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The Zcash Basis is happy to announce the discharge of FROST v2.0.0. This launch contains quite a lot of vital adjustments and enhancements to the FROST reference implementation.
The discharge introduces some breaking adjustments, motivated both by the aim of simplifying the API or to handle points. Specifically, we modified the deserialization of elliptic curve factors (Ingredient) to return an error; this was as a result of a requirement within the FROST specification to verify that the id is just not being serialized or de-serialised and returning an error if that’s the case. This requirement was not being adopted in earlier variations of the FROST reference implementation. We aren’t conscious of any potential safety points that may very well be brought on by this; nonetheless, we contemplate this modification the appropriate factor to do as a defense-in-depth mechanism. Due to Jason Huang for reporting this concern.
One other vital breaking change is simplifications to serialization and deserialization of structs that wrapped Scalar or Components. This permits changing code that appeared like X::deserialize(bytes.try_into().unwrap()) into X::deserialize(&bytes), which is far easier.
There are another smaller breaking adjustments that are documented within the CHANGELOG.
We have now added quite a lot of new options reminiscent of refresh share performance within the Trusted Vendor state of affairs and a brand new verify_signature_share() perform in frost-core which permits verifying particular person signature shares. The identical performance for Distributed Key Era is being developed and will likely be included in a future launch.
This launch additionally provides no-std help to all crates besides frost-ed448. This permits the utilization of the crates in restricted environments reminiscent of embedded gadgets. Seek advice from the CHANGELOG for particulars.
We have now additionally made quite a lot of enhancements to our documentation, together with updates and enhancements to the FROST demo documentation.
You possibly can see a full copy of the entire included adjustments within the v2.0.0 Launch Notes on GitHub. Due to StackOverflowExcept1on for his or her a number of contributions.
The put up FROST 2.0.0 Launch appeared first on Zcash Basis.
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