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Reformat addition chain window building code to better show pattern.

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Make the 2 digit, `_10`, the first argument to more closely match the
Haskell code in the source article. Align the code into columns to
further clarify the patterns.
This commit is contained in:
Brian Smith 2017-09-04 09:19:58 -10:00
parent 91a7c641c2
commit 028140bb33
1 changed files with 10 additions and 10 deletions
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20
src/scalar.rs
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@ -571,17 +571,17 @@ impl UnpackedScalar {
// https://briansmith.org/ecc-inversion-addition-chains-01#curve25519_scalar_inversion
// as it was published on 2017-09-03.
let _1 = *self;
let _10 = _1.square();
let _11 = UnpackedScalar::multiply_add(&_10, &_1, &UnpackedScalar::zero());
let _101 = UnpackedScalar::multiply_add(&_11, &_10, &UnpackedScalar::zero());
let _111 = UnpackedScalar::multiply_add(&_101, &_10, &UnpackedScalar::zero());
let _1001 = UnpackedScalar::multiply_add(&_111, &_10, &UnpackedScalar::zero());
let _1011 = UnpackedScalar::multiply_add(&_1001, &_10, &UnpackedScalar::zero());
let _1101 = UnpackedScalar::multiply_add(&_1011, &_10, &UnpackedScalar::zero());
let _1111 = UnpackedScalar::multiply_add(&_1101, &_10, &UnpackedScalar::zero());
let _1 = *self;
let _10 = _1.square();
let _11 = UnpackedScalar::multiply_add(&_10, &_1, &UnpackedScalar::zero());
let _101 = UnpackedScalar::multiply_add(&_10, &_11, &UnpackedScalar::zero());
let _111 = UnpackedScalar::multiply_add(&_10, &_101, &UnpackedScalar::zero());
let _1001 = UnpackedScalar::multiply_add(&_10, &_111, &UnpackedScalar::zero());
let _1011 = UnpackedScalar::multiply_add(&_10, &_1001, &UnpackedScalar::zero());
let _1101 = UnpackedScalar::multiply_add(&_10, &_1011, &UnpackedScalar::zero());
let _1111 = UnpackedScalar::multiply_add(&_10, &_1101, &UnpackedScalar::zero());
// 0b10000
// _10000
let mut y = UnpackedScalar::multiply_add(&_1111, &_1, &UnpackedScalar::zero());
#[inline]