From 640aa93be27a821bd553588d1663c65d8bc77dfe Mon Sep 17 00:00:00 2001
From: Xander Bil <xander@biltopia.org>
Date: Tue, 4 Jun 2024 23:48:58 +0200
Subject: [PATCH] SIG(0) authentication with zauth (ssh keys)

---
 Cargo.lock          | 978 +++++++++++++++++++++++++++++++++-----------
 Cargo.toml          |   3 +-
 src/auth.rs         |  15 -
 src/authenticate.rs |  49 +++
 src/db/lib.rs       |   3 -
 src/db/models.rs    |   2 +-
 src/errors.rs       |  11 +
 src/main.rs         |   6 +-
 src/parser.rs       |   2 +-
 src/resolver.rs     |  17 +-
 src/sig.rs          |  51 +++
 11 files changed, 867 insertions(+), 270 deletions(-)
 delete mode 100644 src/auth.rs
 create mode 100644 src/authenticate.rs
 create mode 100644 src/sig.rs

diff --git a/Cargo.lock b/Cargo.lock
index 68590f0..5d0d18d 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -17,6 +17,18 @@ version = "1.0.2"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "f26201604c87b1e01bd3d98f8d5d9a8fcbb815e8cedb41ffccbeb4bf593a35fe"
 
+[[package]]
+name = "atomic-waker"
+version = "1.1.2"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "1505bd5d3d116872e7271a6d4e16d81d0c8570876c8de68093a09ac269d8aac0"
+
+[[package]]
+name = "autocfg"
+version = "1.3.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "0c4b4d0bd25bd0b74681c0ad21497610ce1b7c91b1022cd21c80c6fbdd9476b0"
+
 [[package]]
 name = "backtrace"
 version = "0.3.69"
@@ -32,12 +44,6 @@ dependencies = [
  "rustc-demangle",
 ]
 
-[[package]]
-name = "base64"
-version = "0.12.3"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "3441f0f7b02788e948e47f457ca01f1d7e6d92c693bc132c22b087d3141c03ff"
-
 [[package]]
 name = "base64"
 version = "0.22.0"
@@ -45,52 +51,28 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "9475866fec1451be56a3c2400fd081ff546538961565ccb5b7142cbd22bc7a51"
 
 [[package]]
-name = "base64ct"
+name = "bitflags"
+version = "1.3.2"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "bef38d45163c2f1dde094a7dfd33ccf595c92905c8f8f4fdc18d06fb1037718a"
+
+[[package]]
+name = "bitflags"
+version = "2.5.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "cf4b9d6a944f767f8e5e0db018570623c85f3d925ac718db4e06d0187adb21c1"
+
+[[package]]
+name = "bumpalo"
+version = "3.16.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "79296716171880943b8470b5f8d03aa55eb2e645a4874bdbb28adb49162e012c"
+
+[[package]]
+name = "bytes"
 version = "1.6.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "8c3c1a368f70d6cf7302d78f8f7093da241fb8e8807c05cc9e51a125895a6d5b"
-
-[[package]]
-name = "block-buffer"
-version = "0.7.3"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "c0940dc441f31689269e10ac70eb1002a3a1d3ad1390e030043662eb7fe4688b"
-dependencies = [
- "block-padding",
- "byte-tools",
- "byteorder",
- "generic-array 0.12.4",
-]
-
-[[package]]
-name = "block-buffer"
-version = "0.10.4"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "3078c7629b62d3f0439517fa394996acacc5cbc91c5a20d8c658e77abd503a71"
-dependencies = [
- "generic-array 0.14.7",
-]
-
-[[package]]
-name = "block-padding"
-version = "0.1.5"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "fa79dedbb091f449f1f39e53edf88d5dbe95f895dae6135a8d7b881fb5af73f5"
-dependencies = [
- "byte-tools",
-]
-
-[[package]]
-name = "byte-tools"
-version = "0.3.1"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "e3b5ca7a04898ad4bcd41c90c5285445ff5b791899bb1b0abdd2a2aa791211d7"
-
-[[package]]
-name = "byteorder"
-version = "1.5.0"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "1fd0f2584146f6f2ef48085050886acf353beff7305ebd1ae69500e27c67f64b"
+checksum = "514de17de45fdb8dc022b1a7975556c53c86f9f0aa5f534b98977b171857c2c9"
 
 [[package]]
 name = "cc"
@@ -108,67 +90,20 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "baf1de4339761588bc0619e3cbc0120ee582ebb74b53b4efbf79117bd2da40fd"
 
 [[package]]
-name = "const-oid"
-version = "0.9.6"
+name = "core-foundation"
+version = "0.9.4"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "c2459377285ad874054d797f3ccebf984978aa39129f6eafde5cdc8315b612f8"
-
-[[package]]
-name = "cpufeatures"
-version = "0.2.12"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "53fe5e26ff1b7aef8bca9c6080520cfb8d9333c7568e1829cef191a9723e5504"
+checksum = "91e195e091a93c46f7102ec7818a2aa394e1e1771c3ab4825963fa03e45afb8f"
 dependencies = [
+ "core-foundation-sys",
  "libc",
 ]
 
 [[package]]
-name = "crypto-common"
-version = "0.1.6"
+name = "core-foundation-sys"
+version = "0.8.6"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "1bfb12502f3fc46cca1bb51ac28df9d618d813cdc3d2f25b9fe775a34af26bb3"
-dependencies = [
- "generic-array 0.14.7",
- "typenum",
-]
-
-[[package]]
-name = "curve25519-dalek"
-version = "4.1.2"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "0a677b8922c94e01bdbb12126b0bc852f00447528dee1782229af9c720c3f348"
-dependencies = [
- "cfg-if",
- "cpufeatures",
- "curve25519-dalek-derive",
- "digest 0.10.7",
- "fiat-crypto",
- "platforms",
- "rustc_version",
- "subtle",
- "zeroize",
-]
-
-[[package]]
-name = "curve25519-dalek-derive"
-version = "0.1.1"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "f46882e17999c6cc590af592290432be3bce0428cb0d5f8b6715e4dc7b383eb3"
-dependencies = [
- "proc-macro2",
- "quote",
- "syn",
-]
-
-[[package]]
-name = "der"
-version = "0.7.9"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "f55bf8e7b65898637379c1b74eb1551107c8294ed26d855ceb9fd1a09cfc9bc0"
-dependencies = [
- "const-oid",
- "zeroize",
-]
+checksum = "06ea2b9bc92be3c2baa9334a323ebca2d6f074ff852cd1d7b11064035cd3868f"
 
 [[package]]
 name = "deranged"
@@ -211,25 +146,6 @@ dependencies = [
  "syn",
 ]
 
-[[package]]
-name = "digest"
-version = "0.8.1"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "f3d0c8c8752312f9713efd397ff63acb9f85585afbf179282e720e7704954dd5"
-dependencies = [
- "generic-array 0.12.4",
-]
-
-[[package]]
-name = "digest"
-version = "0.10.7"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "9ed9a281f7bc9b7576e61468ba615a66a5c8cfdff42420a70aa82701a3b1e292"
-dependencies = [
- "block-buffer 0.10.4",
- "crypto-common",
-]
-
 [[package]]
 name = "dotenvy"
 version = "0.15.7"
@@ -237,58 +153,103 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "1aaf95b3e5c8f23aa320147307562d361db0ae0d51242340f558153b4eb2439b"
 
 [[package]]
-name = "ed25519"
-version = "2.2.3"
+name = "encoding_rs"
+version = "0.8.34"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "115531babc129696a58c64a4fef0a8bf9e9698629fb97e9e40767d235cfbcd53"
+checksum = "b45de904aa0b010bce2ab45264d0631681847fa7b6f2eaa7dab7619943bc4f59"
 dependencies = [
- "pkcs8",
- "signature",
+ "cfg-if",
 ]
 
 [[package]]
-name = "ed25519-dalek"
-version = "2.1.1"
+name = "equivalent"
+version = "1.0.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "4a3daa8e81a3963a60642bcc1f90a670680bd4a77535faa384e9d1c79d620871"
+checksum = "5443807d6dff69373d433ab9ef5378ad8df50ca6298caf15de6e52e24aaf54d5"
+
+[[package]]
+name = "errno"
+version = "0.3.9"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "534c5cf6194dfab3db3242765c03bbe257cf92f22b38f6bc0c58d59108a820ba"
 dependencies = [
- "curve25519-dalek",
- "ed25519",
- "serde",
- "sha2 0.10.8",
- "subtle",
- "zeroize",
+ "libc",
+ "windows-sys 0.52.0",
 ]
 
 [[package]]
-name = "fake-simd"
-version = "0.1.2"
+name = "fastrand"
+version = "2.1.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "e88a8acf291dafb59c2d96e8f59828f3838bb1a70398823ade51a84de6a6deed"
+checksum = "9fc0510504f03c51ada170672ac806f1f105a88aa97a5281117e1ddc3368e51a"
 
 [[package]]
-name = "fiat-crypto"
-version = "0.2.7"
+name = "fnv"
+version = "1.0.7"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "c007b1ae3abe1cb6f85a16305acd418b7ca6343b953633fee2b76d8f108b830f"
+checksum = "3f9eec918d3f24069decb9af1554cad7c880e2da24a9afd88aca000531ab82c1"
 
 [[package]]
-name = "generic-array"
-version = "0.12.4"
+name = "foreign-types"
+version = "0.3.2"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "ffdf9f34f1447443d37393cc6c2b8313aebddcd96906caf34e54c68d8e57d7bd"
+checksum = "f6f339eb8adc052cd2ca78910fda869aefa38d22d5cb648e6485e4d3fc06f3b1"
 dependencies = [
- "typenum",
+ "foreign-types-shared",
 ]
 
 [[package]]
-name = "generic-array"
-version = "0.14.7"
+name = "foreign-types-shared"
+version = "0.1.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "85649ca51fd72272d7821adaf274ad91c288277713d9c18820d8499a7ff69e9a"
+checksum = "00b0228411908ca8685dba7fc2cdd70ec9990a6e753e89b6ac91a84c40fbaf4b"
+
+[[package]]
+name = "form_urlencoded"
+version = "1.2.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "e13624c2627564efccf4934284bdd98cbaa14e79b0b5a141218e507b3a823456"
 dependencies = [
- "typenum",
- "version_check",
+ "percent-encoding",
+]
+
+[[package]]
+name = "futures-channel"
+version = "0.3.30"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "eac8f7d7865dcb88bd4373ab671c8cf4508703796caa2b1985a9ca867b3fcb78"
+dependencies = [
+ "futures-core",
+]
+
+[[package]]
+name = "futures-core"
+version = "0.3.30"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "dfc6580bb841c5a68e9ef15c77ccc837b40a7504914d52e47b8b0e9bbda25a1d"
+
+[[package]]
+name = "futures-sink"
+version = "0.3.30"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "9fb8e00e87438d937621c1c6269e53f536c14d3fbd6a042bb24879e57d474fb5"
+
+[[package]]
+name = "futures-task"
+version = "0.3.30"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "38d84fa142264698cdce1a9f9172cf383a0c82de1bddcf3092901442c4097004"
+
+[[package]]
+name = "futures-util"
+version = "0.3.30"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "3d6401deb83407ab3da39eba7e33987a73c3df0c82b4bb5813ee871c19c41d48"
+dependencies = [
+ "futures-core",
+ "futures-task",
+ "pin-project-lite",
+ "pin-utils",
 ]
 
 [[package]]
@@ -308,18 +269,174 @@ version = "0.28.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "4271d37baee1b8c7e4b708028c57d816cf9d2434acb33a549475f78c181f6253"
 
+[[package]]
+name = "h2"
+version = "0.4.5"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "fa82e28a107a8cc405f0839610bdc9b15f1e25ec7d696aa5cf173edbcb1486ab"
+dependencies = [
+ "atomic-waker",
+ "bytes",
+ "fnv",
+ "futures-core",
+ "futures-sink",
+ "http",
+ "indexmap",
+ "slab",
+ "tokio",
+ "tokio-util",
+ "tracing",
+]
+
+[[package]]
+name = "hashbrown"
+version = "0.14.5"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "e5274423e17b7c9fc20b6e7e208532f9b19825d82dfd615708b70edd83df41f1"
+
 [[package]]
 name = "hermit-abi"
 version = "0.3.9"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "d231dfb89cfffdbc30e7fc41579ed6066ad03abda9e567ccafae602b97ec5024"
 
+[[package]]
+name = "http"
+version = "1.1.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "21b9ddb458710bc376481b842f5da65cdf31522de232c1ca8146abce2a358258"
+dependencies = [
+ "bytes",
+ "fnv",
+ "itoa",
+]
+
+[[package]]
+name = "http-body"
+version = "1.0.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "1cac85db508abc24a2e48553ba12a996e87244a0395ce011e62b37158745d643"
+dependencies = [
+ "bytes",
+ "http",
+]
+
+[[package]]
+name = "http-body-util"
+version = "0.1.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "0475f8b2ac86659c21b64320d5d653f9efe42acd2a4e560073ec61a155a34f1d"
+dependencies = [
+ "bytes",
+ "futures-core",
+ "http",
+ "http-body",
+ "pin-project-lite",
+]
+
+[[package]]
+name = "httparse"
+version = "1.8.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "d897f394bad6a705d5f4104762e116a75639e470d80901eed05a860a95cb1904"
+
+[[package]]
+name = "hyper"
+version = "1.3.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "fe575dd17d0862a9a33781c8c4696a55c320909004a67a00fb286ba8b1bc496d"
+dependencies = [
+ "bytes",
+ "futures-channel",
+ "futures-util",
+ "h2",
+ "http",
+ "http-body",
+ "httparse",
+ "itoa",
+ "pin-project-lite",
+ "smallvec",
+ "tokio",
+ "want",
+]
+
+[[package]]
+name = "hyper-tls"
+version = "0.6.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "70206fc6890eaca9fde8a0bf71caa2ddfc9fe045ac9e5c70df101a7dbde866e0"
+dependencies = [
+ "bytes",
+ "http-body-util",
+ "hyper",
+ "hyper-util",
+ "native-tls",
+ "tokio",
+ "tokio-native-tls",
+ "tower-service",
+]
+
+[[package]]
+name = "hyper-util"
+version = "0.1.5"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "7b875924a60b96e5d7b9ae7b066540b1dd1cbd90d1828f54c92e02a283351c56"
+dependencies = [
+ "bytes",
+ "futures-channel",
+ "futures-util",
+ "http",
+ "http-body",
+ "hyper",
+ "pin-project-lite",
+ "socket2",
+ "tokio",
+ "tower",
+ "tower-service",
+ "tracing",
+]
+
+[[package]]
+name = "idna"
+version = "0.5.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "634d9b1461af396cad843f47fdba5597a4f9e6ddd4bfb6ff5d85028c25cb12f6"
+dependencies = [
+ "unicode-bidi",
+ "unicode-normalization",
+]
+
+[[package]]
+name = "indexmap"
+version = "2.2.6"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "168fb715dda47215e360912c096649d23d58bf392ac62f73919e831745e40f26"
+dependencies = [
+ "equivalent",
+ "hashbrown",
+]
+
+[[package]]
+name = "ipnet"
+version = "2.9.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "8f518f335dce6725a761382244631d86cf0ccb2863413590b31338feb467f9c3"
+
 [[package]]
 name = "itoa"
 version = "1.0.10"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "b1a46d1a171d865aa5f83f92695765caa047a9b4cbae2cbf37dbd613a793fd4c"
 
+[[package]]
+name = "js-sys"
+version = "0.3.69"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "29c15563dc2726973df627357ce0c9ddddbea194836909d655df6a75d2cf296d"
+dependencies = [
+ "wasm-bindgen",
+]
+
 [[package]]
 name = "libc"
 version = "0.2.153"
@@ -336,12 +453,30 @@ dependencies = [
  "vcpkg",
 ]
 
+[[package]]
+name = "linux-raw-sys"
+version = "0.4.14"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "78b3ae25bc7c8c38cec158d1f2757ee79e9b3740fbc7ccf0e59e4b08d793fa89"
+
+[[package]]
+name = "log"
+version = "0.4.21"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "90ed8c1e510134f979dbc4f070f87d4313098b704861a105fe34231c70a3901c"
+
 [[package]]
 name = "memchr"
 version = "2.7.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "523dc4f511e55ab87b694dc30d0f820d60906ef06413f93d4d7a1385599cc149"
 
+[[package]]
+name = "mime"
+version = "0.3.17"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "6877bb514081ee2a7ff5ef9de3281f14a4dd4bceac4c09388074a6b5df8a139a"
+
 [[package]]
 name = "miniz_oxide"
 version = "0.7.2"
@@ -362,6 +497,23 @@ dependencies = [
  "windows-sys 0.48.0",
 ]
 
+[[package]]
+name = "native-tls"
+version = "0.2.12"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "a8614eb2c83d59d1c8cc974dd3f920198647674a0a035e1af1fa58707e317466"
+dependencies = [
+ "libc",
+ "log",
+ "openssl",
+ "openssl-probe",
+ "openssl-sys",
+ "schannel",
+ "security-framework",
+ "security-framework-sys",
+ "tempfile",
+]
+
 [[package]]
 name = "num-conv"
 version = "0.1.0"
@@ -388,10 +540,80 @@ dependencies = [
 ]
 
 [[package]]
-name = "opaque-debug"
-version = "0.2.3"
+name = "once_cell"
+version = "1.19.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "2839e79665f131bdb5782e51f2c6c9599c133c6098982a54c794358bf432529c"
+checksum = "3fdb12b2476b595f9358c5161aa467c2438859caa136dec86c26fdd2efe17b92"
+
+[[package]]
+name = "openssl"
+version = "0.10.64"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "95a0481286a310808298130d22dd1fef0fa571e05a8f44ec801801e84b216b1f"
+dependencies = [
+ "bitflags 2.5.0",
+ "cfg-if",
+ "foreign-types",
+ "libc",
+ "once_cell",
+ "openssl-macros",
+ "openssl-sys",
+]
+
+[[package]]
+name = "openssl-macros"
+version = "0.1.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "a948666b637a0f465e8564c73e89d4dde00d72d4d473cc972f390fc3dcee7d9c"
+dependencies = [
+ "proc-macro2",
+ "quote",
+ "syn",
+]
+
+[[package]]
+name = "openssl-probe"
+version = "0.1.5"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "ff011a302c396a5197692431fc1948019154afc178baf7d8e37367442a4601cf"
+
+[[package]]
+name = "openssl-sys"
+version = "0.9.102"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "c597637d56fbc83893a35eb0dd04b2b8e7a50c91e64e9493e398b5df4fb45fa2"
+dependencies = [
+ "cc",
+ "libc",
+ "pkg-config",
+ "vcpkg",
+]
+
+[[package]]
+name = "percent-encoding"
+version = "2.3.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "e3148f5046208a5d56bcfc03053e3ca6334e51da8dfb19b6cdc8b306fae3283e"
+
+[[package]]
+name = "pin-project"
+version = "1.1.5"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "b6bf43b791c5b9e34c3d182969b4abb522f9343702850a2e57f460d00d09b4b3"
+dependencies = [
+ "pin-project-internal",
+]
+
+[[package]]
+name = "pin-project-internal"
+version = "1.1.5"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "2f38a4412a78282e09a2cf38d195ea5420d15ba0602cb375210efbc877243965"
+dependencies = [
+ "proc-macro2",
+ "quote",
+ "syn",
+]
 
 [[package]]
 name = "pin-project-lite"
@@ -400,14 +622,10 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "8afb450f006bf6385ca15ef45d71d2288452bc3683ce2e2cacc0d18e4be60b58"
 
 [[package]]
-name = "pkcs8"
-version = "0.10.2"
+name = "pin-utils"
+version = "0.1.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "f950b2377845cebe5cf8b5165cb3cc1a5e0fa5cfa3e1f7f55707d8fd82e0a7b7"
-dependencies = [
- "der",
- "spki",
-]
+checksum = "8b870d8c151b6f2fb93e84a13146138f05d02ed11c7e7c54f8826aaaf7c9f184"
 
 [[package]]
 name = "pkg-config"
@@ -415,12 +633,6 @@ version = "0.3.30"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "d231b230927b5e4ad203db57bbcbee2802f6bce620b1e4a9024a07d94e2907ec"
 
-[[package]]
-name = "platforms"
-version = "3.4.0"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "db23d408679286588f4d4644f965003d056e3dd5abcaaa938116871d7ce2fee7"
-
 [[package]]
 name = "powerfmt"
 version = "0.2.0"
@@ -446,12 +658,45 @@ dependencies = [
 ]
 
 [[package]]
-name = "rand_core"
-version = "0.6.4"
+name = "reqwest"
+version = "0.12.4"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "ec0be4795e2f6a28069bec0b5ff3e2ac9bafc99e6a9a7dc3547996c5c816922c"
+checksum = "566cafdd92868e0939d3fb961bd0dc25fcfaaed179291093b3d43e6b3150ea10"
 dependencies = [
- "getrandom",
+ "base64",
+ "bytes",
+ "encoding_rs",
+ "futures-core",
+ "futures-util",
+ "h2",
+ "http",
+ "http-body",
+ "http-body-util",
+ "hyper",
+ "hyper-tls",
+ "hyper-util",
+ "ipnet",
+ "js-sys",
+ "log",
+ "mime",
+ "native-tls",
+ "once_cell",
+ "percent-encoding",
+ "pin-project-lite",
+ "rustls-pemfile",
+ "serde",
+ "serde_json",
+ "serde_urlencoded",
+ "sync_wrapper",
+ "system-configuration",
+ "tokio",
+ "tokio-native-tls",
+ "tower-service",
+ "url",
+ "wasm-bindgen",
+ "wasm-bindgen-futures",
+ "web-sys",
+ "winreg",
 ]
 
 [[package]]
@@ -476,19 +721,71 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "d626bb9dae77e28219937af045c257c28bfd3f69333c512553507f5f9798cb76"
 
 [[package]]
-name = "rustc_version"
-version = "0.4.0"
+name = "rustix"
+version = "0.38.34"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "bfa0f585226d2e68097d4f95d113b15b83a82e819ab25717ec0590d9584ef366"
+checksum = "70dc5ec042f7a43c4a73241207cecc9873a06d45debb38b329f8541d85c2730f"
 dependencies = [
- "semver",
+ "bitflags 2.5.0",
+ "errno",
+ "libc",
+ "linux-raw-sys",
+ "windows-sys 0.52.0",
 ]
 
 [[package]]
-name = "semver"
-version = "1.0.22"
+name = "rustls-pemfile"
+version = "2.1.2"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "92d43fe69e652f3df9bdc2b85b2854a0825b86e4fb76bc44d945137d053639ca"
+checksum = "29993a25686778eb88d4189742cd713c9bce943bc54251a33509dc63cbacf73d"
+dependencies = [
+ "base64",
+ "rustls-pki-types",
+]
+
+[[package]]
+name = "rustls-pki-types"
+version = "1.7.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "976295e77ce332211c0d24d92c0e83e50f5c5f046d11082cea19f3df13a3562d"
+
+[[package]]
+name = "ryu"
+version = "1.0.18"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "f3cb5ba0dc43242ce17de99c180e96db90b235b8a9fdc9543c96d2209116bd9f"
+
+[[package]]
+name = "schannel"
+version = "0.1.23"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "fbc91545643bcf3a0bbb6569265615222618bdf33ce4ffbbd13c4bbd4c093534"
+dependencies = [
+ "windows-sys 0.52.0",
+]
+
+[[package]]
+name = "security-framework"
+version = "2.11.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "c627723fd09706bacdb5cf41499e95098555af3c3c29d014dc3c458ef6be11c0"
+dependencies = [
+ "bitflags 2.5.0",
+ "core-foundation",
+ "core-foundation-sys",
+ "libc",
+ "security-framework-sys",
+]
+
+[[package]]
+name = "security-framework-sys"
+version = "2.11.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "317936bbbd05227752583946b9e66d7ce3b489f84e11a94a510b4437fef407d7"
+dependencies = [
+ "core-foundation-sys",
+ "libc",
+]
 
 [[package]]
 name = "serde"
@@ -511,37 +808,43 @@ dependencies = [
 ]
 
 [[package]]
-name = "sha2"
-version = "0.8.2"
+name = "serde_json"
+version = "1.0.117"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "a256f46ea78a0c0d9ff00077504903ac881a1dafdc20da66545699e7776b3e69"
+checksum = "455182ea6142b14f93f4bc5320a2b31c1f266b66a4a5c858b013302a5d8cbfc3"
 dependencies = [
- "block-buffer 0.7.3",
- "digest 0.8.1",
- "fake-simd",
- "opaque-debug",
+ "itoa",
+ "ryu",
+ "serde",
 ]
 
 [[package]]
-name = "sha2"
-version = "0.10.8"
+name = "serde_urlencoded"
+version = "0.7.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "793db75ad2bcafc3ffa7c68b215fee268f537982cd901d132f89c6343f3a3dc8"
+checksum = "d3491c14715ca2294c4d6a88f15e84739788c1d030eed8c110436aafdaa2f3fd"
 dependencies = [
- "cfg-if",
- "cpufeatures",
- "digest 0.10.7",
+ "form_urlencoded",
+ "itoa",
+ "ryu",
+ "serde",
 ]
 
 [[package]]
-name = "signature"
-version = "2.2.0"
+name = "slab"
+version = "0.4.9"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "77549399552de45a898a580c1b41d445bf730df867cc44e6c0233bbc4b8329de"
+checksum = "8f92a496fb766b417c996b9c5e57daf2f7ad3b0bebe1ccfca4856390e3d3bb67"
 dependencies = [
- "rand_core",
+ "autocfg",
 ]
 
+[[package]]
+name = "smallvec"
+version = "1.13.2"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "3c5e1a9a646d36c3599cd173a41282daf47c44583ad367b8e6837255952e5c67"
+
 [[package]]
 name = "socket2"
 version = "0.5.6"
@@ -558,33 +861,6 @@ version = "0.9.8"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "6980e8d7511241f8acf4aebddbb1ff938df5eebe98691418c4468d0b72a96a67"
 
-[[package]]
-name = "spki"
-version = "0.7.3"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "d91ed6c858b01f942cd56b37a94b3e0a1798290327d1236e4d9cf4eaca44d29d"
-dependencies = [
- "base64ct",
- "der",
-]
-
-[[package]]
-name = "sshkeys"
-version = "0.3.2"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "c926cb006a77964474a13a86aa0135ea82c9fd43e6793a1151cc54143db6637c"
-dependencies = [
- "base64 0.12.3",
- "byteorder",
- "sha2 0.8.2",
-]
-
-[[package]]
-name = "subtle"
-version = "2.5.0"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "81cdd64d312baedb58e21336b31bc043b77e01cc99033ce76ef539f78e965ebc"
-
 [[package]]
 name = "syn"
 version = "2.0.49"
@@ -596,6 +872,45 @@ dependencies = [
  "unicode-ident",
 ]
 
+[[package]]
+name = "sync_wrapper"
+version = "0.1.2"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "2047c6ded9c721764247e62cd3b03c09ffc529b2ba5b10ec482ae507a4a70160"
+
+[[package]]
+name = "system-configuration"
+version = "0.5.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "ba3a3adc5c275d719af8cb4272ea1c4a6d668a777f37e115f6d11ddbc1c8e0e7"
+dependencies = [
+ "bitflags 1.3.2",
+ "core-foundation",
+ "system-configuration-sys",
+]
+
+[[package]]
+name = "system-configuration-sys"
+version = "0.5.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "a75fb188eb626b924683e3b95e3a48e63551fcfb51949de2f06a9d91dbee93c9"
+dependencies = [
+ "core-foundation-sys",
+ "libc",
+]
+
+[[package]]
+name = "tempfile"
+version = "3.10.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "85b77fafb263dd9d05cbeac119526425676db3784113aa9295c88498cbf8bff1"
+dependencies = [
+ "cfg-if",
+ "fastrand",
+ "rustix",
+ "windows-sys 0.52.0",
+]
+
 [[package]]
 name = "time"
 version = "0.3.34"
@@ -627,6 +942,21 @@ dependencies = [
  "time-core",
 ]
 
+[[package]]
+name = "tinyvec"
+version = "1.6.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "87cc5ceb3875bb20c2890005a4e226a4651264a5c75edb2421b52861a0a0cb50"
+dependencies = [
+ "tinyvec_macros",
+]
+
+[[package]]
+name = "tinyvec_macros"
+version = "0.1.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "1f3ccbac311fea05f86f61904b462b55fb3df8837a366dfc601a0161d0532f20"
+
 [[package]]
 name = "tokio"
 version = "1.36.0"
@@ -634,6 +964,7 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "61285f6515fa018fb2d1e46eb21223fff441ee8db5d0f1435e8ab4f5cdb80931"
 dependencies = [
  "backtrace",
+ "bytes",
  "libc",
  "mio",
  "num_cpus",
@@ -655,10 +986,85 @@ dependencies = [
 ]
 
 [[package]]
-name = "typenum"
-version = "1.17.0"
+name = "tokio-native-tls"
+version = "0.3.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "42ff0bf0c66b8238c6f3b578df37d0b7848e55df8577b3f74f92a69acceeb825"
+checksum = "bbae76ab933c85776efabc971569dd6119c580d8f5d448769dec1764bf796ef2"
+dependencies = [
+ "native-tls",
+ "tokio",
+]
+
+[[package]]
+name = "tokio-util"
+version = "0.7.11"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "9cf6b47b3771c49ac75ad09a6162f53ad4b8088b76ac60e8ec1455b31a189fe1"
+dependencies = [
+ "bytes",
+ "futures-core",
+ "futures-sink",
+ "pin-project-lite",
+ "tokio",
+]
+
+[[package]]
+name = "tower"
+version = "0.4.13"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "b8fa9be0de6cf49e536ce1851f987bd21a43b771b09473c3549a6c853db37c1c"
+dependencies = [
+ "futures-core",
+ "futures-util",
+ "pin-project",
+ "pin-project-lite",
+ "tokio",
+ "tower-layer",
+ "tower-service",
+]
+
+[[package]]
+name = "tower-layer"
+version = "0.3.2"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "c20c8dbed6283a09604c3e69b4b7eeb54e298b8a600d4d5ecb5ad39de609f1d0"
+
+[[package]]
+name = "tower-service"
+version = "0.3.2"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "b6bc1c9ce2b5135ac7f93c72918fc37feb872bdc6a5533a8b85eb4b86bfdae52"
+
+[[package]]
+name = "tracing"
+version = "0.1.40"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "c3523ab5a71916ccf420eebdf5521fcef02141234bbc0b8a49f2fdc4544364ef"
+dependencies = [
+ "pin-project-lite",
+ "tracing-core",
+]
+
+[[package]]
+name = "tracing-core"
+version = "0.1.32"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "c06d3da6113f116aaee68e4d601191614c9053067f9ab7f6edbcb161237daa54"
+dependencies = [
+ "once_cell",
+]
+
+[[package]]
+name = "try-lock"
+version = "0.2.5"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "e421abadd41a4225275504ea4d6566923418b7f05506fbc9c0fe86ba7396114b"
+
+[[package]]
+name = "unicode-bidi"
+version = "0.3.15"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "08f95100a766bf4f8f28f90d77e0a5461bbdb219042e7679bebe79004fed8d75"
 
 [[package]]
 name = "unicode-ident"
@@ -666,12 +1072,32 @@ version = "1.0.12"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "3354b9ac3fae1ff6755cb6db53683adb661634f67557942dea4facebec0fee4b"
 
+[[package]]
+name = "unicode-normalization"
+version = "0.1.23"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "a56d1686db2308d901306f92a263857ef59ea39678a5458e7cb17f01415101f5"
+dependencies = [
+ "tinyvec",
+]
+
 [[package]]
 name = "untrusted"
 version = "0.9.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "8ecb6da28b8a351d773b68d5825ac39017e680750f980f3a1a85cd8dd28a47c1"
 
+[[package]]
+name = "url"
+version = "2.5.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "31e6302e3bb753d46e83516cae55ae196fc0c309407cf11ab35cc51a4c2a4633"
+dependencies = [
+ "form_urlencoded",
+ "idna",
+ "percent-encoding",
+]
+
 [[package]]
 name = "vcpkg"
 version = "0.2.15"
@@ -679,10 +1105,13 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "accd4ea62f7bb7a82fe23066fb0957d48ef677f6eeb8215f372f52e48bb32426"
 
 [[package]]
-name = "version_check"
-version = "0.9.4"
+name = "want"
+version = "0.3.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "49874b5167b65d7193b8aba1567f5c7d93d001cafc34600cee003eda787e483f"
+checksum = "bfa7760aed19e106de2c7c0b581b509f2f25d3dacaf737cb82ac61bc6d760b0e"
+dependencies = [
+ "try-lock",
+]
 
 [[package]]
 name = "wasi"
@@ -690,6 +1119,82 @@ version = "0.11.0+wasi-snapshot-preview1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "9c8d87e72b64a3b4db28d11ce29237c246188f4f51057d65a7eab63b7987e423"
 
+[[package]]
+name = "wasm-bindgen"
+version = "0.2.92"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "4be2531df63900aeb2bca0daaaddec08491ee64ceecbee5076636a3b026795a8"
+dependencies = [
+ "cfg-if",
+ "wasm-bindgen-macro",
+]
+
+[[package]]
+name = "wasm-bindgen-backend"
+version = "0.2.92"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "614d787b966d3989fa7bb98a654e369c762374fd3213d212cfc0251257e747da"
+dependencies = [
+ "bumpalo",
+ "log",
+ "once_cell",
+ "proc-macro2",
+ "quote",
+ "syn",
+ "wasm-bindgen-shared",
+]
+
+[[package]]
+name = "wasm-bindgen-futures"
+version = "0.4.42"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "76bc14366121efc8dbb487ab05bcc9d346b3b5ec0eaa76e46594cabbe51762c0"
+dependencies = [
+ "cfg-if",
+ "js-sys",
+ "wasm-bindgen",
+ "web-sys",
+]
+
+[[package]]
+name = "wasm-bindgen-macro"
+version = "0.2.92"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "a1f8823de937b71b9460c0c34e25f3da88250760bec0ebac694b49997550d726"
+dependencies = [
+ "quote",
+ "wasm-bindgen-macro-support",
+]
+
+[[package]]
+name = "wasm-bindgen-macro-support"
+version = "0.2.92"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "e94f17b526d0a461a191c78ea52bbce64071ed5c04c9ffe424dcb38f74171bb7"
+dependencies = [
+ "proc-macro2",
+ "quote",
+ "syn",
+ "wasm-bindgen-backend",
+ "wasm-bindgen-shared",
+]
+
+[[package]]
+name = "wasm-bindgen-shared"
+version = "0.2.92"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "af190c94f2773fdb3729c55b007a722abb5384da03bc0986df4c289bf5567e96"
+
+[[package]]
+name = "web-sys"
+version = "0.3.69"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "77afa9a11836342370f4817622a2f0f418b134426d91a82dfb48f532d2ec13ef"
+dependencies = [
+ "js-sys",
+ "wasm-bindgen",
+]
+
 [[package]]
 name = "windows-sys"
 version = "0.48.0"
@@ -823,20 +1328,23 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "32b752e52a2da0ddfbdbcc6fceadfeede4c939ed16d13e648833a61dfb611ed8"
 
 [[package]]
-name = "zeroize"
-version = "1.7.0"
+name = "winreg"
+version = "0.52.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "525b4ec142c6b68a2d10f01f7bbf6755599ca3f81ea53b8431b7dd348f5fdb2d"
+checksum = "a277a57398d4bfa075df44f501a17cfdf8542d224f0d36095a2adc7aee4ef0a5"
+dependencies = [
+ "cfg-if",
+ "windows-sys 0.48.0",
+]
 
 [[package]]
 name = "zeusns"
 version = "0.1.0"
 dependencies = [
- "base64 0.22.0",
+ "base64",
  "diesel",
  "dotenvy",
- "ed25519-dalek",
+ "reqwest",
  "ring",
- "sshkeys",
  "tokio",
 ]
diff --git a/Cargo.toml b/Cargo.toml
index 73f55a2..880c7d3 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -8,7 +8,6 @@ edition = "2021"
 diesel = { version = "2.1.4", features = ["sqlite"] }
 dotenvy = "0.15"
 tokio = {version = "1.36.0", features = ["macros","rt-multi-thread","net"], default-features = false}
-sshkeys = "0.3.2"
 ring = "0.17.8"
 base64 = "0.22.0"
-ed25519-dalek = "2.1.1"
+reqwest = {version = "0.12.4", features = ["json","default"]}
diff --git a/src/auth.rs b/src/auth.rs
deleted file mode 100644
index 73036f6..0000000
--- a/src/auth.rs
+++ /dev/null
@@ -1,15 +0,0 @@
-use std::fs::read_to_string;
-
-use base64::prelude::*;
-
-pub fn verify(signature: &[u8], message: &[u8]) -> bool {
-
-    let str = read_to_string("dns.pub").unwrap(); //TODO: pub ssh key use zauth
-
-    let key_split: Vec<&str> = str.split_ascii_whitespace().collect();
-    let blob = BASE64_STANDARD.decode(key_split[1]).unwrap();
-
-    let key  = ring::signature::UnparsedPublicKey::new(&ring::signature::ED25519, &blob.as_slice()[19..]);
-
-    return key.verify(&message, signature.as_ref()).is_ok();
-}
diff --git a/src/authenticate.rs b/src/authenticate.rs
new file mode 100644
index 0000000..49da614
--- /dev/null
+++ b/src/authenticate.rs
@@ -0,0 +1,49 @@
+use std::env;
+
+use reqwest::Error;
+
+use crate::{
+    errors::AuthenticationError,
+    sig::{PublicKey, Sig},
+};
+
+type SSHKeys = Vec<String>;
+
+type Result<T> = std::result::Result<T, AuthenticationError>;
+
+pub async fn authenticate(sig: &Sig, zone: &Vec<String>) -> Result<bool> {
+    if zone.len() >= 4 {
+        let username = &zone[zone.len() - 4]; // Should match: username.users.zeus.gent
+        let public_keys = get_keys(username).await.map_err(|e| AuthenticationError {
+            message: e.to_string(),
+        })?;
+
+        Ok(public_keys.iter().any(|key| {
+            let key_split: Vec<&str> = key.split_ascii_whitespace().collect();
+            match key_split.len() {
+                3 => {
+                    let key_encoded = key_split[1].to_string();
+                    match key_split[0] {
+                        "ssh-ed25519" => sig.verify(PublicKey::ED25519(key_encoded)),
+                        _ => false,
+                    }
+                }
+                _ => false,
+            }
+        }))
+    } else {
+        Err(AuthenticationError {
+            message: String::from("Invalid zone"),
+        })
+    }
+}
+
+async fn get_keys(username: &String) -> std::result::Result<SSHKeys, Error> {
+    let zauth_url = env::var("ZAUTH_URL").expect("ZAUTH_URL must be set");
+    Ok(
+        reqwest::get(format!("{}/users/keys/{}", zauth_url, username))
+            .await?
+            .json::<SSHKeys>()
+            .await?,
+    )
+}
diff --git a/src/db/lib.rs b/src/db/lib.rs
index 41fe994..30de47d 100644
--- a/src/db/lib.rs
+++ b/src/db/lib.rs
@@ -1,11 +1,8 @@
 use diesel::prelude::*;
 use diesel::sqlite::SqliteConnection;
-use dotenvy::dotenv;
 use std::env;
 
 pub fn establish_connection() -> SqliteConnection {
-    dotenv().ok();
-
     let database_url = env::var("DATABASE_URL").expect("DATABASE_URL must be set");
     SqliteConnection::establish(&database_url)
         .unwrap_or_else(|_| panic!("Error connecting to {}", database_url))
diff --git a/src/db/models.rs b/src/db/models.rs
index b419346..ad0e3ec 100644
--- a/src/db/models.rs
+++ b/src/db/models.rs
@@ -2,7 +2,7 @@ use crate::{
     errors::DatabaseError,
     structs::{Class, Question, Type, RR},
 };
-use diesel::{dsl, prelude::*};
+use diesel::prelude::*;
 
 use self::schema::records::{self};
 
diff --git a/src/errors.rs b/src/errors.rs
index cb147c0..4346d56 100644
--- a/src/errors.rs
+++ b/src/errors.rs
@@ -33,3 +33,14 @@ impl fmt::Display for DatabaseError {
         write!(f, "Database Error: {}", self.message)
     }
 }
+
+#[derive(Debug)]
+pub struct AuthenticationError {
+    pub message: String,
+}
+
+impl fmt::Display for AuthenticationError {
+    fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result {
+        write!(f, "Authentication Error: {}", self.message)
+    }
+}
diff --git a/src/main.rs b/src/main.rs
index 2e50706..59b2704 100644
--- a/src/main.rs
+++ b/src/main.rs
@@ -1,17 +1,21 @@
 use std::{error::Error, net::SocketAddr};
 
+use dotenvy::dotenv;
+
 use crate::resolver::resolver_listener_loop;
 
 mod db;
 mod errors;
 mod parser;
 mod resolver;
-mod auth;
 mod structs;
 mod utils;
+mod sig;
+mod authenticate;
 
 #[tokio::main]
 async fn main() -> Result<(), Box<dyn Error>> {
+    dotenv().ok();
 
     let resolver_add = SocketAddr::from(([127, 0, 0, 1], 8080));
     let _ = tokio::join!(
diff --git a/src/parser.rs b/src/parser.rs
index c44be64..7b83969 100644
--- a/src/parser.rs
+++ b/src/parser.rs
@@ -368,7 +368,7 @@ impl FromBytes for KeyRData {
         }
     }
 
-    fn to_bytes(s: Self) -> Vec<u8>
+    fn to_bytes(_: Self) -> Vec<u8>
     where
         Self: Sized,
     {
diff --git a/src/resolver.rs b/src/resolver.rs
index 7970b19..86acfd3 100644
--- a/src/resolver.rs
+++ b/src/resolver.rs
@@ -4,11 +4,12 @@ use std::sync::Arc;
 
 use tokio::net::UdpSocket;
 
-use crate::auth::verify;
+use crate::authenticate::authenticate;
 use crate::db::models::{delete_from_database, get_from_database, insert_into_database};
 use crate::errors::ParseError;
 use crate::parser::FromBytes;
-use crate::structs::{Class, Header, KeyRData, Message, Opcode, RRClass, RRType, Type, RCODE};
+use crate::sig::Sig;
+use crate::structs::{Class, Header, Message, Opcode, RRClass, RRType, Type, RCODE};
 use crate::utils::vec_equal;
 
 const MAX_DATAGRAM_SIZE: usize = 4096;
@@ -68,17 +69,9 @@ async fn handle_update(message: Message, bytes: &[u8]) -> Message {
     //TODO: this code is ugly
     let last = message.additional.last();
     if last.is_some() && last.unwrap()._type == Type::Type(RRType::KEY) {
-        let rr = last.unwrap();
-        let mut request = bytes[0..bytes.len() - 11 - rr.rdlength as usize].to_vec();
-        request[11] -= 1; // Decrease arcount
+        let sig = Sig::new(last.unwrap(), bytes);
 
-        let mut i = 0;
-        let key = KeyRData::from_bytes(&rr.rdata, &mut i).unwrap();
-
-        let mut data = rr.rdata[0..i].to_vec();
-        data.extend(request);
-
-        if !verify(&key.signature, &data.as_slice()) {
+        if !authenticate(&sig, &zone.qname).await.is_ok_and(|x| x) {
             response.header.flags = set_response_flags(response.header.flags, RCODE::NOTAUTH);
             return response;
         }
diff --git a/src/sig.rs b/src/sig.rs
new file mode 100644
index 0000000..7cebe4c
--- /dev/null
+++ b/src/sig.rs
@@ -0,0 +1,51 @@
+use base64::prelude::*;
+
+use crate::{
+    parser::FromBytes,
+    structs::{KeyRData, RR},
+};
+
+pub struct Sig {
+    raw_data: Vec<u8>,
+    key_rdata: KeyRData,
+}
+
+pub enum PublicKey {
+    ED25519(String),
+}
+
+impl Sig {
+    pub fn new(rr: &RR, datagram: &[u8]) -> Sig {
+        let mut request = datagram[0..datagram.len() - 11 - rr.rdlength as usize].to_vec();
+        request[11] -= 1; // Decrease arcount
+
+        let mut i = 0;
+        let key_rdata = KeyRData::from_bytes(&rr.rdata, &mut i).unwrap();
+
+        let mut raw_data = rr.rdata[0..i].to_vec();
+        raw_data.extend(request);
+
+        Sig {
+            raw_data,
+            key_rdata,
+        }
+    }
+
+    fn verify_ed25519(&self, key: String) -> bool {
+        let blob = BASE64_STANDARD.decode(key).unwrap();
+
+        let pkey = ring::signature::UnparsedPublicKey::new(
+            &ring::signature::ED25519,
+            &blob.as_slice()[19..],
+        );
+
+        pkey.verify(&self.raw_data, &self.key_rdata.signature)
+            .is_ok()
+    }
+
+    pub fn verify(&self, key: PublicKey) -> bool {
+        match key {
+            PublicKey::ED25519(pkey) => self.verify_ed25519(pkey),
+        }
+    }
+}