Merge pull request #138 from str4d/release-0.1.0

Release 0.1.0
2025-02-11 17:55:46 +00:00 · 2019-10-09 11:11:58 +13:00 · 2019-10-09 11:11:58 +13:00 · a57dc7f478
commit a57dc7f478
parent 39971891d5 98731c8374
18 changed files with 448 additions and 202 deletions
--- a/.github/workflows/rust.yml
+++ b/.github/workflows/rust.yml
@ -3,45 +3,60 @@ name: Rust
 on: [push, pull_request]

 jobs:
+  lint:
+    name: Lint
+    runs-on: ubuntu-latest
+
+    steps:
+      - uses: actions/checkout@v1
+      - uses: actions-rs/toolchain@v1
+        with:
+          toolchain: 1.37.0
+          override: true
+
+      # Ensure all code has been formatted with rustfmt
+      - run: rustup component add rustfmt
+      - name: Check formatting
+        uses: actions-rs/cargo@v1
+        with:
+          command: fmt
+          args: --all -- --check --color always
+
  test:
    name: Test on ${{ matrix.os }}
    runs-on: ${{ matrix.os }}
    strategy:
      matrix:
-        os: [ubuntu-latest, windows-latest]
+        os: [ubuntu-latest, windows-latest, macOS-latest]

    steps:
-    - uses: actions/checkout@v1
-    - name: Check formatting
-      run: cargo fmt --all -- --check
-    - name: Build
-      run: cargo build --verbose --release --all
-    - name: Run tests
-      run: cargo test --verbose --release --all
-    - name: Run slow tests
-      run: cargo test --verbose --release --all -- --ignored
-
-  macOS:
-    name: Test on macOS-latest
-    runs-on: macOS-latest
-
-    steps:
-    - name: Install Rust
-      run: curl https://sh.rustup.rs -sSf | sh -s -- -y
-    - name: Install rustfmt
-      run: $HOME/.cargo/bin/rustup component add rustfmt
-    - uses: actions/checkout@v1
-    - name: Check formatting
-      run: $HOME/.cargo/bin/cargo fmt --all -- --check
-    - name: Build
-      run: $HOME/.cargo/bin/cargo build --verbose --release --all
-    - name: Run tests
-      run: $HOME/.cargo/bin/cargo test --verbose --release --all
-    - name: Run slow tests
-      run: $HOME/.cargo/bin/cargo test --verbose --release --all -- --ignored
+      - uses: actions/checkout@v1
+      - uses: actions-rs/toolchain@v1
+        with:
+          toolchain: 1.37.0
+          override: true
+      - name: cargo fetch
+        uses: actions-rs/cargo@v1
+        with:
+          command: fetch
+      - name: Build tests
+        uses: actions-rs/cargo@v1
+        with:
+          command: build
+          args: --verbose --release --all --tests
+      - name: Run tests
+        uses: actions-rs/cargo@v1
+        with:
+          command: test
+          args: --verbose --release --all
+      - name: Run slow tests
+        uses: actions-rs/cargo@v1
+        with:
+          command: test
+          args: --verbose --release --all -- --ignored

  doc-links:
-    name: Check intra-doc links
+    name: Nightly lint
    runs-on: ubuntu-latest

    steps:
@ -50,7 +65,22 @@ jobs:
        with:
          toolchain: nightly
          override: true
-      - uses: actions-rs/cargo@v1
+      - name: cargo fetch
+        uses: actions-rs/cargo@v1
+        with:
+          command: fetch
+
+      # Ensure intra-documentation links all resolve correctly
+      # Requires #![deny(intra_doc_link_resolution_failure)] in crates.
+      - name: Check intra-doc links
+        uses: actions-rs/cargo@v1
        with:
          command: doc
-          args: --document-private-items
+          args: --all --document-private-items
+
+      # Build benchmarks to prevent bitrot
+      - name: Build benchmarks
+        uses: actions-rs/cargo@v1
+        with:
+          command: build
+          args: --verbose --all --benches
--- a/Cargo.lock
+++ b/Cargo.lock
@ -54,19 +54,19 @@ source = "registry+https://github.com/rust-lang/crates.io-index"

 [[package]]
 name = "bellman"
-version = "0.1.0"
+version = "0.2.0"
 dependencies = [
 "bit-vec 0.4.4 (registry+https://github.com/rust-lang/crates.io-index)",
 "blake2s_simd 0.5.8 (registry+https://github.com/rust-lang/crates.io-index)",
 "byteorder 1.3.2 (registry+https://github.com/rust-lang/crates.io-index)",
 "crossbeam 0.7.2 (registry+https://github.com/rust-lang/crates.io-index)",
- "ff 0.4.0",
+ "ff 0.5.0",
 "futures 0.1.29 (registry+https://github.com/rust-lang/crates.io-index)",
 "futures-cpupool 0.1.8 (registry+https://github.com/rust-lang/crates.io-index)",
- "group 0.1.0",
+ "group 0.2.0",
 "hex-literal 0.2.1 (registry+https://github.com/rust-lang/crates.io-index)",
 "num_cpus 1.10.1 (registry+https://github.com/rust-lang/crates.io-index)",
- "pairing 0.14.2",
+ "pairing 0.15.0",
 "rand 0.7.0 (registry+https://github.com/rust-lang/crates.io-index)",
 "rand_core 0.5.1 (registry+https://github.com/rust-lang/crates.io-index)",
 "rand_xorshift 0.2.0 (registry+https://github.com/rust-lang/crates.io-index)",
@ -251,16 +251,16 @@ source = "registry+https://github.com/rust-lang/crates.io-index"

 [[package]]
 name = "ff"
-version = "0.4.0"
+version = "0.5.0"
 dependencies = [
 "byteorder 1.3.2 (registry+https://github.com/rust-lang/crates.io-index)",
- "ff_derive 0.3.0",
+ "ff_derive 0.4.0",
 "rand_core 0.5.1 (registry+https://github.com/rust-lang/crates.io-index)",
 ]

 [[package]]
 name = "ff_derive"
-version = "0.3.0"
+version = "0.4.0"
 dependencies = [
 "num-bigint 0.2.3 (registry+https://github.com/rust-lang/crates.io-index)",
 "num-integer 0.1.41 (registry+https://github.com/rust-lang/crates.io-index)",
@ -316,9 +316,9 @@ dependencies = [

 [[package]]
 name = "group"
-version = "0.1.0"
+version = "0.2.0"
 dependencies = [
- "ff 0.4.0",
+ "ff 0.5.0",
 "rand 0.7.0 (registry+https://github.com/rust-lang/crates.io-index)",
 "rand_xorshift 0.2.0 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
@ -357,19 +357,19 @@ source = "registry+https://github.com/rust-lang/crates.io-index"

 [[package]]
 name = "librustzcash"
-version = "0.1.0"
+version = "0.2.0"
 dependencies = [
- "bellman 0.1.0",
+ "bellman 0.2.0",
 "blake2b_simd 0.5.8 (registry+https://github.com/rust-lang/crates.io-index)",
 "blake2s_simd 0.5.8 (registry+https://github.com/rust-lang/crates.io-index)",
 "byteorder 1.3.2 (registry+https://github.com/rust-lang/crates.io-index)",
- "ff 0.4.0",
+ "ff 0.5.0",
 "lazy_static 1.4.0 (registry+https://github.com/rust-lang/crates.io-index)",
 "libc 0.2.62 (registry+https://github.com/rust-lang/crates.io-index)",
- "pairing 0.14.2",
+ "pairing 0.15.0",
 "rand_core 0.5.1 (registry+https://github.com/rust-lang/crates.io-index)",
- "zcash_primitives 0.0.0",
- "zcash_proofs 0.0.0",
+ "zcash_primitives 0.1.0",
+ "zcash_proofs 0.1.0",
 ]

 [[package]]
@ -435,11 +435,11 @@ source = "registry+https://github.com/rust-lang/crates.io-index"

 [[package]]
 name = "pairing"
-version = "0.14.2"
+version = "0.15.0"
 dependencies = [
 "byteorder 1.3.2 (registry+https://github.com/rust-lang/crates.io-index)",
- "ff 0.4.0",
- "group 0.1.0",
+ "ff 0.5.0",
+ "group 0.2.0",
 "rand_core 0.5.1 (registry+https://github.com/rust-lang/crates.io-index)",
 "rand_xorshift 0.2.0 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
@ -603,31 +603,31 @@ source = "registry+https://github.com/rust-lang/crates.io-index"

 [[package]]
 name = "zcash_client_backend"
-version = "0.0.0"
+version = "0.1.0"
 dependencies = [
 "bech32 0.7.1 (registry+https://github.com/rust-lang/crates.io-index)",
- "pairing 0.14.2",
+ "pairing 0.15.0",
 "rand_core 0.5.1 (registry+https://github.com/rust-lang/crates.io-index)",
 "rand_xorshift 0.2.0 (registry+https://github.com/rust-lang/crates.io-index)",
- "zcash_primitives 0.0.0",
+ "zcash_primitives 0.1.0",
 ]

 [[package]]
 name = "zcash_primitives"
-version = "0.0.0"
+version = "0.1.0"
 dependencies = [
 "aes 0.3.2 (registry+https://github.com/rust-lang/crates.io-index)",
 "blake2b_simd 0.5.8 (registry+https://github.com/rust-lang/crates.io-index)",
 "blake2s_simd 0.5.8 (registry+https://github.com/rust-lang/crates.io-index)",
 "byteorder 1.3.2 (registry+https://github.com/rust-lang/crates.io-index)",
 "crypto_api_chachapoly 0.2.2 (registry+https://github.com/rust-lang/crates.io-index)",
- "ff 0.4.0",
+ "ff 0.5.0",
 "fpe 0.2.0 (registry+https://github.com/rust-lang/crates.io-index)",
 "hex 0.3.2 (registry+https://github.com/rust-lang/crates.io-index)",
 "hex-literal 0.2.1 (registry+https://github.com/rust-lang/crates.io-index)",
 "lazy_static 1.4.0 (registry+https://github.com/rust-lang/crates.io-index)",
 "log 0.4.8 (registry+https://github.com/rust-lang/crates.io-index)",
- "pairing 0.14.2",
+ "pairing 0.15.0",
 "rand 0.7.0 (registry+https://github.com/rust-lang/crates.io-index)",
 "rand_core 0.5.1 (registry+https://github.com/rust-lang/crates.io-index)",
 "rand_xorshift 0.2.0 (registry+https://github.com/rust-lang/crates.io-index)",
@ -636,17 +636,17 @@ dependencies = [

 [[package]]
 name = "zcash_proofs"
-version = "0.0.0"
+version = "0.1.0"
 dependencies = [
- "bellman 0.1.0",
+ "bellman 0.2.0",
 "blake2b_simd 0.5.8 (registry+https://github.com/rust-lang/crates.io-index)",
 "byteorder 1.3.2 (registry+https://github.com/rust-lang/crates.io-index)",
 "directories 1.0.2 (registry+https://github.com/rust-lang/crates.io-index)",
- "ff 0.4.0",
- "pairing 0.14.2",
+ "ff 0.5.0",
+ "pairing 0.15.0",
 "rand_core 0.5.1 (registry+https://github.com/rust-lang/crates.io-index)",
 "rand_xorshift 0.2.0 (registry+https://github.com/rust-lang/crates.io-index)",
- "zcash_primitives 0.0.0",
+ "zcash_primitives 0.1.0",
 ]

 [metadata]
--- a/bellman/Cargo.toml
+++ b/bellman/Cargo.toml
@ -7,19 +7,19 @@ homepage = "https://github.com/ebfull/bellman"
 license = "MIT/Apache-2.0"
 name = "bellman"
 repository = "https://github.com/ebfull/bellman"
-version = "0.1.0"
+version = "0.2.0"
 edition = "2018"

 [dependencies]
 bit-vec = "0.4.4"
 blake2s_simd = "0.5"
-ff = { path = "../ff" }
+ff = { version = "0.5.0", path = "../ff" }
 futures = "0.1"
 futures-cpupool = { version = "0.1", optional = true }
-group = { path = "../group" }
+group = { version = "0.2.0", path = "../group" }
 num_cpus = { version = "1", optional = true }
 crossbeam = { version = "0.7", optional = true }
-pairing = { path = "../pairing", optional = true }
+pairing = { version = "0.15.0", path = "../pairing", optional = true }
 rand_core = "0.5"
 byteorder = "1"

@ -38,3 +38,6 @@ default = ["groth16", "multicore"]
 name = "mimc"
 path = "tests/mimc.rs"
 required-features = ["groth16"]
+
+[badges]
+maintenance = { status = "actively-developed" }
--- a/ff/Cargo.toml
+++ b/ff/Cargo.toml
@ -1,6 +1,6 @@
 [package]
 name = "ff"
-version = "0.4.0"
+version = "0.5.0"
 authors = ["Sean Bowe <ewillbefull@gmail.com>"]
 description = "Library for building and interfacing with finite fields"
 readme = "README.md"
@ -12,9 +12,12 @@ edition = "2018"

 [dependencies]
 byteorder = "1"
-ff_derive = { version = "0.3.0", path = "ff_derive", optional = true }
+ff_derive = { version = "0.4.0", path = "ff_derive", optional = true }
 rand_core = "0.5"

 [features]
 default = []
 derive = ["ff_derive"]
+
+[badges]
+maintenance = { status = "actively-developed" }
--- a/ff/ff_derive/Cargo.toml
+++ b/ff/ff_derive/Cargo.toml
@ -1,6 +1,6 @@
 [package]
 name = "ff_derive"
-version = "0.3.0"
+version = "0.4.0"
 authors = ["Sean Bowe <ewillbefull@gmail.com>"]
 description = "Procedural macro library used to build custom prime field implementations"
 documentation = "https://docs.rs/ff/"
@ -19,3 +19,6 @@ num-integer = "0.1"
 proc-macro2 = "1"
 quote = "1"
 syn = "1"
+
+[badges]
+maintenance = { status = "passively-maintained" }
--- a/group/Cargo.toml
+++ b/group/Cargo.toml
@ -1,6 +1,6 @@
 [package]
 name = "group"
-version = "0.1.0"
+version = "0.2.0"
 authors = [
    "Sean Bowe <ewillbefull@gmail.com>",
    "Jack Grigg <jack@z.cash>",
@ -15,6 +15,9 @@ repository = "https://github.com/ebfull/group"
 edition = "2018"

 [dependencies]
-ff = { path = "../ff" }
+ff = { version = "0.5.0", path = "../ff" }
 rand = "0.7"
 rand_xorshift = "0.2"
+
+[badges]
+maintenance = { status = "actively-developed" }
--- a/librustzcash/Cargo.toml
+++ b/librustzcash/Cargo.toml
@ -1,13 +1,17 @@
 [package]
 name = "librustzcash"
-version = "0.1.0"
+description = "Rust FFI used by the zcashd binary. Not an official API."
+version = "0.2.0"
 authors = [
    "Sean Bowe <ewillbefull@gmail.com>",
    "Jack Grigg <jack@z.cash>",
    "Jay Graber <jay@z.cash>",
    "Simon Liu <simon@z.cash>"
 ]
+homepage = "https://github.com/zcash/librustzcash"
+repository = "https://github.com/zcash/librustzcash"
 readme = "README.md"
+license = "MIT OR Apache-2.0"
 edition = "2018"

 [lib]
@ -16,14 +20,17 @@ path = "src/rustzcash.rs"
 crate-type = ["staticlib"]

 [dependencies]
-bellman = { path = "../bellman" }
+bellman = { version = "0.2.0", path = "../bellman" }
 blake2b_simd = "0.5"
 blake2s_simd = "0.5"
-ff = { path = "../ff" }
+ff = { version = "0.5.0", path = "../ff" }
 libc = "0.2"
-pairing = { path = "../pairing" }
+pairing = { version = "0.15.0", path = "../pairing" }
 lazy_static = "1"
 byteorder = "1"
 rand_core = "0.5.1"
-zcash_primitives = { path = "../zcash_primitives" }
-zcash_proofs = { path = "../zcash_proofs" }
+zcash_primitives = { version = "0.1.0", path = "../zcash_primitives" }
+zcash_proofs = { version = "0.1.0", path = "../zcash_proofs" }
+
+[badges]
+maintenance = { status = "deprecated" }
--- a/pairing/Cargo.toml
+++ b/pairing/Cargo.toml
@ -2,7 +2,7 @@
 name = "pairing"

 # Remember to change version string in README.md.
-version = "0.14.2"
+version = "0.15.0"
 authors = [
    "Sean Bowe <ewillbefull@gmail.com>",
    "Jack Grigg <jack@z.cash>",
@ -18,8 +18,8 @@ edition ="2018"

 [dependencies]
 byteorder = "1"
-ff = { path = "../ff", features = ["derive"] }
-group = { path = "../group" }
+ff = { version = "0.5.0", path = "../ff", features = ["derive"] }
+group = { version = "0.2.0", path = "../group" }
 rand_core = "0.5"

 [dev-dependencies]
@ -29,3 +29,6 @@ rand_xorshift = "0.2"
 unstable-features = ["expose-arith"]
 expose-arith = []
 default = []
+
+[badges]
+maintenance = { status = "actively-developed" }
--- a/pairing/benches/bls12_381/ec.rs
+++ b/pairing/benches/bls12_381/ec.rs
@ -1,6 +1,8 @@
 mod g1 {
-    use rand::{Rand, SeedableRng, XorShiftRng};
+    use rand_core::SeedableRng;
+    use rand_xorshift::XorShiftRng;

+    use ff::Field;
    use group::CurveProjective;
    use pairing::bls12_381::*;

@ -8,10 +10,13 @@ mod g1 {
    fn bench_g1_mul_assign(b: &mut ::test::Bencher) {
        const SAMPLES: usize = 1000;

-        let mut rng = XorShiftRng::from_seed([0x5dbe6259, 0x8d313d76, 0x3237db17, 0xe5bc0654]);
+        let mut rng = XorShiftRng::from_seed([
+            0x59, 0x62, 0xbe, 0x5d, 0x76, 0x3d, 0x31, 0x8d, 0x17, 0xdb, 0x37, 0x32, 0x54, 0x06,
+            0xbc, 0xe5,
+        ]);

        let v: Vec<(G1, Fr)> = (0..SAMPLES)
-            .map(|_| (G1::rand(&mut rng), Fr::rand(&mut rng)))
+            .map(|_| (G1::random(&mut rng), Fr::random(&mut rng)))
            .collect();

        let mut count = 0;
@ -27,10 +32,13 @@ mod g1 {
    fn bench_g1_add_assign(b: &mut ::test::Bencher) {
        const SAMPLES: usize = 1000;

-        let mut rng = XorShiftRng::from_seed([0x5dbe6259, 0x8d313d76, 0x3237db17, 0xe5bc0654]);
+        let mut rng = XorShiftRng::from_seed([
+            0x59, 0x62, 0xbe, 0x5d, 0x76, 0x3d, 0x31, 0x8d, 0x17, 0xdb, 0x37, 0x32, 0x54, 0x06,
+            0xbc, 0xe5,
+        ]);

        let v: Vec<(G1, G1)> = (0..SAMPLES)
-            .map(|_| (G1::rand(&mut rng), G1::rand(&mut rng)))
+            .map(|_| (G1::random(&mut rng), G1::random(&mut rng)))
            .collect();

        let mut count = 0;
@ -46,10 +54,13 @@ mod g1 {
    fn bench_g1_add_assign_mixed(b: &mut ::test::Bencher) {
        const SAMPLES: usize = 1000;

-        let mut rng = XorShiftRng::from_seed([0x5dbe6259, 0x8d313d76, 0x3237db17, 0xe5bc0654]);
+        let mut rng = XorShiftRng::from_seed([
+            0x59, 0x62, 0xbe, 0x5d, 0x76, 0x3d, 0x31, 0x8d, 0x17, 0xdb, 0x37, 0x32, 0x54, 0x06,
+            0xbc, 0xe5,
+        ]);

        let v: Vec<(G1, G1Affine)> = (0..SAMPLES)
-            .map(|_| (G1::rand(&mut rng), G1::rand(&mut rng).into()))
+            .map(|_| (G1::random(&mut rng), G1::random(&mut rng).into()))
            .collect();

        let mut count = 0;
@ -63,8 +74,10 @@ mod g1 {
 }

 mod g2 {
-    use rand::{Rand, SeedableRng, XorShiftRng};
+    use rand_core::SeedableRng;
+    use rand_xorshift::XorShiftRng;

+    use ff::Field;
    use group::CurveProjective;
    use pairing::bls12_381::*;

@ -72,10 +85,13 @@ mod g2 {
    fn bench_g2_mul_assign(b: &mut ::test::Bencher) {
        const SAMPLES: usize = 1000;

-        let mut rng = XorShiftRng::from_seed([0x5dbe6259, 0x8d313d76, 0x3237db17, 0xe5bc0654]);
+        let mut rng = XorShiftRng::from_seed([
+            0x59, 0x62, 0xbe, 0x5d, 0x76, 0x3d, 0x31, 0x8d, 0x17, 0xdb, 0x37, 0x32, 0x54, 0x06,
+            0xbc, 0xe5,
+        ]);

        let v: Vec<(G2, Fr)> = (0..SAMPLES)
-            .map(|_| (G2::rand(&mut rng), Fr::rand(&mut rng)))
+            .map(|_| (G2::random(&mut rng), Fr::random(&mut rng)))
            .collect();

        let mut count = 0;
@ -91,10 +107,13 @@ mod g2 {
    fn bench_g2_add_assign(b: &mut ::test::Bencher) {
        const SAMPLES: usize = 1000;

-        let mut rng = XorShiftRng::from_seed([0x5dbe6259, 0x8d313d76, 0x3237db17, 0xe5bc0654]);
+        let mut rng = XorShiftRng::from_seed([
+            0x59, 0x62, 0xbe, 0x5d, 0x76, 0x3d, 0x31, 0x8d, 0x17, 0xdb, 0x37, 0x32, 0x54, 0x06,
+            0xbc, 0xe5,
+        ]);

        let v: Vec<(G2, G2)> = (0..SAMPLES)
-            .map(|_| (G2::rand(&mut rng), G2::rand(&mut rng)))
+            .map(|_| (G2::random(&mut rng), G2::random(&mut rng)))
            .collect();

        let mut count = 0;
@ -110,10 +129,13 @@ mod g2 {
    fn bench_g2_add_assign_mixed(b: &mut ::test::Bencher) {
        const SAMPLES: usize = 1000;

-        let mut rng = XorShiftRng::from_seed([0x5dbe6259, 0x8d313d76, 0x3237db17, 0xe5bc0654]);
+        let mut rng = XorShiftRng::from_seed([
+            0x59, 0x62, 0xbe, 0x5d, 0x76, 0x3d, 0x31, 0x8d, 0x17, 0xdb, 0x37, 0x32, 0x54, 0x06,
+            0xbc, 0xe5,
+        ]);

        let v: Vec<(G2, G2Affine)> = (0..SAMPLES)
-            .map(|_| (G2::rand(&mut rng), G2::rand(&mut rng).into()))
+            .map(|_| (G2::random(&mut rng), G2::random(&mut rng).into()))
            .collect();

        let mut count = 0;
--- a/pairing/benches/bls12_381/fq.rs
+++ b/pairing/benches/bls12_381/fq.rs
@ -1,4 +1,5 @@
-use rand::{Rand, SeedableRng, XorShiftRng};
+use rand_core::SeedableRng;
+use rand_xorshift::XorShiftRng;

 use ff::{Field, PrimeField, PrimeFieldRepr, SqrtField};
 use pairing::bls12_381::*;
@ -7,12 +8,15 @@ use pairing::bls12_381::*;
 fn bench_fq_repr_add_nocarry(b: &mut ::test::Bencher) {
    const SAMPLES: usize = 1000;

-    let mut rng = XorShiftRng::from_seed([0x5dbe6259, 0x8d313d76, 0x3237db17, 0xe5bc0654]);
+    let mut rng = XorShiftRng::from_seed([
+        0x59, 0x62, 0xbe, 0x5d, 0x76, 0x3d, 0x31, 0x8d, 0x17, 0xdb, 0x37, 0x32, 0x54, 0x06, 0xbc,
+        0xe5,
+    ]);

    let v: Vec<(FqRepr, FqRepr)> = (0..SAMPLES)
        .map(|_| {
-            let mut tmp1 = FqRepr::rand(&mut rng);
-            let mut tmp2 = FqRepr::rand(&mut rng);
+            let mut tmp1 = Fq::random(&mut rng).into_repr();
+            let mut tmp2 = Fq::random(&mut rng).into_repr();
            // Shave a few bits off to avoid overflow.
            for _ in 0..3 {
                tmp1.div2();
@ -35,11 +39,14 @@ fn bench_fq_repr_add_nocarry(b: &mut ::test::Bencher) {
 fn bench_fq_repr_sub_noborrow(b: &mut ::test::Bencher) {
    const SAMPLES: usize = 1000;

-    let mut rng = XorShiftRng::from_seed([0x5dbe6259, 0x8d313d76, 0x3237db17, 0xe5bc0654]);
+    let mut rng = XorShiftRng::from_seed([
+        0x59, 0x62, 0xbe, 0x5d, 0x76, 0x3d, 0x31, 0x8d, 0x17, 0xdb, 0x37, 0x32, 0x54, 0x06, 0xbc,
+        0xe5,
+    ]);

    let v: Vec<(FqRepr, FqRepr)> = (0..SAMPLES)
        .map(|_| {
-            let tmp1 = FqRepr::rand(&mut rng);
+            let tmp1 = Fq::random(&mut rng).into_repr();
            let mut tmp2 = tmp1;
            // Ensure tmp2 is smaller than tmp1.
            for _ in 0..10 {
@ -62,9 +69,14 @@ fn bench_fq_repr_sub_noborrow(b: &mut ::test::Bencher) {
 fn bench_fq_repr_num_bits(b: &mut ::test::Bencher) {
    const SAMPLES: usize = 1000;

-    let mut rng = XorShiftRng::from_seed([0x5dbe6259, 0x8d313d76, 0x3237db17, 0xe5bc0654]);
+    let mut rng = XorShiftRng::from_seed([
+        0x59, 0x62, 0xbe, 0x5d, 0x76, 0x3d, 0x31, 0x8d, 0x17, 0xdb, 0x37, 0x32, 0x54, 0x06, 0xbc,
+        0xe5,
+    ]);

-    let v: Vec<FqRepr> = (0..SAMPLES).map(|_| FqRepr::rand(&mut rng)).collect();
+    let v: Vec<FqRepr> = (0..SAMPLES)
+        .map(|_| Fq::random(&mut rng).into_repr())
+        .collect();

    let mut count = 0;
    b.iter(|| {
@ -78,9 +90,14 @@ fn bench_fq_repr_num_bits(b: &mut ::test::Bencher) {
 fn bench_fq_repr_mul2(b: &mut ::test::Bencher) {
    const SAMPLES: usize = 1000;

-    let mut rng = XorShiftRng::from_seed([0x5dbe6259, 0x8d313d76, 0x3237db17, 0xe5bc0654]);
+    let mut rng = XorShiftRng::from_seed([
+        0x59, 0x62, 0xbe, 0x5d, 0x76, 0x3d, 0x31, 0x8d, 0x17, 0xdb, 0x37, 0x32, 0x54, 0x06, 0xbc,
+        0xe5,
+    ]);

-    let v: Vec<FqRepr> = (0..SAMPLES).map(|_| FqRepr::rand(&mut rng)).collect();
+    let v: Vec<FqRepr> = (0..SAMPLES)
+        .map(|_| Fq::random(&mut rng).into_repr())
+        .collect();

    let mut count = 0;
    b.iter(|| {
@ -95,9 +112,14 @@ fn bench_fq_repr_mul2(b: &mut ::test::Bencher) {
 fn bench_fq_repr_div2(b: &mut ::test::Bencher) {
    const SAMPLES: usize = 1000;

-    let mut rng = XorShiftRng::from_seed([0x5dbe6259, 0x8d313d76, 0x3237db17, 0xe5bc0654]);
+    let mut rng = XorShiftRng::from_seed([
+        0x59, 0x62, 0xbe, 0x5d, 0x76, 0x3d, 0x31, 0x8d, 0x17, 0xdb, 0x37, 0x32, 0x54, 0x06, 0xbc,
+        0xe5,
+    ]);

-    let v: Vec<FqRepr> = (0..SAMPLES).map(|_| FqRepr::rand(&mut rng)).collect();
+    let v: Vec<FqRepr> = (0..SAMPLES)
+        .map(|_| Fq::random(&mut rng).into_repr())
+        .collect();

    let mut count = 0;
    b.iter(|| {
@ -112,10 +134,13 @@ fn bench_fq_repr_div2(b: &mut ::test::Bencher) {
 fn bench_fq_add_assign(b: &mut ::test::Bencher) {
    const SAMPLES: usize = 1000;

-    let mut rng = XorShiftRng::from_seed([0x5dbe6259, 0x8d313d76, 0x3237db17, 0xe5bc0654]);
+    let mut rng = XorShiftRng::from_seed([
+        0x59, 0x62, 0xbe, 0x5d, 0x76, 0x3d, 0x31, 0x8d, 0x17, 0xdb, 0x37, 0x32, 0x54, 0x06, 0xbc,
+        0xe5,
+    ]);

    let v: Vec<(Fq, Fq)> = (0..SAMPLES)
-        .map(|_| (Fq::rand(&mut rng), Fq::rand(&mut rng)))
+        .map(|_| (Fq::random(&mut rng), Fq::random(&mut rng)))
        .collect();

    let mut count = 0;
@ -131,10 +156,13 @@ fn bench_fq_add_assign(b: &mut ::test::Bencher) {
 fn bench_fq_sub_assign(b: &mut ::test::Bencher) {
    const SAMPLES: usize = 1000;

-    let mut rng = XorShiftRng::from_seed([0x5dbe6259, 0x8d313d76, 0x3237db17, 0xe5bc0654]);
+    let mut rng = XorShiftRng::from_seed([
+        0x59, 0x62, 0xbe, 0x5d, 0x76, 0x3d, 0x31, 0x8d, 0x17, 0xdb, 0x37, 0x32, 0x54, 0x06, 0xbc,
+        0xe5,
+    ]);

    let v: Vec<(Fq, Fq)> = (0..SAMPLES)
-        .map(|_| (Fq::rand(&mut rng), Fq::rand(&mut rng)))
+        .map(|_| (Fq::random(&mut rng), Fq::random(&mut rng)))
        .collect();

    let mut count = 0;
@ -150,10 +178,13 @@ fn bench_fq_sub_assign(b: &mut ::test::Bencher) {
 fn bench_fq_mul_assign(b: &mut ::test::Bencher) {
    const SAMPLES: usize = 1000;

-    let mut rng = XorShiftRng::from_seed([0x5dbe6259, 0x8d313d76, 0x3237db17, 0xe5bc0654]);
+    let mut rng = XorShiftRng::from_seed([
+        0x59, 0x62, 0xbe, 0x5d, 0x76, 0x3d, 0x31, 0x8d, 0x17, 0xdb, 0x37, 0x32, 0x54, 0x06, 0xbc,
+        0xe5,
+    ]);

    let v: Vec<(Fq, Fq)> = (0..SAMPLES)
-        .map(|_| (Fq::rand(&mut rng), Fq::rand(&mut rng)))
+        .map(|_| (Fq::random(&mut rng), Fq::random(&mut rng)))
        .collect();

    let mut count = 0;
@ -169,9 +200,12 @@ fn bench_fq_mul_assign(b: &mut ::test::Bencher) {
 fn bench_fq_square(b: &mut ::test::Bencher) {
    const SAMPLES: usize = 1000;

-    let mut rng = XorShiftRng::from_seed([0x5dbe6259, 0x8d313d76, 0x3237db17, 0xe5bc0654]);
+    let mut rng = XorShiftRng::from_seed([
+        0x59, 0x62, 0xbe, 0x5d, 0x76, 0x3d, 0x31, 0x8d, 0x17, 0xdb, 0x37, 0x32, 0x54, 0x06, 0xbc,
+        0xe5,
+    ]);

-    let v: Vec<Fq> = (0..SAMPLES).map(|_| Fq::rand(&mut rng)).collect();
+    let v: Vec<Fq> = (0..SAMPLES).map(|_| Fq::random(&mut rng)).collect();

    let mut count = 0;
    b.iter(|| {
@ -186,9 +220,12 @@ fn bench_fq_square(b: &mut ::test::Bencher) {
 fn bench_fq_inverse(b: &mut ::test::Bencher) {
    const SAMPLES: usize = 1000;

-    let mut rng = XorShiftRng::from_seed([0x5dbe6259, 0x8d313d76, 0x3237db17, 0xe5bc0654]);
+    let mut rng = XorShiftRng::from_seed([
+        0x59, 0x62, 0xbe, 0x5d, 0x76, 0x3d, 0x31, 0x8d, 0x17, 0xdb, 0x37, 0x32, 0x54, 0x06, 0xbc,
+        0xe5,
+    ]);

-    let v: Vec<Fq> = (0..SAMPLES).map(|_| Fq::rand(&mut rng)).collect();
+    let v: Vec<Fq> = (0..SAMPLES).map(|_| Fq::random(&mut rng)).collect();

    let mut count = 0;
    b.iter(|| {
@ -201,9 +238,12 @@ fn bench_fq_inverse(b: &mut ::test::Bencher) {
 fn bench_fq_negate(b: &mut ::test::Bencher) {
    const SAMPLES: usize = 1000;

-    let mut rng = XorShiftRng::from_seed([0x5dbe6259, 0x8d313d76, 0x3237db17, 0xe5bc0654]);
+    let mut rng = XorShiftRng::from_seed([
+        0x59, 0x62, 0xbe, 0x5d, 0x76, 0x3d, 0x31, 0x8d, 0x17, 0xdb, 0x37, 0x32, 0x54, 0x06, 0xbc,
+        0xe5,
+    ]);

-    let v: Vec<Fq> = (0..SAMPLES).map(|_| Fq::rand(&mut rng)).collect();
+    let v: Vec<Fq> = (0..SAMPLES).map(|_| Fq::random(&mut rng)).collect();

    let mut count = 0;
    b.iter(|| {
@ -218,11 +258,14 @@ fn bench_fq_negate(b: &mut ::test::Bencher) {
 fn bench_fq_sqrt(b: &mut ::test::Bencher) {
    const SAMPLES: usize = 1000;

-    let mut rng = XorShiftRng::from_seed([0x5dbe6259, 0x8d313d76, 0x3237db17, 0xe5bc0654]);
+    let mut rng = XorShiftRng::from_seed([
+        0x59, 0x62, 0xbe, 0x5d, 0x76, 0x3d, 0x31, 0x8d, 0x17, 0xdb, 0x37, 0x32, 0x54, 0x06, 0xbc,
+        0xe5,
+    ]);

    let v: Vec<Fq> = (0..SAMPLES)
        .map(|_| {
-            let mut tmp = Fq::rand(&mut rng);
+            let mut tmp = Fq::random(&mut rng);
            tmp.square();
            tmp
        })
@ -239,9 +282,12 @@ fn bench_fq_sqrt(b: &mut ::test::Bencher) {
 fn bench_fq_into_repr(b: &mut ::test::Bencher) {
    const SAMPLES: usize = 1000;

-    let mut rng = XorShiftRng::from_seed([0x5dbe6259, 0x8d313d76, 0x3237db17, 0xe5bc0654]);
+    let mut rng = XorShiftRng::from_seed([
+        0x59, 0x62, 0xbe, 0x5d, 0x76, 0x3d, 0x31, 0x8d, 0x17, 0xdb, 0x37, 0x32, 0x54, 0x06, 0xbc,
+        0xe5,
+    ]);

-    let v: Vec<Fq> = (0..SAMPLES).map(|_| Fq::rand(&mut rng)).collect();
+    let v: Vec<Fq> = (0..SAMPLES).map(|_| Fq::random(&mut rng)).collect();

    let mut count = 0;
    b.iter(|| {
@ -254,10 +300,13 @@ fn bench_fq_into_repr(b: &mut ::test::Bencher) {
 fn bench_fq_from_repr(b: &mut ::test::Bencher) {
    const SAMPLES: usize = 1000;

-    let mut rng = XorShiftRng::from_seed([0x5dbe6259, 0x8d313d76, 0x3237db17, 0xe5bc0654]);
+    let mut rng = XorShiftRng::from_seed([
+        0x59, 0x62, 0xbe, 0x5d, 0x76, 0x3d, 0x31, 0x8d, 0x17, 0xdb, 0x37, 0x32, 0x54, 0x06, 0xbc,
+        0xe5,
+    ]);

    let v: Vec<FqRepr> = (0..SAMPLES)
-        .map(|_| Fq::rand(&mut rng).into_repr())
+        .map(|_| Fq::random(&mut rng).into_repr())
        .collect();

    let mut count = 0;
--- a/pairing/benches/bls12_381/fq12.rs
+++ b/pairing/benches/bls12_381/fq12.rs
@ -1,4 +1,5 @@
-use rand::{Rand, SeedableRng, XorShiftRng};
+use rand_core::SeedableRng;
+use rand_xorshift::XorShiftRng;

 use ff::Field;
 use pairing::bls12_381::*;
@ -7,10 +8,13 @@ use pairing::bls12_381::*;
 fn bench_fq12_add_assign(b: &mut ::test::Bencher) {
    const SAMPLES: usize = 1000;

-    let mut rng = XorShiftRng::from_seed([0x5dbe6259, 0x8d313d76, 0x3237db17, 0xe5bc0654]);
+    let mut rng = XorShiftRng::from_seed([
+        0x59, 0x62, 0xbe, 0x5d, 0x76, 0x3d, 0x31, 0x8d, 0x17, 0xdb, 0x37, 0x32, 0x54, 0x06, 0xbc,
+        0xe5,
+    ]);

    let v: Vec<(Fq12, Fq12)> = (0..SAMPLES)
-        .map(|_| (Fq12::rand(&mut rng), Fq12::rand(&mut rng)))
+        .map(|_| (Fq12::random(&mut rng), Fq12::random(&mut rng)))
        .collect();

    let mut count = 0;
@ -26,10 +30,13 @@ fn bench_fq12_add_assign(b: &mut ::test::Bencher) {
 fn bench_fq12_sub_assign(b: &mut ::test::Bencher) {
    const SAMPLES: usize = 1000;

-    let mut rng = XorShiftRng::from_seed([0x5dbe6259, 0x8d313d76, 0x3237db17, 0xe5bc0654]);
+    let mut rng = XorShiftRng::from_seed([
+        0x59, 0x62, 0xbe, 0x5d, 0x76, 0x3d, 0x31, 0x8d, 0x17, 0xdb, 0x37, 0x32, 0x54, 0x06, 0xbc,
+        0xe5,
+    ]);

    let v: Vec<(Fq12, Fq12)> = (0..SAMPLES)
-        .map(|_| (Fq12::rand(&mut rng), Fq12::rand(&mut rng)))
+        .map(|_| (Fq12::random(&mut rng), Fq12::random(&mut rng)))
        .collect();

    let mut count = 0;
@ -45,10 +52,13 @@ fn bench_fq12_sub_assign(b: &mut ::test::Bencher) {
 fn bench_fq12_mul_assign(b: &mut ::test::Bencher) {
    const SAMPLES: usize = 1000;

-    let mut rng = XorShiftRng::from_seed([0x5dbe6259, 0x8d313d76, 0x3237db17, 0xe5bc0654]);
+    let mut rng = XorShiftRng::from_seed([
+        0x59, 0x62, 0xbe, 0x5d, 0x76, 0x3d, 0x31, 0x8d, 0x17, 0xdb, 0x37, 0x32, 0x54, 0x06, 0xbc,
+        0xe5,
+    ]);

    let v: Vec<(Fq12, Fq12)> = (0..SAMPLES)
-        .map(|_| (Fq12::rand(&mut rng), Fq12::rand(&mut rng)))
+        .map(|_| (Fq12::random(&mut rng), Fq12::random(&mut rng)))
        .collect();

    let mut count = 0;
@ -64,9 +74,12 @@ fn bench_fq12_mul_assign(b: &mut ::test::Bencher) {
 fn bench_fq12_squaring(b: &mut ::test::Bencher) {
    const SAMPLES: usize = 1000;

-    let mut rng = XorShiftRng::from_seed([0x5dbe6259, 0x8d313d76, 0x3237db17, 0xe5bc0654]);
+    let mut rng = XorShiftRng::from_seed([
+        0x59, 0x62, 0xbe, 0x5d, 0x76, 0x3d, 0x31, 0x8d, 0x17, 0xdb, 0x37, 0x32, 0x54, 0x06, 0xbc,
+        0xe5,
+    ]);

-    let v: Vec<Fq12> = (0..SAMPLES).map(|_| Fq12::rand(&mut rng)).collect();
+    let v: Vec<Fq12> = (0..SAMPLES).map(|_| Fq12::random(&mut rng)).collect();

    let mut count = 0;
    b.iter(|| {
@ -81,9 +94,12 @@ fn bench_fq12_squaring(b: &mut ::test::Bencher) {
 fn bench_fq12_inverse(b: &mut ::test::Bencher) {
    const SAMPLES: usize = 1000;

-    let mut rng = XorShiftRng::from_seed([0x5dbe6259, 0x8d313d76, 0x3237db17, 0xe5bc0654]);
+    let mut rng = XorShiftRng::from_seed([
+        0x59, 0x62, 0xbe, 0x5d, 0x76, 0x3d, 0x31, 0x8d, 0x17, 0xdb, 0x37, 0x32, 0x54, 0x06, 0xbc,
+        0xe5,
+    ]);

-    let v: Vec<Fq12> = (0..SAMPLES).map(|_| Fq12::rand(&mut rng)).collect();
+    let v: Vec<Fq12> = (0..SAMPLES).map(|_| Fq12::random(&mut rng)).collect();

    let mut count = 0;
    b.iter(|| {
--- a/pairing/benches/bls12_381/fq2.rs
+++ b/pairing/benches/bls12_381/fq2.rs
@ -1,4 +1,5 @@
-use rand::{Rand, SeedableRng, XorShiftRng};
+use rand_core::SeedableRng;
+use rand_xorshift::XorShiftRng;

 use ff::{Field, SqrtField};
 use pairing::bls12_381::*;
@ -7,10 +8,13 @@ use pairing::bls12_381::*;
 fn bench_fq2_add_assign(b: &mut ::test::Bencher) {
    const SAMPLES: usize = 1000;

-    let mut rng = XorShiftRng::from_seed([0x5dbe6259, 0x8d313d76, 0x3237db17, 0xe5bc0654]);
+    let mut rng = XorShiftRng::from_seed([
+        0x59, 0x62, 0xbe, 0x5d, 0x76, 0x3d, 0x31, 0x8d, 0x17, 0xdb, 0x37, 0x32, 0x54, 0x06, 0xbc,
+        0xe5,
+    ]);

    let v: Vec<(Fq2, Fq2)> = (0..SAMPLES)
-        .map(|_| (Fq2::rand(&mut rng), Fq2::rand(&mut rng)))
+        .map(|_| (Fq2::random(&mut rng), Fq2::random(&mut rng)))
        .collect();

    let mut count = 0;
@ -26,10 +30,13 @@ fn bench_fq2_add_assign(b: &mut ::test::Bencher) {
 fn bench_fq2_sub_assign(b: &mut ::test::Bencher) {
    const SAMPLES: usize = 1000;

-    let mut rng = XorShiftRng::from_seed([0x5dbe6259, 0x8d313d76, 0x3237db17, 0xe5bc0654]);
+    let mut rng = XorShiftRng::from_seed([
+        0x59, 0x62, 0xbe, 0x5d, 0x76, 0x3d, 0x31, 0x8d, 0x17, 0xdb, 0x37, 0x32, 0x54, 0x06, 0xbc,
+        0xe5,
+    ]);

    let v: Vec<(Fq2, Fq2)> = (0..SAMPLES)
-        .map(|_| (Fq2::rand(&mut rng), Fq2::rand(&mut rng)))
+        .map(|_| (Fq2::random(&mut rng), Fq2::random(&mut rng)))
        .collect();

    let mut count = 0;
@ -45,10 +52,13 @@ fn bench_fq2_sub_assign(b: &mut ::test::Bencher) {
 fn bench_fq2_mul_assign(b: &mut ::test::Bencher) {
    const SAMPLES: usize = 1000;

-    let mut rng = XorShiftRng::from_seed([0x5dbe6259, 0x8d313d76, 0x3237db17, 0xe5bc0654]);
+    let mut rng = XorShiftRng::from_seed([
+        0x59, 0x62, 0xbe, 0x5d, 0x76, 0x3d, 0x31, 0x8d, 0x17, 0xdb, 0x37, 0x32, 0x54, 0x06, 0xbc,
+        0xe5,
+    ]);

    let v: Vec<(Fq2, Fq2)> = (0..SAMPLES)
-        .map(|_| (Fq2::rand(&mut rng), Fq2::rand(&mut rng)))
+        .map(|_| (Fq2::random(&mut rng), Fq2::random(&mut rng)))
        .collect();

    let mut count = 0;
@ -64,9 +74,12 @@ fn bench_fq2_mul_assign(b: &mut ::test::Bencher) {
 fn bench_fq2_squaring(b: &mut ::test::Bencher) {
    const SAMPLES: usize = 1000;

-    let mut rng = XorShiftRng::from_seed([0x5dbe6259, 0x8d313d76, 0x3237db17, 0xe5bc0654]);
+    let mut rng = XorShiftRng::from_seed([
+        0x59, 0x62, 0xbe, 0x5d, 0x76, 0x3d, 0x31, 0x8d, 0x17, 0xdb, 0x37, 0x32, 0x54, 0x06, 0xbc,
+        0xe5,
+    ]);

-    let v: Vec<Fq2> = (0..SAMPLES).map(|_| Fq2::rand(&mut rng)).collect();
+    let v: Vec<Fq2> = (0..SAMPLES).map(|_| Fq2::random(&mut rng)).collect();

    let mut count = 0;
    b.iter(|| {
@ -81,9 +94,12 @@ fn bench_fq2_squaring(b: &mut ::test::Bencher) {
 fn bench_fq2_inverse(b: &mut ::test::Bencher) {
    const SAMPLES: usize = 1000;

-    let mut rng = XorShiftRng::from_seed([0x5dbe6259, 0x8d313d76, 0x3237db17, 0xe5bc0654]);
+    let mut rng = XorShiftRng::from_seed([
+        0x59, 0x62, 0xbe, 0x5d, 0x76, 0x3d, 0x31, 0x8d, 0x17, 0xdb, 0x37, 0x32, 0x54, 0x06, 0xbc,
+        0xe5,
+    ]);

-    let v: Vec<Fq2> = (0..SAMPLES).map(|_| Fq2::rand(&mut rng)).collect();
+    let v: Vec<Fq2> = (0..SAMPLES).map(|_| Fq2::random(&mut rng)).collect();

    let mut count = 0;
    b.iter(|| {
@ -97,9 +113,12 @@ fn bench_fq2_inverse(b: &mut ::test::Bencher) {
 fn bench_fq2_sqrt(b: &mut ::test::Bencher) {
    const SAMPLES: usize = 1000;

-    let mut rng = XorShiftRng::from_seed([0x5dbe6259, 0x8d313d76, 0x3237db17, 0xe5bc0654]);
+    let mut rng = XorShiftRng::from_seed([
+        0x59, 0x62, 0xbe, 0x5d, 0x76, 0x3d, 0x31, 0x8d, 0x17, 0xdb, 0x37, 0x32, 0x54, 0x06, 0xbc,
+        0xe5,
+    ]);

-    let v: Vec<Fq2> = (0..SAMPLES).map(|_| Fq2::rand(&mut rng)).collect();
+    let v: Vec<Fq2> = (0..SAMPLES).map(|_| Fq2::random(&mut rng)).collect();

    let mut count = 0;
    b.iter(|| {
--- a/pairing/benches/bls12_381/fr.rs
+++ b/pairing/benches/bls12_381/fr.rs
@ -1,4 +1,5 @@
-use rand::{Rand, SeedableRng, XorShiftRng};
+use rand_core::SeedableRng;
+use rand_xorshift::XorShiftRng;

 use ff::{Field, PrimeField, PrimeFieldRepr, SqrtField};
 use pairing::bls12_381::*;
@ -7,12 +8,15 @@ use pairing::bls12_381::*;
 fn bench_fr_repr_add_nocarry(b: &mut ::test::Bencher) {
    const SAMPLES: usize = 1000;

-    let mut rng = XorShiftRng::from_seed([0x5dbe6259, 0x8d313d76, 0x3237db17, 0xe5bc0654]);
+    let mut rng = XorShiftRng::from_seed([
+        0x59, 0x62, 0xbe, 0x5d, 0x76, 0x3d, 0x31, 0x8d, 0x17, 0xdb, 0x37, 0x32, 0x54, 0x06, 0xbc,
+        0xe5,
+    ]);

    let v: Vec<(FrRepr, FrRepr)> = (0..SAMPLES)
        .map(|_| {
-            let mut tmp1 = FrRepr::rand(&mut rng);
-            let mut tmp2 = FrRepr::rand(&mut rng);
+            let mut tmp1 = Fr::random(&mut rng).into_repr();
+            let mut tmp2 = Fr::random(&mut rng).into_repr();
            // Shave a few bits off to avoid overflow.
            for _ in 0..3 {
                tmp1.div2();
@ -35,11 +39,14 @@ fn bench_fr_repr_add_nocarry(b: &mut ::test::Bencher) {
 fn bench_fr_repr_sub_noborrow(b: &mut ::test::Bencher) {
    const SAMPLES: usize = 1000;

-    let mut rng = XorShiftRng::from_seed([0x5dbe6259, 0x8d313d76, 0x3237db17, 0xe5bc0654]);
+    let mut rng = XorShiftRng::from_seed([
+        0x59, 0x62, 0xbe, 0x5d, 0x76, 0x3d, 0x31, 0x8d, 0x17, 0xdb, 0x37, 0x32, 0x54, 0x06, 0xbc,
+        0xe5,
+    ]);

    let v: Vec<(FrRepr, FrRepr)> = (0..SAMPLES)
        .map(|_| {
-            let tmp1 = FrRepr::rand(&mut rng);
+            let tmp1 = Fr::random(&mut rng).into_repr();
            let mut tmp2 = tmp1;
            // Ensure tmp2 is smaller than tmp1.
            for _ in 0..10 {
@ -62,9 +69,14 @@ fn bench_fr_repr_sub_noborrow(b: &mut ::test::Bencher) {
 fn bench_fr_repr_num_bits(b: &mut ::test::Bencher) {
    const SAMPLES: usize = 1000;

-    let mut rng = XorShiftRng::from_seed([0x5dbe6259, 0x8d313d76, 0x3237db17, 0xe5bc0654]);
+    let mut rng = XorShiftRng::from_seed([
+        0x59, 0x62, 0xbe, 0x5d, 0x76, 0x3d, 0x31, 0x8d, 0x17, 0xdb, 0x37, 0x32, 0x54, 0x06, 0xbc,
+        0xe5,
+    ]);

-    let v: Vec<FrRepr> = (0..SAMPLES).map(|_| FrRepr::rand(&mut rng)).collect();
+    let v: Vec<FrRepr> = (0..SAMPLES)
+        .map(|_| Fr::random(&mut rng).into_repr())
+        .collect();

    let mut count = 0;
    b.iter(|| {
@ -78,9 +90,14 @@ fn bench_fr_repr_num_bits(b: &mut ::test::Bencher) {
 fn bench_fr_repr_mul2(b: &mut ::test::Bencher) {
    const SAMPLES: usize = 1000;

-    let mut rng = XorShiftRng::from_seed([0x5dbe6259, 0x8d313d76, 0x3237db17, 0xe5bc0654]);
+    let mut rng = XorShiftRng::from_seed([
+        0x59, 0x62, 0xbe, 0x5d, 0x76, 0x3d, 0x31, 0x8d, 0x17, 0xdb, 0x37, 0x32, 0x54, 0x06, 0xbc,
+        0xe5,
+    ]);

-    let v: Vec<FrRepr> = (0..SAMPLES).map(|_| FrRepr::rand(&mut rng)).collect();
+    let v: Vec<FrRepr> = (0..SAMPLES)
+        .map(|_| Fr::random(&mut rng).into_repr())
+        .collect();

    let mut count = 0;
    b.iter(|| {
@ -95,9 +112,14 @@ fn bench_fr_repr_mul2(b: &mut ::test::Bencher) {
 fn bench_fr_repr_div2(b: &mut ::test::Bencher) {
    const SAMPLES: usize = 1000;

-    let mut rng = XorShiftRng::from_seed([0x5dbe6259, 0x8d313d76, 0x3237db17, 0xe5bc0654]);
+    let mut rng = XorShiftRng::from_seed([
+        0x59, 0x62, 0xbe, 0x5d, 0x76, 0x3d, 0x31, 0x8d, 0x17, 0xdb, 0x37, 0x32, 0x54, 0x06, 0xbc,
+        0xe5,
+    ]);

-    let v: Vec<FrRepr> = (0..SAMPLES).map(|_| FrRepr::rand(&mut rng)).collect();
+    let v: Vec<FrRepr> = (0..SAMPLES)
+        .map(|_| Fr::random(&mut rng).into_repr())
+        .collect();

    let mut count = 0;
    b.iter(|| {
@ -112,10 +134,13 @@ fn bench_fr_repr_div2(b: &mut ::test::Bencher) {
 fn bench_fr_add_assign(b: &mut ::test::Bencher) {
    const SAMPLES: usize = 1000;

-    let mut rng = XorShiftRng::from_seed([0x5dbe6259, 0x8d313d76, 0x3237db17, 0xe5bc0654]);
+    let mut rng = XorShiftRng::from_seed([
+        0x59, 0x62, 0xbe, 0x5d, 0x76, 0x3d, 0x31, 0x8d, 0x17, 0xdb, 0x37, 0x32, 0x54, 0x06, 0xbc,
+        0xe5,
+    ]);

    let v: Vec<(Fr, Fr)> = (0..SAMPLES)
-        .map(|_| (Fr::rand(&mut rng), Fr::rand(&mut rng)))
+        .map(|_| (Fr::random(&mut rng), Fr::random(&mut rng)))
        .collect();

    let mut count = 0;
@ -131,10 +156,13 @@ fn bench_fr_add_assign(b: &mut ::test::Bencher) {
 fn bench_fr_sub_assign(b: &mut ::test::Bencher) {
    const SAMPLES: usize = 1000;

-    let mut rng = XorShiftRng::from_seed([0x5dbe6259, 0x8d313d76, 0x3237db17, 0xe5bc0654]);
+    let mut rng = XorShiftRng::from_seed([
+        0x59, 0x62, 0xbe, 0x5d, 0x76, 0x3d, 0x31, 0x8d, 0x17, 0xdb, 0x37, 0x32, 0x54, 0x06, 0xbc,
+        0xe5,
+    ]);

    let v: Vec<(Fr, Fr)> = (0..SAMPLES)
-        .map(|_| (Fr::rand(&mut rng), Fr::rand(&mut rng)))
+        .map(|_| (Fr::random(&mut rng), Fr::random(&mut rng)))
        .collect();

    let mut count = 0;
@ -150,10 +178,13 @@ fn bench_fr_sub_assign(b: &mut ::test::Bencher) {
 fn bench_fr_mul_assign(b: &mut ::test::Bencher) {
    const SAMPLES: usize = 1000;

-    let mut rng = XorShiftRng::from_seed([0x5dbe6259, 0x8d313d76, 0x3237db17, 0xe5bc0654]);
+    let mut rng = XorShiftRng::from_seed([
+        0x59, 0x62, 0xbe, 0x5d, 0x76, 0x3d, 0x31, 0x8d, 0x17, 0xdb, 0x37, 0x32, 0x54, 0x06, 0xbc,
+        0xe5,
+    ]);

    let v: Vec<(Fr, Fr)> = (0..SAMPLES)
-        .map(|_| (Fr::rand(&mut rng), Fr::rand(&mut rng)))
+        .map(|_| (Fr::random(&mut rng), Fr::random(&mut rng)))
        .collect();

    let mut count = 0;
@ -169,9 +200,12 @@ fn bench_fr_mul_assign(b: &mut ::test::Bencher) {
 fn bench_fr_square(b: &mut ::test::Bencher) {
    const SAMPLES: usize = 1000;

-    let mut rng = XorShiftRng::from_seed([0x5dbe6259, 0x8d313d76, 0x3237db17, 0xe5bc0654]);
+    let mut rng = XorShiftRng::from_seed([
+        0x59, 0x62, 0xbe, 0x5d, 0x76, 0x3d, 0x31, 0x8d, 0x17, 0xdb, 0x37, 0x32, 0x54, 0x06, 0xbc,
+        0xe5,
+    ]);

-    let v: Vec<Fr> = (0..SAMPLES).map(|_| Fr::rand(&mut rng)).collect();
+    let v: Vec<Fr> = (0..SAMPLES).map(|_| Fr::random(&mut rng)).collect();

    let mut count = 0;
    b.iter(|| {
@ -186,9 +220,12 @@ fn bench_fr_square(b: &mut ::test::Bencher) {
 fn bench_fr_inverse(b: &mut ::test::Bencher) {
    const SAMPLES: usize = 1000;

-    let mut rng = XorShiftRng::from_seed([0x5dbe6259, 0x8d313d76, 0x3237db17, 0xe5bc0654]);
+    let mut rng = XorShiftRng::from_seed([
+        0x59, 0x62, 0xbe, 0x5d, 0x76, 0x3d, 0x31, 0x8d, 0x17, 0xdb, 0x37, 0x32, 0x54, 0x06, 0xbc,
+        0xe5,
+    ]);

-    let v: Vec<Fr> = (0..SAMPLES).map(|_| Fr::rand(&mut rng)).collect();
+    let v: Vec<Fr> = (0..SAMPLES).map(|_| Fr::random(&mut rng)).collect();

    let mut count = 0;
    b.iter(|| {
@ -201,9 +238,12 @@ fn bench_fr_inverse(b: &mut ::test::Bencher) {
 fn bench_fr_negate(b: &mut ::test::Bencher) {
    const SAMPLES: usize = 1000;

-    let mut rng = XorShiftRng::from_seed([0x5dbe6259, 0x8d313d76, 0x3237db17, 0xe5bc0654]);
+    let mut rng = XorShiftRng::from_seed([
+        0x59, 0x62, 0xbe, 0x5d, 0x76, 0x3d, 0x31, 0x8d, 0x17, 0xdb, 0x37, 0x32, 0x54, 0x06, 0xbc,
+        0xe5,
+    ]);

-    let v: Vec<Fr> = (0..SAMPLES).map(|_| Fr::rand(&mut rng)).collect();
+    let v: Vec<Fr> = (0..SAMPLES).map(|_| Fr::random(&mut rng)).collect();

    let mut count = 0;
    b.iter(|| {
@ -218,11 +258,14 @@ fn bench_fr_negate(b: &mut ::test::Bencher) {
 fn bench_fr_sqrt(b: &mut ::test::Bencher) {
    const SAMPLES: usize = 1000;

-    let mut rng = XorShiftRng::from_seed([0x5dbe6259, 0x8d313d76, 0x3237db17, 0xe5bc0654]);
+    let mut rng = XorShiftRng::from_seed([
+        0x59, 0x62, 0xbe, 0x5d, 0x76, 0x3d, 0x31, 0x8d, 0x17, 0xdb, 0x37, 0x32, 0x54, 0x06, 0xbc,
+        0xe5,
+    ]);

    let v: Vec<Fr> = (0..SAMPLES)
        .map(|_| {
-            let mut tmp = Fr::rand(&mut rng);
+            let mut tmp = Fr::random(&mut rng);
            tmp.square();
            tmp
        })
@ -239,9 +282,12 @@ fn bench_fr_sqrt(b: &mut ::test::Bencher) {
 fn bench_fr_into_repr(b: &mut ::test::Bencher) {
    const SAMPLES: usize = 1000;

-    let mut rng = XorShiftRng::from_seed([0x5dbe6259, 0x8d313d76, 0x3237db17, 0xe5bc0654]);
+    let mut rng = XorShiftRng::from_seed([
+        0x59, 0x62, 0xbe, 0x5d, 0x76, 0x3d, 0x31, 0x8d, 0x17, 0xdb, 0x37, 0x32, 0x54, 0x06, 0xbc,
+        0xe5,
+    ]);

-    let v: Vec<Fr> = (0..SAMPLES).map(|_| Fr::rand(&mut rng)).collect();
+    let v: Vec<Fr> = (0..SAMPLES).map(|_| Fr::random(&mut rng)).collect();

    let mut count = 0;
    b.iter(|| {
@ -254,10 +300,13 @@ fn bench_fr_into_repr(b: &mut ::test::Bencher) {
 fn bench_fr_from_repr(b: &mut ::test::Bencher) {
    const SAMPLES: usize = 1000;

-    let mut rng = XorShiftRng::from_seed([0x5dbe6259, 0x8d313d76, 0x3237db17, 0xe5bc0654]);
+    let mut rng = XorShiftRng::from_seed([
+        0x59, 0x62, 0xbe, 0x5d, 0x76, 0x3d, 0x31, 0x8d, 0x17, 0xdb, 0x37, 0x32, 0x54, 0x06, 0xbc,
+        0xe5,
+    ]);

    let v: Vec<FrRepr> = (0..SAMPLES)
-        .map(|_| Fr::rand(&mut rng).into_repr())
+        .map(|_| Fr::random(&mut rng).into_repr())
        .collect();

    let mut count = 0;
--- a/pairing/benches/bls12_381/mod.rs
+++ b/pairing/benches/bls12_381/mod.rs
@ -4,8 +4,10 @@ mod fq12;
 mod fq2;
 mod fr;

-use rand::{Rand, SeedableRng, XorShiftRng};
+use rand_core::SeedableRng;
+use rand_xorshift::XorShiftRng;

+use group::CurveProjective;
 use pairing::bls12_381::*;
 use pairing::{Engine, PairingCurveAffine};

@ -13,9 +15,12 @@ use pairing::{Engine, PairingCurveAffine};
 fn bench_pairing_g1_preparation(b: &mut ::test::Bencher) {
    const SAMPLES: usize = 1000;

-    let mut rng = XorShiftRng::from_seed([0x5dbe6259, 0x8d313d76, 0x3237db17, 0xe5bc0654]);
+    let mut rng = XorShiftRng::from_seed([
+        0x59, 0x62, 0xbe, 0x5d, 0x76, 0x3d, 0x31, 0x8d, 0x17, 0xdb, 0x37, 0x32, 0x54, 0x06, 0xbc,
+        0xe5,
+    ]);

-    let v: Vec<G1> = (0..SAMPLES).map(|_| G1::rand(&mut rng)).collect();
+    let v: Vec<G1> = (0..SAMPLES).map(|_| G1::random(&mut rng)).collect();

    let mut count = 0;
    b.iter(|| {
@ -29,9 +34,12 @@ fn bench_pairing_g1_preparation(b: &mut ::test::Bencher) {
 fn bench_pairing_g2_preparation(b: &mut ::test::Bencher) {
    const SAMPLES: usize = 1000;

-    let mut rng = XorShiftRng::from_seed([0x5dbe6259, 0x8d313d76, 0x3237db17, 0xe5bc0654]);
+    let mut rng = XorShiftRng::from_seed([
+        0x59, 0x62, 0xbe, 0x5d, 0x76, 0x3d, 0x31, 0x8d, 0x17, 0xdb, 0x37, 0x32, 0x54, 0x06, 0xbc,
+        0xe5,
+    ]);

-    let v: Vec<G2> = (0..SAMPLES).map(|_| G2::rand(&mut rng)).collect();
+    let v: Vec<G2> = (0..SAMPLES).map(|_| G2::random(&mut rng)).collect();

    let mut count = 0;
    b.iter(|| {
@ -45,13 +53,16 @@ fn bench_pairing_g2_preparation(b: &mut ::test::Bencher) {
 fn bench_pairing_miller_loop(b: &mut ::test::Bencher) {
    const SAMPLES: usize = 1000;

-    let mut rng = XorShiftRng::from_seed([0x5dbe6259, 0x8d313d76, 0x3237db17, 0xe5bc0654]);
+    let mut rng = XorShiftRng::from_seed([
+        0x59, 0x62, 0xbe, 0x5d, 0x76, 0x3d, 0x31, 0x8d, 0x17, 0xdb, 0x37, 0x32, 0x54, 0x06, 0xbc,
+        0xe5,
+    ]);

    let v: Vec<(G1Prepared, G2Prepared)> = (0..SAMPLES)
        .map(|_| {
            (
-                G1Affine::from(G1::rand(&mut rng)).prepare(),
-                G2Affine::from(G2::rand(&mut rng)).prepare(),
+                G1Affine::from(G1::random(&mut rng)).prepare(),
+                G2Affine::from(G2::random(&mut rng)).prepare(),
            )
        })
        .collect();
@ -68,13 +79,16 @@ fn bench_pairing_miller_loop(b: &mut ::test::Bencher) {
 fn bench_pairing_final_exponentiation(b: &mut ::test::Bencher) {
    const SAMPLES: usize = 1000;

-    let mut rng = XorShiftRng::from_seed([0x5dbe6259, 0x8d313d76, 0x3237db17, 0xe5bc0654]);
+    let mut rng = XorShiftRng::from_seed([
+        0x59, 0x62, 0xbe, 0x5d, 0x76, 0x3d, 0x31, 0x8d, 0x17, 0xdb, 0x37, 0x32, 0x54, 0x06, 0xbc,
+        0xe5,
+    ]);

    let v: Vec<Fq12> = (0..SAMPLES)
        .map(|_| {
            (
-                G1Affine::from(G1::rand(&mut rng)).prepare(),
-                G2Affine::from(G2::rand(&mut rng)).prepare(),
+                G1Affine::from(G1::random(&mut rng)).prepare(),
+                G2Affine::from(G2::random(&mut rng)).prepare(),
            )
        })
        .map(|(ref p, ref q)| Bls12::miller_loop(&[(p, q)]))
@ -92,10 +106,13 @@ fn bench_pairing_final_exponentiation(b: &mut ::test::Bencher) {
 fn bench_pairing_full(b: &mut ::test::Bencher) {
    const SAMPLES: usize = 1000;

-    let mut rng = XorShiftRng::from_seed([0x5dbe6259, 0x8d313d76, 0x3237db17, 0xe5bc0654]);
+    let mut rng = XorShiftRng::from_seed([
+        0x59, 0x62, 0xbe, 0x5d, 0x76, 0x3d, 0x31, 0x8d, 0x17, 0xdb, 0x37, 0x32, 0x54, 0x06, 0xbc,
+        0xe5,
+    ]);

    let v: Vec<(G1, G2)> = (0..SAMPLES)
-        .map(|_| (G1::rand(&mut rng), G2::rand(&mut rng)))
+        .map(|_| (G1::random(&mut rng), G2::random(&mut rng)))
        .collect();

    let mut count = 0;
--- a/pairing/benches/pairing_benches.rs
+++ b/pairing/benches/pairing_benches.rs
@ -3,7 +3,8 @@
 extern crate ff;
 extern crate group;
 extern crate pairing;
-extern crate rand;
+extern crate rand_core;
+extern crate rand_xorshift;
 extern crate test;

 mod bls12_381;
--- a/zcash_client_backend/Cargo.toml
+++ b/zcash_client_backend/Cargo.toml
@ -1,17 +1,24 @@
 [package]
 name = "zcash_client_backend"
-version = "0.0.0"
+description = "APIs for creating shielded Zcash light clients"
+version = "0.1.0"
 authors = [
    "Jack Grigg <jack@z.cash>",
 ]
+homepage = "https://github.com/zcash/librustzcash"
+repository = "https://github.com/zcash/librustzcash"
 readme = "README.md"
+license = "MIT OR Apache-2.0"
 edition = "2018"

 [dependencies]
 bech32 = "0.7"
-pairing = { path = "../pairing" }
-zcash_primitives = { path = "../zcash_primitives" }
+pairing = { version = "0.15.0", path = "../pairing" }
+zcash_primitives = { version = "0.1.0", path = "../zcash_primitives" }

 [dev-dependencies]
 rand_core = "0.5"
 rand_xorshift = "0.2"
+
+[badges]
+maintenance = { status = "actively-developed" }
--- a/zcash_primitives/Cargo.toml
+++ b/zcash_primitives/Cargo.toml
@ -1,10 +1,14 @@
 [package]
 name = "zcash_primitives"
-version = "0.0.0"
+description = "Rust implementations of the Zcash primitives"
+version = "0.1.0"
 authors = [
    "Jack Grigg <jack@z.cash>",
 ]
+homepage = "https://github.com/zcash/librustzcash"
+repository = "https://github.com/zcash/librustzcash"
 readme = "README.md"
+license = "MIT OR Apache-2.0"
 edition = "2018"

 [dependencies]
@ -13,12 +17,12 @@ blake2b_simd = "0.5"
 blake2s_simd = "0.5"
 byteorder = "1"
 crypto_api_chachapoly = "0.2.1"
-ff = { path = "../ff" }
+ff = { version = "0.5.0", path = "../ff" }
 fpe = "0.2"
 hex = "0.3"
 lazy_static = "1"
 log = "0.4"
-pairing = { path = "../pairing" }
+pairing = { version = "0.15.0", path = "../pairing" }
 rand = "0.7"
 rand_core = "0.5.1"
 sha2 = "0.8"
@ -26,3 +30,6 @@ sha2 = "0.8"
 [dev-dependencies]
 hex-literal = "0.2"
 rand_xorshift = "0.2"
+
+[badges]
+maintenance = { status = "actively-developed" }
--- a/zcash_proofs/Cargo.toml
+++ b/zcash_proofs/Cargo.toml
@ -1,21 +1,25 @@
 [package]
 name = "zcash_proofs"
-version = "0.0.0"
+description = "Zcash zk-SNARK circuits and proving APIs"
+version = "0.1.0"
 authors = [
    "Jack Grigg <jack@z.cash>",
 ]
+homepage = "https://github.com/zcash/librustzcash"
+repository = "https://github.com/zcash/librustzcash"
 readme = "README.md"
+license = "MIT OR Apache-2.0"
 edition = "2018"

 [dependencies]
-bellman = { path = "../bellman" }
+bellman = { version = "0.2.0", path = "../bellman" }
 blake2b_simd = "0.5"
 byteorder = "1"
 directories = { version = "1", optional = true }
-ff = { path = "../ff" }
-pairing = { path = "../pairing" }
+ff = { version = "0.5.0", path = "../ff" }
+pairing = { version = "0.15.0", path = "../pairing" }
 rand_core = "0.5.1"
-zcash_primitives = { path = "../zcash_primitives" }
+zcash_primitives = { version = "0.1.0", path = "../zcash_primitives" }

 [dev-dependencies]
 rand_xorshift = "0.2"
@ -23,3 +27,6 @@ rand_xorshift = "0.2"
 [features]
 default = ["local-prover"]
 local-prover = ["directories"]
+
+[badges]
+maintenance = { status = "actively-developed" }