From 8b2a9be02194568c3cfc81a2830859329f712a58 Mon Sep 17 00:00:00 2001
From: Marko Bencun <marko@shiftcrypto.ch>
Date: Fri, 24 Sep 2021 01:25:20 +0200
Subject: [PATCH 1/2] CIP-0003: Fix Ledger algorithm and one wrong test vector

There was a typo in the pseudo code.

The second test vector has an incorrect output, the other two are
correct.

One can verify the test vectors by modifying this line and running the
script:

https://github.com/LedgerHQ/orakolo/blob/0b2d5e669ec61df9a824df9fa1a363060116b490/src/python/orakolo/HDEd25519.py#L467
---
 CIP-0003/Ledger.md | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/CIP-0003/Ledger.md b/CIP-0003/Ledger.md
index afdb2fcd57..32df8e7ed7 100644
--- a/CIP-0003/Ledger.md
+++ b/CIP-0003/Ledger.md
@@ -20,7 +20,7 @@ function generateMasterKey(seed, password) {
     let cc = HMAC
         ( hash=SHA256
         , key="ed25519 seed"
-        , message=UTF8NFKD(1) + seed
+        , message=UTF8NFKD(1) + data
         );
 
     let (iL, iR) = hashRepeatedly(data);
@@ -82,7 +82,7 @@ function tweakBits(data) {
 
   master key
   ```
-  1091f9fd9d2febbb74f08798490d5a5727eacb9aa0316c9eeecf1ff2cb5d8e55bc21db1a20a1d2df9260b49090c35476d25ecefa391baf3231e56699974bdd46652f8e7dd4f2a66032ed48bfdffa4327d371432917ad13909af5c47d0d356beb
+  587c6774357ecbf840d4db6404ff7af016dace0400769751ad2abfc77b9a3844cc71702520ef1a4d1b68b91187787a9b8faab0a9bb6b160de541b6ee62469901fc0beda0975fe4763beabd83b7051a5fd5cbce5b88e82c4bbaca265014e524bd
   ```
 </details>
 

From 85777cb77cae6efa9f8c6cf07c3f07589748da99 Mon Sep 17 00:00:00 2001
From: Marko Bencun <marko@shiftcrypto.ch>
Date: Fri, 24 Sep 2021 01:27:19 +0200
Subject: [PATCH 2/2] CIP-0003: link to a reference implementation by Ledger

---
 CIP-0003/Ledger.md | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/CIP-0003/Ledger.md b/CIP-0003/Ledger.md
index 32df8e7ed7..b78782dbce 100644
--- a/CIP-0003/Ledger.md
+++ b/CIP-0003/Ledger.md
@@ -3,6 +3,8 @@
 - **Deprecated**: no
 - **Summary**: Used by Ledger hardware wallets
 
+Reference implementation by Ledger: [HDEd25519.py](https://github.com/LedgerHQ/orakolo/blob/0b2d5e669ec61df9a824df9fa1a363060116b490/src/python/orakolo/HDEd25519.py)
+
 *Note*: Ledger also allows users to set an additional [passphrase](https://support.ledger.com/hc/en-us/articles/115005214529-Advanced-passphrase-security)
 
 ## Code