SOL9 Sample: RSAExchangeKey

SOL9 2.0 Samples

1 Screenshot


2 Source code

/*
 * RSAExchangeKey.cpp 
 * Copyright (c) 2015 Antillia.com TOSHIYUKI ARAI. ALL RIGHTS RESERVED. 
 */


// 2009/03/05

#include <sol/crypt/RSACryptServiceProvider.h>
#include <sol/crypt/RSAExchangeKey.h>


void cryptError() 
{ 
  _tprintf(_T("%s\n"), CryptError::getMessage(GetLastError()) );
  exit(1);
}



void _tmain(int argc, TCHAR** argv)
{
  try {

    RSACryptServiceProvider csp;
    {
      printf("RSAExchangeKey:\n");

      RSAExchangeKey exchangeKey(csp);

      const size_t size = 64;
      size_t dsize = size;

      const size_t bsize = size+ 128;
      unsigned char buffer[bsize];
      memset(buffer, 0, sizeof(buffer));
      strcpy_s((char*)buffer, SizeOf(buffer), "This is a sample text. Hello world!");

      printf("\n1. Try to encrypt by exchangeKey SIZE=%d DATA=[%s]\n", dsize, (char*)buffer);    
      if (exchangeKey.encrypt(buffer, &dsize, bsize, TRUE) == NO_ERROR) {
        printf("2. OK exchangKey.encrypt\n");
        Bytes enc(buffer, dsize);
        enc.dump();
      } else {
        cryptError();
      }
      printf("\n3. Try to decrypt by exchangeKey SIZE=%d \n", dsize);
      if (exchangeKey.decrypt(buffer, &dsize, TRUE) == NO_ERROR) {
        printf("4. OK exchangeKey.decrypt\n");
        printf("SIZE=%d DATA=[%s]\n", dsize, (char*)buffer);    
      } else {
        cryptError();
      } 
      printf("\n5. Try to get(export) publicKey from exchangeKey\n"); 
      Bytes pubKey;
      if (exchangeKey.getPublicKey(pubKey) == NO_ERROR) {
        printf("6. OK, exchangeKey.getPublicKey:");
        pubKey.dump();
      } else {
        cryptError();
      }

      printf("\n7. Try to export privateKey from exchangeKey\n"); 
      Bytes priKey;
      if (exchangeKey.getPrivateKey(priKey) == NO_ERROR) {
        printf("8. OK, getPrivateKey from an exchangeKey");
        priKey.dump();
      } else {
        cryptError();
      }

      printf("\n9. Try to import publicKey from exported publicKey data\n"); 
      CryptKey impPublicKey;
      if (impPublicKey.importKey(csp.getProviderHandle(), 
        pubKey.getData(), pubKey.getSize()) == NO_ERROR) {
        printf("10. OK, impoorted a publickKey\n");
      } else {
        cryptError();
      }

      printf("\n11. Try to import privateKey from exported privateKey data\n"); 
      CryptKey impPrivateKey;
      if (impPrivateKey.importKey(csp.getProviderHandle(), 
        priKey.getData(), priKey.getSize()) == NO_ERROR) {
        printf("12. OK, imported a privateKey\n");
      } else {
        cryptError();
      }

      // Encrypt data by ImportedPublicKey and decrypt it   by ImportedPrivateKey
      memset(buffer, 0, sizeof(buffer));      
      strcpy_s((char*)buffer, SizeOf(buffer), "Encrypt by importedPublicKey and decrypt by importedPrivateKey!");

      printf("\n13. Try to encrypt by imported PublicKey SIZE=%d DATA=[%s]\n", dsize, (char*)buffer);    
      if (impPublicKey.encrypt(buffer, &dsize, bsize, TRUE) == NO_ERROR) {
        printf("14. OK, encrypted by importedPublicKey\n");
        Bytes enc(buffer, dsize);
        enc.dump();
      } else {
        cryptError();
      }
      printf("\n15. Try to decrypt by imported PrivateKey SIZE=%d\n", dsize);//, (char*)buffer);    

      if (impPrivateKey.decrypt(buffer, &dsize, TRUE) == NO_ERROR) {
        printf("16. OK, SIZE=%d DATA=[%s]\n", dsize, (char*)buffer);    
      } else {
        cryptError();
      }

      // Encrypt data by ImportedPrivateKey and decrypt it   by ImportedPublicKey
      memset(buffer, 0, sizeof(buffer));
      strcpy_s((char*)buffer, SizeOf(buffer), "Encrypt by importedPrivateKey and decrypt by importedPublicKey!");
      
      printf("\n17. Try to encrypt by imported PrivateKey SIZE=%d DATA=[%s]\n", dsize, (char*)buffer);    
      if (impPrivateKey.encrypt(buffer, &dsize, bsize, TRUE) == NO_ERROR) {
        printf("18. OK, encrypted by importedPrivateKey\n");
        Bytes enc(buffer, dsize);
        enc.dump();
      } else {
        cryptError();
      }

      printf("\n19. Try to decrypt by importedPublicKey SIZE=%d\n", dsize);//, (char*)buffer);    

      if (impPublicKey.decrypt(buffer, &dsize, TRUE) == NO_ERROR) {
        printf("20. OK, SIZE=%d DATA=[%s]\n", dsize, (char*)buffer);    
      } else {
        cryptError();
      }
    }
  } catch (Exception& ex) {
    printf("Exception = %s\n", ex.getErrorMessage());
  }
}

Last modified: 2 May 2016

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