wgtmac commented on code in PR #34616:
URL: https://github.com/apache/arrow/pull/34616#discussion_r1267542191


##########
python/pyarrow/dataset.py:
##########
@@ -83,6 +83,8 @@
 
 try:
     from pyarrow._dataset_parquet import (  # noqa
+        DatasetEncryptionConfiguration,
+        DatasetDecryptionConfiguration,

Review Comment:
   ```suggestion
           DatasetDecryptionConfiguration,
           DatasetEncryptionConfiguration,
   ```



##########
python/pyarrow/tests/test_dataset_encryption.py:
##########
@@ -0,0 +1,106 @@
+# Licensed to the Apache Software Foundation (ASF) under one
+# or more contributor license agreements.  See the NOTICE file
+# distributed with this work for additional information
+# regarding copyright ownership.  The ASF licenses this file
+# to you 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
+#
+#   http://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.
+
+from datetime import timedelta
+import pyarrow.fs as fs
+import pyarrow as pa
+from pyarrow.tests.parquet.encryption import InMemoryKmsClient
+
+try:
+    import pyarrow.dataset as ds
+except ImportError:
+    ds = None
+
+try:
+    import pyarrow.parquet.encryption as pe
+except ImportError:
+    pe = None
+
+
+FOOTER_KEY = b"0123456789112345"
+FOOTER_KEY_NAME = "footer_key"
+COL_KEY = b"1234567890123450"
+COL_KEY_NAME = "col_key"
+
+
+def create_sample_table():
+    return pa.table({'year': [2020, 2022, 2021, 2022, 2019, 2021],
+                     'n_legs': [2, 2, 4, 4, 5, 100],
+                     'animal': ["Flamingo", "Parrot", "Dog", "Horse",
+                                "Brittle stars", "Centipede"]})
+
+
+def create_encryption_config():
+    return pe.EncryptionConfiguration(
+        footer_key=FOOTER_KEY_NAME,
+        plaintext_footer=False,
+        column_keys={COL_KEY_NAME: ["n_legs", "animal"]},
+        encryption_algorithm="AES_GCM_V1",
+        # requires timedelta or an assertion is raised
+        cache_lifetime=timedelta(minutes=5.0),
+        data_key_length_bits=256)
+
+
+def create_decryption_config():
+    return pe.DecryptionConfiguration(cache_lifetime=300)
+
+
+def create_kms_connection_config():
+    return pe.KmsConnectionConfig(
+        custom_kms_conf={
+            FOOTER_KEY_NAME: FOOTER_KEY.decode("UTF-8"),
+            COL_KEY_NAME: COL_KEY.decode("UTF-8"),
+        }
+    )
+
+
+def kms_factory(kms_connection_configuration):
+    return InMemoryKmsClient(kms_connection_configuration)
+
+
+def test_dataset_encryption_decryption():
+    table = create_sample_table()
+    dataset = ds.dataset(table)
+
+    encryption_config = create_encryption_config()
+    decryption_config = create_decryption_config()
+    kms_connection_config = create_kms_connection_config()
+
+    crypto_factory = pe.CryptoFactory(kms_factory)
+    dataset_encryption_cfg = ds.DatasetEncryptionConfiguration(
+        crypto_factory, kms_connection_config, encryption_config)
+
+    dataset_decryption_cfg = ds.DatasetDecryptionConfiguration(crypto_factory,
+                                                               
kms_connection_config,
+                                                               
decryption_config)

Review Comment:
   ```suggestion
       crypto_factory = pe.CryptoFactory(kms_factory)
       dataset_encryption_cfg = ds.DatasetEncryptionConfiguration(
           crypto_factory, kms_connection_config, encryption_config)
       dataset_decryption_cfg = 
ds.DatasetDecryptionConfiguration(crypto_factory,
                                                                  
kms_connection_config,
                                                                  
decryption_config)
   ```



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