diff --git a/Cargo.lock b/Cargo.lock
index 47fed26f9..f7aff4c16 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -2,6 +2,15 @@
 # It is not intended for manual editing.
 version = 3
 
+[[package]]
+name = "addr2line"
+version = "0.22.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "6e4503c46a5c0c7844e948c9a4d6acd9f50cccb4de1c48eb9e291ea17470c678"
+dependencies = [
+ "gimli",
+]
+
 [[package]]
 name = "adler"
 version = "1.0.2"
@@ -19,12 +28,33 @@ dependencies = [
  "cpufeatures",
 ]
 
+[[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 = "0.3.73"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "5cc23269a4f8976d0a4d2e7109211a419fe30e8d88d677cd60b6bc79c5732e0a"
+dependencies = [
+ "addr2line",
+ "cc",
+ "cfg-if",
+ "libc",
+ "miniz_oxide",
+ "object",
+ "rustc-demangle",
+]
+
 [[package]]
 name = "base64"
 version = "0.22.1"
@@ -49,6 +79,36 @@ version = "1.3.2"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "bef38d45163c2f1dde094a7dfd33ccf595c92905c8f8f4fdc18d06fb1037718a"
 
+[[package]]
+name = "bitflags"
+version = "2.6.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "b048fb63fd8b5923fc5aa7b340d8e156aec7ec02f0c78fa8a6ddc2613f6f71de"
+
+[[package]]
+name = "block-buffer"
+version = "0.10.4"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "3078c7629b62d3f0439517fa394996acacc5cbc91c5a20d8c658e77abd503a71"
+dependencies = [
+ "generic-array",
+]
+
+[[package]]
+name = "block-buffer"
+version = "0.11.0-rc.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "17092d478f4fadfb35a7e082f62e49f0907fdf048801d9d706277e34f9df8a78"
+dependencies = [
+ "crypto-common 0.2.0-rc.0",
+]
+
+[[package]]
+name = "bumpalo"
+version = "3.16.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "79296716171880943b8470b5f8d03aa55eb2e645a4874bdbb28adb49162e012c"
+
 [[package]]
 name = "bytemuck"
 version = "1.16.3"
@@ -73,6 +133,12 @@ version = "1.7.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "8318a53db07bb3f8dca91a600466bdb3f2eaadeedfdbcf02e1accbad9271ba50"
 
+[[package]]
+name = "cc"
+version = "1.1.7"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "26a5c3fd7bfa1ce3897a3a3501d362b2d87b7f2583ebcb4a949ec25911025cbc"
+
 [[package]]
 name = "cesu8"
 version = "1.1.0"
@@ -100,7 +166,7 @@ version = "0.4.4"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "773f3b9af64447d2ce9850330c473515014aa235e6a783b02db81ff39e4a3dad"
 dependencies = [
- "crypto-common",
+ "crypto-common 0.1.6",
  "inout",
 ]
 
@@ -126,6 +192,22 @@ version = "0.9.6"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "c2459377285ad874054d797f3ccebf984978aa39129f6eafde5cdc8315b612f8"
 
+[[package]]
+name = "core-foundation"
+version = "0.9.4"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "91e195e091a93c46f7102ec7818a2aa394e1e1771c3ab4825963fa03e45afb8f"
+dependencies = [
+ "core-foundation-sys",
+ "libc",
+]
+
+[[package]]
+name = "core-foundation-sys"
+version = "0.8.6"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "06ea2b9bc92be3c2baa9334a323ebca2d6f074ff852cd1d7b11064035cd3868f"
+
 [[package]]
 name = "cpufeatures"
 version = "0.2.12"
@@ -169,6 +251,15 @@ dependencies = [
  "typenum",
 ]
 
+[[package]]
+name = "crypto-common"
+version = "0.2.0-rc.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "8c070b79a496dccd931229780ad5bbedd535ceff6c3565605a8e440e18e1aa2b"
+dependencies = [
+ "hybrid-array",
+]
+
 [[package]]
 name = "der"
 version = "0.7.9"
@@ -195,8 +286,28 @@ version = "0.10.7"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "9ed9a281f7bc9b7576e61468ba615a66a5c8cfdff42420a70aa82701a3b1e292"
 dependencies = [
+ "block-buffer 0.10.4",
  "const-oid",
- "crypto-common",
+ "crypto-common 0.1.6",
+]
+
+[[package]]
+name = "digest"
+version = "0.11.0-pre.9"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "cf2e3d6615d99707295a9673e889bf363a04b2a466bd320c65a72536f7577379"
+dependencies = [
+ "block-buffer 0.11.0-rc.0",
+ "crypto-common 0.2.0-rc.0",
+]
+
+[[package]]
+name = "encoding_rs"
+version = "0.8.34"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "b45de904aa0b010bce2ab45264d0631681847fa7b6f2eaa7dab7619943bc4f59"
+dependencies = [
+ "cfg-if",
 ]
 
 [[package]]
@@ -205,6 +316,16 @@ version = "1.0.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "5443807d6dff69373d433ab9ef5378ad8df50ca6298caf15de6e52e24aaf54d5"
 
+[[package]]
+name = "errno"
+version = "0.3.9"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "534c5cf6194dfab3db3242765c03bbe257cf92f22b38f6bc0c58d59108a820ba"
+dependencies = [
+ "libc",
+ "windows-sys 0.52.0",
+]
+
 [[package]]
 name = "fastanvil"
 version = "0.31.0"
@@ -247,6 +368,12 @@ dependencies = [
  "serde_bytes",
 ]
 
+[[package]]
+name = "fastrand"
+version = "2.1.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "9fc0510504f03c51ada170672ac806f1f105a88aa97a5281117e1ddc3368e51a"
+
 [[package]]
 name = "fastsnbt"
 version = "0.2.0"
@@ -291,6 +418,75 @@ dependencies = [
  "miniz_oxide",
 ]
 
+[[package]]
+name = "fnv"
+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 = "1.2.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "e13624c2627564efccf4934284bdd98cbaa14e79b0b5a141218e507b3a823456"
+dependencies = [
+ "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]]
 name = "generic-array"
 version = "0.14.7"
@@ -312,6 +508,31 @@ dependencies = [
  "wasi",
 ]
 
+[[package]]
+name = "gimli"
+version = "0.29.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "40ecd4077b5ae9fd2e9e169b102c6c330d0605168eb0e8bf79952b256dbefffd"
+
+[[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"
@@ -324,6 +545,138 @@ 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 = "1.0.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "1efedce1fb8e6913f23e0c92de8e62cd5b772a67e7b3946df930a62566c93184"
+dependencies = [
+ "bytes",
+ "http",
+]
+
+[[package]]
+name = "http-body-util"
+version = "0.1.2"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "793429d76616a256bcb62c2a2ec2bed781c8307e797e2598c50010f2bee2544f"
+dependencies = [
+ "bytes",
+ "futures-util",
+ "http",
+ "http-body",
+ "pin-project-lite",
+]
+
+[[package]]
+name = "httparse"
+version = "1.9.4"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "0fcc0b4a115bf80b728eb8ea024ad5bd707b615bfed49e0665b6e0f86fd082d9"
+
+[[package]]
+name = "hybrid-array"
+version = "0.2.0-rc.9"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "4d306b679262030ad8813a82d4915fc04efff97776e4db7f8eb5137039d56400"
+dependencies = [
+ "typenum",
+]
+
+[[package]]
+name = "hyper"
+version = "1.4.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "50dfd22e0e76d0f662d429a5f80fcaf3855009297eab6a0a9f8543834744ba05"
+dependencies = [
+ "bytes",
+ "futures-channel",
+ "futures-util",
+ "h2",
+ "http",
+ "http-body",
+ "httparse",
+ "itoa",
+ "pin-project-lite",
+ "smallvec",
+ "tokio",
+ "want",
+]
+
+[[package]]
+name = "hyper-rustls"
+version = "0.27.2"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "5ee4be2c948921a1a5320b629c4193916ed787a7f7f293fd3f7f5a6c9de74155"
+dependencies = [
+ "futures-util",
+ "http",
+ "hyper",
+ "hyper-util",
+ "rustls",
+ "rustls-pki-types",
+ "tokio",
+ "tokio-rustls",
+ "tower-service",
+]
+
+[[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 = "0.1.6"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "3ab92f4f49ee4fb4f997c784b7a2e0fa70050211e0b6a287f898c3c9785ca956"
+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 = "image"
 version = "0.23.14"
@@ -369,12 +722,27 @@ dependencies = [
  "generic-array",
 ]
 
+[[package]]
+name = "ipnet"
+version = "2.9.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "8f518f335dce6725a761382244631d86cf0ccb2863413590b31338feb467f9c3"
+
 [[package]]
 name = "itoa"
 version = "1.0.11"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "49f1f14873335454500d59611f1cf4a4b0f786f9ac11f4312a78e4cf2566695b"
 
+[[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 = "lazy_static"
 version = "1.5.0"
@@ -396,6 +764,12 @@ version = "0.2.8"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "4ec2a862134d2a7d32d7983ddcdd1c4923530833c9f2ea1a44fc5fa473989058"
 
+[[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 = "0.4.22"
@@ -408,6 +782,12 @@ version = "2.7.4"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "78ca9ab1a0babb1e7d5695e3530886289c18cf2f87ec19a575a0abdce112e3a3"
 
+[[package]]
+name = "mime"
+version = "0.3.17"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "6877bb514081ee2a7ff5ef9de3281f14a4dd4bceac4c09388074a6b5df8a139a"
+
 [[package]]
 name = "minimal-lexical"
 version = "0.2.1"
@@ -437,6 +817,23 @@ dependencies = [
  "windows-sys 0.52.0",
 ]
 
+[[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 = "nom"
 version = "7.1.3"
@@ -551,12 +948,65 @@ dependencies = [
  "libc",
 ]
 
+[[package]]
+name = "object"
+version = "0.36.2"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "3f203fa8daa7bb185f760ae12bd8e097f63d17041dcdcaf675ac54cdf863170e"
+dependencies = [
+ "memchr",
+]
+
 [[package]]
 name = "once_cell"
 version = "1.19.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "3fdb12b2476b595f9358c5161aa467c2438859caa136dec86c26fdd2efe17b92"
 
+[[package]]
+name = "openssl"
+version = "0.10.66"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "9529f4786b70a3e8c61e11179af17ab6188ad8d0ded78c5529441ed39d4bd9c1"
+dependencies = [
+ "bitflags 2.6.0",
+ "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 2.0.72",
+]
+
+[[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 = "0.9.103"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "7f9e8deee91df40a943c71b917e5874b951d32a802526c85721ce3b776c929d6"
+dependencies = [
+ "cc",
+ "libc",
+ "pkg-config",
+ "vcpkg",
+]
+
 [[package]]
 name = "pem-rfc7468"
 version = "0.7.0"
@@ -566,6 +1016,44 @@ dependencies = [
  "base64ct",
 ]
 
+[[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 2.0.72",
+]
+
+[[package]]
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+checksum = "bda66fc9667c18cb2758a2ac84d1167245054bcf85d5d1aaa6923f45801bdd02"
+
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+checksum = "8b870d8c151b6f2fb93e84a13146138f05d02ed11c7e7c54f8826aaaf7c9f184"
+
 [[package]]
 name = "pkcs1"
 version = "0.7.5"
@@ -587,19 +1075,31 @@ dependencies = [
  "spki",
 ]
 
+[[package]]
+name = "pkg-config"
+version = "0.3.30"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "d231b230927b5e4ad203db57bbcbee2802f6bce620b1e4a9024a07d94e2907ec"
+
 [[package]]
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 checksum = "06e4b0d3d1312775e782c86c91a111aa1f910cbb65e1337f9975b5f9a554b5e1"
 dependencies = [
- "bitflags",
+ "bitflags 1.3.2",
  "crc32fast",
  "fdeflate",
  "flate2",
  "miniz_oxide",
 ]
 
+[[package]]
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+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "22686f4785f02a4fcc856d3b3bb19bf6c8160d103f7a99cc258bddd0251dc7f2"
+
 [[package]]
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 version = "0.2.0"
@@ -640,18 +1140,23 @@ version = "0.1.0"
 dependencies = [
  "base64",
  "crossbeam-channel",
+ "digest 0.11.0-pre.9",
  "flate2",
  "image 0.25.2",
  "log",
  "mio",
+ "num-bigint",
+ "pollster",
  "pumpkin-protocol",
  "pumpkin-registry",
  "pumpkin-world",
  "rand",
+ "reqwest",
  "rsa",
  "rsa-der",
  "serde",
  "serde_json",
+ "sha1",
  "simple_logger",
  "thiserror",
  "toml",
@@ -738,7 +1243,65 @@ version = "0.4.1"
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 checksum = "4722d768eff46b75989dd134e5c353f0d6296e5aaa3132e776cbdb56be7731aa"
 dependencies = [
- "bitflags",
+ "bitflags 1.3.2",
+]
+
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+dependencies = [
+ "base64",
+ "bytes",
+ "encoding_rs",
+ "futures-core",
+ "futures-util",
+ "h2",
+ "http",
+ "http-body",
+ "http-body-util",
+ "hyper",
+ "hyper-rustls",
+ "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]]
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+checksum = "c17fa4cb658e3583423e915b9f3acc01cceaee1860e33d59ebae66adc3a2dc0d"
+dependencies = [
+ "cc",
+ "cfg-if",
+ "getrandom",
+ "libc",
+ "spin",
+ "untrusted",
+ "windows-sys 0.52.0",
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@@ -748,7 +1311,7 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
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 dependencies = [
  "const-oid",
- "digest",
+ "digest 0.10.7",
  "num-bigint-dig",
  "num-integer",
  "num-traits",
@@ -770,12 +1333,103 @@ dependencies = [
  "simple_asn1",
 ]
 
+[[package]]
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+source = "registry+https://github.com/rust-lang/crates.io-index"
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+
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+dependencies = [
+ "bitflags 2.6.0",
+ "errno",
+ "libc",
+ "linux-raw-sys",
+ "windows-sys 0.52.0",
+]
+
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+dependencies = [
+ "once_cell",
+ "rustls-pki-types",
+ "rustls-webpki",
+ "subtle",
+ "zeroize",
+]
+
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+dependencies = [
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+
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+dependencies = [
+ "ring",
+ "rustls-pki-types",
+ "untrusted",
+]
+
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+[[package]]
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+dependencies = [
+ "windows-sys 0.52.0",
+]
+
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+checksum = "897b2245f0b511c87893af39b033e5ca9cce68824c4d7e7630b5a1d339658d02"
+dependencies = [
+ "bitflags 2.6.0",
+ "core-foundation",
+ "core-foundation-sys",
+ "libc",
+ "security-framework-sys",
+]
+
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+dependencies = [
+ "core-foundation-sys",
+ "libc",
+]
+
 [[package]]
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@@ -826,13 +1480,36 @@ dependencies = [
  "serde",
 ]
 
+[[package]]
+name = "serde_urlencoded"
+version = "0.7.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "d3491c14715ca2294c4d6a88f15e84739788c1d030eed8c110436aafdaa2f3fd"
+dependencies = [
+ "form_urlencoded",
+ "itoa",
+ "ryu",
+ "serde",
+]
+
+[[package]]
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+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "e3bf829a2d51ab4a5ddf1352d8470c140cadc8301b2ae1789db023f01cedd6ba"
+dependencies = [
+ "cfg-if",
+ "cpufeatures",
+ "digest 0.10.7",
+]
+
 [[package]]
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 checksum = "77549399552de45a898a580c1b41d445bf730df867cc44e6c0233bbc4b8329de"
 dependencies = [
- "digest",
+ "digest 0.10.7",
  "rand_core",
 ]
 
@@ -866,12 +1543,31 @@ dependencies = [
  "windows-sys 0.48.0",
 ]
 
+[[package]]
+name = "slab"
+version = "0.4.9"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "8f92a496fb766b417c996b9c5e57daf2f7ad3b0bebe1ccfca4856390e3d3bb67"
+dependencies = [
+ "autocfg",
+]
+
 [[package]]
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 checksum = "3c5e1a9a646d36c3599cd173a41282daf47c44583ad367b8e6837255952e5c67"
 
+[[package]]
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+checksum = "ce305eb0b4296696835b71df73eb912e0f1ffd2556a501fcede6e0c50349191c"
+dependencies = [
+ "libc",
+ "windows-sys 0.52.0",
+]
+
 [[package]]
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@@ -916,6 +1612,33 @@ dependencies = [
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 ]
 
+[[package]]
+name = "sync_wrapper"
+version = "1.0.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "a7065abeca94b6a8a577f9bd45aa0867a2238b74e8eb67cf10d492bc39351394"
+
+[[package]]
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+checksum = "ba3a3adc5c275d719af8cb4272ea1c4a6d668a777f37e115f6d11ddbc1c8e0e7"
+dependencies = [
+ "bitflags 1.3.2",
+ "core-foundation",
+ "system-configuration-sys",
+]
+
+[[package]]
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+version = "0.5.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "a75fb188eb626b924683e3b95e3a48e63551fcfb51949de2f06a9d91dbee93c9"
+dependencies = [
+ "core-foundation-sys",
+ "libc",
+]
+
 [[package]]
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 version = "0.4.41"
@@ -926,6 +1649,19 @@ dependencies = [
  "libc",
 ]
 
+[[package]]
+name = "tempfile"
+version = "3.11.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "b8fcd239983515c23a32fb82099f97d0b11b8c72f654ed659363a95c3dad7a53"
+dependencies = [
+ "cfg-if",
+ "fastrand",
+ "once_cell",
+ "rustix",
+ "windows-sys 0.52.0",
+]
+
 [[package]]
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@@ -979,6 +1715,70 @@ dependencies = [
  "time-core",
 ]
 
+[[package]]
+name = "tinyvec"
+version = "1.8.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "445e881f4f6d382d5f27c034e25eb92edd7c784ceab92a0937db7f2e9471b938"
+dependencies = [
+ "tinyvec_macros",
+]
+
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+source = "registry+https://github.com/rust-lang/crates.io-index"
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+
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+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "daa4fb1bc778bd6f04cbfc4bb2d06a7396a8f299dc33ea1900cedaa316f467b1"
+dependencies = [
+ "backtrace",
+ "bytes",
+ "libc",
+ "mio",
+ "pin-project-lite",
+ "socket2",
+ "windows-sys 0.52.0",
+]
+
+[[package]]
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+version = "0.3.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "bbae76ab933c85776efabc971569dd6119c580d8f5d448769dec1764bf796ef2"
+dependencies = [
+ "native-tls",
+ "tokio",
+]
+
+[[package]]
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+version = "0.26.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "0c7bc40d0e5a97695bb96e27995cd3a08538541b0a846f65bba7a359f36700d4"
+dependencies = [
+ "rustls",
+ "rustls-pki-types",
+ "tokio",
+]
+
+[[package]]
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+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "9cf6b47b3771c49ac75ad09a6162f53ad4b8088b76ac60e8ec1455b31a189fe1"
+dependencies = [
+ "bytes",
+ "futures-core",
+ "futures-sink",
+ "pin-project-lite",
+ "tokio",
+]
+
 [[package]]
 name = "toml"
 version = "0.8.19"
@@ -1024,23 +1824,116 @@ dependencies = [
  "winnow 0.6.18",
 ]
 
+[[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]]
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+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "c20c8dbed6283a09604c3e69b4b7eeb54e298b8a600d4d5ecb5ad39de609f1d0"
+
+[[package]]
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+
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+checksum = "c3523ab5a71916ccf420eebdf5521fcef02141234bbc0b8a49f2fdc4544364ef"
+dependencies = [
+ "pin-project-lite",
+ "tracing-core",
+]
+
+[[package]]
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+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "c06d3da6113f116aaee68e4d601191614c9053067f9ab7f6edbcb161237daa54"
+dependencies = [
+ "once_cell",
+]
+
+[[package]]
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+checksum = "e421abadd41a4225275504ea4d6566923418b7f05506fbc9c0fe86ba7396114b"
+
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+[[package]]
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+
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+[[package]]
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+checksum = "a56d1686db2308d901306f92a263857ef59ea39678a5458e7cb17f01415101f5"
+dependencies = [
+ "tinyvec",
+]
+
+[[package]]
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+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "8ecb6da28b8a351d773b68d5825ac39017e680750f980f3a1a85cd8dd28a47c1"
+
+[[package]]
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+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "22784dbdf76fdde8af1aeda5622b546b422b6fc585325248a2bf9f5e41e94d6c"
+dependencies = [
+ "form_urlencoded",
+ "idna",
+ "percent-encoding",
+]
+
 [[package]]
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 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "81dfa00651efa65069b0b6b651f4aaa31ba9e3c3ce0137aaad053604ee7e0314"
+dependencies = [
+ "serde",
+]
+
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+checksum = "accd4ea62f7bb7a82fe23066fb0957d48ef677f6eeb8215f372f52e48bb32426"
 
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 checksum = "0b928f33d975fc6ad9f86c8f283853ad26bdd5b10b7f1542aa2fa15e2289105a"
 
+[[package]]
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+checksum = "bfa7760aed19e106de2c7c0b581b509f2f25d3dacaf737cb82ac61bc6d760b0e"
+dependencies = [
+ "try-lock",
+]
+
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+[[package]]
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+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "4be2531df63900aeb2bca0daaaddec08491ee64ceecbee5076636a3b026795a8"
+dependencies = [
+ "cfg-if",
+ "wasm-bindgen-macro",
+]
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+dependencies = [
+ "bumpalo",
+ "log",
+ "once_cell",
+ "proc-macro2",
+ "quote",
+ "syn 2.0.72",
+ "wasm-bindgen-shared",
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+dependencies = [
+ "cfg-if",
+ "js-sys",
+ "wasm-bindgen",
+ "web-sys",
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+dependencies = [
+ "quote",
+ "wasm-bindgen-macro-support",
+]
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+ "proc-macro2",
+ "quote",
+ "syn 2.0.72",
+ "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"
@@ -1211,6 +2189,16 @@ dependencies = [
  "memchr",
 ]
 
+[[package]]
+name = "winreg"
+version = "0.52.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "a277a57398d4bfa075df44f501a17cfdf8542d224f0d36095a2adc7aee4ef0a5"
+dependencies = [
+ "cfg-if",
+ "windows-sys 0.48.0",
+]
+
 [[package]]
 name = "zerocopy"
 version = "0.7.35"
diff --git a/README.md b/README.md
index 44051ce1f..6fc2f8a9e 100644
--- a/README.md
+++ b/README.md
@@ -22,7 +22,7 @@ Pumpkin is currently under heavy development.
   - [x] Custom Icon
   - [x] Custom Status (MOTD)
 - Login
-  - [ ] Authentication
+  - [x] Authentication
   - [x] Encryption
   - [ ] Packet Compression
 - Player Configuration
@@ -32,6 +32,8 @@ Pumpkin is currently under heavy development.
   - [ ] Set Resource Pack
   - [ ] Cookies
 - World 
+  - [x] World Joining
+  - [x] World Loading
   - [ ] Chunk Loading
   - [ ] World Generation
   - [ ] World Borders
diff --git a/pumpkin-protocol/src/client/login/mod.rs b/pumpkin-protocol/src/client/login/mod.rs
index 9ade90920..238ef4e1b 100644
--- a/pumpkin-protocol/src/client/login/mod.rs
+++ b/pumpkin-protocol/src/client/login/mod.rs
@@ -1,3 +1,5 @@
+use serde::Deserialize;
+
 use crate::{bytebuf::ByteBuffer, ClientPacket, VarInt};
 
 pub struct CLoginDisconnect<'a> {
@@ -81,11 +83,11 @@ impl<'a> CLoginSuccess<'a> {
     }
 }
 
+#[derive(Deserialize, Clone, Debug)]
 pub struct Property {
-    name: String,
-    value: String,
-    is_signed: bool,
-    signature: Option<String>,
+    pub name: String,
+    pub value: String,
+    pub signature: String,
 }
 
 impl<'a> ClientPacket for CLoginSuccess<'a> {
@@ -97,8 +99,11 @@ impl<'a> ClientPacket for CLoginSuccess<'a> {
         bytebuf.put_list::<Property>(self.properties, |p, v| {
             p.put_string(&v.name);
             p.put_string(&v.value);
-            p.put_bool(v.is_signed);
-            p.put_option(&v.signature, |p, v| p.put_string(v.as_str()))
+            // has signature ?
+            p.put_bool(true);
+            // option
+            p.put_bool(true);
+            p.put_string(&v.signature);
         });
         bytebuf.put_bool(self.strict_error_handling);
     }
diff --git a/pumpkin/Cargo.toml b/pumpkin/Cargo.toml
index 22e4912d8..d590cc202 100644
--- a/pumpkin/Cargo.toml
+++ b/pumpkin/Cargo.toml
@@ -11,21 +11,33 @@ pumpkin-registry = { path = "../pumpkin-registry"}
 # config
 serde = { version = "1.0", features = ["derive"] }
 serde_json = "1.0"
+toml = "0.8.19"
+
+pollster = "0.3.0"
 
 rand = "0.8.5"
 
+num-bigint = "0.4.6"
+
 # encryption
 rsa = "0.9.6"
 rsa-der = "0.3.0"
 
 flate2 = "1.0.30"
 
+# authentication
+reqwest = { version = "0.12.5", features = ["json"]}
+
+sha1 = "0.10.6"
+digest = "=0.11.0-pre.9"
+
 thiserror = "1.0.63"
 
 # icon loading
 base64 = "0.22.1"
 image = { version = "0.25", default-features = false, features = ["png"]}
 
+# logging
 simple_logger = "5.0.0"
 log = "0.4"
 
@@ -33,8 +45,7 @@ log = "0.4"
 mio = { version = "1.0.1", features = ["os-poll", "net"]}
 crossbeam-channel = "0.5.13"
 
-uuid = "1.10"
-toml = "0.8.19"
+uuid = { version = "1.10", features = ["serde"]}
 
 
 
diff --git a/pumpkin/src/client/authentication.rs b/pumpkin/src/client/authentication.rs
new file mode 100644
index 000000000..dd69e5480
--- /dev/null
+++ b/pumpkin/src/client/authentication.rs
@@ -0,0 +1,62 @@
+use std::{error, net::IpAddr};
+
+use num_bigint::BigInt;
+use pumpkin_protocol::client::login::Property;
+use reqwest::StatusCode;
+use serde::Deserialize;
+use thiserror::Error;
+use uuid::Uuid;
+
+use crate::server::Server;
+
+#[derive(Deserialize, Clone)]
+pub struct GameProfile {
+    pub id: Uuid,
+    pub name: String,
+    pub properties: Vec<Property>,
+}
+
+pub async fn authenticate(
+    username: &str,
+    server_hash: &str,
+    ip: &IpAddr,
+    server: &mut Server,
+) -> Result<GameProfile, AuthError> {
+    assert!(server.auth_client.is_some());
+    let address = if server.base_config.prevent_proxy_connections {
+        format!("https://sessionserver.mojang.com/session/minecraft/hasJoined?username={username}&serverId={server_hash}&ip={ip}")
+    } else {
+        format!("https://sessionserver.mojang.com/session/minecraft/hasJoined?username={username}&serverId={server_hash}")
+    };
+    let response = server
+        .auth_client
+        .as_ref()
+        .unwrap()
+        .get(address)
+        .send()
+        .await
+        .map_err(|_| AuthError::FailedResponse)?;
+    match response.status() {
+        StatusCode::OK => {}
+        StatusCode::NO_CONTENT => Err(AuthError::UnverifiedUsername)?,
+        other => Err(AuthError::UnknownStatusCode(other.as_str().to_string()))?,
+    }
+    let profile: GameProfile = response.json().await.map_err(|_| AuthError::FailedParse)?;
+    Ok(profile)
+}
+
+pub fn auth_digest(bytes: &[u8]) -> String {
+    BigInt::from_signed_bytes_be(bytes).to_str_radix(16)
+}
+
+#[derive(Error, Debug)]
+pub enum AuthError {
+    #[error("Authentication servers are down")]
+    FailedResponse,
+    #[error("Failed to verify username")]
+    UnverifiedUsername,
+    #[error("Failed to parse JSON into Game Profile")]
+    FailedParse,
+    #[error("Unknown Status Code")]
+    UnknownStatusCode(String),
+}
diff --git a/pumpkin/src/client/client_packet.rs b/pumpkin/src/client/client_packet.rs
index 2852c3786..1688ce192 100644
--- a/pumpkin/src/client/client_packet.rs
+++ b/pumpkin/src/client/client_packet.rs
@@ -13,13 +13,16 @@ use pumpkin_protocol::{
     ConnectionState, KnownPack,
 };
 use pumpkin_registry::Registry;
+use rsa::Pkcs1v15Encrypt;
+use sha1::{Digest, Sha1};
 
 use crate::{
+    client::authentication::{self, GameProfile},
     entity::player::{ChatMode, Hand},
     server::Server,
 };
 
-use super::{Client, PlayerConfig};
+use super::{authentication::auth_digest, Client, EncryptionError, PlayerConfig};
 
 /// Processes incoming Packets from the Client to the Server
 /// Implements the `Client` Packets, So everything before the Play state, then will use the `PlayerPacketProcessor`
@@ -84,15 +87,21 @@ impl ClientPacketProcessor for Client {
 
     fn handle_login_start(&mut self, server: &mut Server, login_start: SLoginStart) {
         dbg!("login start");
-        self.name = Some(login_start.name);
-        self.uuid = Some(login_start.uuid);
+        // default game profile, when no online mode
+        self.gameprofile = Some(GameProfile {
+            id: login_start.uuid,
+            name: login_start.name,
+            properties: vec![],
+        });
+
+        // we want encryption
         let verify_token: [u8; 4] = rand::random();
         let public_key_der = &server.public_key_der;
         let packet = CEncryptionRequest::new(
             "",
             public_key_der,
             &verify_token,
-            false, // TODO
+            server.base_config.online_mode, // TODO
         );
         self.send_packet(packet)
             .unwrap_or_else(|e| self.kick(&e.to_string()));
@@ -103,20 +112,39 @@ impl ClientPacketProcessor for Client {
         server: &mut Server,
         encryption_response: SEncryptionResponse,
     ) {
-        dbg!("encryption response");
-        self.enable_encryption(server, encryption_response.shared_secret)
+        let shared_secret = server
+            .private_key
+            .decrypt(Pkcs1v15Encrypt, &encryption_response.shared_secret)
+            .map_err(|_| EncryptionError::FailedDecrypt)
+            .unwrap();
+
+        if server.base_config.online_mode {
+            let hash = Sha1::new()
+                .chain_update(&shared_secret)
+                .chain_update(&server.public_key_der)
+                .finalize();
+            let hash = auth_digest(&hash);
+            let ip = self.address.ip();
+            match pollster::block_on(authentication::authenticate(
+                &self.gameprofile.as_ref().unwrap().name,
+                &hash,
+                &ip,
+                server,
+            )) {
+                Ok(p) => self.gameprofile = Some(p),
+                Err(e) => self.kick(&e.to_string()),
+            }
+        }
+
+        self.enable_encryption(server, shared_secret)
             .unwrap_or_else(|e| self.kick(&e.to_string()));
 
-        if let Some(uuid) = self.uuid {
-            if let Some(name) = &self.name {
-                let packet = CLoginSuccess::new(uuid, name.clone(), &[], false); // todo
-                self.send_packet(packet)
-                    .unwrap_or_else(|e| self.kick(&e.to_string()));
-            } else {
-                self.kick("Name is none");
-            }
+        if let Some(profile) = self.gameprofile.as_ref().cloned() {
+            let packet = CLoginSuccess::new(profile.id, profile.name, &profile.properties, false);
+            self.send_packet(packet)
+                .unwrap_or_else(|e| self.kick(&e.to_string()));
         } else {
-            self.kick("UUID is none");
+            self.kick("game profile is none");
         }
     }
 
diff --git a/pumpkin/src/client/mod.rs b/pumpkin/src/client/mod.rs
index 145ff104c..13fc061ec 100644
--- a/pumpkin/src/client/mod.rs
+++ b/pumpkin/src/client/mod.rs
@@ -1,6 +1,7 @@
 use std::{
     collections::VecDeque,
     io::{self, Write},
+    net::SocketAddr,
     rc::Rc,
 };
 
@@ -9,6 +10,7 @@ use crate::{
     server::Server,
 };
 
+use authentication::GameProfile;
 use mio::{event::Event, net::TcpStream, Token};
 use player_packet::PlayerPacketProcessor;
 use pumpkin_protocol::{
@@ -34,6 +36,7 @@ use rsa::Pkcs1v15Encrypt;
 use std::io::Read;
 use thiserror::Error;
 
+mod authentication;
 mod client_packet;
 pub mod player_packet;
 
@@ -53,8 +56,8 @@ pub struct PlayerConfig {
 pub struct Client {
     pub player: Option<Player>,
 
-    pub name: Option<String>,
-    pub uuid: Option<uuid::Uuid>,
+    pub gameprofile: Option<GameProfile>,
+
     pub config: Option<PlayerConfig>,
     pub brand: Option<String>,
 
@@ -63,19 +66,20 @@ pub struct Client {
     pub closed: bool,
     pub token: Rc<Token>,
     pub connection: TcpStream,
+    pub address: SocketAddr,
     enc: PacketEncoder,
     dec: PacketDecoder,
     pub client_packets_queue: VecDeque<RawPacket>,
 }
 
 impl Client {
-    pub fn new(token: Rc<Token>, connection: TcpStream) -> Self {
+    pub fn new(token: Rc<Token>, connection: TcpStream, address: SocketAddr) -> Self {
         Self {
-            name: None,
-            uuid: None,
+            gameprofile: None,
             config: None,
             brand: None,
             token,
+            address,
             player: None,
             connection_state: ConnectionState::HandShake,
             connection,
@@ -96,7 +100,7 @@ impl Client {
     pub fn enable_encryption(
         &mut self,
         server: &mut Server,
-        shared_secret: Vec<u8>,
+        shared_secret: Vec<u8>, // decrypted
     ) -> Result<(), EncryptionError> {
         self.encrytion = true;
         let shared_secret = server
diff --git a/pumpkin/src/main.rs b/pumpkin/src/main.rs
index 493a66bbb..1075c422e 100644
--- a/pumpkin/src/main.rs
+++ b/pumpkin/src/main.rs
@@ -95,7 +95,7 @@ fn main() -> io::Result<()> {
                         Interest::READABLE.add(Interest::WRITABLE),
                     )?;
 
-                    connections.insert(token, Client::new(Rc::new(token), connection));
+                    connections.insert(token, Client::new(Rc::new(token), connection, addr));
                 },
 
                 token => {