Update XORChecksum.mjs

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Subhadeep 2026-06-10 14:47:20 +05:30 committed by GitHub
parent 58fe6df54c
commit 28d7fbaca1
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@ -13,54 +13,54 @@ import OperationError from "../errors/OperationError.mjs"; // 1. Added import fo
* XOR Checksum operation * XOR Checksum operation
*/ */
class XORChecksum extends Operation { class XORChecksum extends Operation {
/** /**
* XORChecksum constructor * XORChecksum constructor
*/ */
constructor() { constructor() {
super(); super();
this.name = "XOR Checksum"; this.name = "XOR Checksum";
this.module = "Crypto"; this.module = "Crypto";
this.description = this.description =
"XOR Checksum splits the input into blocks of a configurable size and performs the XOR operation on these blocks."; "XOR Checksum splits the input into blocks of a configurable size and performs the XOR operation on these blocks.";
this.infoURL = "https://wikipedia.org/wiki/XOR"; this.infoURL = "https://wikipedia.org/wiki/XOR";
this.inputType = "ArrayBuffer"; this.inputType = "ArrayBuffer";
this.outputType = "string"; this.outputType = "string";
this.args = [ this.args = [
{ {
name: "Blocksize", name: "Blocksize",
type: "number", type: "number",
value: 4, value: 4,
}, },
]; ];
}
/**
* @param {ArrayBuffer} input
* @param {Object[]} args
* @returns {string}
*/
run(input, args) {
const blocksize = args[0];
// 2. Added validation check
if (!Number.isInteger(blocksize) || blocksize <= 0) {
throw new OperationError("Blocksize must be a positive integer.");
} }
input = new Uint8Array(input); /**
* @param {ArrayBuffer} input
* @param {Object[]} args
* @returns {string}
*/
run(input, args) {
const blocksize = args[0];
const res = Array(blocksize); // 2. Added validation check
res.fill(0); if (!Number.isInteger(blocksize) || blocksize <= 0) {
throw new OperationError("Blocksize must be a positive integer.");
}
for (const chunk of Utils.chunked(input, blocksize)) { input = new Uint8Array(input);
for (let i = 0; i < blocksize; i++) {
res[i] ^= chunk[i]; const res = Array(blocksize);
} res.fill(0);
for (const chunk of Utils.chunked(input, blocksize)) {
for (let i = 0; i < blocksize; i++) {
res[i] ^= chunk[i];
}
}
return toHex(res, "");
} }
return toHex(res, "");
}
} }
export default XORChecksum; export default XORChecksum;