diff --git a/.github/workflows/windows-release.yml b/.github/workflows/windows-release.yml
index 5945754..bd8a582 100644
--- a/.github/workflows/windows-release.yml
+++ b/.github/workflows/windows-release.yml
@@ -44,21 +44,6 @@ jobs:
       - name: Cache cargo build
         uses: Swatinem/rust-cache@v2
 
-      - name: Cache vcpkg installed packages
-        uses: actions/cache@v4
-        with:
-          path: C:\vcpkg\installed
-          key: vcpkg-openssl-x64-windows-v1
-
-      - name: Install OpenSSL (x64) via vcpkg
-        shell: pwsh
-        run: |
-          # windows-latest ships vcpkg preinstalled; the install is a no-op when the
-          # package is restored from cache.
-          & "$env:VCPKG_INSTALLATION_ROOT\vcpkg.exe" install openssl:x64-windows
-          'VCPKG_ROOT=C:\vcpkg' | Out-File -FilePath $env:GITHUB_ENV -Encoding utf8 -Append
-          'OPENSSL_DIR=C:\vcpkg\installed\x64-windows' | Out-File -FilePath $env:GITHUB_ENV -Encoding utf8 -Append
-
       - name: Build (cargo release)
         shell: pwsh
         run: cargo build --release --bin app
diff --git a/Cargo.lock b/Cargo.lock
index 3f4be7c..003a938 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -1777,21 +1777,6 @@ version = "0.2.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "77ce24cb58228fbb8aa041425bb1050850ac19177686ea6e0f41a70416f56fdb"
 
-[[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 = "1.2.2"
@@ -3433,31 +3418,6 @@ dependencies = [
  "portable-atomic",
 ]
 
-[[package]]
-name = "openssl"
-version = "0.10.81"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "77823a27f0babb03091cb9ed9ef80af3b39dbc82f97e8fa530374b7dafd87a45"
-dependencies = [
- "bitflags 2.13.2",
- "cfg-if",
- "foreign-types",
- "libc",
- "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 2.0.119",
-]
-
 [[package]]
 name = "openssl-probe"
 version = "0.1.6"
@@ -3470,18 +3430,6 @@ version = "0.2.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "7c87def4c32ab89d880effc9e097653c8da5d6ef28e6b539d313baaacfbafcbe"
 
-[[package]]
-name = "openssl-sys"
-version = "0.9.117"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "b47e7e6bb2c38cd930d25a23b40fa52e068c10e85f3e03a7f5ba5aaca5713695"
-dependencies = [
- "cc",
- "libc",
- "pkg-config",
- "vcpkg",
-]
-
 [[package]]
 name = "opentelemetry"
 version = "0.32.0"
@@ -3719,13 +3667,13 @@ dependencies = [
  "google-cloud-auth",
  "google-cloud-storage",
  "hex",
+ "hmac 0.12.1",
  "hyper 1.11.1",
  "log",
  "mockall",
  "mongodb",
  "oauth2",
  "once_cell",
- "openssl",
  "percent-encoding",
  "postgres",
  "rand 0.9.5",
@@ -3733,6 +3681,7 @@ dependencies = [
  "reqwest 0.13.5",
  "serde",
  "serde_json",
+ "sha2 0.10.9",
  "tar",
  "tempfile",
  "testcontainers",
@@ -5818,12 +5767,6 @@ version = "0.1.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "ba73ea9cf16a25df0c8caa16c51acb937d5712a8429db78a3ee29d5dcacd3a65"
 
-[[package]]
-name = "vcpkg"
-version = "0.2.15"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "accd4ea62f7bb7a82fe23066fb0957d48ef677f6eeb8215f372f52e48bb32426"
-
 [[package]]
 name = "version_check"
 version = "0.9.5"
diff --git a/Cargo.toml b/Cargo.toml
index bbd68ff..13d36b3 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -22,7 +22,8 @@ anyhow = "1.0.100"
 tokio = { version = "1.49.0", features = ["rt", "rt-multi-thread", "macros", "fs", "process", "io-util"] }
 async-trait = "0.1.89"
 tempfile = "3.24.0"
-openssl = "0.10.75"
+hmac = "0.12"
+sha2 = "0.10"
 hex = "0.4.3"
 flate2 = "1.1.5"
 tar = "0.4.44"
diff --git a/docker-compose.yml b/docker-compose.yml
index 7ef5c4f..699ed22 100644
--- a/docker-compose.yml
+++ b/docker-compose.yml
@@ -12,17 +12,17 @@ services:
       - ./databases.json:/config/config.json
       #- ./databases.toml:/config/config.toml
       - /var/run/docker.sock:/var/run/docker.sock
-      #      - cargo-target:/app/target
+#      - cargo-target:/app/target
       - databases_sqlite-data:/sqlite-data/workspace/data
       - ./scripts/sqlite/test-db:/sqlite-data-2/workspace/data
-    #      - /bigdisk:/scratch
+#      - /bigdisk:/scratch
     environment:
       APP_ENV: development
       LOG: debug
       TZ: "Europe/Paris"
-      #      TMPDIR: /scratch
-      EDGE_KEY: "eyJzZXJ2ZXJVcmwiOiJodHRwOi8vbG9jYWxob3N0Ojg4ODciLCJhZ2VudElkIjoiNmQ1YTdjNDctZDhjMS00ZjFlLTlhYWEtODkzNzBkMGZjZGVhIiwibWFzdGVyS2V5QjY0IjoiQlhWM1hvbEM2NTZTVjdkTmdjV1BHUWxrKytycExJNmxHRGk3Q1BCNWllbz0ifQ=="
-#      CHUNK_SIZE_MB: "1"
+#      TMPDIR: /scratch
+      EDGE_KEY: "eyJzZXJ2ZXJVcmwiOiJodHRwOi8vbG9jYWxob3N0Ojg4ODciLCJhZ2VudElkIjoiYTQyNjQzNTQtZGE3Ni00OWFkLWJkYjctZDVjMjMwYzhjYmViIiwibWFzdGVyS2V5QjY0IjoiQlhWM1hvbEM2NTZTVjdkTmdjV1BHUWxrKytycExJNmxHRGk3Q1BCNWllbz0ifQ=="
+      #CHUNK_SIZE_MB: "1"
       #POOLING: 1
       #RETRY_ATTEMPTS: 3
       #RETRY_BACKOFF_MS: 1000
@@ -40,7 +40,7 @@ services:
 volumes:
   cargo-registry:
   cargo-git:
-  #  cargo-target:
+#  cargo-target:
   databases_sqlite-data:
     external: true
 
diff --git a/src/services/storage/providers/azure_blob/helpers.rs b/src/services/storage/providers/azure_blob/helpers.rs
index ab6551e..d4a8da1 100644
--- a/src/services/storage/providers/azure_blob/helpers.rs
+++ b/src/services/storage/providers/azure_blob/helpers.rs
@@ -2,9 +2,8 @@ use anyhow::{Context as _, Result, anyhow};
 use base64::Engine;
 use base64::engine::general_purpose::STANDARD;
 use chrono::{Duration, Utc};
-use openssl::hash::MessageDigest;
-use openssl::pkey::PKey;
-use openssl::sign::Signer;
+use hmac::{Hmac, Mac};
+use sha2::Sha256;
 use url::Url;
 use azure_core::http::RequestContent;
 use azure_storage_blob::clients::{BlobClient, BlockBlobClient};
@@ -36,12 +35,12 @@ impl SasResource {
 
 pub(crate) const SAS_VERSION: &str = "2022-11-02";
 
+type HmacSha256 = Hmac<Sha256>;
+
 pub(crate) fn hmac_sha256_b64(key: &[u8], data: &str) -> Result<String> {
-    let pkey = PKey::hmac(key).context("hmac key")?;
-    let mut signer = Signer::new(MessageDigest::sha256(), &pkey).context("signer")?;
-    signer.update(data.as_bytes()).context("signer update")?;
-    let sig = signer.sign_to_vec().context("sign")?;
-    Ok(STANDARD.encode(sig))
+    let mut mac = HmacSha256::new_from_slice(key).context("hmac key")?;
+    mac.update(data.as_bytes());
+    Ok(STANDARD.encode(mac.finalize().into_bytes()))
 }
 
 pub fn build_service_sas(