* Add placeholder client for implementing coconut interactions
* Add db for persistance
* Add nymd client
* Add new coconut-bandwidth contract
* Call deposit function
* Introduce error handling
* Call the old flow of getting a signature
* List available tx hashes
* Add signed req in body
* Save signature received
* Add event generation
* Checks in validator-api
* Fail with error instead of panic in validator-api route
* Fix contract address and small bug
* Add file db for storing previous signatures
* Encrypt and store data in validator-api
* Decrypt the received signature
* Remove tx hashes after getting credentials
* Small listing changes in client
* Change response so that it easier to serialize
* Error message is sent to client for display
* Remove already signed error and return the previous sig
* Merge signature with deposit data in client
* Entrypoint for getting the encrypted signature
* Refactor blinding stuff so that it can be backed up
* Backed up the blind sign request
* Client can re-request the encrypted signature shares
* Update crypto features
* Fix clippy
* Activate instantiate test and remove unused code
* Add tx tests
* Add verification key endpoint test
* Voucher consistency test
* Test for some errors and a race condition on blind signing
* Refactor and add client trait for enabling better testing env
* Test some more of blind sign
* Finished testing all extract_encryption_key paths
* Split into function test and endpoint test
* Test for correct signature
* Test for state functions
* Remove print
* Test blind_sign endpoint
* Test for cached signature endpoint
* Stricter types in voucher
* Rename signature with partial_bandwidth_credential
* Extra route levels
* Length check and remove some unused code from coconut interface
* Renamed coconut-bandwidth common crate
* Renamed verification_key to identity_key
* Use const instead of hardcoded values
* Use type aliases for crypto algorithms
* Remove unused mods, until needed
* Remove unneeded unwrap
* Fix some coconut issues that were blocking the wasm client build
* Move from sled to existing sql database
* Update tests for new db type
* Fix wasm for coconut too
* Remove sled from dependencies
* add pedersen.rs and first alias type
* replace ciphertexts in BlindSignRequest by commitments and adapt try_from
* update BlindSignRequest.to_byte_vec
* add TODO to issuance.rs
* [WIP] update CmCs proof to use commitments
* complete ProofCmCs construct implementation
* [WIP] ProofCmCs verify
* complete ProofCmCs verify implementation
* complete ProofCmCs to_bytes implementation
* complete ProofCmCs from_bytes implementation
* WIP update ProofCmCs roundtrip tests
* WIP update prepare_blind_sign
* update prepare_blind_sign
* WIP update blind_sign
* update blind_sign
* update BlindedSignature and try_from
* update BlindedSignature unblind
* update BlindedSignature to_bytes
* move elgamal encrypto to elgamal and manage imports
* add verification keys for g1 method
* upadate tests to work with Pedersen commitments
* unused remove pedersen.rs
* update error message
* fix proof_cm_cs_bytes_roundtrip test
* Move generation of commitment openings into prepare blind signature function
* Edits
* Extende the verification key; remove validator's secret key from the unblind function
* Update the unblind function throughout the whole nymcoconut repo
* Fix broken tests
* Run cargo clippy and fmt
* Add benchmark measurements
* Add more detailed printouts
* Change byte printout
* Update benchmarks
* add public attributes as part of the commitment
* update bytes order comment for ProofCmCs
* check proof_cm_cs_bytes_roundtrip test and remove TODO
* remove irrelevant prints in blind signature tests
* remove inappropriate function to get betas_g1
* remove irrelevant prints in verification
* Remove print statement and add additional checks on the verification key
* Run clippy
* Fix coconut call in validator-api
* Update dependend packages
* Update the input to the obtain partial credential function
* Fix the verification key bytes calculation
* Run cargo fmt on keygen.rs
* Run cargo fmt for validator-api
* Run cargo fmt for credentials
* Replace concat with chain
* Remove unneccessary mut
* Run cargo fmt
* fix type conversion
Co-authored-by: aniampio <anna.piotrowska.15@ucl.ac.uk>
Bogdan-Ștefan Neacşu