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+/*
+* RSA
+* (C) 1999-2008 Jack Lloyd
+*
+* Distributed under the terms of the Botan license
+*/
+
+#ifndef BOTAN_RSA_H__
+#define BOTAN_RSA_H__
+
+#include <botan/if_algo.h>
+
+namespace Botan {
+
+/**
+* RSA Public Key
+*/
+class BOTAN_DLL RSA_PublicKey : public PK_Encrypting_Key,
+ public PK_Verifying_with_MR_Key,
+ public virtual IF_Scheme_PublicKey
+ {
+ public:
+ std::string algo_name() const { return "RSA"; }
+
+ SecureVector<byte> encrypt(const byte[], u32bit,
+ RandomNumberGenerator& rng) const;
+
+ SecureVector<byte> verify(const byte[], u32bit) const;
+
+ RSA_PublicKey() {}
+ RSA_PublicKey(const BigInt&, const BigInt&);
+ protected:
+ BigInt public_op(const BigInt&) const;
+ };
+
+/**
+* RSA Private Key class.
+*/
+class BOTAN_DLL RSA_PrivateKey : public RSA_PublicKey,
+ public PK_Decrypting_Key,
+ public PK_Signing_Key,
+ public IF_Scheme_PrivateKey
+ {
+ public:
+ SecureVector<byte> sign(const byte[], u32bit,
+ RandomNumberGenerator&) const;
+
+ SecureVector<byte> decrypt(const byte[], u32bit) const;
+
+ bool check_key(RandomNumberGenerator& rng, bool) const;
+
+ /**
+ * Default constructor, does not set any internal values. Use this
+ * constructor if you wish to decode a DER or PEM encoded key.
+ */
+ RSA_PrivateKey() {}
+
+ /**
+ * Construct a private key from the specified parameters.
+ * @param rng the random number generator to use
+ * @param prime1 the first prime
+ * @param prime2 the second prime
+ * @param exp the exponent
+ * @param d_exp 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);
+
+ /**
+ * 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,
+ u32bit bits, u32bit exp = 65537);
+ private:
+ BigInt private_op(const byte[], u32bit) const;
+ };
+
+}
+
+#endif