Private Key, Public Key, Signature, AES, Encryption / Decryption
import ecc from 'eosjs-ecc'
// or
const ecc = require('eosjs-ecc')
yarn add eosjs-ecc<html>
<head>
<meta charset="utf-8">
<!--
sha512-cL+IQQaQ586s9DrXfGtDheRpj5iDKh2M+xlpfwbhNjRIp4BGQ1fkM/vB4Ta8mc+f51YBW9sJiPcyMDIreJe6gQ== lib/eosjs-ecc.js
sha512-dYFDmK/d9r3/NCp6toLtfkwOjSMRBaEzaGAx1tfRItC0nsI0hVLERk05iNBQR7uDNI7ludYhcBI4vUiFHdjsTQ== lib/eosjs-ecc.min.js
sha512-eq1SCoSe38uR1UVuQMwR73VgY8qKTBDc87n2nIiC5WLhn1o2y1U6c5wY8lrigVX7INM8fM0PxDlMX5WvpghKig== lib/eosjs-ecc.min.js.map
-->
<script src="https://cdn.jsdelivr.net/npm/eosjs-ecc@4.0.4/lib/eosjs-ecc.min.js"
integrity="sha512-dYFDmK/d9r3/NCp6toLtfkwOjSMRBaEzaGAx1tfRItC0nsI0hVLERk05iNBQR7uDNI7ludYhcBI4vUiFHdjsTQ=="
crossorigin="anonymous"></script>
</head>
<body>
See console object: eosjs_ecc
</body>
</html>
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
cpuEntropyBits number gather additional entropy
from a CPU mining algorithm. This will already happen once by
default. (optional, default 0)ecc.randomKey().then(privateKey => {
console.log('Private Key:\t', privateKey) // wif
console.log('Public Key:\t', ecc.privateToPublic(privateKey)) // EOSkey...
})
seed string 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') === wif
Returns wif
ecc.privateToPublic(wif) === pubkey
Returns pubkey
ecc.isValidPublic(pubkey) === true
Returns boolean valid
wif wifecc.isValidPrivate(wif) === true
Returns boolean valid
Create a signature using data or a hash.
data (string | Buffer)privateKey (wif | PrivateKey)encoding String 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)encoding String 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')hashData boolean sha256 hash data before verify (optional, default true)ecc.verify(signature, 'I am alive', pubkey) === true
Returns boolean
Recover the public key used to create the signature.
signature (String | Buffer) (EOSbase58sig.., Hex, Buffer)data (String | Buffer) full dataencoding String data encoding (if data is a string) (optional, default 'utf8')ecc.recover(signature, 'I am alive') === pubkey
Returns pubkey
signature (String | Buffer) (EOSbase58sig.., Hex, Buffer)dataSha256 (String | Buffer) sha256 hash 32 byte buffer or hex stringencoding String 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')encoding string 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
EOSKey..
Type: string
let {PrivateKey, PublicKey, Signature, Aes, key_utils, config} = require('eosjs-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/EOSIO/eosjs-ecc.git
cd eosjs-ecc
yarn
yarn build_browser
# builds: ./dist/eosjs-ecc.js
# Verify release hash
<script src=eosjs-ecc.js></script>
var ecc = eosjs_ecc
ecc.randomKey().then(privateWif => {
var pubkey = ecc.privateToPublic(privateWif)
console.log(pubkey)
})
FAQs
Elliptic curve cryptography functions
We found that eosjs-ecc demonstrated a not healthy version release cadence and project activity because the last version was released a year ago. It has 8 open source maintainers collaborating on the project.
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