diff --git a/benchmarks/pr/664.json b/benchmarks/pr/664.json
index 7cdbcd0..8bb666f 100644
--- a/benchmarks/pr/664.json
+++ b/benchmarks/pr/664.json
@@ -1,5 +1,5 @@
 {
-  "lastUpdate": 1750854665363,
+  "lastUpdate": 1750855145181,
   "repoUrl": "https://github.com/rosenpass/rosenpass",
   "entries": {
     "Protocol Benchmarks": [
@@ -4392,6 +4392,884 @@
             "run time": "below 1ms"
           }
         ]
+      },
+      {
+        "commit": {
+          "author": {
+            "name": "rosenpass",
+            "username": "rosenpass"
+          },
+          "committer": {
+            "name": "rosenpass",
+            "username": "rosenpass"
+          },
+          "id": "3a90192c0f2c20fa0ce9deb09b7f6e7770c62c18",
+          "message": "Specify WireGuard OSK as a protocol extension & allow for custom OSK domain separators",
+          "timestamp": "2025-06-24T12:50:57Z",
+          "url": "https://github.com/rosenpass/rosenpass/pull/664/commits/3a90192c0f2c20fa0ce9deb09b7f6e7770c62c18"
+        },
+        "date": 1750855144520,
+        "bigger_is_better": false,
+        "benches": [
+          {
+            "name": "handle_resp_hello",
+            "unit": "ns/iter",
+            "value": "86627805",
+            "range": "± 280269",
+            "protocol version": "V02",
+            "sample size": "100",
+            "operating system": "linux",
+            "architecture": "x86",
+            "run time": "long"
+          },
+          {
+            "name": "IHR5",
+            "unit": "ns/iter",
+            "value": "87412278",
+            "range": "± 2291365",
+            "protocol version": "V02",
+            "sample size": "200",
+            "operating system": "linux",
+            "architecture": "x86",
+            "run time": "long"
+          },
+          {
+            "name": "ICR7",
+            "unit": "ns/iter",
+            "value": "12624",
+            "range": "± 899",
+            "protocol version": "V02",
+            "sample size": "100",
+            "operating system": "linux",
+            "architecture": "x86",
+            "run time": "below 1ms"
+          },
+          {
+            "name": "ICR2",
+            "unit": "ns/iter",
+            "value": "16490",
+            "range": "± 17085",
+            "protocol version": "V02",
+            "sample size": "100",
+            "operating system": "linux",
+            "architecture": "x86",
+            "run time": "below 1ms"
+          },
+          {
+            "name": "IHI8",
+            "unit": "ns/iter",
+            "value": "14006",
+            "range": "± 104",
+            "protocol version": "V02",
+            "sample size": "100",
+            "operating system": "linux",
+            "architecture": "x86",
+            "run time": "below 1ms"
+          },
+          {
+            "name": "ICI7",
+            "unit": "ns/iter",
+            "value": "13262",
+            "range": "± 870",
+            "protocol version": "V02",
+            "sample size": "100",
+            "operating system": "linux",
+            "architecture": "x86",
+            "run time": "below 1ms"
+          },
+          {
+            "name": "IHI7",
+            "unit": "ns/iter",
+            "value": "1138952",
+            "range": "± 4494",
+            "protocol version": "V02",
+            "sample size": "100",
+            "operating system": "linux",
+            "architecture": "x86",
+            "run time": "medium"
+          },
+          {
+            "name": "IHI4",
+            "unit": "ns/iter",
+            "value": "15953",
+            "range": "± 1476",
+            "protocol version": "V02",
+            "sample size": "100",
+            "operating system": "linux",
+            "architecture": "x86",
+            "run time": "below 1ms"
+          },
+          {
+            "name": "handle_init_hello",
+            "unit": "ns/iter",
+            "value": "91974237",
+            "range": "± 2182933",
+            "protocol version": "V02",
+            "sample size": "200",
+            "operating system": "linux",
+            "architecture": "x86",
+            "run time": "long"
+          },
+          {
+            "name": "ICR1",
+            "unit": "ns/iter",
+            "value": "1980145",
+            "range": "± 840843",
+            "protocol version": "V02",
+            "sample size": "200",
+            "operating system": "linux",
+            "architecture": "x86",
+            "run time": "medium"
+          },
+          {
+            "name": "IHR1",
+            "unit": "ns/iter",
+            "value": "1973965",
+            "range": "± 849821",
+            "protocol version": "V02",
+            "sample size": "200",
+            "operating system": "linux",
+            "architecture": "x86",
+            "run time": "medium"
+          },
+          {
+            "name": "IHR7",
+            "unit": "ns/iter",
+            "value": "1135337",
+            "range": "± 4349",
+            "protocol version": "V02",
+            "sample size": "100",
+            "operating system": "linux",
+            "architecture": "x86",
+            "run time": "medium"
+          },
+          {
+            "name": "RHR7",
+            "unit": "ns/iter",
+            "value": "14444",
+            "range": "± 963",
+            "protocol version": "V02",
+            "sample size": "100",
+            "operating system": "linux",
+            "architecture": "x86",
+            "run time": "below 1ms"
+          },
+          {
+            "name": "IHR6",
+            "unit": "ns/iter",
+            "value": "13816",
+            "range": "± 3157",
+            "protocol version": "V02",
+            "sample size": "200",
+            "operating system": "linux",
+            "architecture": "x86",
+            "run time": "below 1ms"
+          },
+          {
+            "name": "ICI4",
+            "unit": "ns/iter",
+            "value": "14306",
+            "range": "± 828",
+            "protocol version": "V02",
+            "sample size": "100",
+            "operating system": "linux",
+            "architecture": "x86",
+            "run time": "below 1ms"
+          },
+          {
+            "name": "handle_resp_conf",
+            "unit": "ns/iter",
+            "value": "1129854",
+            "range": "± 6054",
+            "protocol version": "V02",
+            "sample size": "100",
+            "operating system": "linux",
+            "architecture": "x86",
+            "run time": "medium"
+          },
+          {
+            "name": "RHR5",
+            "unit": "ns/iter",
+            "value": "1535916",
+            "range": "± 30957",
+            "protocol version": "V02",
+            "sample size": "100",
+            "operating system": "linux",
+            "architecture": "x86",
+            "run time": "medium"
+          },
+          {
+            "name": "IHI6",
+            "unit": "ns/iter",
+            "value": "1139570",
+            "range": "± 10809",
+            "protocol version": "V02",
+            "sample size": "100",
+            "operating system": "linux",
+            "architecture": "x86",
+            "run time": "medium"
+          },
+          {
+            "name": "ICR3",
+            "unit": "ns/iter",
+            "value": "14201",
+            "range": "± 1355",
+            "protocol version": "V02",
+            "sample size": "100",
+            "operating system": "linux",
+            "architecture": "x86",
+            "run time": "below 1ms"
+          },
+          {
+            "name": "RHI7",
+            "unit": "ns/iter",
+            "value": "16443",
+            "range": "± 1779",
+            "protocol version": "V02",
+            "sample size": "100",
+            "operating system": "linux",
+            "architecture": "x86",
+            "run time": "below 1ms"
+          },
+          {
+            "name": "IHI1",
+            "unit": "ns/iter",
+            "value": "1127379",
+            "range": "± 12344",
+            "protocol version": "V02",
+            "sample size": "100",
+            "operating system": "linux",
+            "architecture": "x86",
+            "run time": "medium"
+          },
+          {
+            "name": "RHR4",
+            "unit": "ns/iter",
+            "value": "126573",
+            "range": "± 3836",
+            "protocol version": "V02",
+            "sample size": "100",
+            "operating system": "linux",
+            "architecture": "x86",
+            "run time": "below 1ms"
+          },
+          {
+            "name": "RHI5",
+            "unit": "ns/iter",
+            "value": "86421274",
+            "range": "± 280770",
+            "protocol version": "V02",
+            "sample size": "100",
+            "operating system": "linux",
+            "architecture": "x86",
+            "run time": "long"
+          },
+          {
+            "name": "RHI6",
+            "unit": "ns/iter",
+            "value": "7187",
+            "range": "± 243",
+            "protocol version": "V02",
+            "sample size": "100",
+            "operating system": "linux",
+            "architecture": "x86",
+            "run time": "below 1ms"
+          },
+          {
+            "name": "ICR4",
+            "unit": "ns/iter",
+            "value": "14068",
+            "range": "± 1107",
+            "protocol version": "V02",
+            "sample size": "100",
+            "operating system": "linux",
+            "architecture": "x86",
+            "run time": "below 1ms"
+          },
+          {
+            "name": "IHI5",
+            "unit": "ns/iter",
+            "value": "1538644",
+            "range": "± 37975",
+            "protocol version": "V02",
+            "sample size": "100",
+            "operating system": "linux",
+            "architecture": "x86",
+            "run time": "medium"
+          },
+          {
+            "name": "IHR8",
+            "unit": "ns/iter",
+            "value": "14220",
+            "range": "± 903",
+            "protocol version": "V02",
+            "sample size": "100",
+            "operating system": "linux",
+            "architecture": "x86",
+            "run time": "below 1ms"
+          },
+          {
+            "name": "IHI3",
+            "unit": "ns/iter",
+            "value": "78353",
+            "range": "± 3396",
+            "protocol version": "V02",
+            "sample size": "100",
+            "operating system": "linux",
+            "architecture": "x86",
+            "run time": "below 1ms"
+          },
+          {
+            "name": "RHR1",
+            "unit": "ns/iter",
+            "value": "580",
+            "range": "± 113",
+            "protocol version": "V02",
+            "sample size": "100",
+            "operating system": "linux",
+            "architecture": "x86",
+            "run time": "below 1us"
+          },
+          {
+            "name": "RHR6",
+            "unit": "ns/iter",
+            "value": "2265639",
+            "range": "± 11573",
+            "protocol version": "V02",
+            "sample size": "100",
+            "operating system": "linux",
+            "architecture": "x86",
+            "run time": "medium"
+          },
+          {
+            "name": "RHI4",
+            "unit": "ns/iter",
+            "value": "124055",
+            "range": "± 2770",
+            "protocol version": "V02",
+            "sample size": "100",
+            "operating system": "linux",
+            "architecture": "x86",
+            "run time": "below 1ms"
+          },
+          {
+            "name": "handle_init_conf",
+            "unit": "ns/iter",
+            "value": "2010540",
+            "range": "± 811335",
+            "protocol version": "V02",
+            "sample size": "200",
+            "operating system": "linux",
+            "architecture": "x86",
+            "run time": "medium"
+          },
+          {
+            "name": "ICR6",
+            "unit": "ns/iter",
+            "value": "50",
+            "range": "± 6",
+            "protocol version": "V02",
+            "sample size": "100",
+            "operating system": "linux",
+            "architecture": "x86",
+            "run time": "below 1us"
+          },
+          {
+            "name": "ICI3",
+            "unit": "ns/iter",
+            "value": "14515",
+            "range": "± 1716",
+            "protocol version": "V02",
+            "sample size": "100",
+            "operating system": "linux",
+            "architecture": "x86",
+            "run time": "below 1ms"
+          },
+          {
+            "name": "RHR3",
+            "unit": "ns/iter",
+            "value": "14211",
+            "range": "± 1320",
+            "protocol version": "V02",
+            "sample size": "100",
+            "operating system": "linux",
+            "architecture": "x86",
+            "run time": "below 1ms"
+          },
+          {
+            "name": "RHI3",
+            "unit": "ns/iter",
+            "value": "14385",
+            "range": "± 1651",
+            "protocol version": "V02",
+            "sample size": "100",
+            "operating system": "linux",
+            "architecture": "x86",
+            "run time": "below 1ms"
+          },
+          {
+            "name": "handle_initiation",
+            "unit": "ns/iter",
+            "value": "5058752",
+            "range": "± 54245",
+            "protocol version": "V02",
+            "sample size": "100",
+            "operating system": "linux",
+            "architecture": "x86",
+            "run time": "medium"
+          },
+          {
+            "name": "IHR4",
+            "unit": "ns/iter",
+            "value": "18330",
+            "range": "± 2577",
+            "protocol version": "V02",
+            "sample size": "200",
+            "operating system": "linux",
+            "architecture": "x86",
+            "run time": "below 1ms"
+          },
+          {
+            "name": "IHI2",
+            "unit": "ns/iter",
+            "value": "271",
+            "range": "± 1088",
+            "protocol version": "V02",
+            "sample size": "100",
+            "operating system": "linux",
+            "architecture": "x86",
+            "run time": "below 1us"
+          },
+          {
+            "name": "ICR7",
+            "unit": "ns/iter",
+            "value": "14105",
+            "range": "± 1460",
+            "protocol version": "V03",
+            "sample size": "100",
+            "operating system": "linux",
+            "architecture": "x86",
+            "run time": "below 1ms"
+          },
+          {
+            "name": "IHI6",
+            "unit": "ns/iter",
+            "value": "2828866",
+            "range": "± 11854",
+            "protocol version": "V03",
+            "sample size": "100",
+            "operating system": "linux",
+            "architecture": "x86",
+            "run time": "medium"
+          },
+          {
+            "name": "ICI7",
+            "unit": "ns/iter",
+            "value": "15003",
+            "range": "± 2016",
+            "protocol version": "V03",
+            "sample size": "100",
+            "operating system": "linux",
+            "architecture": "x86",
+            "run time": "below 1ms"
+          },
+          {
+            "name": "ICR1",
+            "unit": "ns/iter",
+            "value": "2836590",
+            "range": "± 46606",
+            "protocol version": "V03",
+            "sample size": "100",
+            "operating system": "linux",
+            "architecture": "x86",
+            "run time": "medium"
+          },
+          {
+            "name": "IHR6",
+            "unit": "ns/iter",
+            "value": "18689",
+            "range": "± 1881",
+            "protocol version": "V03",
+            "sample size": "100",
+            "operating system": "linux",
+            "architecture": "x86",
+            "run time": "below 1ms"
+          },
+          {
+            "name": "handle_init_conf",
+            "unit": "ns/iter",
+            "value": "2902621",
+            "range": "± 52120",
+            "protocol version": "V03",
+            "sample size": "100",
+            "operating system": "linux",
+            "architecture": "x86",
+            "run time": "medium"
+          },
+          {
+            "name": "RHR3",
+            "unit": "ns/iter",
+            "value": "15945",
+            "range": "± 1085",
+            "protocol version": "V03",
+            "sample size": "100",
+            "operating system": "linux",
+            "architecture": "x86",
+            "run time": "below 1ms"
+          },
+          {
+            "name": "RHI3",
+            "unit": "ns/iter",
+            "value": "16049",
+            "range": "± 1308",
+            "protocol version": "V03",
+            "sample size": "100",
+            "operating system": "linux",
+            "architecture": "x86",
+            "run time": "below 1ms"
+          },
+          {
+            "name": "RHI6",
+            "unit": "ns/iter",
+            "value": "8911",
+            "range": "± 1051",
+            "protocol version": "V03",
+            "sample size": "100",
+            "operating system": "linux",
+            "architecture": "x86",
+            "run time": "below 1ms"
+          },
+          {
+            "name": "ICR3",
+            "unit": "ns/iter",
+            "value": "15809",
+            "range": "± 118",
+            "protocol version": "V03",
+            "sample size": "100",
+            "operating system": "linux",
+            "architecture": "x86",
+            "run time": "below 1ms"
+          },
+          {
+            "name": "handle_init_hello",
+            "unit": "ns/iter",
+            "value": "102795322",
+            "range": "± 236471",
+            "protocol version": "V03",
+            "sample size": "100",
+            "operating system": "linux",
+            "architecture": "x86",
+            "run time": "long"
+          },
+          {
+            "name": "RHR7",
+            "unit": "ns/iter",
+            "value": "16251",
+            "range": "± 1610",
+            "protocol version": "V03",
+            "sample size": "100",
+            "operating system": "linux",
+            "architecture": "x86",
+            "run time": "below 1ms"
+          },
+          {
+            "name": "ICR2",
+            "unit": "ns/iter",
+            "value": "17502",
+            "range": "± 11364",
+            "protocol version": "V03",
+            "sample size": "100",
+            "operating system": "linux",
+            "architecture": "x86",
+            "run time": "below 1ms"
+          },
+          {
+            "name": "IHR7",
+            "unit": "ns/iter",
+            "value": "2825356",
+            "range": "± 19357",
+            "protocol version": "V03",
+            "sample size": "100",
+            "operating system": "linux",
+            "architecture": "x86",
+            "run time": "medium"
+          },
+          {
+            "name": "RHI4",
+            "unit": "ns/iter",
+            "value": "131961",
+            "range": "± 2667",
+            "protocol version": "V03",
+            "sample size": "100",
+            "operating system": "linux",
+            "architecture": "x86",
+            "run time": "below 1ms"
+          },
+          {
+            "name": "RHR1",
+            "unit": "ns/iter",
+            "value": "457",
+            "range": "± 206",
+            "protocol version": "V03",
+            "sample size": "100",
+            "operating system": "linux",
+            "architecture": "x86",
+            "run time": "below 1us"
+          },
+          {
+            "name": "RHR4",
+            "unit": "ns/iter",
+            "value": "133523",
+            "range": "± 3879",
+            "protocol version": "V03",
+            "sample size": "100",
+            "operating system": "linux",
+            "architecture": "x86",
+            "run time": "below 1ms"
+          },
+          {
+            "name": "IHI1",
+            "unit": "ns/iter",
+            "value": "2815442",
+            "range": "± 18147",
+            "protocol version": "V03",
+            "sample size": "100",
+            "operating system": "linux",
+            "architecture": "x86",
+            "run time": "medium"
+          },
+          {
+            "name": "IHI8",
+            "unit": "ns/iter",
+            "value": "16098",
+            "range": "± 1933",
+            "protocol version": "V03",
+            "sample size": "100",
+            "operating system": "linux",
+            "architecture": "x86",
+            "run time": "below 1ms"
+          },
+          {
+            "name": "IHI2",
+            "unit": "ns/iter",
+            "value": "175",
+            "range": "± 59",
+            "protocol version": "V03",
+            "sample size": "100",
+            "operating system": "linux",
+            "architecture": "x86",
+            "run time": "below 1us"
+          },
+          {
+            "name": "handle_resp_conf",
+            "unit": "ns/iter",
+            "value": "2817692",
+            "range": "± 8946",
+            "protocol version": "V03",
+            "sample size": "100",
+            "operating system": "linux",
+            "architecture": "x86",
+            "run time": "medium"
+          },
+          {
+            "name": "IHR5",
+            "unit": "ns/iter",
+            "value": "88053751",
+            "range": "± 187617",
+            "protocol version": "V03",
+            "sample size": "100",
+            "operating system": "linux",
+            "architecture": "x86",
+            "run time": "long"
+          },
+          {
+            "name": "IHI7",
+            "unit": "ns/iter",
+            "value": "2826065",
+            "range": "± 25849",
+            "protocol version": "V03",
+            "sample size": "100",
+            "operating system": "linux",
+            "architecture": "x86",
+            "run time": "medium"
+          },
+          {
+            "name": "IHR1",
+            "unit": "ns/iter",
+            "value": "2812908",
+            "range": "± 9935",
+            "protocol version": "V03",
+            "sample size": "100",
+            "operating system": "linux",
+            "architecture": "x86",
+            "run time": "medium"
+          },
+          {
+            "name": "RHR5",
+            "unit": "ns/iter",
+            "value": "3224071",
+            "range": "± 35219",
+            "protocol version": "V03",
+            "sample size": "100",
+            "operating system": "linux",
+            "architecture": "x86",
+            "run time": "medium"
+          },
+          {
+            "name": "handle_initiation",
+            "unit": "ns/iter",
+            "value": "11813835",
+            "range": "± 68627",
+            "protocol version": "V03",
+            "sample size": "100",
+            "operating system": "linux",
+            "architecture": "x86",
+            "run time": "medium"
+          },
+          {
+            "name": "ICI3",
+            "unit": "ns/iter",
+            "value": "16070",
+            "range": "± 1344",
+            "protocol version": "V03",
+            "sample size": "100",
+            "operating system": "linux",
+            "architecture": "x86",
+            "run time": "below 1ms"
+          },
+          {
+            "name": "ICI4",
+            "unit": "ns/iter",
+            "value": "16165",
+            "range": "± 1597",
+            "protocol version": "V03",
+            "sample size": "100",
+            "operating system": "linux",
+            "architecture": "x86",
+            "run time": "below 1ms"
+          },
+          {
+            "name": "IHR4",
+            "unit": "ns/iter",
+            "value": "20442",
+            "range": "± 1301",
+            "protocol version": "V03",
+            "sample size": "100",
+            "operating system": "linux",
+            "architecture": "x86",
+            "run time": "below 1ms"
+          },
+          {
+            "name": "IHI5",
+            "unit": "ns/iter",
+            "value": "3222412",
+            "range": "± 32802",
+            "protocol version": "V03",
+            "sample size": "100",
+            "operating system": "linux",
+            "architecture": "x86",
+            "run time": "medium"
+          },
+          {
+            "name": "RHR6",
+            "unit": "ns/iter",
+            "value": "5655804",
+            "range": "± 148431",
+            "protocol version": "V03",
+            "sample size": "100",
+            "operating system": "linux",
+            "architecture": "x86",
+            "run time": "medium"
+          },
+          {
+            "name": "RHI7",
+            "unit": "ns/iter",
+            "value": "18105",
+            "range": "± 2029",
+            "protocol version": "V03",
+            "sample size": "100",
+            "operating system": "linux",
+            "architecture": "x86",
+            "run time": "below 1ms"
+          },
+          {
+            "name": "RHI5",
+            "unit": "ns/iter",
+            "value": "88051404",
+            "range": "± 121450",
+            "protocol version": "V03",
+            "sample size": "100",
+            "operating system": "linux",
+            "architecture": "x86",
+            "run time": "long"
+          },
+          {
+            "name": "ICR6",
+            "unit": "ns/iter",
+            "value": "56",
+            "range": "± 16",
+            "protocol version": "V03",
+            "sample size": "100",
+            "operating system": "linux",
+            "architecture": "x86",
+            "run time": "below 1us"
+          },
+          {
+            "name": "IHR8",
+            "unit": "ns/iter",
+            "value": "16223",
+            "range": "± 2140",
+            "protocol version": "V03",
+            "sample size": "100",
+            "operating system": "linux",
+            "architecture": "x86",
+            "run time": "below 1ms"
+          },
+          {
+            "name": "handle_resp_hello",
+            "unit": "ns/iter",
+            "value": "88275654",
+            "range": "± 121350",
+            "protocol version": "V03",
+            "sample size": "100",
+            "operating system": "linux",
+            "architecture": "x86",
+            "run time": "long"
+          },
+          {
+            "name": "IHI3",
+            "unit": "ns/iter",
+            "value": "79257",
+            "range": "± 4069",
+            "protocol version": "V03",
+            "sample size": "100",
+            "operating system": "linux",
+            "architecture": "x86",
+            "run time": "below 1ms"
+          },
+          {
+            "name": "ICR4",
+            "unit": "ns/iter",
+            "value": "16050",
+            "range": "± 2415",
+            "protocol version": "V03",
+            "sample size": "100",
+            "operating system": "linux",
+            "architecture": "x86",
+            "run time": "below 1ms"
+          },
+          {
+            "name": "IHI4",
+            "unit": "ns/iter",
+            "value": "20804",
+            "range": "± 4006",
+            "protocol version": "V03",
+            "sample size": "100",
+            "operating system": "linux",
+            "architecture": "x86",
+            "run time": "below 1ms"
+          }
+        ]
       }
     ],
     "Crypto Primitives Benchmarks": [