| 1234567891011121314151617181920212223242526272829303132333435363738394041424344454647 | // Copyright 2017 The Abseil Authors.//// Licensed under the Apache License, Version 2.0 (the "License");// you may not use this file except in compliance with the License.// You may obtain a copy of the License at////      https://www.apache.org/licenses/LICENSE-2.0//// Unless required by applicable law or agreed to in writing, software// distributed under the License is distributed on an "AS IS" BASIS,// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.// See the License for the specific language governing permissions and// limitations under the License.#ifndef ABSL_RANDOM_INTERNAL_RANDEN_SLOW_H_#define ABSL_RANDOM_INTERNAL_RANDEN_SLOW_H_#include <cstddef>#include "absl/base/config.h"namespace absl {ABSL_NAMESPACE_BEGINnamespace random_internal {// RANDen = RANDom generator or beetroots in Swiss German.// RandenSlow implements the basic state manipulation methods for// architectures lacking AES hardware acceleration intrinsics.class RandenSlow { public:  // Size of the entire sponge / state for the randen PRNG.  static constexpr size_t kStateBytes = 256;  // 2048-bit  // Size of the 'inner' (inaccessible) part of the sponge. Larger values would  // require more frequent calls to RandenGenerate.  static constexpr size_t kCapacityBytes = 16;  // 128-bit  static void Generate(const void* keys, void* state_void);  static void Absorb(const void* seed_void, void* state_void);  static const void* GetKeys();};}  // namespace random_internalABSL_NAMESPACE_END}  // namespace absl#endif  // ABSL_RANDOM_INTERNAL_RANDEN_SLOW_H_
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