4 files changed, 35 insertions, 1 deletions
diff --git a/mullvad-update/src/client/api.rs b/mullvad-update/src/client/api.rs
index 7811dee275..05c8359449 100644
--- a/mullvad-update/src/client/api.rs
+++ b/mullvad-update/src/client/api.rs
@@ -35,6 +35,18 @@ impl HttpVersionInfoProvider {
     /// Maximum size of the GET response, in bytes
     const SIZE_LIMIT: usize = 1024 * 1024;
 
+    /// Construct an [HttpVersionInfoProvider] for `url` using reasonable defaults.
+    ///
+    /// By default, `pinned_certificate` will be set to the LE root certificate, and
+    /// `verifying_keys` will be set to the keys in `trusted-metadata-signing-keys`.
+    pub fn new(url: String) -> Self {
+        HttpVersionInfoProvider {
+            url,
+            pinned_certificate: Some(crate::keys::PINNED_CERTIFICATE.clone()),
+            verifying_keys: crate::keys::TRUSTED_METADATA_SIGNING_PUBKEYS.clone(),
+        }
+    }
+
     /// Download and verify signed data
     pub async fn get_versions(
         &self,
diff --git a/mullvad-update/src/format/deserializer.rs b/mullvad-update/src/format/deserializer.rs
index 980fd52ca6..8b138578b5 100644
--- a/mullvad-update/src/format/deserializer.rs
+++ b/mullvad-update/src/format/deserializer.rs
@@ -10,6 +10,21 @@ use super::{PartialSignedResponse, ResponseSignature, SignedResponse};
 impl SignedResponse {
     /// Deserialize some bytes to JSON, and verify them, including signature and expiry.
     /// If successful, the deserialized data is returned.
+    ///
+    /// This uses the keys in `trusted-metadata-signing-pubkeys`
+    pub fn deserialize_and_verify(
+        bytes: &[u8],
+        min_metadata_version: usize,
+    ) -> Result<Self, anyhow::Error> {
+        Self::deserialize_and_verify_with_keys(
+            &crate::keys::TRUSTED_METADATA_SIGNING_PUBKEYS,
+            bytes,
+            min_metadata_version,
+        )
+    }
+
+    /// Deserialize some bytes to JSON, and verify them, including signature and expiry.
+    /// If successful, the deserialized data is returned.
     pub fn deserialize_and_verify_with_keys(
         keys: &Vec1<VerifyingKey>,
         bytes: &[u8],
diff --git a/mullvad-update/src/keys.rs b/mullvad-update/src/keys.rs
index 9b0abf5c6b..73ca8519d0 100644
--- a/mullvad-update/src/keys.rs
+++ b/mullvad-update/src/keys.rs
@@ -4,6 +4,12 @@ use crate::format::key::VerifyingKey;
 use std::sync::LazyLock;
 use vec1::Vec1;
 
+/// Default TLS certificate to pin to
+pub static PINNED_CERTIFICATE: LazyLock<reqwest::Certificate> = LazyLock::new(|| {
+    const CERT_BYTES: &[u8] = include_bytes!("../../mullvad-api/le_root_cert.pem");
+    reqwest::Certificate::from_pem(CERT_BYTES).expect("invalid cert")
+});
+
 /// Pubkeys used to verify metadata from the Mullvad API (production)
 pub static TRUSTED_METADATA_SIGNING_PUBKEYS: LazyLock<Vec1<VerifyingKey>> =
     LazyLock::new(|| parse_keys(include_str!("../trusted-metadata-signing-pubkeys")));
diff --git a/mullvad-update/src/lib.rs b/mullvad-update/src/lib.rs
index 88e78034a7..eb9877f62f 100644
--- a/mullvad-update/src/lib.rs
+++ b/mullvad-update/src/lib.rs
@@ -6,7 +6,8 @@ mod client;
 #[cfg(feature = "client")]
 pub use client::*;
 
-pub mod keys;
+#[cfg(feature = "client")]
+mod keys;
 
 pub mod version;