From 7d3129f80b1b2bc40a77e3e610fe09a412c0e0a8 Mon Sep 17 00:00:00 2001
From: Jake Swenson <jake@jakeswenson.com>
Date: Fri, 24 Jul 2020 18:52:39 -0700
Subject: adding documentation

---
 src/cipherstring.rs | 3 +++
 1 file changed, 3 insertions(+)

(limited to 'src')

diff --git a/src/cipherstring.rs b/src/cipherstring.rs
index 151dea5..7f9ce31 100644
--- a/src/cipherstring.rs
+++ b/src/cipherstring.rs
@@ -67,6 +67,9 @@ impl CipherString {
                 })
             }
             4 | 6 => {
+                // the only difference between 4 and 6 is the HMAC256 signature appended at the end
+                // https://github.com/bitwarden/jslib/blob/785b681f61f81690de6df55159ab07ae710bcfad/src/enums/encryptionType.ts#L8
+                // format is: <cipher_text_b64>|<hmac_sig>
                 let contents = contents.split("|").next().unwrap();
                 let ciphertext = base64::decode(contents)
                     .context(crate::error::InvalidBase64)?;
-- 
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