http://github.com/google/tink: Tink is a small cryptographic library that provides a safe, simple, agile and fast way to accomplish some common cryptographic tasks. 
// Generated by the protocol buffer compiler.  DO NOT EDIT!
// source: proto/aes_gcm_hkdf_streaming.proto

package com.google.crypto.tink.proto;

public interface AesGcmHkdfStreamingKeyOrBuilder extends
    // @@protoc_insertion_point(interface_extends:google.crypto.tink.AesGcmHkdfStreamingKey)
    com.google.protobuf.MessageOrBuilder {

  
uint32 version = 1;

Returns:The version.
/**
   * <code>uint32 version = 1;</code>
   * @return The version.
   */
  int getVersion();

  
.google.crypto.tink.AesGcmHkdfStreamingParams params = 2;

Returns:Whether the params field is set.
/**
   * <code>.google.crypto.tink.AesGcmHkdfStreamingParams params = 2;</code>
   * @return Whether the params field is set.
   */
  boolean hasParams();
  
.google.crypto.tink.AesGcmHkdfStreamingParams params = 2;

Returns:The params.
/**
   * <code>.google.crypto.tink.AesGcmHkdfStreamingParams params = 2;</code>
   * @return The params.
   */
  com.google.crypto.tink.proto.AesGcmHkdfStreamingParams getParams();
  
.google.crypto.tink.AesGcmHkdfStreamingParams params = 2;

/**
   * <code>.google.crypto.tink.AesGcmHkdfStreamingParams params = 2;</code>
   */
  com.google.crypto.tink.proto.AesGcmHkdfStreamingParamsOrBuilder getParamsOrBuilder();

  
bytes key_value = 3;

Returns:The keyValue.
/**
   * <code>bytes key_value = 3;</code>
   * @return The keyValue.
   */
  com.google.protobuf.ByteString getKeyValue();
}