tss: new tss package and tss/frost threshold signature scheme#349
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Base implementation by @armfazh taken from this PR: cloudflare#349
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Changes: - The package tss will provide the threshold signature schemes. - The package tss/frost implements the FROST threshold signature scheme for Schnorr signatures. This scheme is under standardization process at IETF/CFRG [2]. Test vectors from [3] are passing for P256 and Ristretto255 groups. - Version supported: v11 References: [1] frost paper: https://eprint.iacr.org/2020/852 [2] draft-irtf-cfrg-frost: https://datatracker.ietf.org/doc/draft-irtf-cfrg-frost [3] test-vectors: https://github.com/cfrg/draft-irtf-cfrg-frost
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Changes:
scheme for Schnorr signatures.
This scheme is under standardization process at IETF/CFRG [2].
Test vectors from [3] are passing for P256 and Ristretto255 groups.
References:
[1] frost paper: https://eprint.iacr.org/2020/852
[2] draft-irtf-cfrg-frost: https://datatracker.ietf.org/doc/draft-irtf-cfrg-frost
[3] test-vectors: https://github.com/cfrg/draft-irtf-cfrg-frost
Closes #316