do not creep in std

Author: drskalman

Cargo.toml

@@ -6,7 +6,7 @@ homepage = "https://github.com/w3f/bls"
 license = "MIT/Apache-2.0"
 name = "w3f-bls"
 repository = "https://github.com/w3f/bls"
-version = "0.1.8"
+version = "0.1.9"
 edition = "2018"
 
 [dependencies]
@@ -27,9 +27,6 @@ ark-bls12-381 = { version = "0.4.0", default-features = false, features = [ "cur
 ark-bls12-377 = { version = "0.4.0", default-features = false, features = [ "curve" ] }
 
 zeroize = { version = "1.0", default-features = false, features = [ "zeroize_derive" ] }
-serde = { version = "1.0", default-features = false, optional = true }
-thiserror = { version = "1.0", default-features = false }
-constcat = "0.3.0"
 
 [dev-dependencies]
 hex-literal = "0.3.4"
@@ -38,12 +35,3 @@ hex-literal = "0.3.4"
 default = ["std"]
 std = ["rand/std"]
 experimental = []
-
-[patch.crates-io]
-# ark-ec = { git = "https://github.com/w3f/arkworks-algebra", branch = 'master'}
-# ark-ff = { git = "https://github.com/w3f/arkworks-algebra", branch = 'master'}
-# ark-serialize = { git = "https://github.com/w3f/arkworks-algebra", branch = 'master'}
-# ark-serialize-derive = { git = "https://github.com/w3f/arkworks-algebra", branch = 'master'}
-# ark-bls12-381 = { git = "https://github.com/w3f/arkworks-curves", branch = 'skalman-bls12-377-wb-hash2curve'}
-# ark-bls12-377 = { git = "https://github.com/w3f/arkworks-curves", branch = 'skalman-bls12-377-wb-hash2curve'}
-# ark-std = { git = "https://github.com/arkworks-rs/std"}

src/double_pop.rs

@@ -61,13 +61,17 @@ impl<E: EngineBLS, H: DynDigest + Default + Clone> ProofOfPossession<E, H, Doubl
             Message::new_pop_message(b"", &public_key_as_bytes).hash_to_signature_curve::<E>();
         let public_key_hashed_to_signature_group_as_bytes =
             E::signature_point_to_byte(&public_key_hashed_to_signature_group);
-        let random_oracle_seed = [
-            public_key_hashed_to_signature_group_as_bytes,
-            public_key_as_bytes,
-            public_key_in_signature_group_as_bytes,
-            E::signature_point_to_byte(&self.0),
-        ]
-        .concat();
+        let mut random_oracle_seed = Vec::with_capacity(
+            public_key_hashed_to_signature_group_as_bytes.len()
+                + public_key_as_bytes.len()
+                + public_key_in_signature_group_as_bytes.len()
+                + E::SIGNATURE_SERIALIZED_SIZE,
+        );
+
+        random_oracle_seed.extend_from_slice(&public_key_hashed_to_signature_group_as_bytes);
+        random_oracle_seed.extend_from_slice(&public_key_as_bytes);
+        random_oracle_seed.extend_from_slice(&public_key_in_signature_group_as_bytes);
+        random_oracle_seed.extend_from_slice(&E::signature_point_to_byte(&self.0));
 
         let hasher = <DefaultFieldHasher<H> as HashToField<
             <<E as EngineBLS>::PublicKeyGroup as Group>::ScalarField,

src/lib.rs

@@ -99,9 +99,6 @@ extern crate sha3;
 
 extern crate alloc;
 
-#[cfg(feature = "serde")]
-extern crate serde;
-
 use core::borrow::Borrow;
 use digest::DynDigest;