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

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Subhadeep 2026-06-15 18:07:04 +05:30 committed by GitHub
parent 7a28e0534b
commit cc38f3a53f
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1 changed files with 10 additions and 3 deletions
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13
src/core/operations/XORChecksum.mjs
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@ -7,12 +7,12 @@
import Operation from "../Operation.mjs"; import Operation from "../Operation.mjs";
import Utils from "../Utils.mjs"; import Utils from "../Utils.mjs";
import { toHex } from "../lib/Hex.mjs"; import { toHex } from "../lib/Hex.mjs";
import OperationError from "../errors/OperationError.mjs";
/** /**
* XOR Checksum operation * XOR Checksum operation
*/ */
class XORChecksum extends Operation { class XORChecksum extends Operation {
/** /**
* XORChecksum constructor * XORChecksum constructor
*/ */
@ -21,7 +21,8 @@ class XORChecksum extends Operation {
this.name = "XOR Checksum"; this.name = "XOR Checksum";
this.module = "Crypto"; 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.infoURL = "https://wikipedia.org/wiki/XOR";
this.inputType = "ArrayBuffer"; this.inputType = "ArrayBuffer";
this.outputType = "string"; this.outputType = "string";
@ -29,7 +30,7 @@ class XORChecksum extends Operation {
{ {
name: "Blocksize", name: "Blocksize",
type: "number", type: "number",
value: 4 value: 4,
}, },
]; ];
} }
@ -41,6 +42,12 @@ class XORChecksum extends Operation {
*/ */
run(input, args) { run(input, args) {
const blocksize = args[0]; const blocksize = args[0];
if (!Number.isInteger(blocksize) || blocksize <= 0) {
throw new OperationError("Blocksize must be a positive integer.");
}
input = new Uint8Array(input); input = new Uint8Array(input);
const res = Array(blocksize); const res = Array(blocksize);