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/*************************************************
* SHA-160 Source File *
* (C) 1999-2006 The Botan Project *
*************************************************/
#include <botan/sha160.h>
#include <botan/bit_ops.h>
namespace Botan {
extern "C" void sha160_core(u32bit[5], const byte[64], u32bit[84]);
/*************************************************
* SHA-160 Compression Function *
*************************************************/
void SHA_160::hash(const byte input[])
{
sha160_core(digest, input, W);
}
/*************************************************
* Copy out the digest *
*************************************************/
void SHA_160::copy_out(byte output[])
{
for(u32bit j = 0; j != OUTPUT_LENGTH; ++j)
output[j] = get_byte(j % 4, digest[j/4]);
}
/*************************************************
* Clear memory of sensitive data *
*************************************************/
void SHA_160::clear() throw()
{
MDx_HashFunction::clear();
W.clear();
digest[0] = 0x67452301;
digest[1] = 0xEFCDAB89;
digest[2] = 0x98BADCFE;
digest[3] = 0x10325476;
digest[4] = 0xC3D2E1F0;
}
/*************************************************
* SHA_160 Constructor *
*************************************************/
SHA_160::SHA_160() : MDx_HashFunction(20, 64, true, true), W(84)
{
clear();
}
}
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