From 51b1a6769a9932db63fbda261e230dcbd9df3aba Mon Sep 17 00:00:00 2001
From: Janis Erdmanis <janiserdmanis@protonmail.ch>
Date: Wed, 30 Oct 2024 22:44:24 +0200
Subject: [PATCH] fixing bitlength at zero

---
 Project.toml     | 2 +-
 src/CryptoPRG.jl | 5 +++++
 2 files changed, 6 insertions(+), 1 deletion(-)

diff --git a/Project.toml b/Project.toml
index 764a7d6..380b472 100644
--- a/Project.toml
+++ b/Project.toml
@@ -1,7 +1,7 @@
 name = "CryptoPRG"
 uuid = "d846c407-34c1-46cb-aa27-d51818cc05e2"
 authors = ["Janis Erdmanis <janiserdmanis@protonmail.ch>"]
-version = "0.1.1"
+version = "0.1.2"
 
 [deps]
 Nettle = "49dea1ee-f6fa-5aa6-9a11-8816cee7d4b9"
diff --git a/src/CryptoPRG.jl b/src/CryptoPRG.jl
index a4dff2e..75094a9 100644
--- a/src/CryptoPRG.jl
+++ b/src/CryptoPRG.jl
@@ -37,6 +37,10 @@ end
 
 function bitlength(p::BigInt) 
 
+    if p == 0
+        return 1
+    end
+
     # A dublicate is in CryptoGroups
     # It is an implementation detail within the context of package
     function _int2bytes(x::Integer)
@@ -51,6 +55,7 @@ function bitlength(p::BigInt)
     bytes = _int2bytes(p)
     bits = bitstring(bytes[end])
     start = findfirst(x -> x == '1', bits)
+
     N = length(bytes) * 8  - (start - 1)
 
     return N