switches to Bazlmod

MODULE.bazel

@@ -0,0 +1,48 @@
+###############################################################################
+# Bazel now uses Bzlmod by default to manage external dependencies.
+# Please consider migrating your external dependencies from WORKSPACE to MODULE.bazel.
+#
+# For more details, please check https://github.com/bazelbuild/bazel/issues/18958
+###############################################################################
+
+module(
+    name = "private_join_and_compute",
+    version = "0.0.1",
+)
+
+bazel_dep(name = "bazel_skylib", version = "1.7.1")
+bazel_dep(name = "grpc", version = "1.66.0.bcr.2", repo_name = "com_github_grpc_grpc")
+bazel_dep(name = "glog", version = "0.7.1")
+bazel_dep(name = "gflags", version = "2.2.2")
+bazel_dep(name = "abseil-cpp", version = "20240722.0")
+bazel_dep(name = "googletest", version = "1.15.2")
+bazel_dep(name = "boringssl", version = "0.20240913.0")
+bazel_dep(name = "rules_cc", version = "0.0.16")
+bazel_dep(name = "protobuf", version = "29.0")
+bazel_dep(name = "rules_proto_grpc", version = "5.0.0")
+bazel_dep(name = "rules_proto_grpc_cpp", version = "5.0.0")
+bazel_dep(name = "rules_pkg", version = "1.0.1")
+bazel_dep(name = "rules_java", version = "8.6.2")
+bazel_dep(name = "rules_python", version = "1.0.0")
+
+# Python
+python = use_extension("@rules_python//python/extensions:python.bzl", "python")
+python.toolchain(
+    is_default = True,
+    python_version = "3.12",
+)
+use_repo(
+    python,
+    # register toolchains
+    "python_3_12",
+    # Handy helper for all
+    "python_versions",
+)
+
+pip = use_extension("@rules_python//python/extensions:pip.bzl", "pip")
+use_repo(pip, "pjc_pip_deps")
+pip.parse(
+    hub_name = "pjc_pip_deps",
+    python_version = "3.12",
+    requirements_lock = "//private_join_and_compute/py/requirements:requirements_lock_3_12.txt",
+)

README.md

@@ -37,15 +37,15 @@ as Private Intersection-Sum.
 
 ## How to run the protocol
 
-In order to run Private Join and Compute, you need to install Bazelisk (Note
-this release requires Bazel version < 7.0.)
-[Follow the instructions for your platform on the Bazelisk website.](https://github.com/bazelbuild/bazelisk/blob/master/README.md)
+In order to run Private Join and Compute, you need to install Bazel, if you
+don't have it already.
+[Follow the instructions for your platform on the Bazel website.](https://docs.bazel.build/versions/master/install.html)
 
 You also need to install Git, if you don't have it already.
 [Follow the instructions for your platform on the Git website.](https://git-scm.com/book/en/v2/Getting-Started-Installing-Git)
 
-Once you've installed Bazelisk and Git, open a Terminal and clone the Private
-Join and Compute repository into a local folder:
+Once you've installed Bazel and Git, open a Terminal and clone the Private Join
+and Compute repository into a local folder:
 
 ```shell
 git clone https://github.com/google/private-join-and-compute.git
@@ -56,7 +56,7 @@ the Private Join and Compute library and dependencies using Bazel:
 
 ```bash
 cd private-join-and-compute
-bazelisk build //private_join_and_compute:all
+bazel build //private_join_and_compute:all
 ```
 
 (All the following instructions must be run from inside the
@@ -131,7 +131,7 @@ careful analysis of whether any party has an incentive to lie about their
 inputs. This risk can also be mitigated by external enforcement such as code
 audits.
 
-### Leakage from the Intersection-Sum with Cardinality.
+### Leakage from Intersection-Sum with Cardinality.
 
 While the Private Join and Compute functionality is supposed to reveal only the
 intersection-size and intersection-sum, it is possible that these outputs
@@ -169,3 +169,8 @@ explore mitigations. We refer readers to these works for further discussion.
 
 This is not an officially supported Google product. The software is provided
 as-is without any guarantees or warranties, express or implied.
+
+## Acknowledgements
+
+Thank you to Nick Angelou ([s0l0ist@](https://github.com/s0l0ist)) who's work
+provided the basis for the Bzlmod migration.

private_join_and_compute/BUILD

@@ -43,7 +43,7 @@ cc_library(
     deps = [
         ":private_join_and_compute_proto",
         "//private_join_and_compute/util:status_includes",
-        "@com_google_absl//absl/memory",
+        "@abseil-cpp//absl/memory",
     ],
 )
 
@@ -109,8 +109,8 @@ cc_library(
         ":match_proto",
         "//private_join_and_compute/crypto:bn_util",
         "//private_join_and_compute/util:status_includes",
-        "@com_google_absl//absl/container:btree",
-        "@com_google_absl//absl/strings",
+        "@abseil-cpp//absl/container:btree",
+        "@abseil-cpp//absl/strings",
     ],
 )
 
@@ -119,10 +119,10 @@ cc_binary(
     srcs = ["generate_dummy_data.cc"],
     deps = [
         ":data_util",
-        "@com_google_absl//absl/base",
-        "@com_google_absl//absl/flags:flag",
-        "@com_google_absl//absl/flags:parse",
-        "@com_google_absl//absl/log",
+        "@abseil-cpp//absl/base",
+        "@abseil-cpp//absl/flags:flag",
+        "@abseil-cpp//absl/flags:parse",
+        "@abseil-cpp//absl/log",
     ],
 )
 
@@ -148,11 +148,11 @@ cc_binary(
         ":private_join_and_compute_rpc_impl",
         ":protocol_server",
         ":server_impl",
+        "@abseil-cpp//absl/base",
+        "@abseil-cpp//absl/flags:flag",
+        "@abseil-cpp//absl/flags:parse",
         "@com_github_grpc_grpc//:grpc",
         "@com_github_grpc_grpc//:grpc++",
-        "@com_google_absl//absl/base",
-        "@com_google_absl//absl/flags:flag",
-        "@com_google_absl//absl/flags:parse",
     ],
 )
 
@@ -164,11 +164,11 @@ cc_binary(
         ":data_util",
         ":private_join_and_compute_proto",
         ":protocol_client",
+        "@abseil-cpp//absl/base",
+        "@abseil-cpp//absl/flags:flag",
+        "@abseil-cpp//absl/flags:parse",
+        "@abseil-cpp//absl/strings",
         "@com_github_grpc_grpc//:grpc",
         "@com_github_grpc_grpc//:grpc++",
-        "@com_google_absl//absl/base",
-        "@com_google_absl//absl/flags:flag",
-        "@com_google_absl//absl/flags:parse",
-        "@com_google_absl//absl/strings",
     ],
 )