Add msrv definitions to common and crypto

This will effectively add msrv protections to the entire project as almost
everything grabs from these.

Doesn't add msrv to coins as coins/bitcoin is still frozen.

Doesn't add msrv to services since cargo msrv doesn't play nice with anything
importing the runtime.

common/db/Cargo.toml

@@ -7,6 +7,7 @@ repository = "https://github.com/serai-dex/serai/tree/develop/common/db"
 authors = ["Luke Parker <lukeparker5132@gmail.com>"]
 keywords = []
 edition = "2021"
+rust-version = "1.65"
 
 [package.metadata.docs.rs]
 all-features = true

common/env/Cargo.toml

@@ -7,6 +7,7 @@ repository = "https://github.com/serai-dex/serai/tree/develop/common/env"
 authors = ["Luke Parker <lukeparker5132@gmail.com>"]
 keywords = []
 edition = "2021"
+rust-version = "1.60"
 
 [package.metadata.docs.rs]
 all-features = true

common/std-shims/Cargo.toml

@@ -7,6 +7,7 @@ repository = "https://github.com/serai-dex/serai/tree/develop/common/std-shims"
 authors = ["Luke Parker <lukeparker5132@gmail.com>"]
 keywords = ["nostd", "no_std", "alloc", "io"]
 edition = "2021"
+rust-version = "1.70"
 
 [package.metadata.docs.rs]
 all-features = true

common/zalloc/Cargo.toml

@@ -7,6 +7,7 @@ repository = "https://github.com/serai-dex/serai/tree/develop/common/zalloc"
 authors = ["Luke Parker <lukeparker5132@gmail.com>"]
 keywords = []
 edition = "2021"
+rust-version = "1.60"
 
 [package.metadata.docs.rs]
 all-features = true

crypto/ciphersuite/Cargo.toml

@@ -7,6 +7,7 @@ repository = "https://github.com/serai-dex/serai/tree/develop/crypto/ciphersuite
 authors = ["Luke Parker <lukeparker5132@gmail.com>"]
 keywords = ["ciphersuite", "ff", "group"]
 edition = "2021"
+rust-version = "1.70"
 
 [package.metadata.docs.rs]
 all-features = true

crypto/dalek-ff-group/Cargo.toml

@@ -7,6 +7,7 @@ repository = "https://github.com/serai-dex/serai/tree/develop/crypto/dalek-ff-gr
 authors = ["Luke Parker <lukeparker5132@gmail.com>"]
 keywords = ["curve25519", "ed25519", "ristretto", "dalek", "group"]
 edition = "2021"
+rust-version = "1.65"
 
 [package.metadata.docs.rs]
 all-features = true

crypto/dkg/Cargo.toml

@@ -7,6 +7,7 @@ repository = "https://github.com/serai-dex/serai/tree/develop/crypto/dkg"
 authors = ["Luke Parker <lukeparker5132@gmail.com>"]
 keywords = ["dkg", "multisig", "threshold", "ff", "group"]
 edition = "2021"
+rust-version = "1.70"
 
 [package.metadata.docs.rs]
 all-features = true

crypto/dleq/Cargo.toml

@@ -6,6 +6,7 @@ license = "MIT"
 repository = "https://github.com/serai-dex/serai/tree/develop/crypto/dleq"
 authors = ["Luke Parker <lukeparker5132@gmail.com>"]
 edition = "2021"
+rust-version = "1.66"
 
 [package.metadata.docs.rs]
 all-features = true

crypto/ed448/Cargo.toml

@@ -7,6 +7,7 @@ repository = "https://github.com/serai-dex/serai/tree/develop/crypto/ed448"
 authors = ["Luke Parker <lukeparker5132@gmail.com>"]
 keywords = ["ed448", "ff", "group"]
 edition = "2021"
+rust-version = "1.65"
 
 [package.metadata.docs.rs]
 all-features = true

crypto/ed448/src/scalar.rs

@@ -54,7 +54,9 @@ field!(
 impl Scalar {
   /// Perform a wide reduction to obtain a non-biased Scalar.
   pub fn wide_reduce(bytes: [u8; 114]) -> Scalar {
-    let wide = U1024::from_le_slice(&[bytes.as_ref(), &[0; 14]].concat());
+    let mut bytes_128 = [0; 128];
+    bytes_128[.. 114].copy_from_slice(&bytes);
+    let wide = U1024::from_le_slice(&bytes_128);
     Scalar(Residue::new(&U448::from_le_slice(
       &wide.rem(&WIDE_REDUCTION_MODULUS).to_le_bytes()[.. 56],
     )))

crypto/ff-group-tests/Cargo.toml

@@ -7,6 +7,7 @@ repository = "https://github.com/serai-dex/serai/tree/develop/crypto/ff-group-te
 authors = ["Luke Parker <lukeparker5132@gmail.com>"]
 keywords = ["ff", "group", "ecc"]
 edition = "2021"
+rust-version = "1.60"
 
 [package.metadata.docs.rs]
 all-features = true
@@ -17,6 +18,7 @@ rand_core = "0.6"
 
 subtle = "^2.4"
 
+ff = { version = "0.13", features = ["bits"] }
 group = "0.13"
 
 [dev-dependencies]

crypto/frost/Cargo.toml

@@ -7,6 +7,7 @@ repository = "https://github.com/serai-dex/serai/tree/develop/crypto/frost"
 authors = ["Luke Parker <lukeparker5132@gmail.com>"]
 keywords = ["frost", "multisig", "threshold"]
 edition = "2021"
+rust-version = "1.70"
 
 [package.metadata.docs.rs]
 all-features = true

crypto/multiexp/Cargo.toml

@@ -7,6 +7,7 @@ repository = "https://github.com/serai-dex/serai/tree/develop/crypto/multiexp"
 authors = ["Luke Parker <lukeparker5132@gmail.com>"]
 keywords = ["multiexp", "ff", "group"]
 edition = "2021"
+rust-version = "1.70"
 
 [package.metadata.docs.rs]
 all-features = true
@@ -31,7 +32,7 @@ k256 = { version = "^0.13.1", default-features = false, features = ["arithmetic"
 dalek-ff-group = { path = "../dalek-ff-group" }
 
 [features]
-std = ["std-shims/std"]
+std = ["std-shims/std", "zeroize/std"]
 
 batch = ["rand_core"]
 

crypto/schnorr/Cargo.toml

@@ -7,6 +7,7 @@ repository = "https://github.com/serai-dex/serai/tree/develop/crypto/schnorr"
 authors = ["Luke Parker <lukeparker5132@gmail.com>"]
 keywords = ["schnorr", "ff", "group"]
 edition = "2021"
+rust-version = "1.70"
 
 [package.metadata.docs.rs]
 all-features = true

crypto/schnorrkel/Cargo.toml

@@ -7,6 +7,7 @@ repository = "https://github.com/serai-dex/serai/tree/develop/crypto/schnorrkel"
 authors = ["Luke Parker <lukeparker5132@gmail.com>"]
 keywords = ["frost", "multisig", "threshold", "schnorrkel"]
 edition = "2021"
+rust-version = "1.70"
 
 [package.metadata.docs.rs]
 all-features = true

crypto/transcript/Cargo.toml

@@ -7,6 +7,7 @@ repository = "https://github.com/serai-dex/serai/tree/develop/crypto/transcript"
 authors = ["Luke Parker <lukeparker5132@gmail.com>"]
 keywords = ["transcript"]
 edition = "2021"
+rust-version = "1.66"
 
 [package.metadata.docs.rs]
 all-features = true