Upgrade rand to 0.7 (#33)

r1cs-std/Cargo.toml

@@ -28,4 +28,5 @@ derivative = "1"
 radix_trie = "0.1"
 
 [dev-dependencies]
-rand = { version = "0.4" }
+rand = { version = "0.7" }
+rand_xorshift = { version = "0.2" }

r1cs-std/src/bits/boolean.rs

@@ -739,7 +739,9 @@ mod test {
         prelude::*
     };
     use algebra::{fields::bls12_381::Fr, BitIterator, Field, PrimeField};
-    use rand::{Rand, SeedableRng, XorShiftRng};
+    use algebra::UniformRand;
+use rand::SeedableRng;
+use rand_xorshift::XorShiftRng;
     use r1cs_core::ConstraintSystem;
     use std::str::FromStr;
 
@@ -1736,7 +1738,7 @@ mod test {
             assert!(!cs.is_satisfied());
         }
 
-        let mut rng = XorShiftRng::from_seed([0x3dbe6259, 0x8d313d76, 0x3237db17, 0xe5bc0654]);
+        let mut rng = XorShiftRng::seed_from_u64(1231275789u64);
 
         for _ in 0..1000 {
             let r = Fr::rand(&mut rng);

r1cs-std/src/bits/uint32.rs

@@ -340,12 +340,13 @@ mod test {
     use super::UInt32;
     use crate::{bits::boolean::Boolean, test_constraint_system::TestConstraintSystem};
     use algebra::fields::{bls12_381::Fr, Field};
-    use rand::{Rng, SeedableRng, XorShiftRng};
+    use rand::{Rng, SeedableRng};
+    use rand_xorshift::XorShiftRng;
     use r1cs_core::ConstraintSystem;
 
     #[test]
     fn test_uint32_from_bits() {
-        let mut rng = XorShiftRng::from_seed([0x5dbe6259, 0x8d313d76, 0x3237db17, 0xe5bc0653]);
+        let mut rng = XorShiftRng::seed_from_u64(1231275789u64);
 
         for _ in 0..1000 {
             let v = (0..32)
@@ -377,7 +378,7 @@ mod test {
 
     #[test]
     fn test_uint32_xor() {
-        let mut rng = XorShiftRng::from_seed([0x5dbe6259, 0x8d313d76, 0x3237db17, 0xe5bc0653]);
+        let mut rng = XorShiftRng::seed_from_u64(1231275789u64);
 
         for _ in 0..1000 {
             let mut cs = TestConstraintSystem::<Fr>::new();
@@ -419,7 +420,7 @@ mod test {
 
     #[test]
     fn test_uint32_addmany_constants() {
-        let mut rng = XorShiftRng::from_seed([0x5dbe6259, 0x8d313d76, 0x3237db17, 0xe5bc0654]);
+        let mut rng = XorShiftRng::seed_from_u64(1231275789u64);
 
         for _ in 0..1000 {
             let mut cs = TestConstraintSystem::<Fr>::new();
@@ -454,7 +455,7 @@ mod test {
 
     #[test]
     fn test_uint32_addmany() {
-        let mut rng = XorShiftRng::from_seed([0x5dbe6259, 0x8d313d76, 0x3237db17, 0xe5bc0654]);
+        let mut rng = XorShiftRng::seed_from_u64(1231275789u64);
 
         for _ in 0..1000 {
             let mut cs = TestConstraintSystem::<Fr>::new();
@@ -505,7 +506,7 @@ mod test {
 
     #[test]
     fn test_uint32_rotr() {
-        let mut rng = XorShiftRng::from_seed([0x5dbe6259, 0x8d313d76, 0x3237db17, 0xe5bc0654]);
+        let mut rng = XorShiftRng::seed_from_u64(1231275789u64);
 
         let mut num = rng.gen();
 

r1cs-std/src/bits/uint8.rs

@@ -294,7 +294,8 @@ mod test {
     use super::UInt8;
     use crate::{prelude::*, test_constraint_system::TestConstraintSystem};
     use algebra::fields::bls12_381::Fr;
-    use rand::{Rng, SeedableRng, XorShiftRng};
+    use rand::{Rng, SeedableRng};
+    use rand_xorshift::XorShiftRng;
     use r1cs_core::ConstraintSystem;
 
     #[test]
@@ -323,7 +324,7 @@ mod test {
 
     #[test]
     fn test_uint8_from_bits() {
-        let mut rng = XorShiftRng::from_seed([0x5dbe6259, 0x8d313d76, 0x3237db17, 0xe5bc0653]);
+        let mut rng = XorShiftRng::seed_from_u64(1231275789u64);
 
         for _ in 0..1000 {
             let v = (0..8)
@@ -355,7 +356,7 @@ mod test {
 
     #[test]
     fn test_uint8_xor() {
-        let mut rng = XorShiftRng::from_seed([0x5dbe6259, 0x8d313d76, 0x3237db17, 0xe5bc0653]);
+        let mut rng = XorShiftRng::seed_from_u64(1231275789u64);
 
         for _ in 0..1000 {
             let mut cs = TestConstraintSystem::<Fr>::new();

r1cs-std/src/fields/mod.rs

@@ -213,10 +213,11 @@ pub trait FieldGadget:
 
 #[cfg(test)]
 mod test {
-    use rand::{self, thread_rng, Rand, SeedableRng, XorShiftRng};
+    use rand::{self, thread_rng, SeedableRng};
+    use rand_xorshift::XorShiftRng;
 
     use crate::{prelude::*, test_constraint_system::TestConstraintSystem};
-    use algebra::{fields::Field, BitIterator};
+    use algebra::{UniformRand, Field, BitIterator};
     use r1cs_core::ConstraintSystem;
 
     fn field_test<FE: Field, ConstraintF: Field, F: FieldGadget<FE, ConstraintF>, CS: ConstraintSystem<ConstraintF>>(
@@ -388,7 +389,7 @@ mod test {
         // a * a * a = a^3
         let mut constants = [FE::zero(); 4];
         for c in &mut constants {
-            *c = rand::random();
+            *c = UniformRand::rand(&mut thread_rng());
             println!("Current c[i]: {:?}", c);
         }
         let bits = [Boolean::constant(false), Boolean::constant(true)];
@@ -396,7 +397,7 @@ mod test {
             F::two_bit_lookup(cs.ns(|| "Lookup"), &bits, constants.as_ref()).unwrap();
         assert_eq!(lookup_result.get_value().unwrap(), constants[2]);
 
-        let negone: FE = rand::random();
+        let negone: FE = UniformRand::rand(&mut thread_rng());
 
         let n = F::alloc(&mut cs.ns(|| "alloc new var"), || Ok(negone)).unwrap();
         let _ = n.to_bytes(&mut cs.ns(|| "ToBytes")).unwrap();
@@ -412,7 +413,7 @@ mod test {
         mut cs: CS,
         maxpower: usize,
     ) {
-        let mut rng = XorShiftRng::from_seed([0x5dbe6259, 0x8d313d76, 0x3237db17, 0xe5bc0654]);
+        let mut rng = XorShiftRng::seed_from_u64(1231275789u64);
         for i in 0..(maxpower + 1) {
             let mut a = FE::rand(&mut rng);
             let mut a_gadget = F::alloc(cs.ns(|| format!("a_gadget_{:?}", i)), || Ok(a)).unwrap();
@@ -432,7 +433,7 @@ mod test {
 
         let mut cs = TestConstraintSystem::<Fq>::new();
 
-        let mut rng = XorShiftRng::from_seed([0x5dbe6259, 0x8d313d76, 0x3237db17, 0xe5bc0653]);
+        let mut rng = XorShiftRng::seed_from_u64(1231275789u64);
 
         let a = FqGadget::alloc(&mut cs.ns(|| "generate_a"), || Ok(Fq::rand(&mut rng))).unwrap();
         let b = FqGadget::alloc(&mut cs.ns(|| "generate_b"), || Ok(Fq::rand(&mut rng))).unwrap();

r1cs-std/src/groups/curves/short_weierstrass/bls12/bls12_377.rs

@@ -96,8 +96,10 @@ mod test {
 
     #[test]
     fn bls12_g1_gadget_test() {
-        use rand::{Rand, SeedableRng, XorShiftRng};
-        let mut rng = XorShiftRng::from_seed([0x5dbe6259, 0x8d313d76, 0x3237db17, 0xe5bc0654]);
+        use algebra::UniformRand;
+        use rand::SeedableRng;
+        use rand_xorshift::XorShiftRng;
+        let mut rng = XorShiftRng::seed_from_u64(1231275789u64);
 
         let mut cs = TestConstraintSystem::<Fq>::new();
 

r1cs-std/src/groups/curves/twisted_edwards/test.rs

@@ -1,10 +1,10 @@
-use rand;
+use rand::thread_rng;
 
 use crate::{prelude::*, groups::test::group_test};
 
 use algebra::{
     curves::{models::TEModelParameters, twisted_edwards_extended::GroupAffine as TEAffine},
-    BitIterator, Group, PrimeField, Field,
+    BitIterator, Group, PrimeField, Field, UniformRand,
 };
 
 use r1cs_core::ConstraintSystem;
@@ -16,8 +16,8 @@ where
     GG: GroupGadget<TEAffine<P>, ConstraintF, Value = TEAffine<P>>,
     CS: ConstraintSystem<ConstraintF>,
 {
-    let a: TEAffine<P> = rand::random();
-    let b: TEAffine<P> = rand::random();
+    let a: TEAffine<P> = UniformRand::rand(&mut thread_rng());
+    let b: TEAffine<P> = UniformRand::rand(&mut thread_rng());
     let gadget_a = GG::alloc(&mut cs.ns(|| "a"), || Ok(a)).unwrap();
     let gadget_b = GG::alloc(&mut cs.ns(|| "b"), || Ok(b)).unwrap();
     assert_eq!(gadget_a.get_value().unwrap(), a);
@@ -29,7 +29,7 @@ where
     );
 
     // Check mul_bits
-    let scalar: <TEAffine<P> as Group>::ScalarField = rand::random();
+    let scalar: <TEAffine<P> as Group>::ScalarField = UniformRand::rand(&mut thread_rng());
     let native_result = a.mul(&scalar);
 
     let mut scalar: Vec<bool> = BitIterator::new(scalar.into_repr()).collect();