Clean up readme, dockerfile (#77)

Author: chunter-cb

tools/pcr0-verifier/Dockerfile

@@ -41,7 +41,7 @@ RUN amazon-linux-extras enable aws-nitro-enclaves-cli && \
     yum clean all
 
 COPY --from=op-enclave /app/bundle/rootfs/build/eif.bin /app/eif.bin
-COPY extract-pcr0.sh /extract-pcr0.sh
-RUN chmod +x /extract-pcr0.sh
+COPY entrypoint.sh /entrypoint.sh
+RUN chmod +x /entrypoint.sh
 
-ENTRYPOINT ["/extract-pcr0.sh"] 
+ENTRYPOINT ["/entrypoint.sh"] 

tools/pcr0-verifier/README.md

@@ -1,4 +1,4 @@
-# PCR0 Extractor
+# PCR0 Verifier
 
 This tool extracts the PCR0 measurement from an op-enclave EIF (Enclave Image Format) file. The PCR0 measurement is a cryptographic hash that represents the initial state of the enclave, which is crucial for attestation and verification purposes.
 
@@ -9,14 +9,14 @@ This tool extracts the PCR0 measurement from an op-enclave EIF (Enclave Image Fo
 
 ## Building and Running
 
-1. Build the PCR0 extractor container:
+1. Build the PCR0 verifier container:
 ```bash
-docker build -t pcr0-extractor .
+docker build -t pcr0-verifier .
 ```
 
 2. Run the container to extract the PCR0:
 ```bash
-docker run --rm pcr0-extractor
+docker run --rm pcr0-verifier
 ```
 
 The tool will:
@@ -48,4 +48,4 @@ The output will include both the raw PCR0 measurement and instructions for verif
 
 ## Note
 
-The PCR0 measurement is specific to the version of the op-enclave EIF being examined. The current version being used is specified in the Dockerfile as `TAG=v0.0.1-rc5`.
+The PCR0 measurement is specific to the version of the op-enclave EIF being examined. The current version being used is specified in the Dockerfile as `TAG=v0.0.1-rc5`. You can perform the same measurement on other EIF files by modifying the Dockerfile.

tools/pcr0-verifier/entrypoint.sh

@@ -17,4 +17,4 @@ echo -e "\n# Then run these commands to verify:"
 echo "# To register a new PCR0 (requires owner access):"
 echo "cast send \$SYSTEM_CONFIG_GLOBAL_ADDRESS 'registerPCR0(bytes)' ${PCR0_WITH_PREFIX} --rpc-url \$RPC_URL"
 echo -e "\n# To check if a PCR0 is valid:"
-echo "cast call \$SYSTEM_CONFIG_GLOBAL_ADDRESS 'validPCR0s(bytes32)' 0x\$(cast keccak \${PCR0}) --rpc-url \$RPC_URL"
+echo "cast call \$SYSTEM_CONFIG_GLOBAL_ADDRESS 'validPCR0s(bytes32)' \$(cast keccak ${PCR0_WITH_PREFIX}) --rpc-url \$RPC_URL"