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1.3 KiB
1.3 KiB
title: ECIES description: Uses ECIES symmetric key negotiation from public keys to encrypt arbitrarily long data streams.
ECIES
Description
Bitcore implements Elliptic Curve Integrated Encryption Scheme (ECIES), which is a public key encryption system that performs bulk encryption on data using a symmetric cipher and a random key.
For more information refer to the bitcore-ecies github repo.
Installation
ECIES is implemented as a separate module and you must add it to your dependencies:
For node projects:
npm install bitcore-ecies --save
For client-side projects:
bower install bitcore-ecies --save
Example
var bitcore = require('bitcore');
var ECIES = require('bitcore-ecies');
var alicePrivateKey = new bitcore.PrivateKey();
var bobPrivateKey = new bitcore.PrivateKey();
var data = new Buffer('The is a raw data example');
// Encrypt data
var cypher1 = ECIES.privateKey(alicePrivateKey).publicKey(bobPrivateKey.publicKey);
var encrypted = cypher.encrypt(data);
// Decrypt data
var cypher2 = ECIES.privateKey(bobPrivateKey).publicKey(alicePrivateKey.publicKey);
var decrypted = cypher.decrypt(encrypted);
assert(data.toString(), decrypted.toString());