From 4e430a735dcc079830e72a45691f39d322bbbe07 Mon Sep 17 00:00:00 2001
From: Robin Krahl <robin.krahl@ireas.org>
Date: Sun, 16 Dec 2018 17:13:28 +0000
Subject: Update to rand v0.6

This patch updates the rand dependecy to version 0.6.  It also replaces
the OsRng, which is guaranteed to use OS/hardware entropy, with the
thread_rng, which is likely to use OS/hardware entropy as a seed.  The
choice of RNG and the handling of password should be reviewed at a later
point.
---
 src/util.rs | 13 ++++---------
 1 file changed, 4 insertions(+), 9 deletions(-)

(limited to 'src')

diff --git a/src/util.rs b/src/util.rs
index 2a75634..d98e675 100644
--- a/src/util.rs
+++ b/src/util.rs
@@ -1,11 +1,10 @@
-use libc::{c_void, free};
-use nitrokey_sys;
-use rand::{OsRng, Rng};
-use std;
 use std::ffi::{CStr, CString};
 use std::fmt;
 use std::os::raw::{c_char, c_int};
 
+use libc::{c_void, free};
+use rand::Rng;
+
 /// Error types returned by Nitrokey device or by the library.
 #[derive(Debug, PartialEq)]
 pub enum CommandError {
@@ -101,12 +100,8 @@ pub fn get_last_error() -> CommandError {
 }
 
 pub fn generate_password(length: usize) -> std::io::Result<Vec<u8>> {
-    let mut rng = match OsRng::new() {
-        Ok(rng) => rng,
-        Err(err) => return Err(err),
-    };
     let mut data = vec![0u8; length];
-    rng.fill_bytes(&mut data[..]);
+    rand::thread_rng().fill(&mut data[..]);
     return Ok(data);
 }
 
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