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ff: PrimeField: BitAnd<u64, Output = u64> + Shr<u32, Output = Self>

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This commit is contained in:
Jack Grigg
2020-04-22 10:45:51 +12:00
parent 1fdca393bb
commit 08500ee712
7 changed files with 348 additions and 17 deletions
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61
pairing/src/bls12_381/fr.rs
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@@ -669,6 +669,67 @@ fn test_fr_mul_assign() {
}
}
#[test]
fn test_fr_shr() {
let mut a = Fr::from_repr(FrRepr([
0xb33fbaec482a283f,
0x997de0d3a88cb3df,
0x9af62d2a9a0e5525,
0x36003ab08de70da1,
]))
.unwrap();
a = a >> 0;
assert_eq!(
a.into_repr(),
FrRepr([
0xb33fbaec482a283f,
0x997de0d3a88cb3df,
0x9af62d2a9a0e5525,
0x36003ab08de70da1,
])
);
a = a >> 1;
assert_eq!(
a.into_repr(),
FrRepr([
0xd99fdd762415141f,
0xccbef069d44659ef,
0xcd7b16954d072a92,
0x1b001d5846f386d0,
])
);
a = a >> 50;
assert_eq!(
a.into_repr(),
FrRepr([
0xbc1a7511967bf667,
0xc5a55341caa4b32f,
0x075611bce1b4335e,
0x00000000000006c0,
])
);
a = a >> 130;
assert_eq!(
a.into_repr(),
FrRepr([
0x01d5846f386d0cd7,
0x00000000000001b0,
0x0000000000000000,
0x0000000000000000,
])
);
a = a >> 64;
assert_eq!(
a.into_repr(),
FrRepr([
0x00000000000001b0,
0x0000000000000000,
0x0000000000000000,
0x0000000000000000,
])
);
}
#[test]
fn test_fr_squaring() {
let a = Fr(FrRepr([