diff --git a/.github/workflows/build-release-binaries.yml b/.github/workflows/build-release-binaries.yml
index b0e5fe7..5f81c6d 100644
--- a/.github/workflows/build-release-binaries.yml
+++ b/.github/workflows/build-release-binaries.yml
@@ -72,7 +72,7 @@ jobs:
         uses: actions-rs/cargo@v1
         with:
           command: build
-          args: --release --locked --target=${{ matrix.target }} ${{ matrix.cargo_flags }}
+          args: --release --locked --features dev-pki --target=${{ matrix.target }} ${{ matrix.cargo_flags }}
           use-cross: ${{ matrix.cross }}
 
       - name: Upload binary
diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index fdd9b9b..d0fef65 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -33,7 +33,7 @@ jobs:
           override: true
           components: rustfmt, clippy
 
-      - name: cargo build --locked
+      - name: cargo build --locked --features dev-pki
         uses: actions-rs/cargo@v1
         with:
           command: build
@@ -42,7 +42,7 @@ jobs:
         uses: actions-rs/cargo@v1
         with:
           command: test
-          args: --features network-tests
+          args: --features dev-pki,network-tests
 
       - name: cargo fmt
         if: matrix.os == 'ubuntu-latest'
diff --git a/CHANGELOG.md b/CHANGELOG.md
index 441b7f0..75ce7f2 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -5,7 +5,7 @@ All notable changes to this project will be documented in this file.
 The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.0.0/),
 and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0.html).
 
-## [0.1.2] - 2022-01-07
+## [0.2.0] - 2022-05-24
 
 - `--dry-run` flag for updating
 - winking
@@ -16,6 +16,7 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 - don't attempt firmware rollbacks
 - timeout if owner is not present for firmware update
 - `--verbose` flag to configure log level instead of env variable
+- fix for multiple smartcard readers (@borgoat)
 
 ## [0.1.1] - 2022-01-07
 
diff --git a/Cargo.lock b/Cargo.lock
index c71d566..c7d431b 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -31,9 +31,9 @@ dependencies = [
 
 [[package]]
 name = "anyhow"
-version = "1.0.56"
+version = "1.0.57"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "4361135be9122e0870de935d7c439aef945b9f9ddd4199a553b5270b49c82a27"
+checksum = "08f9b8508dccb7687a1d6c4ce66b2b0ecef467c94667de27d8d7fe1f8d2a9cdc"
 
 [[package]]
 name = "ascii"
@@ -43,12 +43,11 @@ checksum = "bbf56136a5198c7b01a49e3afcbef6cf84597273d298f54432926024107b0109"
 
 [[package]]
 name = "atomic-polyfill"
-version = "0.1.6"
+version = "0.1.8"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "ee6adc1648f03fbc1bc1b5cf0f2fdfb5edbc96215b711edcfe6ce2641ef9b347"
+checksum = "e14bf7b4f565e5e717d7a7a65b2a05c0b8c96e4db636d6f780f03b15108cdd1b"
 dependencies = [
  "critical-section",
- "riscv-target",
 ]
 
 [[package]]
@@ -83,7 +82,7 @@ version = "0.2.5"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "5deb64efa5bd81e31fcd1938615a6d98c82eafcbcd787162b6f63b91d6bac5b3"
 dependencies = [
- "rustc_version",
+ "rustc_version 0.2.3",
 ]
 
 [[package]]
@@ -200,16 +199,16 @@ dependencies = [
 
 [[package]]
 name = "clap"
-version = "3.1.6"
+version = "3.1.18"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "d8c93436c21e4698bacadf42917db28b23017027a4deccb35dbe47a7e7840123"
+checksum = "d2dbdf4bdacb33466e854ce889eee8dfd5729abf7ccd7664d0a2d60cd384440b"
 dependencies = [
  "atty",
  "bitflags",
  "clap_derive",
+ "clap_lex",
  "indexmap",
  "lazy_static",
- "os_str_bytes",
  "strsim",
  "termcolor",
  "textwrap",
@@ -217,18 +216,18 @@ dependencies = [
 
 [[package]]
 name = "clap_complete"
-version = "3.1.1"
+version = "3.1.4"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "df6f3613c0a3cddfd78b41b10203eb322cb29b600cbdf808a7d3db95691b8e25"
+checksum = "da92e6facd8d73c22745a5d3cbb59bdf8e46e3235c923e516527d8e81eec14a4"
 dependencies = [
  "clap",
 ]
 
 [[package]]
 name = "clap_derive"
-version = "3.1.4"
+version = "3.1.18"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "da95d038ede1a964ce99f49cbe27a7fb538d1da595e4b4f70b8c8f338d17bf16"
+checksum = "25320346e922cffe59c0bbc5410c8d8784509efb321488971081313cb1e1a33c"
 dependencies = [
  "heck",
  "proc-macro-error",
@@ -237,6 +236,15 @@ dependencies = [
  "syn",
 ]
 
+[[package]]
+name = "clap_lex"
+version = "0.2.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "a37c35f1112dad5e6e0b1adaff798507497a18fceeb30cceb3bae7d1427b9213"
+dependencies = [
+ "os_str_bytes",
+]
+
 [[package]]
 name = "console"
 version = "0.15.0"
@@ -278,9 +286,9 @@ dependencies = [
 
 [[package]]
 name = "cpufeatures"
-version = "0.2.1"
+version = "0.2.2"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "95059428f66df56b63431fdb4e1947ed2190586af5c5a8a8b71122bdf5a7f469"
+checksum = "59a6001667ab124aebae2a495118e11d30984c3a653e99d86d58971708cf5e4b"
 dependencies = [
  "libc",
 ]
@@ -296,9 +304,9 @@ dependencies = [
 
 [[package]]
 name = "critical-section"
-version = "0.2.5"
+version = "0.2.7"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "01e191a5a6f6edad9b679777ef6b6c0f2bdd4a333f2ecb8f61c3e28109a03d70"
+checksum = "95da181745b56d4bd339530ec393508910c909c784e8962d15d722bacf0bcbcd"
 dependencies = [
  "bare-metal 1.0.0",
  "cfg-if",
@@ -360,9 +368,9 @@ dependencies = [
 
 [[package]]
 name = "ctrlc"
-version = "3.2.1"
+version = "3.2.2"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "a19c6cedffdc8c03a3346d723eb20bd85a13362bb96dc2ac000842c6381ec7bf"
+checksum = "b37feaa84e6861e00a1f5e5aa8da3ee56d605c9992d33e082786754828e20865"
 dependencies = [
  "nix",
  "winapi",
@@ -548,9 +556,9 @@ dependencies = [
 
 [[package]]
 name = "ff"
-version = "0.11.0"
+version = "0.11.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "b2958d04124b9f27f175eaeb9a9f383d026098aa837eadd8ba22c11f13a05b9e"
+checksum = "131655483be284720a17d74ff97592b8e76576dc25563148601df2d7c9080924"
 dependencies = [
  "rand_core",
  "subtle",
@@ -558,9 +566,9 @@ dependencies = [
 
 [[package]]
 name = "flate2"
-version = "1.0.22"
+version = "1.0.23"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "1e6988e897c1c9c485f43b47a529cef42fde0547f9d8d41a7062518f1d8fc53f"
+checksum = "b39522e96686d38f4bc984b9198e3a0613264abaebaff2c5c918bfa6b6da09af"
 dependencies = [
  "cfg-if",
  "crc32fast",
@@ -605,9 +613,9 @@ dependencies = [
 
 [[package]]
 name = "getrandom"
-version = "0.2.5"
+version = "0.2.6"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "d39cd93900197114fa1fcb7ae84ca742095eed9442088988ae74fa744e930e77"
+checksum = "9be70c98951c83b8d2f8f60d7065fa6d5146873094452a1008da8c2f1e4205ad"
 dependencies = [
  "cfg-if",
  "libc",
@@ -642,13 +650,14 @@ checksum = "ab5ef0d4909ef3724cc8cce6ccc8572c5c817592e9285f5464f8e86f8bd3726e"
 
 [[package]]
 name = "heapless"
-version = "0.7.10"
+version = "0.7.13"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "d076121838e03f862871315477528debffdb7462fb229216ecef91b1a3eb31eb"
+checksum = "8a08e755adbc0ad283725b29f4a4883deee15336f372d5f61fae59efec40f983"
 dependencies = [
  "atomic-polyfill",
  "hash32",
- "spin 0.9.2",
+ "rustc_version 0.4.0",
+ "spin 0.9.3",
  "stable_deref_trait",
 ]
 
@@ -681,9 +690,9 @@ checksum = "7ebdb29d2ea9ed0083cd8cece49bbd968021bd99b0849edb4a9a7ee0fdf6a4e0"
 
 [[package]]
 name = "hidapi"
-version = "1.3.4"
+version = "1.4.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "c2ec6bf425a5c3af047bb2a029de540a7d74cefa4761f14be67d7884dcd497b0"
+checksum = "38b1717343691998deb81766bfcd1dce6df0d5d6c37070b5a3de2bb6d39f7822"
 dependencies = [
  "cc",
  "libc",
@@ -731,9 +740,9 @@ dependencies = [
 
 [[package]]
 name = "indexmap"
-version = "1.8.0"
+version = "1.8.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "282a6247722caba404c065016bbfa522806e51714c34f5dfc3e4a3a46fcb4223"
+checksum = "0f647032dfaa1f8b6dc29bd3edb7bbef4861b8b8007ebb118d6db284fd59f6ee"
 dependencies = [
  "autocfg 1.1.0",
  "hashbrown",
@@ -772,15 +781,15 @@ dependencies = [
 
 [[package]]
 name = "itoa"
-version = "1.0.1"
+version = "1.0.2"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "1aab8fc367588b89dcee83ab0fd66b72b50b72fa1904d7095045ace2b0c81c35"
+checksum = "112c678d4050afce233f4f2852bb2eb519230b3cf12f33585275537d7e41578d"
 
 [[package]]
 name = "js-sys"
-version = "0.3.56"
+version = "0.3.57"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "a38fc24e30fd564ce974c02bf1d337caddff65be6cc4735a1f7eab22a7440f04"
+checksum = "671a26f820db17c2a2750743f1dd03bafd15b98c9f30c7c2628c024c05d73397"
 dependencies = [
  "wasm-bindgen",
 ]
@@ -796,9 +805,9 @@ dependencies = [
 
 [[package]]
 name = "libc"
-version = "0.2.120"
+version = "0.2.126"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "ad5c14e80759d0939d013e6ca49930e59fc53dd8e5009132f76240c179380c09"
+checksum = "349d5a591cd28b49e1d1037471617a32ddcda5731b99419008085f72d5a53836"
 
 [[package]]
 name = "libloading"
@@ -824,18 +833,19 @@ checksum = "7fb9b38af92608140b86b693604b9ffcc5824240a484d1ecd4795bacb2fe88f3"
 
 [[package]]
 name = "lock_api"
-version = "0.4.6"
+version = "0.4.7"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "88943dd7ef4a2e5a4bfa2753aaab3013e34ce2533d1996fb18ef591e315e2b3b"
+checksum = "327fa5b6a6940e4699ec49a9beae1ea4845c6bab9314e4f84ac68742139d8c53"
 dependencies = [
+ "autocfg 1.1.0",
  "scopeguard",
 ]
 
 [[package]]
 name = "log"
-version = "0.4.14"
+version = "0.4.17"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "51b9bbe6c47d51fc3e1a9b945965946b4c44142ab8792c50835a980d362c2710"
+checksum = "abb12e687cfb44aa40f41fc3978ef76448f9b6038cad6aef4259d3c095a2382e"
 dependencies = [
  "cfg-if",
 ]
@@ -892,18 +902,9 @@ checksum = "a3e378b66a060d48947b590737b30a1be76706c8dd7b8ba0f2fe3989c68a853f"
 
 [[package]]
 name = "memchr"
-version = "2.4.1"
+version = "2.5.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "308cc39be01b73d0d18f82a0e7b2a3df85245f84af96fdddc5d202d27e47b86a"
-
-[[package]]
-name = "memoffset"
-version = "0.6.5"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "5aa361d4faea93603064a027415f07bd8e1d5c88c9fbf68bf56a285428fd79ce"
-dependencies = [
- "autocfg 1.1.0",
-]
+checksum = "2dffe52ecf27772e601905b7522cb4ef790d2cc203488bbd0e2fe85fcb74566d"
 
 [[package]]
 name = "minimal-lexical"
@@ -913,12 +914,11 @@ checksum = "68354c5c6bd36d73ff3feceb05efa59b6acb7626617f4962be322a825e61f79a"
 
 [[package]]
 name = "miniz_oxide"
-version = "0.4.4"
+version = "0.5.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "a92518e98c078586bc6c934028adcca4c92a53d6a958196de835170a01d84e4b"
+checksum = "d2b29bd4bc3f33391105ebee3589c19197c4271e3e5a9ec9bfe8127eeff8f082"
 dependencies = [
  "adler",
- "autocfg 1.1.0",
 ]
 
 [[package]]
@@ -938,15 +938,13 @@ checksum = "546c37ac5d9e56f55e73b677106873d9d9f5190605e41a856503623648488cae"
 
 [[package]]
 name = "nix"
-version = "0.23.1"
+version = "0.24.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "9f866317acbd3a240710c63f065ffb1e4fd466259045ccb504130b7f668f35c6"
+checksum = "8f17df307904acd05aa8e32e97bb20f2a0df1728bbc2d771ae8f9a90463441e9"
 dependencies = [
  "bitflags",
- "cc",
  "cfg-if",
  "libc",
- "memoffset",
 ]
 
 [[package]]
@@ -1001,9 +999,9 @@ dependencies = [
 
 [[package]]
 name = "num-integer"
-version = "0.1.44"
+version = "0.1.45"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "d2cc698a63b549a70bc047073d2949cce27cd1c7b0a4a862d08a8031bc2801db"
+checksum = "225d3389fb3509a24c93f5c29eb6bde2586b98d9f016636dff58d7c6f7569cd9"
 dependencies = [
  "autocfg 1.1.0",
  "num-traits",
@@ -1011,9 +1009,9 @@ dependencies = [
 
 [[package]]
 name = "num-iter"
-version = "0.1.42"
+version = "0.1.43"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "b2021c8337a54d21aca0d59a92577a029af9431cb59b909b03252b9c164fad59"
+checksum = "7d03e6c028c5dc5cac6e2dec0efda81fc887605bb3d884578bb6d6bf7514e252"
 dependencies = [
  "autocfg 1.1.0",
  "num-integer",
@@ -1022,9 +1020,9 @@ dependencies = [
 
 [[package]]
 name = "num-traits"
-version = "0.2.14"
+version = "0.2.15"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "9a64b1ec5cda2586e284722486d802acf1f7dbdc623e2bfc57e65ca1cd099290"
+checksum = "578ede34cf02f8924ab9447f50c28075b4d3e5b269972345e7e0372b38c6cdcd"
 dependencies = [
  "autocfg 1.1.0",
  "libm",
@@ -1047,9 +1045,9 @@ dependencies = [
 
 [[package]]
 name = "once_cell"
-version = "1.10.0"
+version = "1.12.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "87f3e037eac156d1775da914196f0f37741a274155e34a0b7e427c35d2a2ecb9"
+checksum = "7709cef83f0c1f58f666e746a08b21e0085f7440fa6a29cc194d68aac97a4225"
 
 [[package]]
 name = "opaque-debug"
@@ -1059,12 +1057,9 @@ checksum = "624a8340c38c1b80fd549087862da4ba43e08858af025b236e509b6649fc13d5"
 
 [[package]]
 name = "os_str_bytes"
-version = "6.0.0"
+version = "6.0.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "8e22443d1643a904602595ba1cd8f7d896afe56d26712531c5ff73a15b2fbf64"
-dependencies = [
- "memchr",
-]
+checksum = "029d8d0b2f198229de29dca79676f2738ff952edf3fde542eb8bf94d8c21b435"
 
 [[package]]
 name = "p256"
@@ -1154,9 +1149,9 @@ dependencies = [
 
 [[package]]
 name = "pkcs11-uri"
-version = "0.1.2"
+version = "0.1.3"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "a9526819e4adfec37827faa03f495029b88cf46e1ada258ecb03185ee9ceef32"
+checksum = "b96d8bb9ae329b6b0b483a6680ac793ae8f2c4a47cd2fc426d8e81930135745a"
 dependencies = [
  "anyhow",
  "log",
@@ -1191,9 +1186,9 @@ dependencies = [
 
 [[package]]
 name = "pkg-config"
-version = "0.3.24"
+version = "0.3.25"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "58893f751c9b0412871a09abd62ecd2a00298c6c83befa223ef98c52aef40cbe"
+checksum = "1df8c4ec4b0627e53bdf214615ad287367e482558cf84b109250b37464dc03ae"
 
 [[package]]
 name = "ppv-lite86"
@@ -1237,11 +1232,11 @@ dependencies = [
 
 [[package]]
 name = "proc-macro2"
-version = "1.0.36"
+version = "1.0.39"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "c7342d5883fbccae1cc37a2353b09c87c9b0f3afd73f5fb9bba687a1f733b029"
+checksum = "c54b25569025b7fc9651de43004ae593a75ad88543b17178aa5e1b9c4f15f56f"
 dependencies = [
- "unicode-xid",
+ "unicode-ident",
 ]
 
 [[package]]
@@ -1252,9 +1247,9 @@ checksum = "a1d01941d82fa2ab50be1e79e6714289dd7cde78eba4c074bc5a4374f650dfe0"
 
 [[package]]
 name = "quote"
-version = "1.0.15"
+version = "1.0.18"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "864d3e96a899863136fc6e99f3d7cae289dafe43bf2c5ac19b70df7210c0a145"
+checksum = "a1feb54ed693b93a84e14094943b84b7c4eae204c512b7ccb95ab0c66d278ad1"
 dependencies = [
  "proc-macro2",
 ]
@@ -1303,18 +1298,18 @@ dependencies = [
 
 [[package]]
 name = "redox_syscall"
-version = "0.2.11"
+version = "0.2.13"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "8380fe0152551244f0747b1bf41737e0f8a74f97a14ccefd1148187271634f3c"
+checksum = "62f25bc4c7e55e0b0b7a1d43fb893f4fa1361d0abe38b9ce4f323c2adfe6ef42"
 dependencies = [
  "bitflags",
 ]
 
 [[package]]
 name = "regex"
-version = "1.5.5"
+version = "1.5.6"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "1a11647b6b25ff05a515cb92c365cec08801e83423a235b51e231e1808747286"
+checksum = "d83f127d94bdbcda4c8cc2e50f6f84f4b611f69c902699ca385a39c3a75f9ff1"
 dependencies = [
  "aho-corasick",
  "memchr",
@@ -1323,9 +1318,9 @@ dependencies = [
 
 [[package]]
 name = "regex-syntax"
-version = "0.6.25"
+version = "0.6.26"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "f497285884f3fcff424ffc933e56d7cbca511def0c9831a7f9b5f6153e3cc89b"
+checksum = "49b3de9ec5dc0a3417da371aab17d729997c15010e7fd24ff707773a33bddb64"
 
 [[package]]
 name = "remove_dir_all"
@@ -1415,7 +1410,16 @@ version = "0.2.3"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "138e3e0acb6c9fb258b19b67cb8abd63c00679d2851805ea151465464fe9030a"
 dependencies = [
- "semver",
+ "semver 0.9.0",
+]
+
+[[package]]
+name = "rustc_version"
+version = "0.4.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "bfa0f585226d2e68097d4f95d113b15b83a82e819ab25717ec0590d9584ef366"
+dependencies = [
+ "semver 1.0.9",
 ]
 
 [[package]]
@@ -1429,9 +1433,9 @@ dependencies = [
 
 [[package]]
 name = "rustls"
-version = "0.20.4"
+version = "0.20.6"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "4fbfeb8d0ddb84706bc597a5574ab8912817c52a397f819e5b614e2265206921"
+checksum = "5aab8ee6c7097ed6057f43c187a62418d0c05a4bd5f18b3571db50ee0f9ce033"
 dependencies = [
  "log",
  "ring",
@@ -1441,9 +1445,9 @@ dependencies = [
 
 [[package]]
 name = "ryu"
-version = "1.0.9"
+version = "1.0.10"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "73b4b750c782965c211b42f022f59af1fbceabdd026623714f104152f1ec149f"
+checksum = "f3f6f92acf49d1b98f7a81226834412ada05458b7364277387724a237f062695"
 
 [[package]]
 name = "scopeguard"
@@ -1483,6 +1487,12 @@ dependencies = [
  "semver-parser",
 ]
 
+[[package]]
+name = "semver"
+version = "1.0.9"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "8cb243bdfdb5936c8dc3c45762a19d12ab4550cdc753bc247637d4ec35a040fd"
+
 [[package]]
 name = "semver-parser"
 version = "0.7.0"
@@ -1491,28 +1501,27 @@ checksum = "388a1df253eca08550bef6c72392cfe7c30914bf41df5269b68cbd6ff8f570a3"
 
 [[package]]
 name = "serde"
-version = "1.0.136"
+version = "1.0.137"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "ce31e24b01e1e524df96f1c2fdd054405f8d7376249a5110886fb4b658484789"
+checksum = "61ea8d54c77f8315140a05f4c7237403bf38b72704d031543aa1d16abbf517d1"
 dependencies = [
  "serde_derive",
 ]
 
 [[package]]
 name = "serde-big-array"
-version = "0.3.2"
+version = "0.3.3"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "18b20e7752957bbe9661cff4e0bb04d183d0948cdab2ea58cdb9df36a61dfe62"
+checksum = "cd31f59f6fe2b0c055371bb2f16d7f0aa7d8881676c04a55b1596d1a17cd10a4"
 dependencies = [
  "serde",
- "serde_derive",
 ]
 
 [[package]]
 name = "serde_derive"
-version = "1.0.136"
+version = "1.0.137"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "08597e7152fcd306f41838ed3e37be9eaeed2b61c42e2117266a554fab4662f9"
+checksum = "1f26faba0c3959972377d3b2d306ee9f71faee9714294e41bb777f83f88578be"
 dependencies = [
  "proc-macro2",
  "quote",
@@ -1521,9 +1530,9 @@ dependencies = [
 
 [[package]]
 name = "serde_json"
-version = "1.0.79"
+version = "1.0.81"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "8e8d9fa5c3b304765ce1fd9c4c8a3de2c8db365a5b91be52f186efc675681d95"
+checksum = "9b7ce2b32a1aed03c558dc61a5cd328f15aff2dbc17daad8fb8af04d2100e15c"
 dependencies = [
  "itoa",
  "ryu",
@@ -1532,9 +1541,9 @@ dependencies = [
 
 [[package]]
 name = "serde_yaml"
-version = "0.8.23"
+version = "0.8.24"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "a4a521f2940385c165a24ee286aa8599633d162077a54bdcae2a6fd5a7bfa7a0"
+checksum = "707d15895415db6628332b737c838b88c598522e4dc70647e59b72312924aebc"
 dependencies = [
  "indexmap",
  "ryu",
@@ -1595,7 +1604,7 @@ checksum = "f2dd574626839106c320a323308629dcb1acfc96e32a8cba364ddc61ac23ee83"
 
 [[package]]
 name = "solo2"
-version = "0.1.2"
+version = "0.2.0"
 dependencies = [
  "anyhow",
  "atty",
@@ -1638,9 +1647,9 @@ checksum = "6e63cff320ae2c57904679ba7cb63280a3dc4613885beafb148ee7bf9aa9042d"
 
 [[package]]
 name = "spin"
-version = "0.9.2"
+version = "0.9.3"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "511254be0c5bcf062b019a6c89c01a664aa359ded62f78aa72c6fc137c0590e5"
+checksum = "c530c2b0d0bf8b69304b39fe2001993e267461948b890cd037d8ad4293fa1a0d"
 dependencies = [
  "lock_api",
 ]
@@ -1684,13 +1693,13 @@ checksum = "6bdef32e8150c2a081110b42772ffe7d7c9032b606bc226c8260fd97e0976601"
 
 [[package]]
 name = "syn"
-version = "1.0.89"
+version = "1.0.95"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "ea297be220d52398dcc07ce15a209fce436d361735ac1db700cab3b6cdfb9f54"
+checksum = "fbaf6116ab8924f39d52792136fb74fd60a80194cf1b1c6ffa6453eef1c3f942"
 dependencies = [
  "proc-macro2",
  "quote",
- "unicode-xid",
+ "unicode-ident",
 ]
 
 [[package]]
@@ -1746,18 +1755,18 @@ checksum = "b1141d4d61095b28419e22cb0bbf02755f5e54e0526f97f1e3d1d160e60885fb"
 
 [[package]]
 name = "thiserror"
-version = "1.0.30"
+version = "1.0.31"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "854babe52e4df1653706b98fcfc05843010039b406875930a70e4d9644e5c417"
+checksum = "bd829fe32373d27f76265620b5309d0340cb8550f523c1dda251d6298069069a"
 dependencies = [
  "thiserror-impl",
 ]
 
 [[package]]
 name = "thiserror-impl"
-version = "1.0.30"
+version = "1.0.31"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "aa32fd3f627f367fe16f893e2597ae3c05020f8bba2666a4e6ea73d377e5714b"
+checksum = "0396bc89e626244658bef819e22d0cc459e795a5ebe878e6ec336d1674a8d79a"
 dependencies = [
  "proc-macro2",
  "quote",
@@ -1790,9 +1799,9 @@ dependencies = [
 
 [[package]]
 name = "tinyvec"
-version = "1.5.1"
+version = "1.6.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "2c1c1d5a42b6245520c249549ec267180beaffcc0615401ac8e31853d4b6d8d2"
+checksum = "87cc5ceb3875bb20c2890005a4e226a4651264a5c75edb2421b52861a0a0cb50"
 dependencies = [
  "tinyvec_macros",
 ]
@@ -1805,9 +1814,9 @@ checksum = "cda74da7e1a664f795bb1f8a87ec406fb89a02522cf6e50620d016add6dbbf5c"
 
 [[package]]
 name = "toml"
-version = "0.5.8"
+version = "0.5.9"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "a31142970826733df8241ef35dc040ef98c679ab14d7c3e54d827099b3acecaa"
+checksum = "8d82e1a7758622a465f8cee077614c73484dac5b836c02ff6a40d5d1010324d7"
 dependencies = [
  "serde",
 ]
@@ -1820,9 +1829,15 @@ checksum = "dcf81ac59edc17cc8697ff311e8f5ef2d99fcbd9817b34cec66f90b6c3dfd987"
 
 [[package]]
 name = "unicode-bidi"
-version = "0.3.7"
+version = "0.3.8"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "099b7128301d285f79ddd55b9a83d5e6b9e97c92e0ea0daebee7263e932de992"
+
+[[package]]
+name = "unicode-ident"
+version = "1.0.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "1a01404663e3db436ed2746d9fefef640d868edae3cceb81c3b8d5732fda678f"
+checksum = "d22af068fba1eb5edcb4aea19d382b2a3deb4c8f9d475c589b6ada9e0fd493ee"
 
 [[package]]
 name = "unicode-normalization"
@@ -1841,9 +1856,9 @@ checksum = "3ed742d4ea2bd1176e236172c8429aaf54486e7ac098db29ffe6529e0ce50973"
 
 [[package]]
 name = "unicode-xid"
-version = "0.2.2"
+version = "0.2.3"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "8ccb82d61f80a663efe1f787a51b16b5a51e3314d6ac365b08639f52387b33f3"
+checksum = "957e51f3646910546462e67d5f7599b9e4fb8acdd304b087a6494730f9eebf04"
 
 [[package]]
 name = "untrusted"
@@ -1872,9 +1887,9 @@ dependencies = [
 
 [[package]]
 name = "uriparse"
-version = "0.6.3"
+version = "0.6.4"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "e515b1ada404168e145ac55afba3c42f04cf972201a8552d42e2abb17c1b7221"
+checksum = "0200d0fc04d809396c2ad43f3c95da3582a2556eba8d453c1087f4120ee352ff"
 dependencies = [
  "fnv",
  "lazy_static",
@@ -1933,9 +1948,9 @@ checksum = "1a143597ca7c7793eff794def352d41792a93c481eb1042423ff7ff72ba2c31f"
 
 [[package]]
 name = "wasm-bindgen"
-version = "0.2.79"
+version = "0.2.80"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "25f1af7423d8588a3d840681122e72e6a24ddbcb3f0ec385cac0d12d24256c06"
+checksum = "27370197c907c55e3f1a9fbe26f44e937fe6451368324e009cba39e139dc08ad"
 dependencies = [
  "cfg-if",
  "wasm-bindgen-macro",
@@ -1943,9 +1958,9 @@ dependencies = [
 
 [[package]]
 name = "wasm-bindgen-backend"
-version = "0.2.79"
+version = "0.2.80"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "8b21c0df030f5a177f3cba22e9bc4322695ec43e7257d865302900290bcdedca"
+checksum = "53e04185bfa3a779273da532f5025e33398409573f348985af9a1cbf3774d3f4"
 dependencies = [
  "bumpalo",
  "lazy_static",
@@ -1958,9 +1973,9 @@ dependencies = [
 
 [[package]]
 name = "wasm-bindgen-macro"
-version = "0.2.79"
+version = "0.2.80"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "2f4203d69e40a52ee523b2529a773d5ffc1dc0071801c87b3d270b471b80ed01"
+checksum = "17cae7ff784d7e83a2fe7611cfe766ecf034111b49deb850a3dc7699c08251f5"
 dependencies = [
  "quote",
  "wasm-bindgen-macro-support",
@@ -1968,9 +1983,9 @@ dependencies = [
 
 [[package]]
 name = "wasm-bindgen-macro-support"
-version = "0.2.79"
+version = "0.2.80"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "bfa8a30d46208db204854cadbb5d4baf5fcf8071ba5bf48190c3e59937962ebc"
+checksum = "99ec0dc7a4756fffc231aab1b9f2f578d23cd391390ab27f952ae0c9b3ece20b"
 dependencies = [
  "proc-macro2",
  "quote",
@@ -1981,15 +1996,15 @@ dependencies = [
 
 [[package]]
 name = "wasm-bindgen-shared"
-version = "0.2.79"
+version = "0.2.80"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "3d958d035c4438e28c70e4321a2911302f10135ce78a9c7834c0cab4123d06a2"
+checksum = "d554b7f530dee5964d9a9468d95c1f8b8acae4f282807e7d27d4b03099a46744"
 
 [[package]]
 name = "web-sys"
-version = "0.3.56"
+version = "0.3.57"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "c060b319f29dd25724f09a2ba1418f142f539b2be99fbf4d2d5a8f7330afb8eb"
+checksum = "7b17e741662c70c8bd24ac5c5b18de314a2c26c32bf8346ee1e6f53de919c283"
 dependencies = [
  "js-sys",
  "wasm-bindgen",
@@ -2018,9 +2033,9 @@ dependencies = [
 
 [[package]]
 name = "webpki-roots"
-version = "0.22.2"
+version = "0.22.3"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "552ceb903e957524388c4d3475725ff2c8b7960922063af6ce53c9a43da07449"
+checksum = "44d8de8415c823c8abd270ad483c6feeac771fad964890779f9a8cb24fbbc1bf"
 dependencies = [
  "webpki",
 ]
diff --git a/Cargo.toml b/Cargo.toml
index d55178f..996cae8 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -1,9 +1,9 @@
 [package]
 name = "solo2"
-version = "0.1.2"
+version = "0.2.0"
 authors = ["SoloKeys, built with Trussed®."]
 edition = "2021"
-rust-version = "1.56"
+rust-version = "1.60"
 repository = "https://github.com/solokeys/solo2-cli"
 description = "Library and CLI for the SoloKeys Solo 2 security key"
 license = "Apache-2.0 OR MIT"
diff --git a/src/apps/oath.rs b/src/apps/oath.rs
index 8e7e709..954875e 100644
--- a/src/apps/oath.rs
+++ b/src/apps/oath.rs
@@ -170,6 +170,21 @@ pub struct Credential {
     pub digits: u8,
 }
 
+impl Credential {
+    pub fn default_totp(label: &str, secret32: &str) -> Result<Self> {
+        let secret = Secret::from_base32(&secret32.to_uppercase(), Digest::default())?;
+
+        Ok(Self {
+            label: label.to_string(),
+            issuer: None,
+            secret,
+            kind: Kind::Totp(Totp { period: 30 }),
+            algorithm: Digest::default(),
+            digits: 6,
+        })
+    }
+}
+
 // #[derive(Clone, Debug, PartialEq)]
 // pub struct CredentialId {
 //     pub label: String,
@@ -217,6 +232,21 @@ pub struct Authenticate {
     pub timestamp: u64,
 }
 
+impl Authenticate {
+    pub fn with_label(label: &str) -> Authenticate {
+        use std::time::SystemTime;
+        Self {
+            label: label.to_string(),
+            timestamp: {
+                let since_epoch = SystemTime::now()
+                    .duration_since(SystemTime::UNIX_EPOCH)
+                    .unwrap();
+                since_epoch.as_secs()
+            },
+        }
+    }
+}
+
 pub enum Command {
     Register(Credential),
     // Authenticate(CredentialId),
diff --git a/src/bin/solo2/cli.rs b/src/bin/solo2/cli.rs
index 4a78330..5ab3c39 100644
--- a/src/bin/solo2/cli.rs
+++ b/src/bin/solo2/cli.rs
@@ -41,7 +41,8 @@ pub struct GlobalOptions {
         global = true,
         help_heading = "SELECTION",
         long,
-        short,
+        // would conflict with OATH's algorithm flag
+        // short,
         conflicts_with = "uuid"
     )]
     pub all: bool,
diff --git a/src/pki/dev.rs b/src/pki/dev.rs
index 0541cf1..28870c4 100644
--- a/src/pki/dev.rs
+++ b/src/pki/dev.rs
@@ -84,16 +84,17 @@ pub fn generate_selfsigned_fido() -> ([u8; 16], [u8; 36], String, rcgen::Certifi
     // NB: for self-signed, rcgen does not follow this instruction
     tbs.use_authority_key_identifier_extension = true;
 
-    let mut extensions = Vec::new();
-    // AAGUID
-    // https://www.w3.org/TR/webauthn-2/#sctn-packed-attestation-cert-requirements
-    // id-fido-gen-ce-aaguid
-    // Not technically necessary, as we don't have "multiple models", just a new random key + cert.
-    extensions.push(rcgen::CustomExtension::from_oid_content(
-        // FIDO's PEN + 1.1.4
-        &[1, 3, 6, 1, 4, 1, 45724, 1, 1, 4],
-        yasna::construct_der(|writer| writer.write_bytes(aaguid.as_ref())),
-    ));
+    let extensions = vec![
+        // AAGUID
+        // https://www.w3.org/TR/webauthn-2/#sctn-packed-attestation-cert-requirements
+        // id-fido-gen-ce-aaguid
+        // Not technically necessary, as we don't have "multiple models", just a new random key + cert.
+        rcgen::CustomExtension::from_oid_content(
+            // FIDO's PEN + 1.1.4
+            &[1, 3, 6, 1, 4, 1, 45724, 1, 1, 4],
+            yasna::construct_der(|writer| writer.write_bytes(aaguid.as_ref())),
+        ),
+    ];
     // cf. the following, this is not necessary
     // https://groups.google.com/a/fidoalliance.org/g/fido-dev/c/pfuWJvM-OQQ
     // https://github.com/w3c/webauthn/issues/817