llvm/llvm/include/llvm/Support/SHA256.h

//====- SHA256.cpp - SHA256 implementation ---*- C++ -* ======//
//
// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
// See https://llvm.org/LICENSE.txt for license information.
// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
//
//===----------------------------------------------------------------------===//
/*
 *  The SHA-256 Secure Hash Standard was published by NIST in 2002.
 *
 *  http://csrc.nist.gov/publications/fips/fips180-2/fips180-2.pdf
 *
 *   The implementation is based on nacl's sha256 implementation [0] and LLVM's
 *  pre-exsiting SHA1 code [1].
 *
 *   [0] https://hyperelliptic.org/nacl/nacl-20110221.tar.bz2 (public domain
 *       code)
 *   [1] llvm/lib/Support/SHA1.{h,cpp}
 */
//===----------------------------------------------------------------------===//

#ifndef LLVM_SUPPORT_SHA256_H
#define LLVM_SUPPORT_SHA256_H

#include <array>
#include <cstdint>

namespace llvm {

template <typename T> class ArrayRef;
class StringRef;

class SHA256 { … };

} // namespace llvm

#endif // LLVM_SUPPORT_SHA256_H