From f349654eabb4026f1dd0c01b8db1737d0cd2a383 Mon Sep 17 00:00:00 2001
From: Ivan <admin@clab.hr>
Date: Wed, 24 May 2023 09:39:15 +0200
Subject: [PATCH] Add support for appending attributes to KeyInfo element

---
 index.d.ts        | 1 +
 lib/signed-xml.js | 8 +++++++-
 2 files changed, 8 insertions(+), 1 deletion(-)

diff --git a/index.d.ts b/index.d.ts
index 2166a10a..29850ee8 100644
--- a/index.d.ts
+++ b/index.d.ts
@@ -79,6 +79,7 @@ export class SignedXml {
 export interface KeyInfo {
     getKey(keyInfo?: Node[] | null): Buffer;
     getKeyInfo(key?: string, prefix?: string): string;
+    attrs?: {[key: string]: any} | undefined;
 }
 
 export class FileKeyInfo implements KeyInfo {
diff --git a/lib/signed-xml.js b/lib/signed-xml.js
index f582bb19..d1c13ff5 100644
--- a/lib/signed-xml.js
+++ b/lib/signed-xml.js
@@ -845,7 +845,13 @@ SignedXml.prototype.getKeyInfo = function(prefix) {
   currentPrefix = currentPrefix ? currentPrefix + ':' : currentPrefix
 
   if (this.keyInfoProvider) {
-    res += "<" + currentPrefix + "KeyInfo>"
+    var keyInfoAttrs = ""
+    if (this.keyInfoProvider.attrs) {
+      Object.keys(this.keyInfoProvider.attrs).forEach((name) => {
+        keyInfoAttrs += " " + name + "=\"" + this.keyInfoProvider.attrs[name] + "\""
+      })
+    }
+    res += "<" + currentPrefix + "KeyInfo" + keyInfoAttrs + ">"
     res += this.keyInfoProvider.getKeyInfo(this.signingCert || this.signingKey, prefix)
     res += "</" + currentPrefix + "KeyInfo>"
   }