cc9dd20536
chip::mul.rs: Implement variable-base scalar mul instruction.
...
This uses the complete addition instruction internally. The module
is split up into mul::incomplete.rs and mul::complete.rs, where
mul::incomplete handles the incomplete additions used in the
starting rounds of the variable-base scalar mul algorithm, and
mul::complete handles the complete additions in the final rounds.
Incomplete additions are broken into "hi" and "lo" halves and
processed on the same rows across different columns. This is an
optimization to make full use of the advice columns in this
instruction.
2021-07-07 23:10:59 +08:00
64a2b02d42
ecc::chip.rs: Witness scalar for variable-base scalar mul
2021-07-07 23:10:59 +08:00
0f60a81485
ecc::chip.rs: Add EccScalarFixed, EccScalarFixedShort structs
2021-07-07 23:10:59 +08:00
83eddd8857
ecc::chip.rs: Add Point::from_coordinates_unchecked() API
...
Co-authored-by: Jack Grigg <jack@electriccoin.co>
2021-06-19 18:14:22 +08:00
7341996d2c
gadget::ecc.rs: Add EccInstructions::constrain_equal() instruction.
...
This allows us to constrain two points to be equal in value at the
gadget level.
Co-authored-by: Jack Grigg <jack@electriccoin.co>
2021-06-13 21:26:30 +08:00
e259bb3846
ecc::chip.rs: Use concrete pallas::Affine for Chip impl.
...
The EccInstructions trait is still generic over C: CurveAffine;
however, the EccChip implementation is specific to the pasta
curves.
2021-06-12 20:25:09 +08:00
aec7a7f850
ecc::chip.rs: Stub out scalar-mul-related structs and types.
...
These will be updated or restored in #111 .
2021-06-12 20:24:14 +08:00
aff56e6763
ecc::chip.rs: Make EccPoint.x, EccPoint.y private fields
...
Also add public getters x() and y().
Co-authored-by: Jack Grigg <jack@electriccoin.co>
Co-authored-by: Daira Hopwood <daira@jacaranda.org>
2021-06-12 12:41:27 +08:00
6491ea90dd
ecc::chip.rs: Bound EccConfig on <C: CurveAffine>.
2021-06-12 12:41:27 +08:00
e802e2917a
chip::add.rs: Implement complete addition instruction.
2021-06-12 12:41:27 +08:00
7dc11b95d2
chip::add_incomplete.rs: Implement add_incomplete() instruction
2021-06-12 12:41:27 +08:00
7eb86eb0c2
chip::witness_point.rs: Implement witness_point() instruction.
2021-06-12 12:41:27 +08:00
6627b2258f
ecc::chip.rs: Add ECC chip.
...
Implement witness_scalar_var() and extract_p() instructions inline.
2021-06-12 12:41:27 +08:00
therealyingtong