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rm outdated comment
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ggershinsky committed Feb 7, 2023
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import org.apache.iceberg.relocated.com.google.common.base.Preconditions;
import org.apache.iceberg.util.PropertyUtil;

/**
* Encryption manager which in conjunction with a KMS can encrypt {@link OutputFile} and decrypt
* {@link InputFile}. Envelope encryption uses a key wrapping strategy, where a Key Encryption Key
* (KEK) is used to wrap or unwrap a Data Encryption Key DEK which is used to encrypt the underlying
* files.
*
* <p>When generating new DEKs for OutputFiles, this class will first attempt to have the KMS
* generate a new key. If the KMS does not support key generation a new key will be produced by
* pulling bytes from a {@link SecureRandom} on the JVM writing the file.
*/
public class EnvelopeEncryptionManager implements EncryptionManager {
public static final String ENCRYPTION_TABLE_KEY = "encryption.table.key.id";

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