windows-nt/Source/XPSP1/NT/ds/security/csps/cryptoflex/slbcsp/hashsha1.cpp

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// HashSHA1.cpp -- definition of CHashSHA1
// (c) Copyright Schlumberger Technology Corp., unpublished work, created
// 1998. This computer program includes Confidential, Proprietary
// Information and is a Trade Secret of Schlumberger Technology Corp. All
// use, disclosure, and/or reproduction is prohibited unless authorized
// in writing. All Rights Reserved.
#include "stdafx.h" // because handles.h uses the ASSERT macro
#include <memory> // for auto_ptr
#include "HashSHA1.h"
using namespace std;
/////////////////////////// LOCAL/HELPER /////////////////////////////////
/////////////////////////// PUBLIC /////////////////////////////////
// Types
// C'tors/D'tors
CHashSHA1::CHashSHA1(CryptContext const &rcryptctx)
: CHashContext(rcryptctx, CALG_SHA)
{}
CHashSHA1::~CHashSHA1() throw()
{}
// Operators
// Operations
auto_ptr<CHashContext>
CHashSHA1::Clone(DWORD const *pdwReserved,
DWORD dwFlags) const
{
return auto_ptr<CHashContext>(new CHashSHA1(*this, pdwReserved,
dwFlags));
}
// Access
// Predicates
// Static Variables
/////////////////////////// PROTECTED /////////////////////////////////
// C'tors/D'tors
// Duplicate the hash and its state
CHashSHA1::CHashSHA1(CHashSHA1 const &rhs,
DWORD const *pdwReserved,
DWORD dwFlags)
: CHashContext(rhs, pdwReserved, dwFlags)
{}
// Operators
// Operations
// Access
Blob
CHashSHA1::EncodedAlgorithmOid()
{
// SHA1 Algorithm Object IDentifier (OID) in ASN.1 format (little endian)
static unsigned char const sSha1AlgOid[] =
{
'\x30', '\x21', '\x30', '\x09', '\x06',
'\x05', '\x2b', '\x0e', '\x03', '\x02',
'\x1a', '\x05', '\x00', '\x04', '\x14'
};
return Blob(sSha1AlgOid, sizeof sSha1AlgOid / sizeof *sSha1AlgOid);
}
// Predicates
// Static Variables
/////////////////////////// PRIVATE /////////////////////////////////
// C'tors/D'tors
// Operators
// Operations
// Access
// Predicates
// Static Variables