szlta commented on code in PR #13225:
URL: https://github.com/apache/iceberg/pull/13225#discussion_r2555523119
##########
core/src/main/java/org/apache/iceberg/rest/RESTTableOperations.java:
##########
@@ -166,7 +208,67 @@ public void commit(TableMetadata base, TableMetadata
metadata) {
@Override
public FileIO io() {
- return io;
+ if (encryptionKeyId == null) {
+ return io;
+ }
+
+ if (encryptingFileIO == null) {
+ encryptingFileIO = EncryptingFileIO.combine(io, encryption());
+ }
+
+ return encryptingFileIO;
+ }
+
+ @Override
+ public EncryptionManager encryption() {
+ if (encryptionManager != null) {
+ return encryptionManager;
+ }
+
+ if (encryptionKeyId != null) {
+ if (kmsClient == null) {
+ throw new RuntimeException(
+ "Cant create encryption manager, because key management client is
not set");
+ }
+
+ Map<String, String> tableProperties = Maps.newHashMap();
+ tableProperties.put(TableProperties.ENCRYPTION_TABLE_KEY,
encryptionKeyId);
+ tableProperties.put(
+ TableProperties.ENCRYPTION_DEK_LENGTH,
String.valueOf(encryptionDekLength));
+ encryptionManager =
+ EncryptionUtil.createEncryptionManager(
+ encryptedKeysFromMetadata, tableProperties, kmsClient);
+ } else {
+ return PlaintextEncryptionManager.instance();
+ }
+
+ return encryptionManager;
+ }
+
+ private void encryptionPropsFromMetadata(TableMetadata metadata) {
Review Comment:
One aspect of having an encrypted metadata.json is when the table schema is
also considered a sensitive piece of information. I haven't found this in the
discussions but do you know if this has ever been considered @ggershinsky ?
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