TSS Library

[litt3]

Proposal

https://github.com/hashgraph/hedera-services/blob/develop/platform-sdk/docs/proposals/TSS-Library/TSS-Library.md

Pre-Project

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1. Create all the tickets for the TSS / Pairings Cryptography Module epic #13865
   Platform +1
   
2. Decide which library will be used for BLS bilinear pairings #13236
   Platform +1
   
3. Add support for multiple shares to the existing rust code base #13358
   +0
   
4. Create Proposal Document for TSS Library #13161
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5. Get the TSS Cryptography Library proposal accepted #14096
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6. TSS Library: Project kick off with devops / re #14149
   Platform +1
   

Stage 1

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1. BLS Signature Generation Tool #15216
   29 of 29
   Epic Platform +2

Stage 2

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1. Move hedera-cryptography-tss project to hedera-cryptography #15405
   Platform +1
   
2. Aggregate BlsPrivateKeys, BlsPublicKeys and BlsSignatures #16022
   Platform +1
   
3. Create Polynomial and FeldmanCommitment #16060
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4. ElgamalUtils Create an operation that can produce a multi-share ciphertext and a combined-ciphertext #16103
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5. Create a class to represent NIZKs proof. Include Statement, Proof, Witness classes,and prove and verify operation #16104
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6. pairings-signatures-library: Create ElGamalUtil Class with the ability to create and decrypt a valid ElGamal cipher text #15211
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7. tss-library In the TssParticipantDirectory pariticipantId should be long to match the roster_entry.node_id #15495
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8. tss-library Code reorganization #16438
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9. tss-library Implement all Operations in TssService Genesis Stage & Rekey Stage #16393
   12 of 12
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10. We need to support Long value as participant ids while keep suporting Integer.MAX_SIZE of shares*participants #16481
    Platform +1
    
11. tss-library TssMessage instances should be able to serialize/deserialize themselves #15506
    Platform +1
12. Pairings-api: Add multi-arity add and mult operations in group and field #16096
    Platform +1
    
13. Deduplicate code for operations on signatures and keys #16136
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14. hedera-cryptography reduce & organize & update 3erd party libraries #16489
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15. bls-keygen adapt project to TSS Encryption Key Automation Proposal #16601
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16. pairings-api investigate PairingFriendlyCurveProvider issue in multi-threaded environment #16673
    Platform +1
    
17. Add support for TSS stage monitoring #16814
    Platform +1
    
18. Remove async method #16815
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19. GroupFacade.fromBytes() needs to get updated representation from arkworks #16898
    Platform +1
    
20. TSS Library: Execute Test Plan and validation for tss-library #14146
    0 of 4
    Epic Platform +2

Serialization

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1. Modify pairings API to support various serialization formats #16680
   Platform +1
   
2. Define an API for serialization #16681
   Platform +1
   
3. Modify serialization tests to test at the JNI layer #16688
   Platform +1
   
4. Implement Ethereum serialization for elements #16682
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5. Add support for compressed serialization in rust library #16683
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6. Implement BLS serialization using new API #16684
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7. Implement TSS serialization using new API #16685
   Platform +1
8. Implement compressed serialization #17145
   Platform +1
   

Investigation & Misc

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1. TSS Library: Define and create a Test Plan #14134
   Platform +1
   
2. Update tss-library proposal #14390
   Platform +1
   
3. Update tss-library proposal to reflect latest changes #15169
   Platform +1
   
4. Clean old implementations directories from hedera-cryptography #15507
   Platform +1
5. We have two threshold values for tss, candidate is used for generating new shares. Current is used for validating existing committee #15505
   Platform +1
6. repository basic readme file and licence headers for rust code #16046
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7. tss-library Decide what Serialization/deserialization strategy to use for TssMessage instances #15555
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8. Investigate the effects of Arkworks flags in groupElements: https://github.com/arkworks-rs/algebra/issues/708 #16377
   Platform +1
   
9. TSS Library: Define Security Plan #14135
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10. tss-message Measure gain / cost of compressed serialization for group elements #16674
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11. Create comprehensive a documentation README.md in hedera-cryptography #15508
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12. Validate pairings-api-impl against cryptography #14142
    Platform +1
13. Validate and refine tss-library against cryptography #14145
    Platform +1
14. Update tss-library proposal with latest changes #16606
    Platform +1
    

Closed as invalid or replaced

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1. Generate the JNI wrapper for the methods from Arkworks #14195
   Platform +1
2. pairings-signatures-library: Convert all data produced in the library that use arkworks serialization that must also be stored in state to protobuf #15026
   Platform +1
3. Implementation of pairings-signatures-library #14139
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4. Implement the tss-library #13327
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5. tss-library Generate necessary classes for creation of aTssMessage #15496
   Epic Platform +2
   

This Epic depends on

• Organize Hedera-Cryptography Repository and create necessary gradle modules and plugins #13324
• hedera-cryptography Repository CI/CD #14100

This Epic is prerequisite of

• TSS Block Signing #13315