From 74585c7c59df39cdea39c5440b2f318fe0579d7f Mon Sep 17 00:00:00 2001
From: Jonas Jenwald <jonas.jenwald@gmail.com>
Date: Sun, 23 Apr 2023 10:13:46 +0200
Subject: [PATCH] Remove the unused `PDF20.hash` method

This method was added in PR 4938, almost nine years ago, however it doesn't appear to ever have been used.
Given the similarities between the `PDF17` and `PDF20` classes, and how they're used, if the `PDF20.hash` method was actually necessary you'd also expect a similiar method in the `PDF17` class.
---
 src/core/crypto.js | 4 ----
 1 file changed, 4 deletions(-)

diff --git a/src/core/crypto.js b/src/core/crypto.js
index 0cd5b7ade..c8e6f2bc9 100644
--- a/src/core/crypto.js
+++ b/src/core/crypto.js
@@ -1321,10 +1321,6 @@ class PDF20 {
     return k.subarray(0, 32);
   }
 
-  hash(password, concatBytes, userBytes) {
-    return this._hash(password, concatBytes, userBytes);
-  }
-
   checkOwnerPassword(password, ownerValidationSalt, userBytes, ownerPassword) {
     const hashData = new Uint8Array(password.length + 56);
     hashData.set(password, 0);