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/*
* OpenSSL BN Wrapper
* (C) 1999-2007 Jack Lloyd
*
* Distributed under the terms of the Botan license
*/
#ifndef BOTAN_OPENSSL_BN_WRAP_H__
#define BOTAN_OPENSSL_BN_WRAP_H__
#include <botan/bigint.h>
#include <openssl/bn.h>
namespace Botan {
/**
* Lightweight OpenSSL BN wrapper. For internal use only.
*/
class OSSL_BN
{
public:
BigInt to_bigint() const;
void encode(byte[], size_t) const;
size_t bytes() const;
secure_vector<byte> to_bytes() const
{ return BigInt::encode_locked(to_bigint()); }
OSSL_BN& operator=(const OSSL_BN&);
OSSL_BN(const OSSL_BN&);
OSSL_BN(const BigInt& = 0);
OSSL_BN(const byte[], size_t);
~OSSL_BN();
BIGNUM* ptr() const { return m_bn; }
private:
BIGNUM* m_bn;
};
/**
* Lightweight OpenSSL BN_CTX wrapper. For internal use only.
*/
class OSSL_BN_CTX
{
public:
OSSL_BN_CTX& operator=(const OSSL_BN_CTX&);
OSSL_BN_CTX();
OSSL_BN_CTX(const OSSL_BN_CTX&);
~OSSL_BN_CTX();
BN_CTX* ptr() const { return m_ctx; }
private:
BN_CTX* m_ctx;
};
}
#endif
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