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/*
* SHA-160
* (C) 1999-2007,2016 Jack Lloyd
*
* Botan is released under the Simplified BSD License (see license.txt)
*/
#ifndef BOTAN_SHA_160_H_
#define BOTAN_SHA_160_H_
#include <botan/mdx_hash.h>
BOTAN_FUTURE_INTERNAL_HEADER(sha160.h)
namespace Botan {
/**
* NIST's SHA-160
*/
class BOTAN_PUBLIC_API(2,0) SHA_160 final : public MDx_HashFunction
{
public:
std::string name() const override { return "SHA-160"; }
size_t output_length() const override { return 20; }
HashFunction* clone() const override { return new SHA_160; }
std::unique_ptr<HashFunction> copy_state() const override;
void clear() override;
SHA_160() : MDx_HashFunction(64, true, true), m_digest(5)
{
clear();
}
private:
void compress_n(const uint8_t[], size_t blocks) override;
#if defined(BOTAN_HAS_SHA1_ARMV8)
static void sha1_armv8_compress_n(secure_vector<uint32_t>& digest,
const uint8_t blocks[],
size_t block_count);
#endif
#if defined(BOTAN_HAS_SHA1_SSE2)
static void sse2_compress_n(secure_vector<uint32_t>& digest,
const uint8_t blocks[],
size_t block_count);
#endif
#if defined(BOTAN_HAS_SHA1_X86_SHA_NI)
// Using x86 SHA instructions in Intel Goldmont and Cannonlake
static void sha1_compress_x86(secure_vector<uint32_t>& digest,
const uint8_t blocks[],
size_t block_count);
#endif
void copy_out(uint8_t[]) override;
/**
* The digest value
*/
secure_vector<uint32_t> m_digest;
/**
* The message buffer
*/
secure_vector<uint32_t> m_W;
};
typedef SHA_160 SHA_1;
}
#endif