crypto</a></li><li><a href="module-bitmessage_messages.html">bitmessage/messages</a></li><li><a href="module-bitmessage_objects.html">bitmessage/objects</a></li><li><a href="module-bitmessage_pow.html">bitmessage/pow</a></li><li><a href="module-bitmessage_structs.html">bitmessage/structs</a></li><li><a href="module-bitmessage_user-agent.html">bitmessage/user-agent</a></li><li><a href="module-bitmessage_wif.html">bitmessage/wif</a></li></ul><h3>Classes</h3><ul><li><a href="module-bitmessage_address.Address.html">Address</a></li><li><a href="module-bitmessage_structs.PubkeyBitfield.html">PubkeyBitfield</a></li><li><a href="module-bitmessage_structs.ServicesBitfield.html">ServicesBitfield</a></li></ul><h3>Namespaces</h3><ul><li><a href="module-bitmessage_messages.addr.html">addr</a></li><li><a href="module-bitmessage_messages.error.html">error</a></li><li><a href="module-bitmessage_messages.getdata.html">getdata</a></li><li><a href="module-bitmessage_messages.inv.html">inv</a></li><li><a href="module-bitmessage_messages.version.html">version</a></li><li><a href="module-bitmessage_objects.broadcast.html">broadcast</a></li><li><a href="module-bitmessage_objects.getpubkey.html">getpubkey</a></li><li><a href="module-bitmessage_objects.msg.html">msg</a></li><li><a href="module-bitmessage_objects.pubkey.html">pubkey</a></li><li><a href="module-bitmessage_structs.encrypted.html">encrypted</a></li><li><a href="module-bitmessage_structs.inv_vect.html">inv_vect</a></li><li><a href="module-bitmessage_structs.message.html">message</a></li><li><a href="module-bitmessage_structs.net_addr.html">net_addr</a></li><li><a href="module-bitmessage_structs.object.html">object</a></li><li><a href="module-bitmessage_structs.var_int.html">var_int</a></li><li><a href="module-bitmessage_structs.var_int_list.html">var_int_list</a></li><li><a href="module-bitmessage_structs.var_str.html">var_str</a></li></ul>
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2015-01-03 17:04:14 +01:00
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2015-02-28 20:57:18 +01:00
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Documentation generated by <a href="https://github.com/jsdoc3/jsdoc">JSDoc 3.4.0-dev</a> on Sat Feb 28 2015 22:57:02 GMT+0300 (MSK)
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2015-01-03 17:04:14 +01:00
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