build(deps): bump base64 from 0.20.0 to 0.21.0

Bumps [base64](https://github.com/marshallpierce/rust-base64) from 0.20.0 to 0.21.0.
- [Release notes](https://github.com/marshallpierce/rust-base64/releases)
- [Changelog](https://github.com/marshallpierce/rust-base64/blob/master/RELEASE-NOTES.md)
- [Commits](https://github.com/marshallpierce/rust-base64/compare/v0.20.0...v0.21.0)

---
updated-dependencies:
- dependency-name: base64
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

Signed-off-by: dependabot[bot] <support@github.com>

Cargo.lock

@@ -108,12 +108,6 @@ version = "0.13.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "9e1b586273c5702936fe7b7d6896644d8be71e6314cfe09d3167c95f712589e8"
 
-[[package]]
-name = "base64"
-version = "0.20.0"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "0ea22880d78093b0cbe17c89f64a7d457941e65759157ec6cb31a31d652b05e5"
-
 [[package]]
 name = "base64"
 version = "0.21.0"
@@ -1719,7 +1713,7 @@ dependencies = [
  "aho-corasick",
  "anyhow",
  "backoff",
- "base64 0.20.0",
+ "base64 0.21.0",
  "binrw",
  "bytes",
  "bytesize",

Cargo.toml

@@ -42,7 +42,7 @@ scrypt = { version = "0.10", default-features = false }
 # cdc = "0.1"
 integer-sqrt = "0.1"
 # serialization
-base64 = "0.20"
+base64 = "0.21"
 binrw = "0.11"
 hex = { version = "0.4", features = ["serde"] }
 serde = { version = "1", features = ["derive"] }

src/repofile/keyfile.rs

@@ -1,4 +1,5 @@
 use anyhow::{anyhow, Result};
+use base64::{engine::general_purpose::STANDARD, Engine as _};
 use chrono::{DateTime, Local};
 use rand::{thread_rng, RngCore};
 use scrypt::Params;
@@ -28,7 +29,7 @@ impl KeyFile {
     fn kdf_key(&self, passwd: &impl AsRef<[u8]>) -> Result<Key> {
         let params = Params::new(log_2(self.n), self.r, self.p)
             .map_err(|_| anyhow!("invalid scrypt paramters"))?;
-        let salt = base64::decode(&self.salt)?;
+        let salt = STANDARD.decode(&self.salt)?;
 
         let mut key = [0; 64];
         scrypt::scrypt(passwd.as_ref(), &salt, &params, &mut key).expect("output length invalid?");
@@ -40,7 +41,7 @@ impl KeyFile {
     /// The key usually should be the key generated by [`kdf_key()`](Self::kdf_key)
     fn key_from_data(&self, key: &Key) -> Result<Key> {
         let dec_data = key
-            .decrypt_data(&base64::decode(&self.data)?)
+            .decrypt_data(&STANDARD.decode(&self.data)?)
             .map_err(|_| anyhow!("decryption failed"))?;
         serde_json::from_slice::<MasterKey>(&dec_data)?.key()
     }
@@ -78,8 +79,8 @@ impl KeyFile {
             r: params.r(),
             p: params.p(),
             created: with_created.then(Local::now),
-            data: base64::encode(data),
-            salt: base64::encode(salt),
+            data: STANDARD.encode(data),
+            salt: STANDARD.encode(salt),
         })
     }
 }
@@ -117,19 +118,19 @@ impl MasterKey {
     fn from_key(key: Key) -> Self {
         let (encrypt, k, r) = key.to_keys();
         Self {
-            encrypt: base64::encode(encrypt),
+            encrypt: STANDARD.encode(encrypt),
             mac: Mac {
-                k: base64::encode(k),
-                r: base64::encode(r),
+                k: STANDARD.encode(k),
+                r: STANDARD.encode(r),
             },
         }
     }
 
     fn key(&self) -> Result<Key> {
         Ok(Key::from_keys(
-            &base64::decode(&self.encrypt)?,
-            &base64::decode(&self.mac.k)?,
-            &base64::decode(&self.mac.r)?,
+            &STANDARD.decode(&self.encrypt)?,
+            &STANDARD.decode(&self.mac.k)?,
+            &STANDARD.decode(&self.mac.r)?,
         ))
     }
 }