feat: fix clippy

src/cmd_pivrsasign.rs

@@ -35,7 +35,7 @@ impl Command for CommandImpl {
 
         if let Some(sha256_hex) = sha256_hex_opt {
             let sha256 = opt_result!(hex::decode(sha256_hex), "Decode sha256 failed: {}");
-            let raw_in = rsautil::pkcs15_rsa_2048_sign_padding(&sha256);
+            let raw_in = rsautil::pkcs15_sha256_rsa_2048_padding_for_sign(&sha256);
             let sign_result = piv::sign_data(&mut yk, &raw_in, AlgorithmId::Rsa2048, SlotId::Signature);
             let sign = opt_result!(sign_result, "Sign data failed: {}");
             let sign_bytes = sign.as_slice();

src/cmd_pivverify.rs

@@ -99,7 +99,7 @@ fn find_key(slot_id: &SlotId) -> XResult<Option<Key>> {
         Err(e) => warning!("List keys failed: {}", e),
         Ok(keys) => for k in keys {
             let slot_str = format!("{:x}", Into::<u8>::into(k.slot()));
-            if slot_equals(&slot_id, &slot_str) {
+            if slot_equals(slot_id, &slot_str) {
                 return Ok(Some(k));
             }
         },

src/cmd_signjwt.rs

@@ -66,9 +66,7 @@ impl Command for CommandImpl {
 
         let token_string = sign_jwt(slot, &pin_opt, header, &payload, &jwt_claims)?;
         success!("Singed JWT: {}", token_string);
-        if json_output {
-            json.insert("token", token_string.clone());
-        }
+        if json_output { json.insert("token", token_string.clone()); }
 
         if json_output {
             println!("{}", serde_json::to_string_pretty(&json).unwrap());
@@ -114,7 +112,8 @@ fn sign_jwt(slot: &str, pin_opt: &Option<&str>, mut header: Header, payload: &Op
     tobe_signed.extend_from_slice(SEPARATOR.as_bytes());
     tobe_signed.extend_from_slice(claims.as_bytes());
     let raw_in = match jwt_algorithm {
-        AlgorithmType::Rs256 => rsautil::pkcs15_rsa_2048_sign_padding(&digest::sha256_bytes(&tobe_signed)),
+        AlgorithmType::Rs256 => rsautil::pkcs15_sha256_rsa_2048_padding_for_sign(
+            &digest::sha256_bytes(&tobe_signed)),
         AlgorithmType::Es256 => digest::sha256_bytes(&tobe_signed),
         AlgorithmType::Es384 => digest::sha384_bytes(&tobe_signed),
         _ => return simple_error!("SHOULD NOT HAPPEN: {:?}", jwt_algorithm),

src/hmacutil.rs

@@ -19,15 +19,14 @@ pub fn get_challenge_bytes(sub_arg_matches: &ArgMatches) -> XResult<Vec<u8>> {
     Ok(challenge_bytes)
 }
 
-pub fn calculate_hmac_sha1_result(secret_bytes: &Vec<u8>, challenge_bytes: &Vec<u8>, variable: bool) -> [u8; 20] {
-    let hmac_key = HmacKey::from_slice(&secret_bytes);
+pub fn calculate_hmac_sha1_result(secret_bytes: &[u8], challenge_bytes: &[u8], variable: bool) -> [u8; 20] {
+    let hmac_key = HmacKey::from_slice(secret_bytes);
     let mut challenge = [0; 64];
     if variable && challenge_bytes.last() == Some(&0) {
         challenge = [0xff; 64];
     }
-    (&mut challenge[..challenge_bytes.len()]).copy_from_slice(&challenge_bytes);
-    let hmac_result = hmac_sha1(&hmac_key, &challenge);
-    hmac_result
+    challenge[..challenge_bytes.len()].copy_from_slice(challenge_bytes);
+    hmac_sha1(&hmac_key, &challenge)
 }
 
 

src/rsautil.rs

@@ -114,7 +114,7 @@ fn inner_from(p: BigNum, q: BigNum, e: BigNum) -> XResult<RsaCrt> {
     })
 }
 
-pub fn pkcs15_rsa_2048_sign_padding(sha256: &[u8]) -> Vec<u8> {
+pub fn pkcs15_sha256_rsa_2048_padding_for_sign(sha256: &[u8]) -> Vec<u8> {
     // https://www.ibm.com/docs/en/zos/2.2.0?topic=cryptography-pkcs-1-formats
     // MD5  X’3020300C 06082A86 4886F70D 02050500 0410’ || 16-byte hash value
     // SHA-1  X'30213009 06052B0E 03021A05 000414’ || 20-byte hash value
@@ -126,10 +126,10 @@ pub fn pkcs15_rsa_2048_sign_padding(sha256: &[u8]) -> Vec<u8> {
 
     let mut hash_with_oid = Vec::with_capacity(128);
     hash_with_oid.extend_from_slice(&sha256_der_prefix);
-    hash_with_oid.extend_from_slice(&sha256);
+    hash_with_oid.extend_from_slice(sha256);
     let hash_padding = pkcs1_padding_for_sign(&hash_with_oid, 2048).unwrap();
     util_msg::when(MessageType::DEBUG, || {
-        debugging!("Hash: {}", hex::encode(&sha256));
+        debugging!("Hash: {}", hex::encode(sha256));
         debugging!("Hash with OID: {}", hex::encode(&hash_with_oid));
         debugging!("PKCS1 padding: {}", hex::encode(&hash_padding));
     });