fix formatting

src/ctap/crypto_wrapper.rs

@@ -12,12 +12,12 @@
 // See the License for the specific language governing permissions and
 // limitations under the License.
 
+#[cfg(feature = "ed25519")]
+use crate::ctap::data_formats::EDDSA_ALGORITHM;
 use crate::ctap::data_formats::{
     extract_array, extract_byte_string, CoseKey, PublicKeyCredentialSource,
     PublicKeyCredentialType, SignatureAlgorithm, ES256_ALGORITHM,
 };
-#[cfg(feature="ed25519")]
-use crate::ctap::data_formats::EDDSA_ALGORITHM;
 use crate::ctap::status_code::Ctap2StatusCode;
 use crate::ctap::storage;
 use crate::env::Env;
@@ -97,7 +97,7 @@ pub fn aes256_cbc_decrypt(
 }
 
 /// An asymmetric private key that can sign messages.
-#[derive(Clone,Debug,PartialEq,Eq)]
+#[derive(Clone, Debug, PartialEq, Eq)]
 pub enum PrivateKey {
     Ecdsa(ecdsa::SecKey),
     #[cfg(feature = "ed25519")]
@@ -117,7 +117,7 @@ impl PrivateKey {
             SignatureAlgorithm::EDDSA => {
                 let bytes = rng.gen_uniform_u8x32();
                 Self::new_ed25519_from_bytes(&bytes).unwrap()
-            },
+            }
             SignatureAlgorithm::Unknown => unreachable!(),
         }
     }
@@ -155,7 +155,7 @@ impl PrivateKey {
         match self {
             PrivateKey::Ecdsa(ecdsa_key) => ecdsa_key.sign_rfc6979::<Sha256>(message).to_asn1_der(),
             #[cfg(feature = "ed25519")]
-            PrivateKey::Ed25519(ed25519_key) => ed25519_key.sign(message,None).to_vec(),
+            PrivateKey::Ed25519(ed25519_key) => ed25519_key.sign(message, None).to_vec(),
         }
     }
 

src/ctap/data_formats.rs

@@ -896,7 +896,10 @@ impl TryFrom<CoseKey> for ecdsa::PubKey {
             curve,
         } = cose_key;
 
-        if algorithm != ES256_ALGORITHM || key_type != CoseKey::EC2_KEY_TYPE || curve != CoseKey::P_256_CURVE {
+        if algorithm != ES256_ALGORITHM
+            || key_type != CoseKey::EC2_KEY_TYPE
+            || curve != CoseKey::P_256_CURVE
+        {
             return Err(Ctap2StatusCode::CTAP2_ERR_UNSUPPORTED_ALGORITHM);
         }
         ecdsa::PubKey::from_coordinates(&x_bytes, &y_bytes)
@@ -945,10 +948,8 @@ impl TryFrom<CoseSignature> for ecdsa::Signature {
             SignatureAlgorithm::ES256 => ecdsa::Signature::from_bytes(&cose_signature.bytes)
                 .ok_or(Ctap2StatusCode::CTAP1_ERR_INVALID_PARAMETER),
             #[cfg(feature = "ed25519")]
-            SignatureAlgorithm::EDDSA =>
-                Err(Ctap2StatusCode::CTAP2_ERR_UNSUPPORTED_ALGORITHM),
-            SignatureAlgorithm::Unknown =>
-                Err(Ctap2StatusCode::CTAP2_ERR_UNSUPPORTED_ALGORITHM),
+            SignatureAlgorithm::EDDSA => Err(Ctap2StatusCode::CTAP2_ERR_UNSUPPORTED_ALGORITHM),
+            SignatureAlgorithm::Unknown => Err(Ctap2StatusCode::CTAP2_ERR_UNSUPPORTED_ALGORITHM),
         }
     }
 }
@@ -1632,7 +1633,8 @@ mod test {
         #[cfg(feature = "ed25519")]
         {
             let cbor_signature_algorithm: cbor::Value = cbor_int!(EDDSA_ALGORITHM);
-            let signature_algorithm = SignatureAlgorithm::try_from(cbor_signature_algorithm.clone());
+            let signature_algorithm =
+                SignatureAlgorithm::try_from(cbor_signature_algorithm.clone());
             let expected_signature_algorithm = SignatureAlgorithm::EDDSA;
             assert_eq!(signature_algorithm, Ok(expected_signature_algorithm));
             let created_cbor: cbor::Value = signature_algorithm.unwrap().into();
@@ -1702,7 +1704,10 @@ mod test {
         }
     }
 
-    fn test_from_into_public_key_credential_parameter(alg_int: i64, signature_algorithm: SignatureAlgorithm) {
+    fn test_from_into_public_key_credential_parameter(
+        alg_int: i64,
+        signature_algorithm: SignatureAlgorithm,
+    ) {
         let cbor_credential_parameter = cbor_map! {
             "alg" => alg_int,
             "type" => "public-key",

src/ctap/mod.rs

@@ -125,12 +125,16 @@ pub const EDDSA_CRED_PARAM: PublicKeyCredentialParameter = PublicKeyCredentialPa
 
 const SUPPORTED_CRED_PARAMS: &[PublicKeyCredentialParameter] = &[
     ES256_CRED_PARAM,
-#[cfg(feature = "ed25519")]
+    #[cfg(feature = "ed25519")]
     EDDSA_CRED_PARAM,
 ];
 
-fn get_preferred_cred_param (params: &[PublicKeyCredentialParameter]) -> Option<&PublicKeyCredentialParameter> {
-    params.iter().find(|&param| SUPPORTED_CRED_PARAMS.contains(param))
+fn get_preferred_cred_param(
+    params: &[PublicKeyCredentialParameter],
+) -> Option<&PublicKeyCredentialParameter> {
+    params
+        .iter()
+        .find(|&param| SUPPORTED_CRED_PARAMS.contains(param))
 }
 
 /// Transports supported by OpenSK.