kiki
v1.1.6
Published
Wrappers for DSA, EC, Bitcoin and other keys to provide a common API for signing/verifying/importing/exporting
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kiki
Wrappers for DSA, EC, Bitcoin and other keys to provide a common API for signing/verifying/importing/exporting
this module is used by Tradle
Usage
var kiki = require('kiki');
var Keys = kiki.Keys
// load ec public key
var ecPubKey = new Keys.EC({
pub: '022ee9fefd1b275d4ee1e7c41157cd4753ad4cbd0cbfdc76eef85ebae230bf27ee'
})
// load ec private key
var ecPrivKey = new Keys.EC({
priv: '01762d59097688a1f1cd241aadee4cb1bd3d37017f71501b28e85ecdab5349c2'
})
// new ec private key
var newECKey = Keys.EC.gen({
curve: 'ed25519'
})
// new bitcoin key
var btcKey = Keys.Bitcoin.gen({
networkName: 'bitcoin'
})
// new dsa key
var dsaKey = Keys.DSA.gen()
// keys with metadata
btcKey = Keys.Bitcoin.gen({
networkName: 'testnet',
// arbitrary metadata
label: 'most excellent key',
purpose: 'messaging'
})
sync API (may not be supported for some keys)
var sig = ecKey.signSync('hey ho')
var verified = ecKey.verifySync('hey ho', sig)
async API (supported for all keys)
ecKey.sign('hey ho', function (err, sig) {
// async is supported for all
ecKey.verify('hey ho', function (err, verified) {
// verified is a boolean
})
})
export
var pub = ecKey.exportPublic()
var priv = ecKey.exportPrivate()
pub
{
"curve": "ed25519",
"fingerprint": "de26dffa5dc9e3866ea23d9120578b768b945b1385d8393d275d715470dd6056",
"type": "ec",
"value": "022ee9fefd1b275d4ee1e7c41157cd4753ad4cbd0cbfdc76eef85ebae230bf27ee",
// whatever metadata you added
"purpose": "sign",
"label": "one key to rule them all"
}
priv
{
"curve": "ed25519",
"fingerprint": "de26dffa5dc9e3866ea23d9120578b768b945b1385d8393d275d715470dd6056",
"priv": "01762d59097688a1f1cd241aadee4cb1bd3d37017f71501b28e85ecdab5349c2",
"type": "ec",
"value": "022ee9fefd1b275d4ee1e7c41157cd4753ad4cbd0cbfdc76eef85ebae230bf27ee",
// whatever metadata you added
"purpose": "sign",
"label": "one key to rule them all"
}
import
// recover to typed instance (ECKey/DSAKey/etc.)
var ecKey = kiki.toKey(pub || priv)
Key API
(static) gen(options)
Generate a new key. Different keys may have different required properties (this asymmetry can't be avoided.)
hasDeterministicSig()
Some keys have deterministic signatures - same outputs for the same inputs. Some don't.
parsePub(pubKeyString)
parsePriv(privKeyString)
fingerprint()
pubKeyString()
exportPublic()
exportPrivate()
mock "secure element" API
Simple mock for a "secure element" type API, where you don't have access to the private keys. Give it a public key, an operation and data, and it will perform signing, decrypting, etc.
var kiki = require('kiki').kiki
var secureEl = kiki(privKeys) // setup the mock secure element
secureEl.sign(pubKey, msg, callback)
secureEl.ecdh(ecPubKey1, ecPubKey2, callback)