This is a sample use case for R3's Conclave Confidential Computing Platform. It allows bidders to confidentially submit their bids to an enclave (A protected region of memory which cannot be accessed by the OS, Kernel or BIOS). The bids are processed confidentially in the enclave and the result is returned to concerned parties.
In order to compile this sample successfully, kindly download the conclave SDK and update the location in gradle.properties.
conclaveRepo=<path_to_conclave_sdk>
Conclave SDK can ve downloaded from here: https://conclave.net/get-conclave/
Kindly refer to our official documentation for machine requirements to run the sample. https://docs.conclave.net/tutorial.html#setting-up-your-machine
./gradlew host:assemble
Use -PenclaveMode if you wish to specify an enclave mode, default is simulation mode
./gradlew host:assemble -PenclaveMode=debug
./gradlew host:installDist
The host is required to be run using docker for mac and windows.
docker run -it --rm -p 5051:5051 -v $PWD:/project -w /project --user $(id -u):$(id -g) conclave-build /bin/bash
For linux system, you could skip the above docker command.
cd host/build/install
./host/bin/host
Run the client to sumbit a bid using the below command:
./gradlew runClient --args="BID <enclave_constraint>"
The enclave constraint can be found printed during the build process as below:
Enclave code hash: DB2AF8DD327D18965D50932E08BE4CB663436162CB7641269A4E611FC0956C5F, In this
case the hash DB2AF8DD327D18965D50932E08BE4CB663436162CB7641269A4E611FC0956C5F is the enclave constraint.
You could run multiple clients to submit different bids.
To process the bid run the below command:
./gradlew runClient PROCESS-BID <enclave_constraint>
The enclave should reply with a response message indicating the auction winner to the admin client, and each individual bidders should get a response from the enclave regarding their bid status.