diff --git a/benchmarks/refs/heads/dev/karo/osk-protocol-extension.json b/benchmarks/refs/heads/dev/karo/osk-protocol-extension.json
index f9b282c..a37e5e6 100644
--- a/benchmarks/refs/heads/dev/karo/osk-protocol-extension.json
+++ b/benchmarks/refs/heads/dev/karo/osk-protocol-extension.json
@@ -1,5 +1,5 @@
 {
-  "lastUpdate": 1750873988920,
+  "lastUpdate": 1750874567530,
   "repoUrl": "https://github.com/rosenpass/rosenpass",
   "entries": {
     "Protocol Benchmarks": [
@@ -21406,6 +21406,492 @@
             "operation": "decaps"
           }
         ]
+      },
+      {
+        "commit": {
+          "author": {
+            "email": "karo@cupdev.net",
+            "name": "Karolin Varner",
+            "username": "koraa"
+          },
+          "committer": {
+            "email": "karo@cupdev.net",
+            "name": "Karolin Varner",
+            "username": "koraa"
+          },
+          "distinct": true,
+          "id": "b1a7d942954ce6a41decc5a9f93c95cffafde801",
+          "message": "feat: Support for custom osk (output key) domain separators in Rosenpass app\n\nThis allows for custom protocol extensions with custom domain\nseparators to be used without modifying the Rosenpass source code",
+          "timestamp": "2025-06-25T19:48:29+02:00",
+          "tree_id": "06a64e5ec9887cdaebaa258ed49833cbefba60a4",
+          "url": "https://github.com/rosenpass/rosenpass/commit/b1a7d942954ce6a41decc5a9f93c95cffafde801"
+        },
+        "date": 1750874566258,
+        "bigger_is_better": false,
+        "benches": [
+          {
+            "value": 169,
+            "range": "± 2",
+            "unit": "ns/iter",
+            "operating system": "x86_64-linux",
+            "primitive": "keyedhash",
+            "algorithm": "blake2b",
+            "implementation": "rustcrypto",
+            "operation": "hash",
+            "length": "0byte"
+          },
+          {
+            "value": 304,
+            "range": "± 0",
+            "unit": "ns/iter",
+            "operating system": "x86_64-linux",
+            "primitive": "keyedhash",
+            "algorithm": "blake2b",
+            "implementation": "rustcrypto",
+            "operation": "hash",
+            "length": "32byte"
+          },
+          {
+            "value": 302,
+            "range": "± 0",
+            "unit": "ns/iter",
+            "operating system": "x86_64-linux",
+            "primitive": "keyedhash",
+            "algorithm": "blake2b",
+            "implementation": "rustcrypto",
+            "operation": "hash",
+            "length": "64byte"
+          },
+          {
+            "value": 301,
+            "range": "± 6",
+            "unit": "ns/iter",
+            "operating system": "x86_64-linux",
+            "primitive": "keyedhash",
+            "algorithm": "blake2b",
+            "implementation": "rustcrypto",
+            "operation": "hash",
+            "length": "128byte"
+          },
+          {
+            "value": 1188,
+            "range": "± 10",
+            "unit": "ns/iter",
+            "operating system": "x86_64-linux",
+            "primitive": "keyedhash",
+            "algorithm": "blake2b",
+            "implementation": "rustcrypto",
+            "operation": "hash",
+            "length": "1024byte"
+          },
+          {
+            "value": 349,
+            "range": "± 0",
+            "unit": "ns/iter",
+            "operating system": "x86_64-linux",
+            "primitive": "keyedhash",
+            "algorithm": "blake2b",
+            "implementation": "libcrux",
+            "operation": "hash",
+            "length": "0byte"
+          },
+          {
+            "value": 541,
+            "range": "± 4",
+            "unit": "ns/iter",
+            "operating system": "x86_64-linux",
+            "primitive": "keyedhash",
+            "algorithm": "blake2b",
+            "implementation": "libcrux",
+            "operation": "hash",
+            "length": "32byte"
+          },
+          {
+            "value": 543,
+            "range": "± 28",
+            "unit": "ns/iter",
+            "operating system": "x86_64-linux",
+            "primitive": "keyedhash",
+            "algorithm": "blake2b",
+            "implementation": "libcrux",
+            "operation": "hash",
+            "length": "64byte"
+          },
+          {
+            "value": 524,
+            "range": "± 1",
+            "unit": "ns/iter",
+            "operating system": "x86_64-linux",
+            "primitive": "keyedhash",
+            "algorithm": "blake2b",
+            "implementation": "libcrux",
+            "operation": "hash",
+            "length": "128byte"
+          },
+          {
+            "value": 1501,
+            "range": "± 9",
+            "unit": "ns/iter",
+            "operating system": "x86_64-linux",
+            "primitive": "keyedhash",
+            "algorithm": "blake2b",
+            "implementation": "libcrux",
+            "operation": "hash",
+            "length": "1024byte"
+          },
+          {
+            "value": 832,
+            "range": "± 10",
+            "unit": "ns/iter",
+            "operating system": "x86_64-linux",
+            "primitive": "keyedhash",
+            "algorithm": "shake256",
+            "implementation": "rustcrypto",
+            "operation": "hash",
+            "length": "0byte"
+          },
+          {
+            "value": 834,
+            "range": "± 2",
+            "unit": "ns/iter",
+            "operating system": "x86_64-linux",
+            "primitive": "keyedhash",
+            "algorithm": "shake256",
+            "implementation": "rustcrypto",
+            "operation": "hash",
+            "length": "32byte"
+          },
+          {
+            "value": 833,
+            "range": "± 9",
+            "unit": "ns/iter",
+            "operating system": "x86_64-linux",
+            "primitive": "keyedhash",
+            "algorithm": "shake256",
+            "implementation": "rustcrypto",
+            "operation": "hash",
+            "length": "64byte"
+          },
+          {
+            "value": 1229,
+            "range": "± 2",
+            "unit": "ns/iter",
+            "operating system": "x86_64-linux",
+            "primitive": "keyedhash",
+            "algorithm": "shake256",
+            "implementation": "rustcrypto",
+            "operation": "hash",
+            "length": "128byte"
+          },
+          {
+            "value": 3577,
+            "range": "± 14",
+            "unit": "ns/iter",
+            "operating system": "x86_64-linux",
+            "primitive": "keyedhash",
+            "algorithm": "shake256",
+            "implementation": "rustcrypto",
+            "operation": "hash",
+            "length": "1024byte"
+          },
+          {
+            "value": 165,
+            "range": "± 0",
+            "unit": "ns/iter",
+            "operating system": "x86_64-linux",
+            "primitive": "aead",
+            "algorithm": "chacha20poly1305",
+            "implementation": "libcrux",
+            "operation": "encrypt",
+            "length": "0byte"
+          },
+          {
+            "value": 169,
+            "range": "± 0",
+            "unit": "ns/iter",
+            "operating system": "x86_64-linux",
+            "primitive": "aead",
+            "algorithm": "chacha20poly1305",
+            "implementation": "libcrux",
+            "operation": "decrypt",
+            "length": "0byte"
+          },
+          {
+            "value": 306,
+            "range": "± 1",
+            "unit": "ns/iter",
+            "operating system": "x86_64-linux",
+            "primitive": "aead",
+            "algorithm": "chacha20poly1305",
+            "implementation": "libcrux",
+            "operation": "encrypt",
+            "length": "32byte"
+          },
+          {
+            "value": 314,
+            "range": "± 1",
+            "unit": "ns/iter",
+            "operating system": "x86_64-linux",
+            "primitive": "aead",
+            "algorithm": "chacha20poly1305",
+            "implementation": "libcrux",
+            "operation": "decrypt",
+            "length": "32byte"
+          },
+          {
+            "value": 2761,
+            "range": "± 11",
+            "unit": "ns/iter",
+            "operating system": "x86_64-linux",
+            "primitive": "aead",
+            "algorithm": "chacha20poly1305",
+            "implementation": "libcrux",
+            "operation": "encrypt",
+            "length": "1024byte"
+          },
+          {
+            "value": 2769,
+            "range": "± 12",
+            "unit": "ns/iter",
+            "operating system": "x86_64-linux",
+            "primitive": "aead",
+            "algorithm": "chacha20poly1305",
+            "implementation": "libcrux",
+            "operation": "decrypt",
+            "length": "1024byte"
+          },
+          {
+            "value": 1271,
+            "range": "± 3",
+            "unit": "ns/iter",
+            "operating system": "x86_64-linux",
+            "primitive": "aead",
+            "algorithm": "chacha20poly1305",
+            "implementation": "rustcrypto",
+            "operation": "encrypt",
+            "length": "0byte"
+          },
+          {
+            "value": 1298,
+            "range": "± 2",
+            "unit": "ns/iter",
+            "operating system": "x86_64-linux",
+            "primitive": "aead",
+            "algorithm": "chacha20poly1305",
+            "implementation": "rustcrypto",
+            "operation": "decrypt",
+            "length": "0byte"
+          },
+          {
+            "value": 1409,
+            "range": "± 1",
+            "unit": "ns/iter",
+            "operating system": "x86_64-linux",
+            "primitive": "aead",
+            "algorithm": "chacha20poly1305",
+            "implementation": "rustcrypto",
+            "operation": "encrypt",
+            "length": "32byte"
+          },
+          {
+            "value": 1427,
+            "range": "± 1",
+            "unit": "ns/iter",
+            "operating system": "x86_64-linux",
+            "primitive": "aead",
+            "algorithm": "chacha20poly1305",
+            "implementation": "rustcrypto",
+            "operation": "decrypt",
+            "length": "32byte"
+          },
+          {
+            "value": 2455,
+            "range": "± 7",
+            "unit": "ns/iter",
+            "operating system": "x86_64-linux",
+            "primitive": "aead",
+            "algorithm": "chacha20poly1305",
+            "implementation": "rustcrypto",
+            "operation": "encrypt",
+            "length": "1024byt..."
+          },
+          {
+            "value": 2480,
+            "range": "± 2",
+            "unit": "ns/iter",
+            "operating system": "x86_64-linux",
+            "primitive": "aead",
+            "algorithm": "chacha20poly1305",
+            "implementation": "rustcrypto",
+            "operation": "decrypt",
+            "length": "1024byt..."
+          },
+          {
+            "value": 1544,
+            "range": "± 5",
+            "unit": "ns/iter",
+            "operating system": "x86_64-linux",
+            "primitive": "aead",
+            "algorithm": "xchacha20poly1305",
+            "implementation": "rustcrypto",
+            "operation": "encrypt",
+            "length": "0byte"
+          },
+          {
+            "value": 1559,
+            "range": "± 5",
+            "unit": "ns/iter",
+            "operating system": "x86_64-linux",
+            "primitive": "aead",
+            "algorithm": "xchacha20poly1305",
+            "implementation": "rustcrypto",
+            "operation": "decrypt",
+            "length": "0byte"
+          },
+          {
+            "value": 1691,
+            "range": "± 10",
+            "unit": "ns/iter",
+            "operating system": "x86_64-linux",
+            "primitive": "aead",
+            "algorithm": "xchacha20poly1305",
+            "implementation": "rustcrypto",
+            "operation": "encrypt",
+            "length": "32byte"
+          },
+          {
+            "value": 1700,
+            "range": "± 3",
+            "unit": "ns/iter",
+            "operating system": "x86_64-linux",
+            "primitive": "aead",
+            "algorithm": "xchacha20poly1305",
+            "implementation": "rustcrypto",
+            "operation": "decrypt",
+            "length": "32byte"
+          },
+          {
+            "value": 2755,
+            "range": "± 10",
+            "unit": "ns/iter",
+            "operating system": "x86_64-linux",
+            "primitive": "aead",
+            "algorithm": "xchacha20poly1305",
+            "implementation": "rustcrypto",
+            "operation": "encrypt",
+            "length": "1024by..."
+          },
+          {
+            "value": 2776,
+            "range": "± 3",
+            "unit": "ns/iter",
+            "operating system": "x86_64-linux",
+            "primitive": "aead",
+            "algorithm": "xchacha20poly1305",
+            "implementation": "rustcrypto",
+            "operation": "decrypt",
+            "length": "1024by..."
+          },
+          {
+            "value": 15364,
+            "range": "± 16",
+            "unit": "ns/iter",
+            "operating system": "x86_64-linux",
+            "primitive": "kem",
+            "algorithm": "kyber512",
+            "implementation": "libcrux",
+            "length": "-1",
+            "operation": "keygen"
+          },
+          {
+            "value": 14797,
+            "range": "± 85",
+            "unit": "ns/iter",
+            "operating system": "x86_64-linux",
+            "primitive": "kem",
+            "algorithm": "kyber512",
+            "implementation": "libcrux",
+            "length": "-1",
+            "operation": "encaps"
+          },
+          {
+            "value": 18252,
+            "range": "± 70",
+            "unit": "ns/iter",
+            "operating system": "x86_64-linux",
+            "primitive": "kem",
+            "algorithm": "kyber512",
+            "implementation": "libcrux",
+            "length": "-1",
+            "operation": "decaps"
+          },
+          {
+            "value": 8706,
+            "range": "± 19",
+            "unit": "ns/iter",
+            "operating system": "x86_64-linux",
+            "primitive": "kem",
+            "algorithm": "kyber512",
+            "implementation": "oqs",
+            "length": "-1",
+            "operation": "keygen"
+          },
+          {
+            "value": 11856,
+            "range": "± 123",
+            "unit": "ns/iter",
+            "operating system": "x86_64-linux",
+            "primitive": "kem",
+            "algorithm": "kyber512",
+            "implementation": "oqs",
+            "length": "-1",
+            "operation": "encaps"
+          },
+          {
+            "value": 8939,
+            "range": "± 123",
+            "unit": "ns/iter",
+            "operating system": "x86_64-linux",
+            "primitive": "kem",
+            "algorithm": "kyber512",
+            "implementation": "oqs",
+            "length": "-1",
+            "operation": "decaps"
+          },
+          {
+            "value": 116342349,
+            "range": "± 28165938",
+            "unit": "ns/iter",
+            "operating system": "x86_64-linux",
+            "primitive": "kem",
+            "algorithm": "classicmceliece460896",
+            "implementation": "oqs",
+            "length": "-1",
+            "operation": "keygen"
+          },
+          {
+            "value": 33987,
+            "range": "± 461",
+            "unit": "ns/iter",
+            "operating system": "x86_64-linux",
+            "primitive": "kem",
+            "algorithm": "classicmceliece460896",
+            "implementation": "oqs",
+            "length": "-1",
+            "operation": "encaps"
+          },
+          {
+            "value": 94582,
+            "range": "± 202",
+            "unit": "ns/iter",
+            "operating system": "x86_64-linux",
+            "primitive": "kem",
+            "algorithm": "classicmceliece460896",
+            "implementation": "oqs",
+            "length": "-1",
+            "operation": "decaps"
+          }
+        ]
       }
     ]
   },