From 24a4478b5c1056cce0dee9bc11958abe406a34f9 Mon Sep 17 00:00:00 2001
From: Stepan Fedorko-Bartos <step7750@gmail.com>
Date: Thu, 15 Nov 2018 18:34:17 -0700
Subject: [PATCH 1/9] Adds yubico-rs library dep

---
 Cargo.lock | 309 +++++++++++++++++++++++++++++++++++++++++++++++++++++
 Cargo.toml |   3 +
 2 files changed, 312 insertions(+)

diff --git a/Cargo.lock b/Cargo.lock
index 0d29f26..c5df225 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -81,6 +81,24 @@ dependencies = [
  "safemem 0.3.0 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
+[[package]]
+name = "bit-set"
+version = "0.2.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+dependencies = [
+ "bit-vec 0.5.0 (registry+https://github.com/rust-lang/crates.io-index)",
+]
+
+[[package]]
+name = "bit-vec"
+version = "0.5.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+
+[[package]]
+name = "bitflags"
+version = "0.9.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+
 [[package]]
 name = "bitflags"
 version = "1.0.4"
@@ -119,6 +137,7 @@ dependencies = [
  "u2f 0.1.2 (git+https://github.com/wisespace-io/u2f-rs?rev=193de35093a44)",
  "uuid 0.7.1 (registry+https://github.com/rust-lang/crates.io-index)",
  "ws 0.7.8 (registry+https://github.com/rust-lang/crates.io-index)",
+ "yubico 0.4.0 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
 [[package]]
@@ -218,6 +237,15 @@ dependencies = [
  "url 1.7.1 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
+[[package]]
+name = "core-foundation"
+version = "0.2.3"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+dependencies = [
+ "core-foundation-sys 0.2.3 (registry+https://github.com/rust-lang/crates.io-index)",
+ "libc 0.2.43 (registry+https://github.com/rust-lang/crates.io-index)",
+]
+
 [[package]]
 name = "core-foundation"
 version = "0.5.1"
@@ -227,6 +255,14 @@ dependencies = [
  "libc 0.2.43 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
+[[package]]
+name = "core-foundation-sys"
+version = "0.2.3"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+dependencies = [
+ "libc 0.2.43 (registry+https://github.com/rust-lang/crates.io-index)",
+]
+
 [[package]]
 name = "core-foundation-sys"
 version = "0.5.1"
@@ -629,6 +665,31 @@ dependencies = [
  "url 1.7.1 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
+[[package]]
+name = "hyper"
+version = "0.11.27"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+dependencies = [
+ "base64 0.9.3 (registry+https://github.com/rust-lang/crates.io-index)",
+ "bytes 0.4.10 (registry+https://github.com/rust-lang/crates.io-index)",
+ "futures 0.1.24 (registry+https://github.com/rust-lang/crates.io-index)",
+ "futures-cpupool 0.1.8 (registry+https://github.com/rust-lang/crates.io-index)",
+ "httparse 1.3.3 (registry+https://github.com/rust-lang/crates.io-index)",
+ "iovec 0.1.2 (registry+https://github.com/rust-lang/crates.io-index)",
+ "language-tags 0.2.2 (registry+https://github.com/rust-lang/crates.io-index)",
+ "log 0.4.5 (registry+https://github.com/rust-lang/crates.io-index)",
+ "mime 0.3.9 (registry+https://github.com/rust-lang/crates.io-index)",
+ "net2 0.2.33 (registry+https://github.com/rust-lang/crates.io-index)",
+ "percent-encoding 1.0.1 (registry+https://github.com/rust-lang/crates.io-index)",
+ "relay 0.1.1 (registry+https://github.com/rust-lang/crates.io-index)",
+ "time 0.1.40 (registry+https://github.com/rust-lang/crates.io-index)",
+ "tokio-core 0.1.17 (registry+https://github.com/rust-lang/crates.io-index)",
+ "tokio-io 0.1.9 (registry+https://github.com/rust-lang/crates.io-index)",
+ "tokio-service 0.1.0 (registry+https://github.com/rust-lang/crates.io-index)",
+ "unicase 2.1.0 (registry+https://github.com/rust-lang/crates.io-index)",
+ "want 0.0.4 (registry+https://github.com/rust-lang/crates.io-index)",
+]
+
 [[package]]
 name = "hyper"
 version = "0.12.11"
@@ -664,6 +725,20 @@ dependencies = [
  "webpki-roots 0.11.0 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
+[[package]]
+name = "hyper-tls"
+version = "0.1.4"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+dependencies = [
+ "futures 0.1.24 (registry+https://github.com/rust-lang/crates.io-index)",
+ "hyper 0.11.27 (registry+https://github.com/rust-lang/crates.io-index)",
+ "native-tls 0.1.5 (registry+https://github.com/rust-lang/crates.io-index)",
+ "tokio-core 0.1.17 (registry+https://github.com/rust-lang/crates.io-index)",
+ "tokio-io 0.1.9 (registry+https://github.com/rust-lang/crates.io-index)",
+ "tokio-service 0.1.0 (registry+https://github.com/rust-lang/crates.io-index)",
+ "tokio-tls 0.1.4 (registry+https://github.com/rust-lang/crates.io-index)",
+]
+
 [[package]]
 name = "hyper-tls"
 version = "0.3.1"
@@ -836,6 +911,25 @@ dependencies = [
  "vcpkg 0.2.6 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
+[[package]]
+name = "libusb"
+version = "0.2.2"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+dependencies = [
+ "bit-set 0.2.0 (registry+https://github.com/rust-lang/crates.io-index)",
+ "libc 0.2.43 (registry+https://github.com/rust-lang/crates.io-index)",
+ "libusb-sys 0.2.3 (registry+https://github.com/rust-lang/crates.io-index)",
+]
+
+[[package]]
+name = "libusb-sys"
+version = "0.2.3"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+dependencies = [
+ "libc 0.2.43 (registry+https://github.com/rust-lang/crates.io-index)",
+ "pkg-config 0.3.14 (registry+https://github.com/rust-lang/crates.io-index)",
+]
+
 [[package]]
 name = "lock_api"
 version = "0.1.4"
@@ -1030,6 +1124,20 @@ dependencies = [
  "rustc-serialize 0.3.24 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
+[[package]]
+name = "native-tls"
+version = "0.1.5"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+dependencies = [
+ "lazy_static 0.2.11 (registry+https://github.com/rust-lang/crates.io-index)",
+ "libc 0.2.43 (registry+https://github.com/rust-lang/crates.io-index)",
+ "openssl 0.9.24 (registry+https://github.com/rust-lang/crates.io-index)",
+ "schannel 0.1.14 (registry+https://github.com/rust-lang/crates.io-index)",
+ "security-framework 0.1.16 (registry+https://github.com/rust-lang/crates.io-index)",
+ "security-framework-sys 0.1.16 (registry+https://github.com/rust-lang/crates.io-index)",
+ "tempdir 0.3.7 (registry+https://github.com/rust-lang/crates.io-index)",
+]
+
 [[package]]
 name = "native-tls"
 version = "0.2.1"
@@ -1140,6 +1248,18 @@ dependencies = [
  "sha2 0.5.3 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
+[[package]]
+name = "openssl"
+version = "0.9.24"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+dependencies = [
+ "bitflags 0.9.1 (registry+https://github.com/rust-lang/crates.io-index)",
+ "foreign-types 0.3.2 (registry+https://github.com/rust-lang/crates.io-index)",
+ "lazy_static 1.1.0 (registry+https://github.com/rust-lang/crates.io-index)",
+ "libc 0.2.43 (registry+https://github.com/rust-lang/crates.io-index)",
+ "openssl-sys 0.9.36 (registry+https://github.com/rust-lang/crates.io-index)",
+]
+
 [[package]]
 name = "openssl"
 version = "0.10.12"
@@ -1348,6 +1468,16 @@ dependencies = [
  "scheduled-thread-pool 0.2.0 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
+[[package]]
+name = "rand"
+version = "0.3.22"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+dependencies = [
+ "fuchsia-zircon 0.3.3 (registry+https://github.com/rust-lang/crates.io-index)",
+ "libc 0.2.43 (registry+https://github.com/rust-lang/crates.io-index)",
+ "rand 0.4.3 (registry+https://github.com/rust-lang/crates.io-index)",
+]
+
 [[package]]
 name = "rand"
 version = "0.4.3"
@@ -1447,6 +1577,14 @@ dependencies = [
  "ucd-util 0.1.1 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
+[[package]]
+name = "relay"
+version = "0.1.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+dependencies = [
+ "futures 0.1.24 (registry+https://github.com/rust-lang/crates.io-index)",
+]
+
 [[package]]
 name = "remove_dir_all"
 version = "0.5.1"
@@ -1455,6 +1593,30 @@ dependencies = [
  "winapi 0.3.6 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
+[[package]]
+name = "reqwest"
+version = "0.8.8"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+dependencies = [
+ "bytes 0.4.10 (registry+https://github.com/rust-lang/crates.io-index)",
+ "encoding_rs 0.8.8 (registry+https://github.com/rust-lang/crates.io-index)",
+ "futures 0.1.24 (registry+https://github.com/rust-lang/crates.io-index)",
+ "hyper 0.11.27 (registry+https://github.com/rust-lang/crates.io-index)",
+ "hyper-tls 0.1.4 (registry+https://github.com/rust-lang/crates.io-index)",
+ "libflate 0.1.18 (registry+https://github.com/rust-lang/crates.io-index)",
+ "log 0.4.5 (registry+https://github.com/rust-lang/crates.io-index)",
+ "mime_guess 2.0.0-alpha.6 (registry+https://github.com/rust-lang/crates.io-index)",
+ "native-tls 0.1.5 (registry+https://github.com/rust-lang/crates.io-index)",
+ "serde 1.0.79 (registry+https://github.com/rust-lang/crates.io-index)",
+ "serde_json 1.0.31 (registry+https://github.com/rust-lang/crates.io-index)",
+ "serde_urlencoded 0.5.3 (registry+https://github.com/rust-lang/crates.io-index)",
+ "tokio-core 0.1.17 (registry+https://github.com/rust-lang/crates.io-index)",
+ "tokio-io 0.1.9 (registry+https://github.com/rust-lang/crates.io-index)",
+ "tokio-tls 0.1.4 (registry+https://github.com/rust-lang/crates.io-index)",
+ "url 1.7.1 (registry+https://github.com/rust-lang/crates.io-index)",
+ "uuid 0.6.5 (registry+https://github.com/rust-lang/crates.io-index)",
+]
+
 [[package]]
 name = "reqwest"
 version = "0.9.2"
@@ -1559,6 +1721,18 @@ dependencies = [
  "serde_json 1.0.31 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
+[[package]]
+name = "rust-crypto"
+version = "0.2.36"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+dependencies = [
+ "gcc 0.3.54 (registry+https://github.com/rust-lang/crates.io-index)",
+ "libc 0.2.43 (registry+https://github.com/rust-lang/crates.io-index)",
+ "rand 0.3.22 (registry+https://github.com/rust-lang/crates.io-index)",
+ "rustc-serialize 0.3.24 (registry+https://github.com/rust-lang/crates.io-index)",
+ "time 0.1.40 (registry+https://github.com/rust-lang/crates.io-index)",
+]
+
 [[package]]
 name = "rustc-demangle"
 version = "0.1.9"
@@ -1627,11 +1801,27 @@ dependencies = [
  "antidote 1.0.0 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
+[[package]]
+name = "scoped-tls"
+version = "0.1.2"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+
 [[package]]
 name = "scopeguard"
 version = "0.3.3"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 
+[[package]]
+name = "security-framework"
+version = "0.1.16"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+dependencies = [
+ "core-foundation 0.2.3 (registry+https://github.com/rust-lang/crates.io-index)",
+ "core-foundation-sys 0.2.3 (registry+https://github.com/rust-lang/crates.io-index)",
+ "libc 0.2.43 (registry+https://github.com/rust-lang/crates.io-index)",
+ "security-framework-sys 0.1.16 (registry+https://github.com/rust-lang/crates.io-index)",
+]
+
 [[package]]
 name = "security-framework"
 version = "0.2.1"
@@ -1643,6 +1833,15 @@ dependencies = [
  "security-framework-sys 0.2.1 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
+[[package]]
+name = "security-framework-sys"
+version = "0.1.16"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+dependencies = [
+ "core-foundation-sys 0.2.3 (registry+https://github.com/rust-lang/crates.io-index)",
+ "libc 0.2.43 (registry+https://github.com/rust-lang/crates.io-index)",
+]
+
 [[package]]
 name = "security-framework-sys"
 version = "0.2.1"
@@ -1872,6 +2071,14 @@ dependencies = [
  "lazy_static 1.1.0 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
+[[package]]
+name = "threadpool"
+version = "1.7.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+dependencies = [
+ "num_cpus 1.8.0 (registry+https://github.com/rust-lang/crates.io-index)",
+]
+
 [[package]]
 name = "time"
 version = "0.1.40"
@@ -1926,6 +2133,24 @@ dependencies = [
  "tokio-io 0.1.9 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
+[[package]]
+name = "tokio-core"
+version = "0.1.17"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+dependencies = [
+ "bytes 0.4.10 (registry+https://github.com/rust-lang/crates.io-index)",
+ "futures 0.1.24 (registry+https://github.com/rust-lang/crates.io-index)",
+ "iovec 0.1.2 (registry+https://github.com/rust-lang/crates.io-index)",
+ "log 0.4.5 (registry+https://github.com/rust-lang/crates.io-index)",
+ "mio 0.6.16 (registry+https://github.com/rust-lang/crates.io-index)",
+ "scoped-tls 0.1.2 (registry+https://github.com/rust-lang/crates.io-index)",
+ "tokio 0.1.11 (registry+https://github.com/rust-lang/crates.io-index)",
+ "tokio-executor 0.1.5 (registry+https://github.com/rust-lang/crates.io-index)",
+ "tokio-io 0.1.9 (registry+https://github.com/rust-lang/crates.io-index)",
+ "tokio-reactor 0.1.6 (registry+https://github.com/rust-lang/crates.io-index)",
+ "tokio-timer 0.2.7 (registry+https://github.com/rust-lang/crates.io-index)",
+]
+
 [[package]]
 name = "tokio-current-thread"
 version = "0.1.3"
@@ -1980,6 +2205,14 @@ dependencies = [
  "tokio-io 0.1.9 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
+[[package]]
+name = "tokio-service"
+version = "0.1.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+dependencies = [
+ "futures 0.1.24 (registry+https://github.com/rust-lang/crates.io-index)",
+]
+
 [[package]]
 name = "tokio-tcp"
 version = "0.1.2"
@@ -2018,6 +2251,17 @@ dependencies = [
  "tokio-executor 0.1.5 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
+[[package]]
+name = "tokio-tls"
+version = "0.1.4"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+dependencies = [
+ "futures 0.1.24 (registry+https://github.com/rust-lang/crates.io-index)",
+ "native-tls 0.1.5 (registry+https://github.com/rust-lang/crates.io-index)",
+ "tokio-core 0.1.17 (registry+https://github.com/rust-lang/crates.io-index)",
+ "tokio-io 0.1.9 (registry+https://github.com/rust-lang/crates.io-index)",
+]
+
 [[package]]
 name = "tokio-udp"
 version = "0.1.2"
@@ -2061,6 +2305,11 @@ name = "traitobject"
 version = "0.1.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 
+[[package]]
+name = "try-lock"
+version = "0.1.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+
 [[package]]
 name = "try-lock"
 version = "0.2.2"
@@ -2190,6 +2439,15 @@ name = "utf8-ranges"
 version = "1.0.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 
+[[package]]
+name = "uuid"
+version = "0.6.5"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+dependencies = [
+ "cfg-if 0.1.5 (registry+https://github.com/rust-lang/crates.io-index)",
+ "rand 0.4.3 (registry+https://github.com/rust-lang/crates.io-index)",
+]
+
 [[package]]
 name = "uuid"
 version = "0.7.1"
@@ -2213,6 +2471,16 @@ name = "void"
 version = "1.0.2"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 
+[[package]]
+name = "want"
+version = "0.0.4"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+dependencies = [
+ "futures 0.1.24 (registry+https://github.com/rust-lang/crates.io-index)",
+ "log 0.4.5 (registry+https://github.com/rust-lang/crates.io-index)",
+ "try-lock 0.1.0 (registry+https://github.com/rust-lang/crates.io-index)",
+]
+
 [[package]]
 name = "want"
 version = "0.0.6"
@@ -2319,6 +2587,21 @@ name = "yansi"
 version = "0.4.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 
+[[package]]
+name = "yubico"
+version = "0.4.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+dependencies = [
+ "base64 0.9.3 (registry+https://github.com/rust-lang/crates.io-index)",
+ "bitflags 1.0.4 (registry+https://github.com/rust-lang/crates.io-index)",
+ "libusb 0.2.2 (registry+https://github.com/rust-lang/crates.io-index)",
+ "rand 0.4.3 (registry+https://github.com/rust-lang/crates.io-index)",
+ "reqwest 0.8.8 (registry+https://github.com/rust-lang/crates.io-index)",
+ "rust-crypto 0.2.36 (registry+https://github.com/rust-lang/crates.io-index)",
+ "threadpool 1.7.1 (registry+https://github.com/rust-lang/crates.io-index)",
+ "url 1.7.1 (registry+https://github.com/rust-lang/crates.io-index)",
+]
+
 [metadata]
 "checksum adler32 1.0.3 (registry+https://github.com/rust-lang/crates.io-index)" = "7e522997b529f05601e05166c07ed17789691f562762c7f3b987263d2dedee5c"
 "checksum aho-corasick 0.6.8 (registry+https://github.com/rust-lang/crates.io-index)" = "68f56c7353e5a9547cbd76ed90f7bb5ffc3ba09d4ea9bd1d8c06c8b1142eeb5a"
@@ -2331,6 +2614,9 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 "checksum base64 0.5.2 (registry+https://github.com/rust-lang/crates.io-index)" = "30e93c03064e7590d0466209155251b90c22e37fab1daf2771582598b5827557"
 "checksum base64 0.6.0 (registry+https://github.com/rust-lang/crates.io-index)" = "96434f987501f0ed4eb336a411e0631ecd1afa11574fe148587adc4ff96143c9"
 "checksum base64 0.9.3 (registry+https://github.com/rust-lang/crates.io-index)" = "489d6c0ed21b11d038c31b6ceccca973e65d73ba3bd8ecb9a2babf5546164643"
+"checksum bit-set 0.2.0 (registry+https://github.com/rust-lang/crates.io-index)" = "e6e1e6fb1c9e3d6fcdec57216a74eaa03e41f52a22f13a16438251d8e88b89da"
+"checksum bit-vec 0.5.0 (registry+https://github.com/rust-lang/crates.io-index)" = "4440d5cb623bb7390ae27fec0bb6c61111969860f8e3ae198bfa0663645e67cf"
+"checksum bitflags 0.9.1 (registry+https://github.com/rust-lang/crates.io-index)" = "4efd02e230a02e18f92fc2735f44597385ed02ad8f831e7c1c1156ee5e1ab3a5"
 "checksum bitflags 1.0.4 (registry+https://github.com/rust-lang/crates.io-index)" = "228047a76f468627ca71776ecdebd732a3423081fcf5125585bcd7c49886ce12"
 "checksum buf_redux 0.7.1 (registry+https://github.com/rust-lang/crates.io-index)" = "20c6687a26c9ce967594b78038c06139a0d3a5b3005d16572284d543924a01aa"
 "checksum bufstream 0.1.4 (registry+https://github.com/rust-lang/crates.io-index)" = "40e38929add23cdf8a366df9b0e088953150724bcbe5fc330b0d8eb3b328eec8"
@@ -2346,7 +2632,9 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 "checksum cloudabi 0.0.3 (registry+https://github.com/rust-lang/crates.io-index)" = "ddfc5b9aa5d4507acaf872de71051dfd0e309860e88966e1051e462a077aac4f"
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 "checksum url 1.7.1 (registry+https://github.com/rust-lang/crates.io-index)" = "2a321979c09843d272956e73700d12c4e7d3d92b2ee112b31548aef0d4efc5a6"
 "checksum utf8-ranges 1.0.1 (registry+https://github.com/rust-lang/crates.io-index)" = "fd70f467df6810094968e2fce0ee1bd0e87157aceb026a8c083bcf5e25b9efe4"
+"checksum uuid 0.6.5 (registry+https://github.com/rust-lang/crates.io-index)" = "e1436e58182935dcd9ce0add9ea0b558e8a87befe01c1a301e6020aeb0876363"
 "checksum uuid 0.7.1 (registry+https://github.com/rust-lang/crates.io-index)" = "dab5c5526c5caa3d106653401a267fed923e7046f35895ffcb5ca42db64942e6"
 "checksum vcpkg 0.2.6 (registry+https://github.com/rust-lang/crates.io-index)" = "def296d3eb3b12371b2c7d0e83bfe1403e4db2d7a0bba324a12b21c4ee13143d"
 "checksum version_check 0.1.5 (registry+https://github.com/rust-lang/crates.io-index)" = "914b1a6776c4c929a602fafd8bc742e06365d4bcbe48c30f9cca5824f70dc9dd"
 "checksum void 1.0.2 (registry+https://github.com/rust-lang/crates.io-index)" = "6a02e4885ed3bc0f2de90ea6dd45ebcbb66dacffe03547fadbb0eeae2770887d"
+"checksum want 0.0.4 (registry+https://github.com/rust-lang/crates.io-index)" = "a05d9d966753fa4b5c8db73fcab5eed4549cfe0e1e4e66911e5564a0085c35d1"
 "checksum want 0.0.6 (registry+https://github.com/rust-lang/crates.io-index)" = "797464475f30ddb8830cc529aaaae648d581f99e2036a928877dfde027ddf6b3"
 "checksum webpki 0.14.0 (registry+https://github.com/rust-lang/crates.io-index)" = "e499345fc4c6b7c79a5b8756d4592c4305510a13512e79efafe00dfbd67bbac6"
 "checksum webpki 0.16.0 (registry+https://github.com/rust-lang/crates.io-index)" = "493012e46177f3f4ee9cd58fd0c81ecb77e6d6cc6ebce55989b9c33376fbe5ee"
@@ -2579,3 +2887,4 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 "checksum ws 0.7.8 (registry+https://github.com/rust-lang/crates.io-index)" = "d2c221321dca56e6a80aa179d562e1fbe6ae116aeaa9205c76fa64e9e3c49dfc"
 "checksum ws2_32-sys 0.2.1 (registry+https://github.com/rust-lang/crates.io-index)" = "d59cefebd0c892fa2dd6de581e937301d8552cb44489cdff035c6187cb63fa5e"
 "checksum yansi 0.4.0 (registry+https://github.com/rust-lang/crates.io-index)" = "d60c3b48c9cdec42fb06b3b84b5b087405e1fa1c644a1af3930e4dfafe93de48"
+"checksum yubico 0.4.0 (registry+https://github.com/rust-lang/crates.io-index)" = "27dcecaa13b0c19dbe156647e59c5d1c15cd6039ca88d3bbf7ef38f732ad3962"
diff --git a/Cargo.toml b/Cargo.toml
index 736a83b..e993dc4 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -57,6 +57,9 @@ jsonwebtoken = "= 4.0.1"
 # U2F library
 u2f = "0.1.2"
 
+# Yubico Library
+yubico="0.4.0"
+
 # A `dotenv` implementation for Rust
 dotenv = { version = "0.13.0", default-features = false }
 

From e66436625ce81d1a757f11d1bed5c5fcd8b5392f Mon Sep 17 00:00:00 2001
From: Stepan Fedorko-Bartos <step7750@gmail.com>
Date: Thu, 15 Nov 2018 18:40:27 -0700
Subject: [PATCH 2/9] Adds Yubico Client ID and Secret Key Env Vars

---
 .env        |  7 +++++++
 src/main.rs | 12 ++++++++++++
 2 files changed, 19 insertions(+)

diff --git a/.env b/.env
index b04b632..d960f8e 100644
--- a/.env
+++ b/.env
@@ -40,6 +40,13 @@
 ## For U2F to work, the server must use HTTPS, you can use Let's Encrypt for free certs
 # DOMAIN=https://bw.domain.tld:8443
 
+## Yubico (Yubikey) Settings
+## Set your Client ID and Secret Key for Yubikey OTP
+## You can generate it here: https://upgrade.yubico.com/getapikey/
+## TODO: Allow choosing custom YubiCloud server
+# YUBICO_CLIENT_ID=11111
+# YUBICO_SECRET_KEY=AAAAAAAAAAAAAAAAAAAAAAAA
+
 ## Rocket specific settings, check Rocket documentation to learn more
 # ROCKET_ENV=staging
 # ROCKET_ADDRESS=0.0.0.0 # Enable this to test mobile app
diff --git a/src/main.rs b/src/main.rs
index db56066..f4c6d34 100644
--- a/src/main.rs
+++ b/src/main.rs
@@ -25,6 +25,7 @@ extern crate oath;
 extern crate data_encoding;
 extern crate jsonwebtoken as jwt;
 extern crate u2f;
+extern crate yubico;
 extern crate dotenv;
 #[macro_use]
 extern crate lazy_static;
@@ -245,6 +246,10 @@ pub struct Config {
     domain: String,
     domain_set: bool,
 
+    yubico_cred_set: bool,
+    yubico_client_id: String,
+    yubico_secret_key: String,
+
     mail: Option<MailConfig>,
 }
 
@@ -258,6 +263,9 @@ impl Config {
 
         let domain = get_env("DOMAIN");
 
+        let yubico_client_id = get_env("YUBICO_CLIENT_ID");
+        let yubico_secret_key = get_env("YUBICO_SECRET_KEY");
+
         Config {
             database_url: get_env_or("DATABASE_URL", format!("{}/{}", &df, "db.sqlite3")),
             icon_cache_folder: get_env_or("ICON_CACHE_FOLDER", format!("{}/{}", &df, "icon_cache")),
@@ -283,6 +291,10 @@ impl Config {
             domain_set: domain.is_some(),
             domain: domain.unwrap_or("http://localhost".into()),
 
+            yubico_cred_set: yubico_client_id.is_some() && yubico_secret_key.is_some(),
+            yubico_client_id: yubico_client_id.unwrap_or("00000".into()),
+            yubico_secret_key: yubico_secret_key.unwrap_or("AAAAAAA".into()),
+
             mail: MailConfig::load(),
         }
     }

From 9e0e4b13c54f5f9595ecdf6a21c49f9249602265 Mon Sep 17 00:00:00 2001
From: Stepan Fedorko-Bartos <step7750@gmail.com>
Date: Thu, 15 Nov 2018 18:43:09 -0700
Subject: [PATCH 3/9] Adds Yubikey OTP Support

---
 src/api/core/mod.rs        |   3 +
 src/api/core/two_factor.rs | 200 +++++++++++++++++++++++++++++++++++++
 src/api/identity.rs        |   6 ++
 3 files changed, 209 insertions(+)

diff --git a/src/api/core/mod.rs b/src/api/core/mod.rs
index 3904acf..4c748fd 100644
--- a/src/api/core/mod.rs
+++ b/src/api/core/mod.rs
@@ -83,6 +83,9 @@ pub fn routes() -> Vec<Route> {
         generate_u2f_challenge,
         activate_u2f,
         activate_u2f_put,
+        generate_yubikey,
+        activate_yubikey,
+        activate_yubikey_put,
 
         get_organization,
         create_organization,
diff --git a/src/api/core/two_factor.rs b/src/api/core/two_factor.rs
index 969b8c5..2ba03fc 100644
--- a/src/api/core/two_factor.rs
+++ b/src/api/core/two_factor.rs
@@ -491,3 +491,203 @@ pub fn validate_u2f_login(user_uuid: &str, response: &str, conn: &DbConn) -> Api
     }
     err!("error verifying response")
 }
+
+
+#[derive(Deserialize, Debug)]
+#[allow(non_snake_case)]
+struct EnableYubikeyData {
+    MasterPasswordHash: String,
+    Key1: Option<String>,
+    Key2: Option<String>,
+    Key3: Option<String>,
+    Key4: Option<String>,
+    Key5: Option<String>,
+    Nfc: bool,
+}
+
+#[derive(Deserialize, Serialize, Debug)]
+#[allow(non_snake_case)]
+struct YubikeyMetadata {
+    Keys: Vec<String>,
+    Nfc: bool,
+}
+
+use yubico::Yubico;
+use yubico::config::Config;
+
+fn parse_yubikeys(data: &EnableYubikeyData) -> Vec<String> {
+    let mut yubikeys: Vec<String> = Vec::new();
+
+    if data.Key1.is_some() {
+        yubikeys.push(data.Key1.as_ref().unwrap().to_owned());
+    }
+
+    if data.Key2.is_some() {
+        yubikeys.push(data.Key2.as_ref().unwrap().to_owned());
+    }
+
+    if data.Key3.is_some() {
+        yubikeys.push(data.Key3.as_ref().unwrap().to_owned());
+    }
+
+    if data.Key4.is_some() {
+        yubikeys.push(data.Key4.as_ref().unwrap().to_owned());
+    }
+
+    if data.Key5.is_some() {
+        yubikeys.push(data.Key5.as_ref().unwrap().to_owned());
+    }
+
+    yubikeys
+}
+
+fn jsonify_yubikeys(yubikeys: Vec<String>) -> serde_json::Value {
+    let mut result = json!({});
+
+    for i in 0..yubikeys.len() {
+        let ref key = &yubikeys[i];
+        result[format!("Key{}", i+1)] = Value::String(key.to_string());
+    }
+
+    result
+}
+
+fn verify_yubikey_otp(otp: String) -> JsonResult {
+    if !CONFIG.yubico_cred_set {
+        err!("`YUBICO_CLIENT_ID` or `YUBICO_SECRET_KEY` environment variable is not set. \
+               Yubikey OTP Disabled")
+    }
+
+    let yubico = Yubico::new();
+    let config = Config::default().set_client_id(CONFIG.yubico_client_id.to_owned()).set_key(CONFIG.yubico_secret_key.to_owned());
+
+    let result = yubico.verify(otp, config);
+
+    match result {
+        Ok(_answer) => Ok(Json(json!({}))),
+        Err(_e) => err!("Failed to verify OTP"),
+    }
+}
+
+#[post("/two-factor/get-yubikey", data = "<data>")]
+fn generate_yubikey(data: JsonUpcase<PasswordData>, headers: Headers, conn: DbConn) -> JsonResult {
+    let data: PasswordData = data.into_inner().data;
+
+    if !headers.user.check_valid_password(&data.MasterPasswordHash) {
+        err!("Invalid password");
+    }
+
+    let user_uuid = &headers.user.uuid;
+    let yubikey_type = TwoFactorType::YubiKey as i32;
+
+    let r = TwoFactor::find_by_user_and_type(user_uuid, yubikey_type, &conn);
+
+    if let Some(r) = r {
+        let yubikey_metadata: YubikeyMetadata =
+            serde_json::from_str(&r.data).expect("Can't parse YubikeyMetadata data");
+
+        let mut result = jsonify_yubikeys(yubikey_metadata.Keys);
+
+        result["Enabled"] = Value::Bool(true);
+        result["Nfc"] = Value::Bool(yubikey_metadata.Nfc);
+        result["Object"] = Value::String("twoFactorU2f".to_owned());
+
+        Ok(Json(result))
+    } else {
+        Ok(Json(json!({
+            "Enabled": false,
+            "Object": "twoFactorU2f",
+        })))
+    }
+}
+
+#[post("/two-factor/yubikey", data = "<data>")]
+fn activate_yubikey(data: JsonUpcase<EnableYubikeyData>, headers: Headers, conn: DbConn) -> JsonResult {
+    let data: EnableYubikeyData = data.into_inner().data;
+
+    if !headers.user.check_valid_password(&data.MasterPasswordHash) {
+        err!("Invalid password");
+    }
+
+    // Check if we already have some data
+    let yubikey_data = TwoFactor::find_by_user_and_type(
+        &headers.user.uuid,
+        TwoFactorType::YubiKey as i32,
+        &conn,
+    );
+
+    if let Some(yubikey_data) = yubikey_data {
+        yubikey_data.delete(&conn).expect("Error deleting current Yubikeys");
+    }
+
+    let yubikeys = parse_yubikeys(&data);
+
+    // Ensure they are valid OTPs
+    for yubikey in &yubikeys {
+        if yubikey.len() == 12 {
+            // YubiKey ID
+            continue
+        }
+
+        let result = verify_yubikey_otp(yubikey.to_owned());
+
+        if let Err(_e) = result {
+            err!("Invalid Yubikey OTP provided");
+        }
+    }
+
+    let yubikey_ids: Vec<String> = yubikeys.into_iter().map(|x| (&x[..12]).to_owned()).collect();
+
+    let yubikey_metadata = YubikeyMetadata {
+        Keys: yubikey_ids,
+        Nfc: data.Nfc,
+    };
+
+    let yubikey_registration = TwoFactor::new(
+        headers.user.uuid.clone(),
+        TwoFactorType::YubiKey,
+        serde_json::to_string(&yubikey_metadata).unwrap(),
+    );
+    yubikey_registration
+        .save(&conn).expect("Failed to save Yubikey info");
+
+    let mut result = jsonify_yubikeys(yubikey_metadata.Keys);
+
+    result["Enabled"] = Value::Bool(true);
+    result["Nfc"] = Value::Bool(yubikey_metadata.Nfc);
+    result["Object"] = Value::String("twoFactorU2f".to_owned());
+
+    Ok(Json(result))
+}
+
+#[put("/two-factor/yubikey", data = "<data>")]
+fn activate_yubikey_put(data: JsonUpcase<EnableYubikeyData>, headers: Headers, conn: DbConn) -> JsonResult {
+    activate_yubikey(data, headers, conn)
+}
+
+pub fn validate_yubikey_login(user_uuid: &str, response: &str, conn: &DbConn) -> ApiResult<()> {
+    if response.len() != 44 {
+        err!("Invalid Yubikey OTP length");
+    }
+
+    let yubikey_type = TwoFactorType::YubiKey as i32;
+
+    let twofactor = match TwoFactor::find_by_user_and_type(user_uuid, yubikey_type, &conn) {
+        Some(tf) => tf,
+        None => err!("No YubiKey devices registered"),
+    };
+
+    let yubikey_metadata: YubikeyMetadata = serde_json::from_str(&twofactor.data).expect("Can't parse Yubikey Metadata");
+    let response_id = &response[..12];
+
+    if !yubikey_metadata.Keys.contains(&response_id.to_owned()) {
+        err!("Given Yubikey is not registered");
+    }
+
+    let result = verify_yubikey_otp(response.to_owned());
+
+    match result {
+        Ok(_answer) => Ok(()),
+        Err(_e) => err!("Failed to verify Yubikey against OTP server"),
+    }
+}
diff --git a/src/api/identity.rs b/src/api/identity.rs
index 175c5af..752bcd2 100644
--- a/src/api/identity.rs
+++ b/src/api/identity.rs
@@ -209,6 +209,12 @@ fn twofactor_auth(
             two_factor::validate_u2f_login(user_uuid, twofactor_code, conn)?;
         }
 
+        Some(TwoFactorType::YubiKey) => {
+            use api::core::two_factor;
+
+            two_factor::validate_yubikey_login(user_uuid, twofactor_code, conn)?;
+        }
+
         _ => err!("Invalid two factor provider"),
     }
 

From 2433d39df5aa37c8927b0583ef1dc1c9a2e9c67f Mon Sep 17 00:00:00 2001
From: Stepan Fedorko-Bartos <step7750@gmail.com>
Date: Thu, 15 Nov 2018 18:54:53 -0700
Subject: [PATCH 4/9] Allows Custom Yubico OTP Server

---
 .env                       | 3 ++-
 src/api/core/two_factor.rs | 9 ++++++++-
 src/main.rs                | 2 ++
 3 files changed, 12 insertions(+), 2 deletions(-)

diff --git a/.env b/.env
index d960f8e..0f73893 100644
--- a/.env
+++ b/.env
@@ -43,9 +43,10 @@
 ## Yubico (Yubikey) Settings
 ## Set your Client ID and Secret Key for Yubikey OTP
 ## You can generate it here: https://upgrade.yubico.com/getapikey/
-## TODO: Allow choosing custom YubiCloud server
+## You can optionally specify a custom OTP server
 # YUBICO_CLIENT_ID=11111
 # YUBICO_SECRET_KEY=AAAAAAAAAAAAAAAAAAAAAAAA
+# YUBICO_SERVER=http://yourdomain.com/wsapi/2.0/verify
 
 ## Rocket specific settings, check Rocket documentation to learn more
 # ROCKET_ENV=staging
diff --git a/src/api/core/two_factor.rs b/src/api/core/two_factor.rs
index 2ba03fc..7e09e22 100644
--- a/src/api/core/two_factor.rs
+++ b/src/api/core/two_factor.rs
@@ -561,7 +561,14 @@ fn verify_yubikey_otp(otp: String) -> JsonResult {
     let yubico = Yubico::new();
     let config = Config::default().set_client_id(CONFIG.yubico_client_id.to_owned()).set_key(CONFIG.yubico_secret_key.to_owned());
 
-    let result = yubico.verify(otp, config);
+    let result;
+
+    if CONFIG.yubico_server.is_some() {
+        result = yubico.verify(otp, config.set_api_hosts(vec![CONFIG.yubico_server.to_owned().unwrap()]));
+    }
+    else {
+        result = yubico.verify(otp, config);
+    }
 
     match result {
         Ok(_answer) => Ok(Json(json!({}))),
diff --git a/src/main.rs b/src/main.rs
index f4c6d34..feb241a 100644
--- a/src/main.rs
+++ b/src/main.rs
@@ -249,6 +249,7 @@ pub struct Config {
     yubico_cred_set: bool,
     yubico_client_id: String,
     yubico_secret_key: String,
+    yubico_server: Option<String>,
 
     mail: Option<MailConfig>,
 }
@@ -294,6 +295,7 @@ impl Config {
             yubico_cred_set: yubico_client_id.is_some() && yubico_secret_key.is_some(),
             yubico_client_id: yubico_client_id.unwrap_or("00000".into()),
             yubico_secret_key: yubico_secret_key.unwrap_or("AAAAAAA".into()),
+            yubico_server: get_env("YUBICO_SERVER"),
 
             mail: MailConfig::load(),
         }

From 6d735806c04b7334eddcfdc7935d0b21d799b1d4 Mon Sep 17 00:00:00 2001
From: Stepan Fedorko-Bartos <step7750@gmail.com>
Date: Thu, 15 Nov 2018 18:58:44 -0700
Subject: [PATCH 5/9] Ensures Yubico Creds are set when opening Yubikey Modal

---
 src/api/core/two_factor.rs | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/src/api/core/two_factor.rs b/src/api/core/two_factor.rs
index 7e09e22..59b2a0c 100644
--- a/src/api/core/two_factor.rs
+++ b/src/api/core/two_factor.rs
@@ -578,6 +578,11 @@ fn verify_yubikey_otp(otp: String) -> JsonResult {
 
 #[post("/two-factor/get-yubikey", data = "<data>")]
 fn generate_yubikey(data: JsonUpcase<PasswordData>, headers: Headers, conn: DbConn) -> JsonResult {
+    if !CONFIG.yubico_cred_set {
+        err!("`YUBICO_CLIENT_ID` or `YUBICO_SECRET_KEY` environment variable is not set. \
+               Yubikey OTP Disabled")
+    }
+
     let data: PasswordData = data.into_inner().data;
 
     if !headers.user.check_valid_password(&data.MasterPasswordHash) {

From 2c233cda8bd123f9156fc3ba3f6800fd1fa3e4c3 Mon Sep 17 00:00:00 2001
From: Stepan Fedorko-Bartos <step7750@gmail.com>
Date: Thu, 15 Nov 2018 18:59:16 -0700
Subject: [PATCH 6/9] Adds Yubikey OTP Support to Readme

---
 README.md | 19 ++++++++++++++++++-
 1 file changed, 18 insertions(+), 1 deletion(-)

diff --git a/README.md b/README.md
index ba4fed2..2de210a 100644
--- a/README.md
+++ b/README.md
@@ -28,6 +28,7 @@ _*Note, that this project is not associated with the [Bitwarden](https://bitward
   - [Enabling HTTPS](#enabling-https)
   - [Enabling WebSocket notifications](#enabling-websocket-notifications)
   - [Enabling U2F authentication](#enabling-u2f-authentication)
+  - [Enabling YubiKey OTP authentication](#enabling-yubikey-otp-authentication)
   - [Changing persistent data location](#changing-persistent-data-location)
     - [/data prefix:](#data-prefix)
     - [database name and location](#database-name-and-location)
@@ -68,11 +69,11 @@ Basically full implementation of Bitwarden API is provided including:
  * Serving the static files for Vault interface
  * Website icons API
  * Authenticator and U2F support
+ * YubiKey OTP
  
 ## Missing features
 * Email confirmation
 * Other two-factor systems:
-  * YubiKey OTP (if your key supports U2F, you can use that)
   * Duo
   * Email codes
 
@@ -252,6 +253,22 @@ docker run -d --name bitwarden \
 
 Note that the value has to include the `https://` and it may include a port at the end (in the format of `https://bw.domain.tld:port`) when not using `443`.
 
+### Enabling YubiKey OTP authentication
+To enable YubiKey authentication, you must set the `YUBICO_CLIENT_ID` and `YUBICO_SECRET_KEY` env variables.
+
+If `YUBICO_SERVER` is not specified, it will use the default YubiCloud servers. You can generate `YUBICO_CLIENT_ID` and `YUBICO_SECRET_KEY` for the default YubiCloud [here](https://upgrade.yubico.com/getapikey/).
+
+Note: In order to generate API keys or use a YubiKey with an OTP server, it must be registered. After configuring your key in the [YubiKey Personalization Tool](https://www.yubico.com/products/services-software/personalization-tools/use/), you can register it with the default servers [here](https://upload.yubico.com/).
+
+```sh
+docker run -d --name bitwarden \
+  -e YUBICO_CLIENT_ID=12345 \
+  -e YUBICO_SECRET_KEY=ABCDEABCDEABCDEABCDE= \
+  -v /bw-data/:/data/ \
+  -p 80:80 \
+  mprasil/bitwarden:latest
+```
+
 ### Changing persistent data location
 
 #### /data prefix:

From 5a8d5e426dca0f5c3d03db0722ddc1457e7c7ceb Mon Sep 17 00:00:00 2001
From: Stepan Fedorko-Bartos <step7750@gmail.com>
Date: Fri, 16 Nov 2018 11:28:20 -0700
Subject: [PATCH 7/9] Switches to Downstream yubico with Optional libusb

---
 Cargo.lock | 337 ++++++++++++-----------------------------------------
 Cargo.toml |   5 +-
 2 files changed, 80 insertions(+), 262 deletions(-)

diff --git a/Cargo.lock b/Cargo.lock
index c5df225..7233b0f 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -82,23 +82,13 @@ dependencies = [
 ]
 
 [[package]]
-name = "bit-set"
-version = "0.2.0"
+name = "base64"
+version = "0.10.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
- "bit-vec 0.5.0 (registry+https://github.com/rust-lang/crates.io-index)",
+ "byteorder 1.2.6 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
-[[package]]
-name = "bit-vec"
-version = "0.5.0"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-
-[[package]]
-name = "bitflags"
-version = "0.9.1"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-
 [[package]]
 name = "bitflags"
 version = "1.0.4"
@@ -137,7 +127,7 @@ dependencies = [
  "u2f 0.1.2 (git+https://github.com/wisespace-io/u2f-rs?rev=193de35093a44)",
  "uuid 0.7.1 (registry+https://github.com/rust-lang/crates.io-index)",
  "ws 0.7.8 (registry+https://github.com/rust-lang/crates.io-index)",
- "yubico 0.4.0 (registry+https://github.com/rust-lang/crates.io-index)",
+ "yubico 0.4.0 (git+https://github.com/dani-garcia/yubico-rs)",
 ]
 
 [[package]]
@@ -237,15 +227,6 @@ dependencies = [
  "url 1.7.1 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
-[[package]]
-name = "core-foundation"
-version = "0.2.3"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-dependencies = [
- "core-foundation-sys 0.2.3 (registry+https://github.com/rust-lang/crates.io-index)",
- "libc 0.2.43 (registry+https://github.com/rust-lang/crates.io-index)",
-]
-
 [[package]]
 name = "core-foundation"
 version = "0.5.1"
@@ -255,14 +236,6 @@ dependencies = [
  "libc 0.2.43 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
-[[package]]
-name = "core-foundation-sys"
-version = "0.2.3"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-dependencies = [
- "libc 0.2.43 (registry+https://github.com/rust-lang/crates.io-index)",
-]
-
 [[package]]
 name = "core-foundation-sys"
 version = "0.5.1"
@@ -665,31 +638,6 @@ dependencies = [
  "url 1.7.1 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
-[[package]]
-name = "hyper"
-version = "0.11.27"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-dependencies = [
- "base64 0.9.3 (registry+https://github.com/rust-lang/crates.io-index)",
- "bytes 0.4.10 (registry+https://github.com/rust-lang/crates.io-index)",
- "futures 0.1.24 (registry+https://github.com/rust-lang/crates.io-index)",
- "futures-cpupool 0.1.8 (registry+https://github.com/rust-lang/crates.io-index)",
- "httparse 1.3.3 (registry+https://github.com/rust-lang/crates.io-index)",
- "iovec 0.1.2 (registry+https://github.com/rust-lang/crates.io-index)",
- "language-tags 0.2.2 (registry+https://github.com/rust-lang/crates.io-index)",
- "log 0.4.5 (registry+https://github.com/rust-lang/crates.io-index)",
- "mime 0.3.9 (registry+https://github.com/rust-lang/crates.io-index)",
- "net2 0.2.33 (registry+https://github.com/rust-lang/crates.io-index)",
- "percent-encoding 1.0.1 (registry+https://github.com/rust-lang/crates.io-index)",
- "relay 0.1.1 (registry+https://github.com/rust-lang/crates.io-index)",
- "time 0.1.40 (registry+https://github.com/rust-lang/crates.io-index)",
- "tokio-core 0.1.17 (registry+https://github.com/rust-lang/crates.io-index)",
- "tokio-io 0.1.9 (registry+https://github.com/rust-lang/crates.io-index)",
- "tokio-service 0.1.0 (registry+https://github.com/rust-lang/crates.io-index)",
- "unicase 2.1.0 (registry+https://github.com/rust-lang/crates.io-index)",
- "want 0.0.4 (registry+https://github.com/rust-lang/crates.io-index)",
-]
-
 [[package]]
 name = "hyper"
 version = "0.12.11"
@@ -725,20 +673,6 @@ dependencies = [
  "webpki-roots 0.11.0 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
-[[package]]
-name = "hyper-tls"
-version = "0.1.4"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-dependencies = [
- "futures 0.1.24 (registry+https://github.com/rust-lang/crates.io-index)",
- "hyper 0.11.27 (registry+https://github.com/rust-lang/crates.io-index)",
- "native-tls 0.1.5 (registry+https://github.com/rust-lang/crates.io-index)",
- "tokio-core 0.1.17 (registry+https://github.com/rust-lang/crates.io-index)",
- "tokio-io 0.1.9 (registry+https://github.com/rust-lang/crates.io-index)",
- "tokio-service 0.1.0 (registry+https://github.com/rust-lang/crates.io-index)",
- "tokio-tls 0.1.4 (registry+https://github.com/rust-lang/crates.io-index)",
-]
-
 [[package]]
 name = "hyper-tls"
 version = "0.3.1"
@@ -911,25 +845,6 @@ dependencies = [
  "vcpkg 0.2.6 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
-[[package]]
-name = "libusb"
-version = "0.2.2"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-dependencies = [
- "bit-set 0.2.0 (registry+https://github.com/rust-lang/crates.io-index)",
- "libc 0.2.43 (registry+https://github.com/rust-lang/crates.io-index)",
- "libusb-sys 0.2.3 (registry+https://github.com/rust-lang/crates.io-index)",
-]
-
-[[package]]
-name = "libusb-sys"
-version = "0.2.3"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-dependencies = [
- "libc 0.2.43 (registry+https://github.com/rust-lang/crates.io-index)",
- "pkg-config 0.3.14 (registry+https://github.com/rust-lang/crates.io-index)",
-]
-
 [[package]]
 name = "lock_api"
 version = "0.1.4"
@@ -1124,20 +1039,6 @@ dependencies = [
  "rustc-serialize 0.3.24 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
-[[package]]
-name = "native-tls"
-version = "0.1.5"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-dependencies = [
- "lazy_static 0.2.11 (registry+https://github.com/rust-lang/crates.io-index)",
- "libc 0.2.43 (registry+https://github.com/rust-lang/crates.io-index)",
- "openssl 0.9.24 (registry+https://github.com/rust-lang/crates.io-index)",
- "schannel 0.1.14 (registry+https://github.com/rust-lang/crates.io-index)",
- "security-framework 0.1.16 (registry+https://github.com/rust-lang/crates.io-index)",
- "security-framework-sys 0.1.16 (registry+https://github.com/rust-lang/crates.io-index)",
- "tempdir 0.3.7 (registry+https://github.com/rust-lang/crates.io-index)",
-]
-
 [[package]]
 name = "native-tls"
 version = "0.2.1"
@@ -1248,18 +1149,6 @@ dependencies = [
  "sha2 0.5.3 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
-[[package]]
-name = "openssl"
-version = "0.9.24"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-dependencies = [
- "bitflags 0.9.1 (registry+https://github.com/rust-lang/crates.io-index)",
- "foreign-types 0.3.2 (registry+https://github.com/rust-lang/crates.io-index)",
- "lazy_static 1.1.0 (registry+https://github.com/rust-lang/crates.io-index)",
- "libc 0.2.43 (registry+https://github.com/rust-lang/crates.io-index)",
- "openssl-sys 0.9.36 (registry+https://github.com/rust-lang/crates.io-index)",
-]
-
 [[package]]
 name = "openssl"
 version = "0.10.12"
@@ -1500,6 +1389,33 @@ dependencies = [
  "winapi 0.3.6 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
+[[package]]
+name = "rand"
+version = "0.6.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+dependencies = [
+ "cloudabi 0.0.3 (registry+https://github.com/rust-lang/crates.io-index)",
+ "fuchsia-zircon 0.3.3 (registry+https://github.com/rust-lang/crates.io-index)",
+ "libc 0.2.43 (registry+https://github.com/rust-lang/crates.io-index)",
+ "rand_chacha 0.1.0 (registry+https://github.com/rust-lang/crates.io-index)",
+ "rand_core 0.3.0 (registry+https://github.com/rust-lang/crates.io-index)",
+ "rand_hc 0.1.0 (registry+https://github.com/rust-lang/crates.io-index)",
+ "rand_isaac 0.1.0 (registry+https://github.com/rust-lang/crates.io-index)",
+ "rand_pcg 0.1.1 (registry+https://github.com/rust-lang/crates.io-index)",
+ "rand_xorshift 0.1.0 (registry+https://github.com/rust-lang/crates.io-index)",
+ "rustc_version 0.2.3 (registry+https://github.com/rust-lang/crates.io-index)",
+ "winapi 0.3.6 (registry+https://github.com/rust-lang/crates.io-index)",
+]
+
+[[package]]
+name = "rand_chacha"
+version = "0.1.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+dependencies = [
+ "rand_core 0.2.2 (registry+https://github.com/rust-lang/crates.io-index)",
+ "rustc_version 0.2.3 (registry+https://github.com/rust-lang/crates.io-index)",
+]
+
 [[package]]
 name = "rand_core"
 version = "0.2.2"
@@ -1513,6 +1429,39 @@ name = "rand_core"
 version = "0.3.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 
+[[package]]
+name = "rand_hc"
+version = "0.1.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+dependencies = [
+ "rand_core 0.2.2 (registry+https://github.com/rust-lang/crates.io-index)",
+]
+
+[[package]]
+name = "rand_isaac"
+version = "0.1.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+dependencies = [
+ "rand_core 0.2.2 (registry+https://github.com/rust-lang/crates.io-index)",
+]
+
+[[package]]
+name = "rand_pcg"
+version = "0.1.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+dependencies = [
+ "rand_core 0.3.0 (registry+https://github.com/rust-lang/crates.io-index)",
+ "rustc_version 0.2.3 (registry+https://github.com/rust-lang/crates.io-index)",
+]
+
+[[package]]
+name = "rand_xorshift"
+version = "0.1.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+dependencies = [
+ "rand_core 0.2.2 (registry+https://github.com/rust-lang/crates.io-index)",
+]
+
 [[package]]
 name = "rayon"
 version = "0.7.1"
@@ -1577,14 +1526,6 @@ dependencies = [
  "ucd-util 0.1.1 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
-[[package]]
-name = "relay"
-version = "0.1.1"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-dependencies = [
- "futures 0.1.24 (registry+https://github.com/rust-lang/crates.io-index)",
-]
-
 [[package]]
 name = "remove_dir_all"
 version = "0.5.1"
@@ -1593,30 +1534,6 @@ dependencies = [
  "winapi 0.3.6 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
-[[package]]
-name = "reqwest"
-version = "0.8.8"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-dependencies = [
- "bytes 0.4.10 (registry+https://github.com/rust-lang/crates.io-index)",
- "encoding_rs 0.8.8 (registry+https://github.com/rust-lang/crates.io-index)",
- "futures 0.1.24 (registry+https://github.com/rust-lang/crates.io-index)",
- "hyper 0.11.27 (registry+https://github.com/rust-lang/crates.io-index)",
- "hyper-tls 0.1.4 (registry+https://github.com/rust-lang/crates.io-index)",
- "libflate 0.1.18 (registry+https://github.com/rust-lang/crates.io-index)",
- "log 0.4.5 (registry+https://github.com/rust-lang/crates.io-index)",
- "mime_guess 2.0.0-alpha.6 (registry+https://github.com/rust-lang/crates.io-index)",
- "native-tls 0.1.5 (registry+https://github.com/rust-lang/crates.io-index)",
- "serde 1.0.79 (registry+https://github.com/rust-lang/crates.io-index)",
- "serde_json 1.0.31 (registry+https://github.com/rust-lang/crates.io-index)",
- "serde_urlencoded 0.5.3 (registry+https://github.com/rust-lang/crates.io-index)",
- "tokio-core 0.1.17 (registry+https://github.com/rust-lang/crates.io-index)",
- "tokio-io 0.1.9 (registry+https://github.com/rust-lang/crates.io-index)",
- "tokio-tls 0.1.4 (registry+https://github.com/rust-lang/crates.io-index)",
- "url 1.7.1 (registry+https://github.com/rust-lang/crates.io-index)",
- "uuid 0.6.5 (registry+https://github.com/rust-lang/crates.io-index)",
-]
-
 [[package]]
 name = "reqwest"
 version = "0.9.2"
@@ -1801,27 +1718,11 @@ dependencies = [
  "antidote 1.0.0 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
-[[package]]
-name = "scoped-tls"
-version = "0.1.2"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-
 [[package]]
 name = "scopeguard"
 version = "0.3.3"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 
-[[package]]
-name = "security-framework"
-version = "0.1.16"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-dependencies = [
- "core-foundation 0.2.3 (registry+https://github.com/rust-lang/crates.io-index)",
- "core-foundation-sys 0.2.3 (registry+https://github.com/rust-lang/crates.io-index)",
- "libc 0.2.43 (registry+https://github.com/rust-lang/crates.io-index)",
- "security-framework-sys 0.1.16 (registry+https://github.com/rust-lang/crates.io-index)",
-]
-
 [[package]]
 name = "security-framework"
 version = "0.2.1"
@@ -1833,15 +1734,6 @@ dependencies = [
  "security-framework-sys 0.2.1 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
-[[package]]
-name = "security-framework-sys"
-version = "0.1.16"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-dependencies = [
- "core-foundation-sys 0.2.3 (registry+https://github.com/rust-lang/crates.io-index)",
- "libc 0.2.43 (registry+https://github.com/rust-lang/crates.io-index)",
-]
-
 [[package]]
 name = "security-framework-sys"
 version = "0.2.1"
@@ -2133,24 +2025,6 @@ dependencies = [
  "tokio-io 0.1.9 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
-[[package]]
-name = "tokio-core"
-version = "0.1.17"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-dependencies = [
- "bytes 0.4.10 (registry+https://github.com/rust-lang/crates.io-index)",
- "futures 0.1.24 (registry+https://github.com/rust-lang/crates.io-index)",
- "iovec 0.1.2 (registry+https://github.com/rust-lang/crates.io-index)",
- "log 0.4.5 (registry+https://github.com/rust-lang/crates.io-index)",
- "mio 0.6.16 (registry+https://github.com/rust-lang/crates.io-index)",
- "scoped-tls 0.1.2 (registry+https://github.com/rust-lang/crates.io-index)",
- "tokio 0.1.11 (registry+https://github.com/rust-lang/crates.io-index)",
- "tokio-executor 0.1.5 (registry+https://github.com/rust-lang/crates.io-index)",
- "tokio-io 0.1.9 (registry+https://github.com/rust-lang/crates.io-index)",
- "tokio-reactor 0.1.6 (registry+https://github.com/rust-lang/crates.io-index)",
- "tokio-timer 0.2.7 (registry+https://github.com/rust-lang/crates.io-index)",
-]
-
 [[package]]
 name = "tokio-current-thread"
 version = "0.1.3"
@@ -2205,14 +2079,6 @@ dependencies = [
  "tokio-io 0.1.9 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
-[[package]]
-name = "tokio-service"
-version = "0.1.0"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-dependencies = [
- "futures 0.1.24 (registry+https://github.com/rust-lang/crates.io-index)",
-]
-
 [[package]]
 name = "tokio-tcp"
 version = "0.1.2"
@@ -2251,17 +2117,6 @@ dependencies = [
  "tokio-executor 0.1.5 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
-[[package]]
-name = "tokio-tls"
-version = "0.1.4"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-dependencies = [
- "futures 0.1.24 (registry+https://github.com/rust-lang/crates.io-index)",
- "native-tls 0.1.5 (registry+https://github.com/rust-lang/crates.io-index)",
- "tokio-core 0.1.17 (registry+https://github.com/rust-lang/crates.io-index)",
- "tokio-io 0.1.9 (registry+https://github.com/rust-lang/crates.io-index)",
-]
-
 [[package]]
 name = "tokio-udp"
 version = "0.1.2"
@@ -2305,11 +2160,6 @@ name = "traitobject"
 version = "0.1.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 
-[[package]]
-name = "try-lock"
-version = "0.1.0"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-
 [[package]]
 name = "try-lock"
 version = "0.2.2"
@@ -2439,15 +2289,6 @@ name = "utf8-ranges"
 version = "1.0.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 
-[[package]]
-name = "uuid"
-version = "0.6.5"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-dependencies = [
- "cfg-if 0.1.5 (registry+https://github.com/rust-lang/crates.io-index)",
- "rand 0.4.3 (registry+https://github.com/rust-lang/crates.io-index)",
-]
-
 [[package]]
 name = "uuid"
 version = "0.7.1"
@@ -2471,16 +2312,6 @@ name = "void"
 version = "1.0.2"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 
-[[package]]
-name = "want"
-version = "0.0.4"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-dependencies = [
- "futures 0.1.24 (registry+https://github.com/rust-lang/crates.io-index)",
- "log 0.4.5 (registry+https://github.com/rust-lang/crates.io-index)",
- "try-lock 0.1.0 (registry+https://github.com/rust-lang/crates.io-index)",
-]
-
 [[package]]
 name = "want"
 version = "0.0.6"
@@ -2590,13 +2421,12 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 [[package]]
 name = "yubico"
 version = "0.4.0"
-source = "registry+https://github.com/rust-lang/crates.io-index"
+source = "git+https://github.com/dani-garcia/yubico-rs#f93a88834e4ebaaed0169850ff1a5e32a7d01719"
 dependencies = [
- "base64 0.9.3 (registry+https://github.com/rust-lang/crates.io-index)",
+ "base64 0.10.0 (registry+https://github.com/rust-lang/crates.io-index)",
  "bitflags 1.0.4 (registry+https://github.com/rust-lang/crates.io-index)",
- "libusb 0.2.2 (registry+https://github.com/rust-lang/crates.io-index)",
- "rand 0.4.3 (registry+https://github.com/rust-lang/crates.io-index)",
- "reqwest 0.8.8 (registry+https://github.com/rust-lang/crates.io-index)",
+ "rand 0.6.0 (registry+https://github.com/rust-lang/crates.io-index)",
+ "reqwest 0.9.2 (registry+https://github.com/rust-lang/crates.io-index)",
  "rust-crypto 0.2.36 (registry+https://github.com/rust-lang/crates.io-index)",
  "threadpool 1.7.1 (registry+https://github.com/rust-lang/crates.io-index)",
  "url 1.7.1 (registry+https://github.com/rust-lang/crates.io-index)",
@@ -2611,12 +2441,10 @@ dependencies = [
 "checksum ascii_utils 0.9.3 (registry+https://github.com/rust-lang/crates.io-index)" = "71938f30533e4d95a6d17aa530939da3842c2ab6f4f84b9dae68447e4129f74a"
 "checksum backtrace 0.3.9 (registry+https://github.com/rust-lang/crates.io-index)" = "89a47830402e9981c5c41223151efcced65a0510c13097c769cede7efb34782a"
 "checksum backtrace-sys 0.1.24 (registry+https://github.com/rust-lang/crates.io-index)" = "c66d56ac8dabd07f6aacdaf633f4b8262f5b3601a810a0dcddffd5c22c69daa0"
+"checksum base64 0.10.0 (registry+https://github.com/rust-lang/crates.io-index)" = "621fc7ecb8008f86d7fb9b95356cd692ce9514b80a86d85b397f32a22da7b9e2"
 "checksum base64 0.5.2 (registry+https://github.com/rust-lang/crates.io-index)" = "30e93c03064e7590d0466209155251b90c22e37fab1daf2771582598b5827557"
 "checksum base64 0.6.0 (registry+https://github.com/rust-lang/crates.io-index)" = "96434f987501f0ed4eb336a411e0631ecd1afa11574fe148587adc4ff96143c9"
 "checksum base64 0.9.3 (registry+https://github.com/rust-lang/crates.io-index)" = "489d6c0ed21b11d038c31b6ceccca973e65d73ba3bd8ecb9a2babf5546164643"
-"checksum bit-set 0.2.0 (registry+https://github.com/rust-lang/crates.io-index)" = "e6e1e6fb1c9e3d6fcdec57216a74eaa03e41f52a22f13a16438251d8e88b89da"
-"checksum bit-vec 0.5.0 (registry+https://github.com/rust-lang/crates.io-index)" = "4440d5cb623bb7390ae27fec0bb6c61111969860f8e3ae198bfa0663645e67cf"
-"checksum bitflags 0.9.1 (registry+https://github.com/rust-lang/crates.io-index)" = "4efd02e230a02e18f92fc2735f44597385ed02ad8f831e7c1c1156ee5e1ab3a5"
 "checksum bitflags 1.0.4 (registry+https://github.com/rust-lang/crates.io-index)" = "228047a76f468627ca71776ecdebd732a3423081fcf5125585bcd7c49886ce12"
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 "checksum vcpkg 0.2.6 (registry+https://github.com/rust-lang/crates.io-index)" = "def296d3eb3b12371b2c7d0e83bfe1403e4db2d7a0bba324a12b21c4ee13143d"
 "checksum version_check 0.1.5 (registry+https://github.com/rust-lang/crates.io-index)" = "914b1a6776c4c929a602fafd8bc742e06365d4bcbe48c30f9cca5824f70dc9dd"
 "checksum void 1.0.2 (registry+https://github.com/rust-lang/crates.io-index)" = "6a02e4885ed3bc0f2de90ea6dd45ebcbb66dacffe03547fadbb0eeae2770887d"
-"checksum want 0.0.4 (registry+https://github.com/rust-lang/crates.io-index)" = "a05d9d966753fa4b5c8db73fcab5eed4549cfe0e1e4e66911e5564a0085c35d1"
 "checksum want 0.0.6 (registry+https://github.com/rust-lang/crates.io-index)" = "797464475f30ddb8830cc529aaaae648d581f99e2036a928877dfde027ddf6b3"
 "checksum webpki 0.14.0 (registry+https://github.com/rust-lang/crates.io-index)" = "e499345fc4c6b7c79a5b8756d4592c4305510a13512e79efafe00dfbd67bbac6"
 "checksum webpki 0.16.0 (registry+https://github.com/rust-lang/crates.io-index)" = "493012e46177f3f4ee9cd58fd0c81ecb77e6d6cc6ebce55989b9c33376fbe5ee"
@@ -2887,4 +2702,4 @@ dependencies = [
 "checksum ws 0.7.8 (registry+https://github.com/rust-lang/crates.io-index)" = "d2c221321dca56e6a80aa179d562e1fbe6ae116aeaa9205c76fa64e9e3c49dfc"
 "checksum ws2_32-sys 0.2.1 (registry+https://github.com/rust-lang/crates.io-index)" = "d59cefebd0c892fa2dd6de581e937301d8552cb44489cdff035c6187cb63fa5e"
 "checksum yansi 0.4.0 (registry+https://github.com/rust-lang/crates.io-index)" = "d60c3b48c9cdec42fb06b3b84b5b087405e1fa1c644a1af3930e4dfafe93de48"
-"checksum yubico 0.4.0 (registry+https://github.com/rust-lang/crates.io-index)" = "27dcecaa13b0c19dbe156647e59c5d1c15cd6039ca88d3bbf7ef38f732ad3962"
+"checksum yubico 0.4.0 (git+https://github.com/dani-garcia/yubico-rs)" = "<none>"
diff --git a/Cargo.toml b/Cargo.toml
index e993dc4..60b60e5 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -58,7 +58,7 @@ jsonwebtoken = "= 4.0.1"
 u2f = "0.1.2"
 
 # Yubico Library
-yubico="0.4.0"
+yubico= { version = "0.4.0", default-features = false }
 
 # A `dotenv` implementation for Rust
 dotenv = { version = "0.13.0", default-features = false }
@@ -87,3 +87,6 @@ lettre_email = { git = 'https://github.com/lettre/lettre', rev = 'c988b1760ad81'
 
 # Version 0.1.2 from crates.io lacks a commit that fixes a certificate error
 u2f = { git = 'https://github.com/wisespace-io/u2f-rs', rev = '193de35093a44' }
+
+# Allows optional libusb support
+yubico = { git = 'https://github.com/dani-garcia/yubico-rs' }

From 82e2b8a8c0ad01225058bafd487f2656afb81704 Mon Sep 17 00:00:00 2001
From: Stepan Fedorko-Bartos <step7750@gmail.com>
Date: Fri, 16 Nov 2018 11:52:01 -0700
Subject: [PATCH 8/9] Code style changes

---
 src/api/core/two_factor.rs | 12 ++++--------
 1 file changed, 4 insertions(+), 8 deletions(-)

diff --git a/src/api/core/two_factor.rs b/src/api/core/two_factor.rs
index 59b2a0c..3571f1e 100644
--- a/src/api/core/two_factor.rs
+++ b/src/api/core/two_factor.rs
@@ -561,14 +561,10 @@ fn verify_yubikey_otp(otp: String) -> JsonResult {
     let yubico = Yubico::new();
     let config = Config::default().set_client_id(CONFIG.yubico_client_id.to_owned()).set_key(CONFIG.yubico_secret_key.to_owned());
 
-    let result;
-
-    if CONFIG.yubico_server.is_some() {
-        result = yubico.verify(otp, config.set_api_hosts(vec![CONFIG.yubico_server.to_owned().unwrap()]));
-    }
-    else {
-        result = yubico.verify(otp, config);
-    }
+    let result = match CONFIG.yubico_server {
+        Some(ref server) => yubico.verify(otp, config.set_api_hosts(vec![server.to_owned()])),
+        None => yubico.verify(otp, config)
+    };
 
     match result {
         Ok(_answer) => Ok(Json(json!({}))),

From aba9c28226d4f716d4f6fbc28baf98b84262ae00 Mon Sep 17 00:00:00 2001
From: Stepan Fedorko-Bartos <step7750@gmail.com>
Date: Fri, 16 Nov 2018 12:07:00 -0700
Subject: [PATCH 9/9] Disable Yubikey 2FA if 0 Keys Provided

---
 src/api/core/two_factor.rs | 7 +++++++
 1 file changed, 7 insertions(+)

diff --git a/src/api/core/two_factor.rs b/src/api/core/two_factor.rs
index 3571f1e..d4be29b 100644
--- a/src/api/core/two_factor.rs
+++ b/src/api/core/two_factor.rs
@@ -630,6 +630,13 @@ fn activate_yubikey(data: JsonUpcase<EnableYubikeyData>, headers: Headers, conn:
 
     let yubikeys = parse_yubikeys(&data);
 
+    if yubikeys.len() == 0 {
+        return Ok(Json(json!({
+            "Enabled": false,
+            "Object": "twoFactorU2f",
+        })));
+    }
+
     // Ensure they are valid OTPs
     for yubikey in &yubikeys {
         if yubikey.len() == 12 {