Mirror/CyberChef
1
0
Fork 0
mirror of https://github.com/gchq/CyberChef.git synced 2024-11-01 05:31:01 +01:00
Code Issues Packages Projects Releases Wiki Activity

Added message format arg to RSA Verify operation

Browse Source
This commit is contained in:
n1474335 2024-10-23 16:02:08 +01:00
parent d3adfc7c3e
commit 47c85a105d
No known key found for this signature in database
GPG Key ID: D15457B7B4AF3F37
1 changed files with 9 additions and 2 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

11
src/core/operations/RSAVerify.mjs
View File

@ -8,6 +8,7 @@ import Operation from "../Operation.mjs";
import OperationError from "../errors/OperationError.mjs";
import forge from "node-forge";
import { MD_ALGORITHMS } from "../lib/RSA.mjs";
import Utils from "../Utils.mjs";
/**
* RSA Verify operation
@ -37,6 +38,11 @@ class RSAVerify extends Operation {
type: "text",
value: ""
},
{
name: "Message format",
type: "option",
value: ["Raw", "Hex", "Base64"]
},
{
name: "Message Digest Algorithm",
type: "option",
@ -51,7 +57,7 @@ class RSAVerify extends Operation {
* @returns {string}
*/
run(input, args) {
const [pemKey, message, mdAlgo] = args;
const [pemKey, message, format, mdAlgo] = args;
if (pemKey.replace("-----BEGIN RSA PUBLIC KEY-----", "").length === 0) {
throw new OperationError("Please enter a public key.");
}
@ -60,7 +66,8 @@ class RSAVerify extends Operation {
const pubKey = forge.pki.publicKeyFromPem(pemKey);
// Generate message digest
const md = MD_ALGORITHMS[mdAlgo].create();
md.update(message, "raw");
const messageStr = Utils.convertToByteString(message, format);
md.update(messageStr, "raw");
// Compare signed message digest and generated message digest
const result = pubKey.verify(md.digest().bytes(), input);
return result ? "Verified OK" : "Verification Failure";