/usr/include/botan/sha2_32.h is in libbotan1.8-dev 1.8.13-4.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 | /*
* SHA-{224,256}
* (C) 1999-2008 Jack Lloyd
* 2007 FlexSecure GmbH
*
* Distributed under the terms of the Botan license
*/
#ifndef BOTAN_SHA_256_H__
#define BOTAN_SHA_256_H__
#include <botan/mdx_hash.h>
namespace Botan {
/*
* SHA-{224,256} Base
*/
class BOTAN_DLL SHA_224_256_BASE : public MDx_HashFunction
{
protected:
void clear() throw();
SHA_224_256_BASE(u32bit out) :
MDx_HashFunction(out, 64, true, true) { clear(); }
SecureBuffer<u32bit, 64> W;
SecureBuffer<u32bit, 8> digest;
private:
void compress_n(const byte[], u32bit blocks);
void copy_out(byte[]);
};
/*
* SHA-224
*/
class BOTAN_DLL SHA_224 : public SHA_224_256_BASE
{
public:
void clear() throw();
std::string name() const { return "SHA-224"; }
HashFunction* clone() const { return new SHA_224; }
SHA_224() : SHA_224_256_BASE(28) { clear(); }
};
/*
* SHA-256
*/
class BOTAN_DLL SHA_256 : public SHA_224_256_BASE
{
public:
void clear() throw();
std::string name() const { return "SHA-256"; }
HashFunction* clone() const { return new SHA_256; }
SHA_256() : SHA_224_256_BASE(32) { clear (); }
};
}
#endif
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