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Macide Celik 2019-10-28 00:57:04 +03:00 • committed by GitHub
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src/core/operations/AnalyseHash.mjs
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/**
* @author n1474335 [n1474335@gmail.com]
* @copyright Crown Copyright 2016
* @license Apache-2.0
*/
import Operation from "../Operation.mjs";
import OperationError from "../errors/OperationError.mjs";
/**
* Analyse hash operation
*/
class AnalyseHash extends Operation {
/**
* AnalyseHash constructor
*/
constructor() {
super();
this.name = "Analyse hash";
this.module = "Crypto";
this.description = "Tries to determine information about a given hash and suggests which algorithm may have been used to generate it based on its length.";
this.infoURL = "https://wikipedia.org/wiki/Comparison_of_cryptographic_hash_functions";
this.inputType = "string";
this.outputType = "string";
this.args = [];
}
/**
* @param {string} input
* @param {Object[]} args
* @returns {string}
*/
run(input, args) {
input = input.replace(/\s/g, "");
let output = "",
possibleHashFunctions = [];
const byteLength = input.length / 2,
bitLength = byteLength * 8;
if (!/^[a-f0-9]+$/i.test(input)) {
throw new OperationError("Invalid hash");
}
output += "Hash length: " + input.length + "\n" +
"Byte length: " + byteLength + "\n" +
"Bit length: " + bitLength + "\n\n" +
"Based on the length, this hash could have been generated by one of the following hashing functions:\n";
switch (bitLength) {
case 4:
possibleHashFunctions = [
"Fletcher-4",
"Luhn algorithm",
"Verhoeff algorithm",
];
break;
case 8:
possibleHashFunctions = [
"Fletcher-8",
];
break;
case 16:
possibleHashFunctions = [
"BSD checksum",
"CRC-16",
"SYSV checksum",
"Fletcher-16"
];
break;
case 32:
possibleHashFunctions = [
"CRC-32",
"Fletcher-32",
"Adler-32",
];
break;
case 64:
possibleHashFunctions = [
"CRC-64",
"RIPEMD-64",
"SipHash",
];
break;
case 128:
possibleHashFunctions = [
"MD5",
"MD4",
"MD2",
"HAVAL-128",
"RIPEMD-128",
"Snefru",
"Tiger-128",
];
break;
case 160:
possibleHashFunctions = [
"SHA-1",
"SHA-0",
"FSB-160",
"HAS-160",
"HAVAL-160",
"RIPEMD-160",
"Tiger-160",
];
break;
case 192:
possibleHashFunctions = [
"Tiger",
"HAVAL-192",
];
break;
case 224:
possibleHashFunctions = [
"SHA-224",
"SHA3-224",
"ECOH-224",
"FSB-224",
"HAVAL-224",
];
break;
case 256:
possibleHashFunctions = [
"SHA-256",
"SHA3-256",
"BLAKE-256",
"ECOH-256",
"FSB-256",
"GOST",
"Grøstl-256",
"HAVAL-256",
"PANAMA",
"RIPEMD-256",
"Snefru",
];
break;
case 320:
possibleHashFunctions = [
"RIPEMD-320",
];
break;
case 384:
possibleHashFunctions = [
"SHA-384",
"SHA3-384",
"ECOH-384",
"FSB-384",
];
break;
case 512:
possibleHashFunctions = [
"SHA-512",
"SHA3-512",
"BLAKE-512",
"ECOH-512",
"FSB-512",
"Grøstl-512",
"JH",
"MD6",
"Spectral Hash",
"SWIFFT",
"Whirlpool",
];
break;
case 1024:
possibleHashFunctions = [
"Fowler-Noll-Vo",
];
break;
default:
possibleHashFunctions = [
"Unknown"
];
break;
}
return output + possibleHashFunctions.join("\n");
}
}
export default AnalyseHash;