Cultivating Sapling: Faster zk-SNARKs
https://z.cash/blog/cultivating-sapling-faster-zksnarks.html [z.cash]
2017-09-14 04:51
We have designed an elliptic curve called Jubjub which is efficient to perform operations on inside of zk-SNARK circuits built over our new BLS12-381 curve.
source: green