exlim/cyberchef
2
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

Fix: Add input validation for XOR Checksum blocksize (#2537) (#2542)

Browse Source
This commit is contained in:
Subhadeep 2026-06-15 18:07:04 +05:30 committed by GitHub
parent 7a28e0534b
commit cc38f3a53f
No known key found for this signature in database
GPG Key ID: B5690EEEBB952194
1 changed files with 10 additions and 3 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

13
src/core/operations/XORChecksum.mjs
View File

@ -7,12 +7,12 @@
import Operation from "../Operation.mjs";
import Utils from "../Utils.mjs";
import { toHex } from "../lib/Hex.mjs";
import OperationError from "../errors/OperationError.mjs";
/**
* XOR Checksum operation
*/
class XORChecksum extends Operation {
/**
* XORChecksum constructor
*/
@ -21,7 +21,8 @@ class XORChecksum extends Operation {
this.name = "XOR Checksum";
this.module = "Crypto";
this.description = "XOR Checksum splits the input into blocks of a configurable size and performs the XOR operation on these blocks.";
this.description =
"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.inputType = "ArrayBuffer";
this.outputType = "string";
@ -29,7 +30,7 @@ class XORChecksum extends Operation {
{
name: "Blocksize",
type: "number",
value: 4
value: 4,
},
];
}
@ -41,6 +42,12 @@ class XORChecksum extends Operation {
*/
run(input, args) {
const blocksize = args[0];
if (!Number.isInteger(blocksize) || blocksize <= 0) {
throw new OperationError("Blocksize must be a positive integer.");
}
input = new Uint8Array(input);
const res = Array(blocksize);