Hyperledger Ursa (a shared cryptographic library) has moved to end-of-life status, with the components of Ursa still in use moved to their relevant Hyperledger projects (AnonCreds, Indy, Aries and Iroha).
Sorry, this looks like a BIG PR which it is, but the biggest change is switching from Apache Milagro which is no longer under development to pairing-plus.
Because of this change, it touched 90% of the BBS+ code. This PR only touches the BBS+ code. I have not applied it to the rest of ZMix yet.
Using pairing-plus offers the following advantages:
1- It's under active development
2- It's slightly faster overall about 5-10% faster than milagro in every case.
3- It's significantly faster for HashToCurve, about 100X faster.
4- Built-in compression methods rather than manually doing it.
5- ABI agnostic, it runs the same speed on 64-bit and 32-bit.
6- Unified function names i.e. to_bytes_compressed_form everywhere vs just in BBS
Sorry, this looks like a BIG PR which it is, but the biggest change is switching from Apache Milagro which is no longer under development to pairing-plus. Because of this change, it touched 90% of the BBS+ code. This PR only touches the BBS+ code. I have not applied it to the rest of ZMix yet.
Using pairing-plus offers the following advantages:
1- It's under active development 2- It's slightly faster overall about 5-10% faster than milagro in every case. 3- It's significantly faster for HashToCurve, about 100X faster. 4- Built-in compression methods rather than manually doing it. 5- ABI agnostic, it runs the same speed on 64-bit and 32-bit. 6- Unified function names i.e.
to_bytes_compressed_formeverywhere vs just in BBS