Generate & return webauthn registration challenge

Cargo.lock

@@ -424,10 +424,12 @@ dependencies = [
  "actix",
  "actix-identity",
  "actix-web",
+ "aes-gcm",
  "askama",
  "base32",
  "base64",
  "bcrypt",
+ "bincode",
  "clap",
  "digest 0.10.3",
  "env_logger",
@@ -444,8 +446,10 @@ dependencies = [
  "serde_yaml",
  "sha2 0.10.2",
  "totp_rfc6238",
+ "url",
  "urlencoding",
  "uuid",
+ "webauthn-rs",
 ]
 
 [[package]]
@@ -459,6 +463,15 @@ dependencies = [
  "getrandom",
 ]
 
+[[package]]
+name = "bincode"
+version = "1.3.3"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "b1f45e9417d87227c7a56d22e471c6206462cba514c7590c09aff4cf6d1ddcad"
+dependencies = [
+ "serde",
+]
+
 [[package]]
 name = "bit_field"
 version = "0.10.1"
@@ -995,6 +1008,21 @@ version = "1.0.7"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "3f9eec918d3f24069decb9af1554cad7c880e2da24a9afd88aca000531ab82c1"
 
+[[package]]
+name = "foreign-types"
+version = "0.3.2"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "f6f339eb8adc052cd2ca78910fda869aefa38d22d5cb648e6485e4d3fc06f3b1"
+dependencies = [
+ "foreign-types-shared",
+]
+
+[[package]]
+name = "foreign-types-shared"
+version = "0.1.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "00b0228411908ca8685dba7fc2cdd70ec9990a6e753e89b6ac91a84c40fbaf4b"
+
 [[package]]
 name = "form_urlencoded"
 version = "1.0.1"
@@ -1693,6 +1721,33 @@ version = "0.3.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "624a8340c38c1b80fd549087862da4ba43e08858af025b236e509b6649fc13d5"
 
+[[package]]
+name = "openssl"
+version = "0.10.38"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "0c7ae222234c30df141154f159066c5093ff73b63204dcda7121eb082fc56a95"
+dependencies = [
+ "bitflags",
+ "cfg-if",
+ "foreign-types",
+ "libc",
+ "once_cell",
+ "openssl-sys",
+]
+
+[[package]]
+name = "openssl-sys"
+version = "0.9.72"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "7e46109c383602735fa0a2e48dd2b7c892b048e1bf69e5c3b1d804b7d9c203cb"
+dependencies = [
+ "autocfg 1.1.0",
+ "cc",
+ "libc",
+ "pkg-config",
+ "vcpkg",
+]
+
 [[package]]
 name = "os_str_bytes"
 version = "6.0.0"
@@ -1831,6 +1886,12 @@ dependencies = [
  "zeroize",
 ]
 
+[[package]]
+name = "pkg-config"
+version = "0.3.25"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "1df8c4ec4b0627e53bdf214615ad287367e482558cf84b109250b37464dc03ae"
+
 [[package]]
 name = "png"
 version = "0.17.5"
@@ -2101,6 +2162,16 @@ dependencies = [
  "serde_derive",
 ]
 
+[[package]]
+name = "serde_cbor"
+version = "0.11.2"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "2bef2ebfde456fb76bbcf9f59315333decc4fda0b2b44b420243c11e0f5ec1f5"
+dependencies = [
+ "half",
+ "serde",
+]
+
 [[package]]
 name = "serde_derive"
 version = "1.0.136"
@@ -2539,6 +2610,7 @@ dependencies = [
  "idna",
  "matches",
  "percent-encoding",
+ "serde",
 ]
 
 [[package]]
@@ -2562,6 +2634,12 @@ dependencies = [
  "getrandom",
 ]
 
+[[package]]
+name = "vcpkg"
+version = "0.2.15"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "accd4ea62f7bb7a82fe23066fb0957d48ef677f6eeb8215f372f52e48bb32426"
+
 [[package]]
 name = "version_check"
 version = "0.9.4"
@@ -2644,6 +2722,25 @@ dependencies = [
  "wasm-bindgen",
 ]
 
+[[package]]
+name = "webauthn-rs"
+version = "0.3.2"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "90b266eccb4b32595876f5c73ea443b0516da0b1df72ca07bc08ed9ba7f96ec1"
+dependencies = [
+ "base64",
+ "nom",
+ "openssl",
+ "rand",
+ "serde",
+ "serde_cbor",
+ "serde_derive",
+ "serde_json",
+ "thiserror",
+ "tracing",
+ "url",
+]
+
 [[package]]
 name = "weezl"
 version = "0.1.5"