Update nitrokey crate to 0.2.3

This change updates the nitrokey crate to version 0.2.3. This version
bumps the rand crate used to 0.6.1, which in turn requires an additional
set of dependencies.

Import subrepo nitrokey/:nitrokey at b3e2adc5bb1300441ca74cc7672617c042f3ea31
Import subrepo rand/:rand at 73613ff903512e9503e41cc8ba9eae76269dc598
Import subrepo rustc_version/:rustc_version at 0294f2ba2018bf7be672abd53db351ce5055fa02
Import subrepo semver-parser/:semver-parser at 750da9b11a04125231b1fb293866ca036845acee
Import subrepo semver/:semver at 5eb6db94fa03f4d5c64a625a56188f496be47598

1 files changed, 48 insertions, 0 deletions

diff --git a/rand/rand_pcg/src/lib.rs b/rand/rand_pcg/src/lib.rs
new file mode 100644
index 0000000..5160e87
--- /dev/null
+++ b/rand/rand_pcg/src/lib.rs
@@ -0,0 +1,48 @@
+// Copyright 2018 Developers of the Rand project.
+//
+// Licensed under the Apache License, Version 2.0 <LICENSE-APACHE or
+// https://www.apache.org/licenses/LICENSE-2.0> or the MIT license
+// <LICENSE-MIT or https://opensource.org/licenses/MIT>, at your
+// option. This file may not be copied, modified, or distributed
+// except according to those terms.
+
+//! The PCG random number generators.
+//!
+//! This is a native Rust implementation of a small selection of PCG generators.
+//! The primary goal of this crate is simple, minimal, well-tested code; in
+//! other words it is explicitly not a goal to re-implement all of PCG.
+//!
+//! This crate provides:
+//!
+//! -   `Pcg32` aka `Lcg64Xsh32`, officially known as `pcg32`, a general
+//!     purpose RNG. This is a good choice on both 32-bit and 64-bit CPUs
+//!     (for 32-bit output).
+//! -   `Pcg64Mcg` aka `Mcg128Xsl64`, officially known as `mcg_xsl_rr_128_64`,
+//!     a general purpose RNG using 128-bit multiplications. This has poor
+//!     performance on 32-bit CPUs but is a good choice on 64-bit CPUs for
+//!     both 32-bit and 64-bit output. (Note: this RNG is only available using
+//!     Rust 1.26 or later.)
+//!
+//! Both of these use 16 bytes of state and 128-bit seeds, and are considered
+//! value-stable (i.e. any change affecting the output given a fixed seed would
+//! be considered a breaking change to the crate).
+
+#![doc(html_logo_url = "https://www.rust-lang.org/logos/rust-logo-128x128-blk.png",
+       html_favicon_url = "https://www.rust-lang.org/favicon.ico",
+       html_root_url = "https://rust-random.github.io/rand/")]
+
+#![deny(missing_docs)]
+#![deny(missing_debug_implementations)]
+
+#![no_std]
+
+extern crate rand_core;
+
+#[cfg(feature="serde1")] extern crate serde;
+#[cfg(feature="serde1")] #[macro_use] extern crate serde_derive;
+
+mod pcg64;
+#[cfg(rust_1_26)] mod pcg128;
+
+pub use self::pcg64::{Pcg32, Lcg64Xsh32};
+#[cfg(rust_1_26)] pub use self::pcg128::{Pcg64Mcg, Mcg128Xsl64};