Updated to "threshold_crypto" version eliminating the deprecated "failure" crate

Further crate updates to accommodate the newer version of "rand"

Cargo.toml

@@ -29,11 +29,11 @@ failure = "0.1.6"
 hex_fmt = "0.3"
 init_with = "1.1.0"
 log = "0.4.8"
-rand = "0.6.5"
+rand = "0.7.3"
 rand_derive = "0.5.0"
 reed-solomon-erasure = "4.0.1"
 serde = { version = "1.0.102", features = ["derive", "rc"] }
-threshold_crypto = { rev = "624eeee", git = "https://github.com/poanetwork/threshold_crypto" }
+threshold_crypto = { rev = "a7fbfa4", git = "https://github.com/poanetwork/threshold_crypto" }
 tiny-keccak = { version = "2.0.1", features = ["sha3"]}
 
 [dev-dependencies]
@@ -44,7 +44,7 @@ docopt = "1.1.0"
 hbbft_testing = { path = "hbbft_testing", features = ["use-insecure-test-only-mock-crypto"] }
 itertools = "0.9.0"
 number_prefix = "0.3.0"
-proptest = "0.9.4"
+proptest = "0.10.1"
 
 [[example]]
 name = "consensus-node"

examples/network/node.rs

@@ -89,7 +89,7 @@ impl<T: Clone + Debug + AsRef<[u8]> + PartialEq + Send + Sync + From<Vec<u8>> +
         let tx_from_algo = messaging.tx_from_algo();
         let stop_tx = messaging.stop_tx();
 
-        let mut rng = rand::rngs::OsRng::new().unwrap();
+        let mut rng = rand::rngs::OsRng;
 
         // All spawned threads will have exited by the end of the scope.
         crossbeam::scope(|scope| {

examples/simulation.rs

@@ -399,7 +399,7 @@ fn parse_args() -> Result<Args, docopt::Error> {
 
 fn main() {
     env_logger::init();
-    let mut rng = OsRng::new().expect("Could not initialize OS random number generator.");
+    let mut rng = OsRng;
 
     let args = parse_args().unwrap_or_else(|e| e.exit());
     if args.flag_n <= 3 * args.flag_f {

hbbft_testing/Cargo.toml

@@ -25,10 +25,10 @@ travis-ci = { repository = "poanetwork/hbbft" }
 failure = "0.1.6"
 hbbft = { path = ".." }
 integer-sqrt = "0.1.2"
-proptest = "0.9.4"
-rand = "0.6.5"
-rand_xorshift = "0.1.1"
-threshold_crypto = { rev = "624eeee", git = "https://github.com/poanetwork/threshold_crypto" }
+proptest = "0.10.1"
+rand = "0.7.3"
+rand_xorshift = "0.2.0"
+threshold_crypto = { rev = "a7fbfa4", git = "https://github.com/poanetwork/threshold_crypto" }
 
 [features]
 use-insecure-test-only-mock-crypto = ["hbbft/use-insecure-test-only-mock-crypto"]

src/broadcast/mod.rs

@@ -150,7 +150,7 @@
 //!     const NUM_NODES: u64 = 7;
 //!     const PROPOSER_ID: u64 = 3;
 //!
-//!     let mut rng = OsRng::new().expect("Could not initialize OS random number generator.");
+//!     let mut rng = OsRng;
 //!
 //!     let validators = Arc::new(ValidatorSet::from(0..NUM_NODES));
 //!

src/dynamic_honey_badger/votes.rs

@@ -209,7 +209,7 @@ mod tests {
     /// the vote by node `i` for making `j` the only validator. Each node signed this for nodes
     /// `0`, `1`, ... in order.
     fn setup(node_num: usize, era: u64) -> (Vec<VoteCounter<usize>>, Vec<Vec<SignedVote<usize>>>) {
-        let mut rng = rngs::OsRng::new().expect("could not initialize OsRng");
+        let mut rng = rngs::OsRng;
 
         // Generate keys for signing and encrypting messages.
         let sec_keys: BTreeMap<_, SecretKey> = (0..node_num).map(|id| (id, rng.gen())).collect();

src/sync_key_gen.rs

@@ -63,7 +63,7 @@
 //! use hbbft::sync_key_gen::{to_pub_keys, AckOutcome, PartOutcome, PubKeyMap, SyncKeyGen};
 //!
 //! // Use the OS random number generator for any randomness:
-//! let mut rng = rand::rngs::OsRng::new().expect("Could not open OS random number generator.");
+//! let mut rng = rand::rngs::OsRng;
 //!
 //! // Two out of four shares will suffice to sign or encrypt something.
 //! let (threshold, node_num) = (1, 4);
@@ -189,8 +189,9 @@ use crate::crypto::{
     serde_impl::FieldWrap,
     Fr, G1Affine, PublicKeySet, SecretKeyShare,
 };
-use crate::pairing::{CurveAffine, Field};
 use crate::NodeIdT;
+use threshold_crypto::ff::Field;
+use threshold_crypto::group::CurveAffine;
 
 /// A cryptographic key that allows decrypting messages that were encrypted to the key's owner.
 pub trait SecretKey {