WinCAPICryptoKeyRSA.hpp

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/*
 * Copyright 2002-2005 The Apache Software Foundation.
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

/*
 * XSEC
 *
 * WinCAPICryptoKeyRSA := Windows implementation of RSA Keys
 *
 * Author(s): Berin Lautenbach
 *
 * $Id: WinCAPICryptoKeyRSA.hpp,v 1.11 2005/06/04 11:30:26 blautenb Exp $
 *
 */

#ifndef WINCAPICRYPTOKEYRSA_INCLUDE
#define WINCAPICRYPTOKEYRSA_INCLUDE

#include <xsec/enc/XSECCryptoKeyRSA.hpp>

#if !defined(_WIN32_WINNT)
#   define _WIN32_WINNT 0x0400
#endif

#include <wincrypt.h>

class WinCAPICryptoProvider;

class DSIG_EXPORT WinCAPICryptoKeyRSA : public XSECCryptoKeyRSA {

public :


    WinCAPICryptoKeyRSA(HCRYPTPROV prov);

    WinCAPICryptoKeyRSA(HCRYPTPROV prov, HCRYPTKEY k);

    WinCAPICryptoKeyRSA(HCRYPTPROV prov, DWORD keySpec, bool isPrivate);

    virtual ~WinCAPICryptoKeyRSA();



    virtual XSECCryptoKey::KeyType getKeyType();

    virtual const XMLCh * getProviderName() {return DSIGConstants::s_unicodeStrPROVWinCAPI;}
    
    virtual XSECCryptoKey * clone();



    virtual void setOAEPparams(unsigned char * params, unsigned int paramsLen);

    virtual unsigned int getOAEPparamsLen(void);

    virtual const unsigned char * getOAEPparams(void);

    virtual bool verifySHA1PKCS1Base64Signature(const unsigned char * hashBuf, 
                                 unsigned int hashLen,
                                 const char * base64Signature,
                                 unsigned int sigLen);

    virtual unsigned int signSHA1PKCS1Base64Signature(unsigned char * hashBuf,
                                unsigned int hashLen,
                                char * base64SignatureBuf,
                                unsigned int base64SignatureBufLen);

    virtual unsigned int privateDecrypt(const unsigned char * inBuf,
                                 unsigned char * plainBuf, 
                                 unsigned int inLength,
                                 unsigned int maxOutLength,
                                 PaddingType padding,
                                 hashMethod hm);

    virtual unsigned int publicEncrypt(const unsigned char * inBuf,
                                 unsigned char * cipherBuf, 
                                 unsigned int inLength,
                                 unsigned int maxOutLength,
                                 PaddingType padding,
                                 hashMethod hm);

    virtual unsigned int getLength(void);



    virtual void loadPublicModulusBase64BigNums(const char * b64, unsigned int len);

    virtual void loadPublicExponentBase64BigNums(const char * b64, unsigned int len);




    unsigned int getExponentBase64BigNums(char * b64, unsigned int len);

    unsigned int getModulusBase64BigNums(char * b64, unsigned int len);

    HCRYPTKEY importKey(void);


private:

    HCRYPTPROV                  m_p;
    HCRYPTKEY                   m_key;          // For a public key
    DWORD                       m_keySpec;      // For a private key

    BYTE                        * mp_modulus;
    BYTE                        * mp_exponent;

    unsigned int                m_modulusLen;
    unsigned int                m_exponentLen;

    // Instruct to import from parameters

    void loadParamsFromKey(void);

};

#endif /* WINCAPICRYPTOKEYRSA_INCLUDE */

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