Private Key, Public Key, Signature, AES, Encryption / Decryption
import ecc from 'picojs-ecc'
// or
const ecc = require('picojs-ecc')- Install with:
yarn add picojs-ecc - Html script tag, see releases for the correct version and its matching script integrity hash.
<html>
<head>
<meta charset="utf-8">
<!--
sha512-cL+IQQaQ586s9DrXfGtDheRpj5iDKh2M+xlpfwbhNjRIp4BGQ1fkM/vB4Ta8mc+f51YBW9sJiPcyMDIreJe6gQ== lib/picojs-ecc.js
sha512-dYFDmK/d9r3/NCp6toLtfkwOjSMRBaEzaGAx1tfRItC0nsI0hVLERk05iNBQR7uDNI7ludYhcBI4vUiFHdjsTQ== lib/picojs-ecc.min.js
sha512-eq1SCoSe38uR1UVuQMwR73VgY8qKTBDc87n2nIiC5WLhn1o2y1U6c5wY8lrigVX7INM8fM0PxDlMX5WvpghKig== lib/picojs-ecc.min.js.map
-->
<script src="https://cdn.jsdelivr.net/npm/picojs-ecc@4.0.4/lib/picojs-ecc.min.js"
integrity="sha512-dYFDmK/d9r3/NCp6toLtfkwOjSMRBaEzaGAx1tfRItC0nsI0hVLERk05iNBQR7uDNI7ludYhcBI4vUiFHdjsTQ=="
crossorigin="anonymous"></script>
</head>
<body>
See console object: picojs_ecc
</body>
</html>- wif
- ecc
- pubkey
Type: string
Initialize by running some self-checking code. This should take a second to gather additional CPU entropy used during private key generation.
Initialization happens once even if called multiple times.
Returns Promise
Does not pause to gather CPU entropy.
Returns Promise<PrivateKey> test key
cpuEntropyBitsnumber gather additional entropy from a CPU mining algorithm. This will already happen once by default. (optional, default0)
ecc.randomKey().then(privateKey => {
console.log('Private Key:\t', privateKey) // wif
console.log('Public Key:\t', ecc.privateToPublic(privateKey)) // PICOkey...
})seedstring any length string. This is private. The same seed produces the same private key every time. At least 128 random bits should be used to produce a good private key.
ecc.seedPrivate('secret') === wifReturns wif
ecc.privateToPublic(wif) === pubkeyReturns pubkey
ecc.isValidPublic(pubkey) === trueReturns boolean valid
wifwif
ecc.isValidPrivate(wif) === trueReturns boolean valid
Create a signature using data or a hash.
data(string | Buffer)privateKey(wif | PrivateKey)encodingString data encoding (if string) (optional, default'utf8')
ecc.sign('I am alive', wif)Returns string string signature
dataSha256(String | Buffer) sha256 hash 32 byte buffer or stringprivateKey(wif | PrivateKey)encodingString dataSha256 encoding (if string) (optional, default'hex')
Returns string string signature
Verify signed data.
signature(string | Buffer) buffer or hex stringdata(string | Buffer)pubkey(pubkey | PublicKey)encoding(optional, default'utf8')hashDataboolean sha256 hash data before verify (optional, defaulttrue)
ecc.verify(signature, 'I am alive', pubkey) === trueReturns boolean
Recover the public key used to create the signature.
signature(String | Buffer) (PICObase58sig.., Hex, Buffer)data(String | Buffer) full dataencodingString data encoding (if data is a string) (optional, default'utf8')
ecc.recover(signature, 'I am alive') === pubkeyReturns pubkey
signature(String | Buffer) (PICObase58sig.., Hex, Buffer)dataSha256(String | Buffer) sha256 hash 32 byte buffer or hex stringencodingString dataSha256 encoding (if dataSha256 is a string) (optional, default'hex')
Returns PublicKey
data(string | Buffer) always binary, you may need Buffer.from(data, 'hex')resultEncoding(optional, default'hex')encodingstring result encoding 'hex', 'binary' or 'base64' (optional, default'hex')
ecc.sha256('hashme') === '02208b..'ecc.sha256(Buffer.from('02208b', 'hex')) === '29a23..'Returns (string | Buffer) Buffer when encoding is null, or string
PICOKey..
Type: string
let {PrivateKey, PublicKey, Signature, Aes, key_utils, config} = require('picojs-ecc')
// Create a new random private key
let privateWif
PrivateKey.randomKey().then(privateKey => privateWif = privateKey.toWif())
// Convert to a public key
pubkey = PrivateKey.fromString(privateWif).toPublic().toString()git clone https://github.com/PICOIO/picojs-ecc.git
cd picojs-ecc
yarn
yarn build_browser
# builds: ./dist/picojs-ecc.js
# Verify release hash<script src=picojs-ecc.js></script>var ecc = picojs_ecc
ecc.randomKey().then(privateWif => {
var pubkey = ecc.privateToPublic(privateWif)
console.log(pubkey)
})