opencoin-issuer-cpp - a C++ OpenCoin Issuer REST-API implementation {#mainpage} ============================================================= ![build](https://github.com/OpenCoin/opencoin-issuer-cpp/actions/workflows/cmake.yaml/badge.svg) [![Documentation](https://github.com/OpenCoin/opencoin-issuer-cpp/actions/workflows/doxygen-gh-pages.yml/badge.svg)](https://github.com/OpenCoin/opencoin-issuer-cpp/actions/workflows/doxygen-gh-pages.yml) # opencoin issuer this is a C++ implementation of the [opencoin protocol](https://opencoin.org/0.4/OpenCoin.html) done as mapping to some kind of REST interface. As all issuer related interactions of the protocol follows a request/response mechanism we are able to map all of them to Http-Requests. We decided to use POST-Requests in all cases, as the protocol uses JSON-formatted messages for requests. The following table gives an overview of the mapping of requests to URLs: | Request | URL | Response | C++ Interface Method | |:------------------|:-------------|:------------------------------|:---------------------------------------------------| | RequestCDDCSerial | /cddc/serial | ResponseCDDCSerial | cdd.cdd_serial of Model::getCurrentCDDC() | | RequestCDDC | /cddc | ResponseCDDC | Model::getCurrentCDDC() | | RequestMKCs | /mkcs | ResponseMKCs | Model::getMKCs | | RequestMint | /mint | ResponseMint | Model::mint | | RequestRenew | /renew | ResponseMint or ResponseDelay | ? | | RequestResume | /resume | ResponseMint or ResponseDelay | ? | | RequestRedeem | /redeem | ResponseRedeem | Model::redeem | actually the implementation is a work in progress. ## TODO - [ ] select crypto library + https://en.wikipedia.org/wiki/Comparison_of_cryptography_libraries + [ ] blinding utilizing crypto++ + [ ] integrate session and login to make transactions account based + [ ] bookkeeping for accounts ## Protocol Questions + What is signed as cdd - only the content of the cdd item with curly braces or also the key? + the weighted URL as array has a different js encoding as other elements + Clarify PSS usage (see https://crypto.stackexchange.com/questions/12707/usability-of-padding-scheme-in-blinded-rsa-signature) ### Blinding Notes https://stackoverflow.com/questions/47860570/how-to-create-and-verify-blind-rsa-signatures-with-crypto https://crypto.stackexchange.com/questions/12707/usability-of-padding-scheme-in-blinded-rsa-signature https://crypto.stackexchange.com/questions/54085/is-there-a-standard-padding-format-for-rsa-blind-signatures/60728#60728 https://crypto.stackexchange.com/questions/5626/rsa-blind-signatures-in-practice