diff --git a/Cargo.lock b/Cargo.lock
index 02dc7f9..75a8e4a 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -17,18 +17,6 @@ version = "1.0.2"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "f26201604c87b1e01bd3d98f8d5d9a8fcbb815e8cedb41ffccbeb4bf593a35fe"
 
-[[package]]
-name = "aes"
-version = "0.7.5"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "9e8b47f52ea9bae42228d07ec09eb676433d7c4ed1ebdf0f1d1c29ed446f1ab8"
-dependencies = [
- "cfg-if",
- "cipher 0.3.0",
- "cpufeatures",
- "opaque-debug",
-]
-
 [[package]]
 name = "aes"
 version = "0.8.3"
@@ -36,7 +24,7 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "ac1f845298e95f983ff1944b728ae08b8cebab80d684f0a832ed0fc74dfa27e2"
 dependencies = [
  "cfg-if",
- "cipher 0.4.4",
+ "cipher",
  "cpufeatures",
  "zeroize",
 ]
@@ -47,8 +35,8 @@ version = "0.2.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "75e8bcc55e692d9a680b8ab2223f26dfc2f2e3f6288ad01fcab0678b06c7e1ff"
 dependencies = [
- "aes 0.8.3",
- "cipher 0.4.4",
+ "aes",
+ "cipher",
  "ghash",
  "zeroize",
 ]
@@ -139,7 +127,7 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "726535892e8eae7e70657b4c8ea93d26b8553afb1ce617caee529ef96d7dee6c"
 dependencies = [
  "proc-macro2",
- "quote 1.0.33",
+ "quote",
  "syn 1.0.109",
  "synstructure",
 ]
@@ -151,7 +139,7 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "2777730b2039ac0f95f093556e61b6d26cebed5393ca6f152717777cec3a42ed"
 dependencies = [
  "proc-macro2",
- "quote 1.0.33",
+ "quote",
  "syn 1.0.109",
 ]
 
@@ -162,7 +150,7 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "bc00ceb34980c03614e35a3a4e218276a0a824e911d07651cd0d858a51e8c0f0"
 dependencies = [
  "proc-macro2",
- "quote 1.0.33",
+ "quote",
  "syn 2.0.38",
 ]
 
@@ -224,19 +212,10 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "e0b121a9fe0df916e362fb3271088d071159cdf11db0e4182d02152850756eff"
 dependencies = [
  "proc-macro2",
- "quote 1.0.33",
+ "quote",
  "syn 2.0.38",
 ]
 
-[[package]]
-name = "block-buffer"
-version = "0.9.0"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "4152116fd6e9dadb291ae18fc1ec3575ed6d84c29642d97890f4b4a3417297e4"
-dependencies = [
- "generic-array",
-]
-
 [[package]]
 name = "block-buffer"
 version = "0.10.4"
@@ -246,22 +225,6 @@ dependencies = [
  "generic-array",
 ]
 
-[[package]]
-name = "block-modes"
-version = "0.8.1"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "2cb03d1bed155d89dce0f845b7899b18a9a163e148fd004e1c28421a783e2d8e"
-dependencies = [
- "block-padding",
- "cipher 0.3.0",
-]
-
-[[package]]
-name = "block-padding"
-version = "0.2.1"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "8d696c370c750c948ada61c69a0ee2cbbb9c50b1019ddb86d9317157a99c2cae"
-
 [[package]]
 name = "bumpalo"
 version = "3.14.0"
@@ -309,15 +272,6 @@ dependencies = [
  "windows-targets",
 ]
 
-[[package]]
-name = "cipher"
-version = "0.3.0"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "7ee52072ec15386f770805afd189a01c8841be8696bed250fa2f13c4c0d6dfb7"
-dependencies = [
- "generic-array",
-]
-
 [[package]]
 name = "cipher"
 version = "0.4.4"
@@ -358,7 +312,7 @@ checksum = "0862016ff20d69b84ef8247369fabf5c008a7417002411897d40ee1f4532b873"
 dependencies = [
  "heck",
  "proc-macro2",
- "quote 1.0.33",
+ "quote",
  "syn 2.0.38",
 ]
 
@@ -436,16 +390,6 @@ dependencies = [
  "typenum",
 ]
 
-[[package]]
-name = "crypto-mac"
-version = "0.11.1"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "b1d1a86f49236c215f271d40892d5fc950490551400b02ef360692c29815c714"
-dependencies = [
- "generic-array",
- "subtle",
-]
-
 [[package]]
 name = "data-encoding"
 version = "2.4.0"
@@ -486,7 +430,7 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "5fe87ce4529967e0ba1dcf8450bab64d97dfd5010a6256187ffe2e43e6f0e049"
 dependencies = [
  "proc-macro2",
- "quote 1.0.33",
+ "quote",
  "syn 2.0.38",
 ]
 
@@ -502,16 +446,7 @@ version = "0.8.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "ffdd80ce8ce993de27e9f063a444a4d53ce8e8db4c1f00cc03af5ad5a9867a1e"
 dependencies = [
- "cipher 0.4.4",
-]
-
-[[package]]
-name = "digest"
-version = "0.9.0"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "d3dd60d1080a57a05ab032377049e0591415d2b31afd7028356dbf3cc6dcb066"
-dependencies = [
- "generic-array",
+ "cipher",
 ]
 
 [[package]]
@@ -520,7 +455,7 @@ version = "0.10.7"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "9ed9a281f7bc9b7576e61468ba615a66a5c8cfdff42420a70aa82701a3b1e292"
 dependencies = [
- "block-buffer 0.10.4",
+ "block-buffer",
  "const-oid",
  "crypto-common",
  "subtle",
@@ -554,7 +489,7 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "487585f4d0c6655fe74905e2504d8ad6908e4db67f744eb140876906c2f3175d"
 dependencies = [
  "proc-macro2",
- "quote 1.0.33",
+ "quote",
  "syn 2.0.38",
 ]
 
@@ -565,7 +500,7 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "a4b1e0c257a9e9f25f90ff76d7a68360ed497ee519c8e428d1825ef0000799d4"
 dependencies = [
  "der",
- "digest 0.10.7",
+ "digest",
  "elliptic-curve",
  "rfc6979",
  "signature",
@@ -580,7 +515,7 @@ checksum = "d97ca172ae9dc9f9b779a6e3a65d308f2af74e5b8c921299075bdb4a0370e914"
 dependencies = [
  "base16ct",
  "crypto-bigint",
- "digest 0.10.7",
+ "digest",
  "ff",
  "generic-array",
  "group",
@@ -713,7 +648,7 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "89ca545a94061b6365f2c7355b4b32bd20df3ff95f02da9329b34ccc3bd6ee72"
 dependencies = [
  "proc-macro2",
- "quote 1.0.33",
+ "quote",
  "syn 2.0.38",
 ]
 
@@ -849,17 +784,7 @@ version = "0.12.3"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "791a029f6b9fc27657f6f188ec6e5e43f6911f6f878e0dc5501396e09809d437"
 dependencies = [
- "hmac 0.12.1",
-]
-
-[[package]]
-name = "hmac"
-version = "0.11.0"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "2a2a2320eb7ec0ebe8da8f744d7812d9fc4cb4d09344ac01898dbcb6a20ae69b"
-dependencies = [
- "crypto-mac",
- "digest 0.9.0",
+ "hmac",
 ]
 
 [[package]]
@@ -868,7 +793,7 @@ version = "0.12.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "6c49c37c09c17a53d937dfbb742eb3a961d65a994e6bcdcf37e7399d0cc8ab5e"
 dependencies = [
- "digest 0.10.7",
+ "digest",
 ]
 
 [[package]]
@@ -1059,18 +984,6 @@ version = "0.2.8"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "4ec2a862134d2a7d32d7983ddcdd1c4923530833c9f2ea1a44fc5fa473989058"
 
-[[package]]
-name = "libusb1-sys"
-version = "0.5.0"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "e22e89d08bbe6816c6c5d446203b859eba35b8fa94bf1b7edb2f6d25d43f023f"
-dependencies = [
- "cc",
- "libc",
- "pkg-config",
- "vcpkg",
-]
-
 [[package]]
 name = "linux-raw-sys"
 version = "0.4.8"
@@ -1297,7 +1210,7 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "a948666b637a0f465e8564c73e89d4dde00d72d4d473cc972f390fc3dcee7d9c"
 dependencies = [
  "proc-macro2",
- "quote 1.0.33",
+ "quote",
  "syn 2.0.38",
 ]
 
@@ -1349,8 +1262,8 @@ version = "0.12.2"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "f8ed6a7761f76e3b9f92dfb0a60a6a6477c61024b775147ff0973a02653abaf2"
 dependencies = [
- "digest 0.10.7",
- "hmac 0.12.1",
+ "digest",
+ "hmac",
 ]
 
 [[package]]
@@ -1453,21 +1366,6 @@ dependencies = [
  "elliptic-curve",
 ]
 
-[[package]]
-name = "proc-macro-hack"
-version = "0.4.3"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "d7f95648580798cc44ff8efb9bb0d7ee5205ea32e087b31b0732f3e8c2648ee2"
-dependencies = [
- "proc-macro-hack-impl",
-]
-
-[[package]]
-name = "proc-macro-hack-impl"
-version = "0.4.3"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "7be55bf0ae1635f4d7c7ddd6efc05c631e98a82104a73d35550bbc52db960027"
-
 [[package]]
 name = "proc-macro2"
 version = "1.0.68"
@@ -1483,12 +1381,6 @@ version = "1.2.3"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "a1d01941d82fa2ab50be1e79e6714289dd7cde78eba4c074bc5a4374f650dfe0"
 
-[[package]]
-name = "quote"
-version = "0.3.15"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "7a6e920b65c65f10b2ae65c831a81a073a89edd28c7cce89475bff467ab4167a"
-
 [[package]]
 name = "quote"
 version = "1.0.33"
@@ -1606,7 +1498,7 @@ version = "0.4.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "f8dd2a808d456c4a54e300a23e9f5a67e122c3024119acbfd73e3bf664491cb2"
 dependencies = [
- "hmac 0.12.1",
+ "hmac",
  "subtle",
 ]
 
@@ -1644,7 +1536,7 @@ checksum = "6ab43bb47d23c1a631b4b680199a45255dce26fa9ab2fa902581f624ff13e6a8"
 dependencies = [
  "byteorder",
  "const-oid",
- "digest 0.10.7",
+ "digest",
  "num-bigint-dig",
  "num-integer",
  "num-iter",
@@ -1669,16 +1561,6 @@ dependencies = [
  "winapi",
 ]
 
-[[package]]
-name = "rusb"
-version = "0.8.1"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "d9a5084628cc5be77b1c750b3e5ee0cc519d2f2491b3f06b78b3aac3328b00ad"
-dependencies = [
- "libc",
- "libusb1-sys",
-]
-
 [[package]]
 name = "rust_util"
 version = "0.6.42"
@@ -1843,7 +1725,7 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "4eca7ac642d82aa35b60049a6eccb4be6be75e599bd2e9adb5f875a737654af2"
 dependencies = [
  "proc-macro2",
- "quote 1.0.33",
+ "quote",
  "syn 2.0.38",
 ]
 
@@ -1870,19 +1752,6 @@ dependencies = [
  "serde",
 ]
 
-[[package]]
-name = "sha-1"
-version = "0.9.8"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "99cd6713db3cf16b6c84e06321e049a9b9f699826e16096d23bbcc44d15d51a6"
-dependencies = [
- "block-buffer 0.9.0",
- "cfg-if",
- "cpufeatures",
- "digest 0.9.0",
- "opaque-debug",
-]
-
 [[package]]
 name = "sha1"
 version = "0.10.6"
@@ -1891,7 +1760,7 @@ checksum = "e3bf829a2d51ab4a5ddf1352d8470c140cadc8301b2ae1789db023f01cedd6ba"
 dependencies = [
  "cfg-if",
  "cpufeatures",
- "digest 0.10.7",
+ "digest",
 ]
 
 [[package]]
@@ -1902,7 +1771,7 @@ checksum = "793db75ad2bcafc3ffa7c68b215fee268f537982cd901d132f89c6343f3a3dc8"
 dependencies = [
  "cfg-if",
  "cpufeatures",
- "digest 0.10.7",
+ "digest",
 ]
 
 [[package]]
@@ -1924,7 +1793,7 @@ version = "2.1.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "5e1788eed21689f9cf370582dfc467ef36ed9c707f073528ddafa8d83e3b8500"
 dependencies = [
- "digest 0.10.7",
+ "digest",
  "rand_core",
 ]
 
@@ -1995,27 +1864,6 @@ version = "0.10.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "73473c0e59e6d5812c5dfe2a064a6444949f089e20eec9a2e5506596494e4623"
 
-[[package]]
-name = "structure"
-version = "0.1.2"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "a8379aeb9cf8935b018b14d9191b15096e984ad8b77424b9bce075ea15d1fa59"
-dependencies = [
- "byteorder",
- "proc-macro-hack",
- "structure-macro-impl",
-]
-
-[[package]]
-name = "structure-macro-impl"
-version = "0.1.2"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "e0c0529f2429c8bb5878688fffab7f700087f4bd47906e6acf03fd7361f77aca"
-dependencies = [
- "proc-macro-hack",
- "quote 0.3.15",
-]
-
 [[package]]
 name = "subtle"
 version = "2.4.1"
@@ -2029,7 +1877,7 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "72b64191b275b66ffe2469e8af2c1cfe3bafa67b529ead792a6d0160888b4237"
 dependencies = [
  "proc-macro2",
- "quote 1.0.33",
+ "quote",
  "unicode-ident",
 ]
 
@@ -2040,7 +1888,7 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "e96b79aaa137db8f61e26363a0c9b47d8b4ec75da28b7d1d614c2303e232408b"
 dependencies = [
  "proc-macro2",
- "quote 1.0.33",
+ "quote",
  "unicode-ident",
 ]
 
@@ -2051,7 +1899,7 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "f36bdaa60a83aca3921b5259d5400cbf5e90fc51931376a9bd4a0eb79aa7210f"
 dependencies = [
  "proc-macro2",
- "quote 1.0.33",
+ "quote",
  "syn 1.0.109",
  "unicode-xid",
 ]
@@ -2127,7 +1975,7 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "10712f02019e9288794769fba95cd6847df9874d49d871d062172f9dd41bc4cc"
 dependencies = [
  "proc-macro2",
- "quote 1.0.33",
+ "quote",
  "syn 2.0.38",
 ]
 
@@ -2182,7 +2030,6 @@ dependencies = [
  "sha256",
  "simpledateformat",
  "x509-parser",
- "yubico_manager",
  "yubikey",
  "zeroize",
 ]
@@ -2412,7 +2259,7 @@ dependencies = [
  "log",
  "once_cell",
  "proc-macro2",
- "quote 1.0.33",
+ "quote",
  "syn 2.0.38",
  "wasm-bindgen-shared",
 ]
@@ -2435,7 +2282,7 @@ version = "0.2.87"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "dee495e55982a3bd48105a7b947fd2a9b4a8ae3010041b9e0faab3f9cd028f1d"
 dependencies = [
- "quote 1.0.33",
+ "quote",
  "wasm-bindgen-macro-support",
 ]
 
@@ -2446,7 +2293,7 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "54681b18a46765f095758388f2d0cf16eb8d4169b639ab575a8f5693af210c7b"
 dependencies = [
  "proc-macro2",
- "quote 1.0.33",
+ "quote",
  "syn 2.0.38",
  "wasm-bindgen-backend",
  "wasm-bindgen-shared",
@@ -2611,22 +2458,6 @@ dependencies = [
  "time",
 ]
 
-[[package]]
-name = "yubico_manager"
-version = "0.9.0"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "ff64094218f27836b8683bd93fa7f257475d217449eb7629746fa8eaee068eee"
-dependencies = [
- "aes 0.7.5",
- "bitflags 1.3.2",
- "block-modes",
- "hmac 0.11.0",
- "rand",
- "rusb",
- "sha-1",
- "structure",
-]
-
 [[package]]
 name = "yubikey"
 version = "0.8.0"
@@ -2638,7 +2469,7 @@ dependencies = [
  "des",
  "ecdsa",
  "elliptic-curve",
- "hmac 0.12.1",
+ "hmac",
  "log",
  "nom",
  "num-bigint-dig",
@@ -2676,6 +2507,6 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "ce36e65b0d2999d2aafac989fb249189a141aee1f53c612c1f37d72631959f69"
 dependencies = [
  "proc-macro2",
- "quote 1.0.33",
+ "quote",
  "syn 2.0.38",
 ]
diff --git a/Cargo.toml b/Cargo.toml
index b6e1e02..264bc99 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -27,7 +27,6 @@ serde_json = "1.0.93"
 sha256 = "1.4.0"
 simpledateformat = "0.1.4"
 x509-parser = "0.15.1"
-yubico_manager = "0.9.0"
 yubikey = { version = "0.8.0", features = ["untested"] }
 zeroize = "1.6.0"