diff --git a/.ci/gen-workflow-files.nu b/.ci/gen-workflow-files.nu
index 8c1ea61..f1eaeec 100755
--- a/.ci/gen-workflow-files.nu
+++ b/.ci/gen-workflow-files.nu
@@ -1,6 +1,6 @@
 #!/usr/bin/env nu
 
-use log *
+use std log
 
 # cd to git root
 cd (git rev-parse --show-toplevel)
@@ -116,6 +116,7 @@ for system in ($targets | columns) {
       } }
       | filter {|it| $it.needed}
       | each {|it| job-id $system $it.name}
+      | sort
     )
 
     mut new_job = {
@@ -197,4 +198,4 @@ $cachix_workflow | to yaml | save --force .github/workflows/nix.yaml
 $release_workflow | to yaml | save --force .github/workflows/release.yaml
 
 log info "prettify generated yaml"
-prettier -w .github/workflows/
\ No newline at end of file
+prettier -w .github/workflows/
diff --git a/.github/dependabot.yml b/.github/dependabot.yml
new file mode 100644
index 0000000..219c13a
--- /dev/null
+++ b/.github/dependabot.yml
@@ -0,0 +1,6 @@
+version: 2
+updates:
+  - package-ecosystem: "cargo"
+    directory: "/"
+    schedule:
+      interval: "daily"
diff --git a/.github/workflows/nix.yaml b/.github/workflows/nix.yaml
index 2584025..14f8513 100644
--- a/.github/workflows/nix.yaml
+++ b/.github/workflows/nix.yaml
@@ -210,8 +210,8 @@ jobs:
     runs-on:
       - ubuntu-latest
     needs:
-      - x86_64-linux---rosenpass-static-oci-image
       - x86_64-linux---rosenpass-static
+      - x86_64-linux---rosenpass-static-oci-image
     steps:
       - uses: actions/checkout@v3
       - uses: cachix/install-nix-action@v22
diff --git a/.github/workflows/qc.yaml b/.github/workflows/qc.yaml
index 9710890..61e7eef 100644
--- a/.github/workflows/qc.yaml
+++ b/.github/workflows/qc.yaml
@@ -51,7 +51,7 @@ jobs:
         # liboqs requires quite a lot of stack memory, thus we adjust
         # the default stack size picked for new threads (which is used
         # by `cargo test`) to be _big enough_. Setting it to 8 MiB
-      - run: RUST_MIN_STACK=8388608 cargo bench --no-run --workspace
+      - run: RUST_MIN_STACK=8388608 cargo bench --workspace --exclude rosenpass-fuzzing
 
   cargo-audit:
     runs-on: ubuntu-latest
diff --git a/Cargo.lock b/Cargo.lock
index e3e4c18..620dc8e 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -108,9 +108,9 @@ dependencies = [
 
 [[package]]
 name = "anyhow"
-version = "1.0.75"
+version = "1.0.82"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "a4668cab20f66d8d020e1fbc0ebe47217433c1b6c8f2040faf858554e394ace6"
+checksum = "f538837af36e6f6a9be0faa67f9a314f8119e4e4b5867c6ab40ed60360142519"
 dependencies = [
  "backtrace",
 ]
@@ -167,9 +167,9 @@ dependencies = [
 
 [[package]]
 name = "base64"
-version = "0.21.5"
+version = "0.21.7"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "35636a1494ede3b646cc98f74f8e62c773a38a659ebc777a2cf26b9b74171df9"
+checksum = "9d297deb1925b89f2ccc13d7635fa0714f12c87adce1c75356b39ca9b7178567"
 
 [[package]]
 name = "bindgen"
@@ -555,9 +555,9 @@ checksum = "a26ae43d7bcc3b814de94796a5e736d4029efb0ee900c12e2d54c993ad1a1e07"
 
 [[package]]
 name = "env_logger"
-version = "0.10.1"
+version = "0.10.2"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "95b3f3e67048839cb0d0781f445682a35113da7121f7c949db0e2be96a4fbece"
+checksum = "4cd405aab171cb85d6735e5c8d9db038c17d3ca007a4d2c25f337935c3d90580"
 dependencies = [
  "humantime",
  "is-terminal",
@@ -821,9 +821,9 @@ dependencies = [
 
 [[package]]
 name = "log"
-version = "0.4.20"
+version = "0.4.21"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "b5e6163cb8c49088c2c36f57875e58ccd8c87c7427f7fbd50ea6710b2f3f2e8f"
+checksum = "90ed8c1e510134f979dbc4f070f87d4313098b704861a105fe34231c70a3901c"
 
 [[package]]
 name = "memchr"
@@ -833,9 +833,9 @@ checksum = "f665ee40bc4a3c5590afb1e9677db74a508659dfd71e126420da8274909a0167"
 
 [[package]]
 name = "memoffset"
-version = "0.9.0"
+version = "0.9.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "5a634b1c61a95585bd15607c6ab0c4e5b226e695ff2800ba0cdccddf208c406c"
+checksum = "488016bfae457b036d996092f6cb448677611ce4449e970ceaf42695203f218a"
 dependencies = [
  "autocfg",
 ]
@@ -1011,9 +1011,9 @@ dependencies = [
 
 [[package]]
 name = "proc-macro2"
-version = "1.0.70"
+version = "1.0.79"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "39278fbbf5fb4f646ce651690877f89d1c5811a3d4acb27700c1cb3cdb78fd3b"
+checksum = "e835ff2298f5721608eb1a980ecaee1aef2c132bf95ecc026a11b7bf3c01c02e"
 dependencies = [
  "unicode-ident",
 ]
@@ -1029,9 +1029,9 @@ dependencies = [
 
 [[package]]
 name = "quote"
-version = "1.0.33"
+version = "1.0.35"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "5267fca4496028628a95160fc423a33e8b2e6af8a5302579e322e4b520293cae"
+checksum = "291ec9ab5efd934aaf503a6466c5d5251535d108ee747472c3977cc5acc868ef"
 dependencies = [
  "proc-macro2",
 ]
@@ -1293,18 +1293,18 @@ checksum = "b97ed7a9823b74f99c7742f5336af7be5ecd3eeafcb1507d1fa93347b1d589b0"
 
 [[package]]
 name = "serde"
-version = "1.0.193"
+version = "1.0.197"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "25dd9975e68d0cb5aa1120c288333fc98731bd1dd12f561e468ea4728c042b89"
+checksum = "3fb1c873e1b9b056a4dc4c0c198b24c3ffa059243875552b2bd0933b1aee4ce2"
 dependencies = [
  "serde_derive",
 ]
 
 [[package]]
 name = "serde_derive"
-version = "1.0.193"
+version = "1.0.197"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "43576ca501357b9b071ac53cdc7da8ef0cbd9493d8df094cd821777ea6e894d3"
+checksum = "7eb0b34b42edc17f6b7cac84a52a1c5f0e1bb2227e997ca9011ea3dd34e8610b"
 dependencies = [
  "proc-macro2",
  "quote",
@@ -1385,9 +1385,9 @@ checksum = "81cdd64d312baedb58e21336b31bc043b77e01cc99033ce76ef539f78e965ebc"
 
 [[package]]
 name = "syn"
-version = "2.0.39"
+version = "2.0.53"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "23e78b90f2fcf45d3e842032ce32e3f2d1545ba6636271dcbf24fa306d87be7a"
+checksum = "7383cd0e49fff4b6b90ca5670bfd3e9d6a733b3f90c686605aa7eec8c4996032"
 dependencies = [
  "proc-macro2",
  "quote",
@@ -1417,18 +1417,18 @@ checksum = "222a222a5bfe1bba4a77b45ec488a741b3cb8872e5e499451fd7d0129c9c7c3d"
 
 [[package]]
 name = "thiserror"
-version = "1.0.50"
+version = "1.0.58"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "f9a7210f5c9a7156bb50aa36aed4c95afb51df0df00713949448cf9e97d382d2"
+checksum = "03468839009160513471e86a034bb2c5c0e4baae3b43f79ffc55c4a5427b3297"
 dependencies = [
  "thiserror-impl",
 ]
 
 [[package]]
 name = "thiserror-impl"
-version = "1.0.50"
+version = "1.0.58"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "266b2e40bc00e5a6c09c3584011e08b06f123c00362c92b975ba9843aaaa14b8"
+checksum = "c61f3ba182994efc43764a46c018c347bc492c79f024e705f46567b418f6d4f7"
 dependencies = [
  "proc-macro2",
  "quote",
diff --git a/Cargo.toml b/Cargo.toml
index 4d6d5bf..a625694 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -35,12 +35,12 @@ test_bin = "0.4.0"
 libfuzzer-sys = "0.4"
 stacker = "0.1.15"
 doc-comment = "0.3.3"
-base64 = "0.21.5"
+base64 = "0.21.7"
 zeroize = "1.7.0"
-memoffset = "0.9.0"
-thiserror = "1.0.50"
+memoffset = "0.9.1"
+thiserror = "1.0.58"
 paste = "1.0.14"
-env_logger = "0.10.1"
+env_logger = "0.10.2"
 toml = "0.7.8"
 static_assertions = "1.1.0"
 allocator-api2 = "0.2.14"
@@ -48,11 +48,11 @@ allocator-api2-tests = "0.2.14"
 memsec = "0.6.3"
 rand = "0.8.5"
 typenum = "1.17.0"
-log = { version = "0.4.20" }
+log = { version = "0.4.21" }
 clap = { version = "4.4.10", features = ["derive"] }
-serde = { version = "1.0.193", features = ["derive"] }
+serde = { version = "1.0.197", features = ["derive"] }
 arbitrary = { version = "1.3.2", features = ["derive"] }
-anyhow = { version = "1.0.75", features = ["backtrace", "std"] }
+anyhow = { version = "1.0.82", features = ["backtrace", "std"] }
 mio = { version = "0.8.11", features = ["net", "os-poll"] }
 oqs-sys = { version = "0.8", default-features = false, features = ['classic_mceliece', 'kyber']  }
 blake2 = "0.10.6"
diff --git a/constant-time/src/compare.rs b/constant-time/src/compare.rs
index d5e3605..301da6e 100644
--- a/constant-time/src/compare.rs
+++ b/constant-time/src/compare.rs
@@ -1,3 +1,18 @@
+use core::ptr;
+
+/// Little endian memcmp version of quinier/memsec
+/// https://github.com/quininer/memsec/blob/bbc647967ff6d20d6dccf1c85f5d9037fcadd3b0/src/lib.rs#L30
+#[inline(never)]
+pub unsafe fn memcmp_le(b1: *const u8, b2: *const u8, len: usize) -> i32 {
+    let mut res = 0;
+    for i in 0..len {
+        let diff =
+            i32::from(ptr::read_volatile(b1.add(i))) - i32::from(ptr::read_volatile(b2.add(i)));
+        res = (res & (((diff - 1) & !diff) >> 8)) | diff;
+    }
+    ((res - 1) >> 8) + (res >> 8) + 1
+}
+
 /// compares two slices of memory content and returns an integer indicating the relationship between
 /// the slices
 ///
@@ -20,5 +35,5 @@
 #[inline]
 pub fn compare(a: &[u8], b: &[u8]) -> i32 {
     assert!(a.len() == b.len());
-    unsafe { memsec::memcmp(a.as_ptr(), b.as_ptr(), a.len()) }
+    unsafe { memcmp_le(a.as_ptr(), b.as_ptr(), a.len()) }
 }
diff --git a/flake.lock b/flake.lock
index 6c2b1cc..de773f7 100644
--- a/flake.lock
+++ b/flake.lock
@@ -2,17 +2,15 @@
   "nodes": {
     "fenix": {
       "inputs": {
-        "nixpkgs": [
-          "nixpkgs"
-        ],
+        "nixpkgs": ["nixpkgs"],
         "rust-analyzer-src": "rust-analyzer-src"
       },
       "locked": {
-        "lastModified": 1699770036,
-        "narHash": "sha256-bZmI7ytPAYLpyFNgj5xirDkKuAniOkj1xHdv5aIJ5GM=",
+        "lastModified": 1712298178,
+        "narHash": "sha256-590fpCPXYAkaAeBz/V91GX4/KGzPObdYtqsTWzT6AhI=",
         "owner": "nix-community",
         "repo": "fenix",
-        "rev": "81ab0b4f7ae9ebb57daa0edf119c4891806e4d3a",
+        "rev": "569b5b5781395da08e7064e825953c548c26af76",
         "type": "github"
       },
       "original": {
@@ -26,11 +24,11 @@
         "systems": "systems"
       },
       "locked": {
-        "lastModified": 1694529238,
-        "narHash": "sha256-zsNZZGTGnMOf9YpHKJqMSsa0dXbfmxeoJ7xHlrt+xmY=",
+        "lastModified": 1710146030,
+        "narHash": "sha256-SZ5L6eA7HJ/nmkzGG7/ISclqe6oZdOZTNoesiInkXPQ=",
         "owner": "numtide",
         "repo": "flake-utils",
-        "rev": "ff7b65b44d01cf9ba6a71320833626af21126384",
+        "rev": "b1d9ab70662946ef0850d488da1c9019f3a9752a",
         "type": "github"
       },
       "original": {
@@ -41,9 +39,7 @@
     },
     "naersk": {
       "inputs": {
-        "nixpkgs": [
-          "nixpkgs"
-        ]
+        "nixpkgs": ["nixpkgs"]
       },
       "locked": {
         "lastModified": 1698420672,
@@ -61,16 +57,18 @@
     },
     "nixpkgs": {
       "locked": {
-        "lastModified": 1698846319,
-        "narHash": "sha256-4jyW/dqFBVpWFnhl0nvP6EN4lP7/ZqPxYRjl6var0Oc=",
+        "lastModified": 1712168706,
+        "narHash": "sha256-XP24tOobf6GGElMd0ux90FEBalUtw6NkBSVh/RlA6ik=",
         "owner": "NixOS",
         "repo": "nixpkgs",
-        "rev": "34bdaaf1f0b7fb6d9091472edc968ff10a8c2857",
+        "rev": "1487bdea619e4a7a53a4590c475deabb5a9d1bfb",
         "type": "github"
       },
       "original": {
-        "id": "nixpkgs",
-        "type": "indirect"
+        "owner": "NixOS",
+        "ref": "nixos-23.11",
+        "repo": "nixpkgs",
+        "type": "github"
       }
     },
     "root": {
@@ -84,11 +82,11 @@
     "rust-analyzer-src": {
       "flake": false,
       "locked": {
-        "lastModified": 1699715108,
-        "narHash": "sha256-yPozsobJU55gj+szgo4Lpcg1lHvGQYAT6Y4MrC80mWE=",
+        "lastModified": 1712156296,
+        "narHash": "sha256-St7ZQrkrr5lmQX9wC1ZJAFxL8W7alswnyZk9d1se3Us=",
         "owner": "rust-lang",
         "repo": "rust-analyzer",
-        "rev": "5fcf5289e726785d20d3aa4d13d90a43ed248e83",
+        "rev": "8e581ac348e223488622f4d3003cb2bd412bf27e",
         "type": "github"
       },
       "original": {
diff --git a/flake.nix b/flake.nix
index 332e9eb..b7fc705 100644
--- a/flake.nix
+++ b/flake.nix
@@ -1,5 +1,6 @@
 {
   inputs = {
+    nixpkgs.url = "github:NixOS/nixpkgs/nixos-23.11";
     flake-utils.url = "github:numtide/flake-utils";
 
     # for quicker rust builds
@@ -318,6 +319,7 @@
               cargo-release
               clippy
               nodePackages.prettier
+              nushell # for the .ci/gen-workflow-files.nu script
               rustfmt
               packages.proverif-patched
             ];
diff --git a/rosenpass/src/app_server.rs b/rosenpass/src/app_server.rs
index 317d52f..e8f98d0 100644
--- a/rosenpass/src/app_server.rs
+++ b/rosenpass/src/app_server.rs
@@ -4,7 +4,7 @@ use anyhow::Result;
 use log::{debug, error, info, warn};
 use mio::Interest;
 use mio::Token;
-use rosenpass_util::file::fopen_w;
+use rosenpass_util::file::{fopen_w, Visibility};
 
 use std::cell::Cell;
 use std::io::Write;
@@ -703,7 +703,7 @@ impl AppServer {
             // data will linger in the linux page cache anyways with the current
             // implementation, going to great length to erase the secret here is
             // not worth it right now.
-            b64_writer(fopen_w(of)?).write_all(key.secret())?;
+            b64_writer(fopen_w(of, Visibility::Secret)?).write_all(key.secret())?;
             let why = match why {
                 KeyOutputReason::Exchanged => "exchanged",
                 KeyOutputReason::Stale => "stale",
diff --git a/rosenpass/src/cli.rs b/rosenpass/src/cli.rs
index 1482cf1..c91e1e4 100644
--- a/rosenpass/src/cli.rs
+++ b/rosenpass/src/cli.rs
@@ -334,5 +334,5 @@ fn generate_and_save_keypair(secret_key: PathBuf, public_key: PathBuf) -> anyhow
     let mut spk = crate::protocol::SPk::random();
     StaticKem::keygen(ssk.secret_mut(), spk.secret_mut())?;
     ssk.store_secret(secret_key)?;
-    spk.store_secret(public_key)
+    spk.store(public_key)
 }
diff --git a/rosenpass/src/config.rs b/rosenpass/src/config.rs
index 084c021..c1ab416 100644
--- a/rosenpass/src/config.rs
+++ b/rosenpass/src/config.rs
@@ -16,7 +16,7 @@ use std::{
 };
 
 use anyhow::{bail, ensure};
-use rosenpass_util::file::fopen_w;
+use rosenpass_util::file::{fopen_w, Visibility};
 use serde::{Deserialize, Serialize};
 
 #[derive(Debug, Serialize, Deserialize)]
@@ -151,7 +151,7 @@ impl Rosenpass {
 
     /// Commit the configuration to where it came from, overwriting the original file
     pub fn commit(&self) -> anyhow::Result<()> {
-        let mut f = fopen_w(&self.config_file_path)?;
+        let mut f = fopen_w(&self.config_file_path, Visibility::Public)?;
         f.write_all(toml::to_string_pretty(&self)?.as_bytes())?;
 
         self.store(&self.config_file_path)
diff --git a/secret-memory/src/file.rs b/secret-memory/src/file.rs
index f67bb52..78d5f22 100644
--- a/secret-memory/src/file.rs
+++ b/secret-memory/src/file.rs
@@ -4,4 +4,5 @@ pub trait StoreSecret {
     type Error;
 
     fn store_secret<P: AsRef<Path>>(&self, path: P) -> Result<(), Self::Error>;
+    fn store<P: AsRef<Path>>(&self, path: P) -> Result<(), Self::Error>;
 }
diff --git a/secret-memory/src/secret.rs b/secret-memory/src/secret.rs
index 0b2d993..9643603 100644
--- a/secret-memory/src/secret.rs
+++ b/secret-memory/src/secret.rs
@@ -16,6 +16,8 @@ use rosenpass_util::functional::mutating;
 use crate::alloc::{secret_box, SecretBox, SecretVec};
 use crate::file::StoreSecret;
 
+use rosenpass_util::file::{fopen_w, Visibility};
+use std::io::Write;
 // This might become a problem in library usage; it's effectively a memory
 // leak which probably isn't a problem right now because most memory will
 // be reused…
@@ -272,7 +274,12 @@ impl<const N: usize> StoreSecret for Secret<N> {
     type Error = anyhow::Error;
 
     fn store_secret<P: AsRef<Path>>(&self, path: P) -> anyhow::Result<()> {
-        std::fs::write(path, self.secret())?;
+        fopen_w(path, Visibility::Secret)?.write_all(self.secret())?;
+        Ok(())
+    }
+
+    fn store<P: AsRef<Path>>(&self, path: P) -> anyhow::Result<()> {
+        fopen_w(path, Visibility::Public)?.write_all(self.secret())?;
         Ok(())
     }
 }
diff --git a/util/src/file.rs b/util/src/file.rs
index 48f8eb5..b523220 100644
--- a/util/src/file.rs
+++ b/util/src/file.rs
@@ -1,17 +1,24 @@
 use anyhow::ensure;
 use std::fs::File;
 use std::io::Read;
+use std::os::unix::fs::OpenOptionsExt;
 use std::result::Result;
 use std::{fs::OpenOptions, path::Path};
 
+pub enum Visibility {
+    Public,
+    Secret,
+}
+
 /// Open a file writable
-pub fn fopen_w<P: AsRef<Path>>(path: P) -> std::io::Result<File> {
-    OpenOptions::new()
-        .read(false)
-        .write(true)
-        .create(true)
-        .truncate(true)
-        .open(path)
+pub fn fopen_w<P: AsRef<Path>>(path: P, visibility: Visibility) -> std::io::Result<File> {
+    let mut options = OpenOptions::new();
+    options.create(true).write(true).read(false).truncate(true);
+    match visibility {
+        Visibility::Public => options.mode(0o644),
+        Visibility::Secret => options.mode(0o600),
+    };
+    options.open(path)
 }
 /// Open a file readable
 pub fn fopen_r<P: AsRef<Path>>(path: P) -> std::io::Result<File> {