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23 lines
678 B
23 lines
678 B
'use strict';
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var crypto = require('crypto');
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var ECIES = require('./common/ECIES');
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ECIES.symmetricEncrypt = function(key, iv, message) {
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var cipheriv = crypto.createCipheriv('AES-256-CBC', key, iv);
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var a = cipheriv.update(message);
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var b = cipheriv.final();
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var r = Buffer.concat([iv, a, b]);
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return r;
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};
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ECIES.symmetricDecrypt = function(key, encrypted) {
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var iv = encrypted.slice(0, 16);
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var decipheriv = crypto.createDecipheriv('AES-256-CBC', key, iv);
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var todecrypt = encrypted.slice(16, encrypted.length);
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var a = decipheriv.update(todecrypt);
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var b = decipheriv.final();
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var r = Buffer.concat([a, b]);
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return r;
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};
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module.exports = (ECIES);
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