entropy.h

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// Copyright (c) Microsoft Corporation. All rights reserved.
// Licensed under the Apache 2.0 License.
#pragma once
 
#include <cstdint>
#include <cstring>
#include <memory>
#include <vector>
 
namespace ccf::crypto
{
  class Entropy
  {
  public:
    Entropy() = default;
    virtual ~Entropy() = default;
 
    virtual std::vector<uint8_t> random(size_t len) = 0;
 
    virtual void random(unsigned char* data, size_t len) = 0;
 
    virtual uint64_t random64() = 0;
  };
 
  using EntropyPtr = std::shared_ptr<Entropy>;
 
  EntropyPtr get_entropy();
}