Import content from http://ag/23451840upstream-import

Squashed commit of the following:

commit 00c2b21c8fa9004aa697c01961c46fe0329cffe8
Author: Kevin Graney <kmg@google.com>
Date:   Tue May 9 14:39:03 2023 -0400

    Add TEST_MAPPING

commit ed8ac8d9261350a5387039f36027584491e04745
Author: Kevin Graney <kmg@google.com>
Date:   Tue May 9 10:48:45 2023 -0400

    Depend on private-join-and-compute abseil

commit 1907d032ccf04e256a3900d0db55d56e861f0ba6
Author: Kevin Graney <kmg@google.com>
Date:   Thu May 4 15:48:54 2023 -0400

    Fix METADATA filename typo

commit b77a752a66406082974f12ee3455742337e02f85
Author: Kevin Graney <kmg@google.com>
Date:   Thu May 4 10:24:04 2023 -0400

    Add build rules

commit 132bec1222d439625cf8ae692c03ce518945cba2
Author: Kevin Graney <kmg@google.com>
Date:   Thu May 4 10:24:26 2023 -0400

    Add abseil

commit 410c261bf1629f65651d2b7bc53a188e5dba2211
Author: Kevin Graney <kmg@google.com>
Date:   Tue Apr 25 13:27:39 2023 -0400

    Add metadata files

commit 827d2aa796804f9ed28fc1c35ada56e0c62800be
Author: Karn Seth <karn@google.com>
Date:   Wed Apr 19 11:12:58 2023 -0400

    initial commit

Change-Id: I8f92eeb3857f7e65fdf495e76a4967ae69ed5878

1 files changed, 114 insertions, 0 deletions

diff --git a/act/act_v0/BUILD b/act/act_v0/BUILD
new file mode 100644
index 0000000..64dacac
--- /dev/null
+++ b/act/act_v0/BUILD
@@ -0,0 +1,114 @@
+# Copyright 2023 Google LLC.
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#     https://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
+load("@rules_cc//cc:defs.bzl", "cc_library")
+load("@rules_proto//proto:defs.bzl", "proto_library")
+
+package(default_visibility = ["//visibility:public"])
+
+proto_library(
+    name = "act_v0_proto",
+    srcs = ["act_v0.proto"],
+    deps = [
+        "@private_join_and_compute//private_join_and_compute/crypto/dodis_yampolskiy_prf:bb_oblivious_signature_proto",
+        "@private_join_and_compute//private_join_and_compute/crypto/dodis_yampolskiy_prf:dy_verifiable_random_function_proto",
+        "@private_join_and_compute//private_join_and_compute/crypto/proto:big_num_proto",
+        "@private_join_and_compute//private_join_and_compute/crypto/proto:camenisch_shoup_proto",
+        "@private_join_and_compute//private_join_and_compute/crypto/proto:pedersen_proto",
+    ],
+)
+
+cc_proto_library(
+    name = "act_v0_cc_proto",
+    deps = [":act_v0_proto"],
+)
+
+cc_library(
+    name = "act_v0",
+    srcs = ["act_v0.cc"],
+    hdrs = ["act_v0.h"],
+    deps = [
+        ":act_v0_cc_proto",
+        "//act",
+        "//act:act_cc_proto",
+        "@private_join_and_compute//private_join_and_compute/crypto:bn_util",
+        "@private_join_and_compute//private_join_and_compute/crypto:camenisch_shoup",
+        "@private_join_and_compute//private_join_and_compute/crypto:ec_util",
+        "@private_join_and_compute//private_join_and_compute/crypto:pedersen_over_zn",
+        "@private_join_and_compute//private_join_and_compute/crypto/dodis_yampolskiy_prf:bb_oblivious_signature",
+        "@private_join_and_compute//private_join_and_compute/crypto/dodis_yampolskiy_prf:bb_oblivious_signature_cc_proto",
+        "@private_join_and_compute//private_join_and_compute/crypto/dodis_yampolskiy_prf:dy_verifiable_random_function",
+        "@private_join_and_compute//private_join_and_compute/crypto/dodis_yampolskiy_prf:dy_verifiable_random_function_cc_proto",
+        "@private_join_and_compute//private_join_and_compute/crypto/proto:big_num_cc_proto",
+        "@private_join_and_compute//private_join_and_compute/crypto/proto:camenisch_shoup_cc_proto",
+        "@private_join_and_compute//private_join_and_compute/crypto/proto:ec_point_cc_proto",
+        "@private_join_and_compute//private_join_and_compute/crypto/proto:pedersen_cc_proto",
+        "@private_join_and_compute//private_join_and_compute/crypto/proto:proto_util",
+        "@private_join_and_compute//private_join_and_compute/util:status_includes",
+    ],
+)
+
+cc_test(
+    name = "act_v0_test",
+    srcs = ["act_v0_test.cc"],
+    deps = [
+        ":act_v0",
+        ":act_v0_cc_proto",
+        ":parameters",
+        "//act",
+        "//act:act_cc_proto",
+        "@com_github_google_googletest//:gtest_main",
+        "@com_google_absl//absl/strings",
+        "@private_join_and_compute//private_join_and_compute/crypto:bn_util",
+        "@private_join_and_compute//private_join_and_compute/crypto:camenisch_shoup",
+        "@private_join_and_compute//private_join_and_compute/crypto:ec_util",
+        "@private_join_and_compute//private_join_and_compute/crypto:pedersen_over_zn",
+        "@private_join_and_compute//private_join_and_compute/crypto/dodis_yampolskiy_prf:bb_oblivious_signature",
+        "@private_join_and_compute//private_join_and_compute/crypto/dodis_yampolskiy_prf:bb_oblivious_signature_cc_proto",
+        "@private_join_and_compute//private_join_and_compute/crypto/dodis_yampolskiy_prf:dy_verifiable_random_function",
+        "@private_join_and_compute//private_join_and_compute/crypto/dodis_yampolskiy_prf:dy_verifiable_random_function_cc_proto",
+        "@private_join_and_compute//private_join_and_compute/crypto/proto:big_num_cc_proto",
+        "@private_join_and_compute//private_join_and_compute/crypto/proto:camenisch_shoup_cc_proto",
+        "@private_join_and_compute//private_join_and_compute/crypto/proto:pedersen_cc_proto",
+        "@private_join_and_compute//private_join_and_compute/util:status_includes",
+        "@private_join_and_compute//private_join_and_compute/util:status_testing_includes",
+    ],
+)
+
+cc_library(
+    name = "parameters",
+    srcs = ["parameters.cc"],
+    hdrs = ["parameters.h"],
+    deps = [
+        ":act_v0_cc_proto",
+        "//act:act_cc_proto",
+        "@private_join_and_compute//private_join_and_compute/crypto:ec_util",
+    ],
+)
+
+cc_test(
+    name = "parameters_test",
+    size = "enormous",
+    srcs = ["parameters_test.cc"],
+    deps = [
+        ":act_v0",
+        ":parameters",
+        "//act",
+        "//act:act_cc_proto",
+        "@com_github_google_googletest//:gtest_main",
+        "@com_google_absl//absl/strings",
+        "@private_join_and_compute//private_join_and_compute/util:status_includes",
+        "@private_join_and_compute//private_join_and_compute/util:status_testing_includes",
+    ],
+)