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Remove gamma from the groth16 snark #1383

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Jan 3, 2019
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@imeckler imeckler commented Jan 2, 2019

This PR removes gamma from the Groth16 implementation (or put another way, it sets gamma equal to one). The benefit is that it makes the verification key one G2 element smaller, which is a big win from the point of view of proof composition.

I opened a PR on libsnark here so hopefully that eventually makes it in upstream, but I want to get this through here first.

@imeckler imeckler merged commit cdcbc8d into master Jan 3, 2019
@imeckler imeckler deleted the fix/groth16-remove-gamma branch January 3, 2019 01:21
imeckler added a commit that referenced this pull request Jan 9, 2019
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