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/*
* RSA
* (C) 1999-2008 Jack Lloyd
*
* Botan is released under the Simplified BSD License (see license.txt)
*/
#ifndef BOTAN_RSA_H__
#define BOTAN_RSA_H__
#include <botan/if_algo.h>
namespace Botan {
/**
* RSA Public Key
*/
class BOTAN_DLL RSA_PublicKey : public virtual IF_Scheme_PublicKey
{
public:
std::string algo_name() const { return "RSA"; }
RSA_PublicKey(const AlgorithmIdentifier& alg_id,
const secure_vector<byte>& key_bits) :
IF_Scheme_PublicKey(alg_id, key_bits)
{}
/**
* Create a RSA_PublicKey
* @arg n the modulus
* @arg e the exponent
*/
RSA_PublicKey(const BigInt& n, const BigInt& e) :
IF_Scheme_PublicKey(n, e)
{}
protected:
RSA_PublicKey() {}
};
/**
* RSA Private Key
*/
class BOTAN_DLL RSA_PrivateKey : public RSA_PublicKey,
public IF_Scheme_PrivateKey
{
public:
bool check_key(RandomNumberGenerator& rng, bool) const;
RSA_PrivateKey(const AlgorithmIdentifier& alg_id,
const secure_vector<byte>& key_bits,
RandomNumberGenerator& rng) :
IF_Scheme_PrivateKey(rng, alg_id, key_bits) {}
/**
* Construct a private key from the specified parameters.
* @param rng a random number generator
* @param p the first prime
* @param q the second prime
* @param e the exponent
* @param d if specified, this has to be d with
* exp * d = 1 mod (p - 1, q - 1). Leave it as 0 if you wish to
* the constructor to calculate it.
* @param n if specified, this must be n = p * q. Leave it as 0
* if you wish to the constructor to calculate it.
*/
RSA_PrivateKey(RandomNumberGenerator& rng,
const BigInt& p, const BigInt& q,
const BigInt& e, const BigInt& d = 0,
const BigInt& n = 0) :
IF_Scheme_PrivateKey(rng, p, q, e, d, n) {}
/**
* Create a new private key with the specified bit length
* @param rng the random number generator to use
* @param bits the desired bit length of the private key
* @param exp the public exponent to be used
*/
RSA_PrivateKey(RandomNumberGenerator& rng,
size_t bits, size_t exp = 65537);
};
}
#endif
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