| Package | Description | 
|---|---|
| org.apache.hadoop.crypto.key | Licensed to the Apache Software Foundation (ASF) under one
 or more contributor license agreements. | 
| org.apache.hadoop.crypto.key.kms | 
| Class and Description | 
|---|
| KeyProvider A provider of secret key material for Hadoop applications. | 
| KeyProvider.KeyVersion The combination of both the key version name and the key material. | 
| KeyProvider.Metadata Key metadata that is associated with the key. | 
| KeyProvider.Options Options when creating key objects. | 
| KeyProviderCryptoExtension.EncryptedKeyVersion An encrypted encryption key (EEK) and related information. | 
| KeyProviderDelegationTokenExtension A KeyProvider extension with the ability to add a renewer's Delegation
 Tokens to the provided Credentials. | 
| KeyProviderExtension This is a utility class used to extend the functionality of KeyProvider, that
 takes a KeyProvider and an Extension. | 
| KeyProviderExtension.Extension A marker interface for the KeyProviderExtension subclass implement. | 
| KeyProviderFactory A factory to create a list of KeyProvider based on the path given in a
 Configuration. | 
| Class and Description | 
|---|
| KeyProvider A provider of secret key material for Hadoop applications. | 
| KeyProvider.KeyVersion The combination of both the key version name and the key material. | 
| KeyProvider.Metadata Key metadata that is associated with the key. | 
| KeyProvider.Options Options when creating key objects. | 
| KeyProviderCryptoExtension.CryptoExtension CryptoExtension is a type of Extension that exposes methods to generate
 EncryptedKeys and to decrypt the same. | 
| KeyProviderCryptoExtension.EncryptedKeyVersion An encrypted encryption key (EEK) and related information. | 
| KeyProviderDelegationTokenExtension.DelegationTokenExtension DelegationTokenExtension is a type of Extension that exposes methods
 needed to work with Delegation Tokens. | 
| KeyProviderExtension.Extension A marker interface for the KeyProviderExtension subclass implement. | 
| KeyProviderFactory A factory to create a list of KeyProvider based on the path given in a
 Configuration. | 
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