From 6f72928b8ba5325ca983a1c1e3ab382aba4b15a8 Mon Sep 17 00:00:00 2001
From: Stepan Snigirev <snigirev.stepan@gmail.com>
Date: Tue, 21 Dec 2021 20:54:13 +0100
Subject: [PATCH] remove currency byte leftovers

---
 LNURLPoS/LNURLPoS.ino | 5 ++---
 1 file changed, 2 insertions(+), 3 deletions(-)

diff --git a/LNURLPoS/LNURLPoS.ino b/LNURLPoS/LNURLPoS.ino
index cedd776..71b1d45 100644
--- a/LNURLPoS/LNURLPoS.ino
+++ b/LNURLPoS/LNURLPoS.ino
@@ -407,14 +407,13 @@ int xor_encrypt(uint8_t * output, size_t outlen, uint8_t * key, size_t keylen, u
   cur++;
   memcpy(output+cur, nonce, nonce_len);
   cur += nonce_len;
-  // payload, unxored first - <pin><currency byte><amount>
-  int payload_len = lenVarInt(pin) + 1 + lenVarInt(amount_in_cents);
+  // payload, unxored first - <pin><amount>
+  int payload_len = lenVarInt(pin) + lenVarInt(amount_in_cents);
   output[cur] = (uint8_t)payload_len;
   cur++;
   uint8_t * payload = output+cur; // pointer to the start of the payload
   cur += writeVarInt(pin, output+cur, outlen-cur); // pin code
   cur += writeVarInt(amount_in_cents, output+cur, outlen-cur); // amount
-  cur++;
   // xor it with round key
   uint8_t hmacresult[32];
   SHA256 h;