Main development tasks and choices tracking list

[ghost]

Tracking all major tasks and decisions to be made, both roughly in order of importance.

Decisions:

• Choose a BLS signature crate/library/implementation and/or choose to write a new one BLS signatures and aggregation #23
• Choose symmetric key crypto primitives Instantiate symmetric crypto primitives #10
• Choose signature scheme for DKG participant identities Instantiate public key crypto primitives #11

Tasks:

• Implement integrate BLS signatures BLS signatures and aggregation #23
• Implement group secret key compatible signature (if necessary)
• Integrate threshold decryption crate and/or contribute upstream Integrate threshold decryption crate #26
• Side-channel analysis Side-channel vulnerability analysis and mitigations #16
• Implement loading of trusted setup Implement loading of trusted setup #17
• Implement all scalability and performance enhancements Performance enhancements tracking #5
• Implement key refresh Implement key refresh #18
• Implement randomness beacon Implement randomness beacon via threshold signatures #27
• Use VariableBaseMSM to optimize decryption #54
• Parallelize everything with rayon #77
• Cleanup benchmarks #78
• Create tests #79

We're also dependent on some external tasks:

• Improve arkworks Fp12 performance Field Trait: Consider adding static linear combination operation arkworks-rs/algebra#121
• Improve arkworks subgroup check Fast subgroup checks #14
• Contribute tests to arkworks hash-to-curve Add Wahby-Boneh hash-to-curve arkworks-rs/algebra#343
• Use hash-to-field/hash-to-curve to arkworks Add Wahby-Boneh hash-to-curve arkworks-rs/algebra#343

[ghost]

Main blockers at the moment:

• Hash to curve still not implemented
• Key-committing AEAD implementation needed
• Operations that can be parallelize should be using rayon or similar