From 23d188fc1d87c33296c36445f2c0fc0dbf3f533e Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Tobias=20Nie=C3=9Fen?= <tniessen@tnie.de>
Date: Wed, 3 Nov 2021 17:14:55 +0100
Subject: [PATCH] doc: clarify getAuthTag with authTagLength

Refs: https://github.com/nodejs/node/issues/40272
Refs: https://github.com/nodejs/node/pull/20235

PR-URL: https://github.com/nodejs/node/pull/40713
Reviewed-By: Rich Trott <rtrott@gmail.com>
Reviewed-By: Filip Skokan <panva.ip@gmail.com>
Reviewed-By: Luigi Pinca <luigipinca@gmail.com>
---
 doc/api/crypto.md | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/doc/api/crypto.md b/doc/api/crypto.md
index 93d13e9850f857..eb0f416a4f8cb4 100644
--- a/doc/api/crypto.md
+++ b/doc/api/crypto.md
@@ -551,6 +551,9 @@ added: v1.0.0
 The `cipher.getAuthTag()` method should only be called after encryption has
 been completed using the [`cipher.final()`][] method.
 
+If the `authTagLength` option was set during the `cipher` instance's creation,
+this function will return exactly `authTagLength` bytes.
+
 ### `cipher.setAAD(buffer[, options])`
 
 <!-- YAML