CyberChef/src/core/operations/ParseASN1HexString.mjs

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2018-05-28 00:53:43 +02:00
/**
* @author n1474335 [n1474335@gmail.com]
* @copyright Crown Copyright 2016
* @license Apache-2.0
*/
import r from "jsrsasign";
import Operation from "../Operation.mjs";
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/**
* Parse ASN.1 hex string operation
*/
class ParseASN1HexString extends Operation {
/**
* ParseASN1HexString constructor
*/
constructor() {
super();
this.name = "Parse ASN.1 hex string";
this.module = "PublicKey";
this.description = "Abstract Syntax Notation One (ASN.1) is a standard and notation that describes rules and structures for representing, encoding, transmitting, and decoding data in telecommunications and computer networking.<br><br>This operation parses arbitrary ASN.1 data and presents the resulting tree.";
this.infoURL = "https://wikipedia.org/wiki/Abstract_Syntax_Notation_One";
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this.inputType = "string";
this.outputType = "string";
this.args = [
{
"name": "Starting index",
"type": "number",
"value": 0
},
{
"name": "Truncate octet strings longer than",
"type": "number",
"value": 32
}
];
}
/**
* @param {string} input
* @param {Object[]} args
* @returns {string}
*/
run(input, args) {
const [index, truncateLen] = args;
return r.ASN1HEX.dump(input.replace(/\s/g, "").toLowerCase(), {
"ommit_long_octet": truncateLen
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}, index);
}
}
export default ParseASN1HexString;