Jeff is right, but triple-DES is still in the DLL, which is why DES_EDE2
works.
----- Original Message -----
From: "Jeffrey Walton" <[EMAIL PROTECTED]>
To: "kumaresh" <[EMAIL PROTECTED]>
Cc: "Crypto++ Users" <[EMAIL PROTECTED]>
Sent: Friday, July 13, 2007 3:44 AM
Subject: Re: single Des encryption gives me linker errors
>
> Hi Kumaresh,
>
> The FIPS compliant Dll does not include the routine since NIST
> depricated it's use. IIRC, this includes 3DES also.
>
> Jeff
>
> On 7/13/07, kumaresh <[EMAIL PROTECTED]> wrote:
>>
>> Hello
>>
>> I am trying to perform single DES encryption using ECB mode. I have
>> attached a sample code here. This gives me a linker error.
>>
>> #include "stdafx.h"
>> #include "dll.h"
>> #include <iostream>
>> using namespace std;
>> using namespace CryptoPP;
>>
>> void singleDes()
>> {
>> const unsigned int blockSize = 8;
>>
>> unsigned char plainText[] = "Rtop34Wz";
>>
>> unsigned char key[] = "Rtop34Wz";
>>
>> unsigned char *cipherText;
>>
>> cipherText = new unsigned char [blockSize];
>>
>> unsigned char *DecText;
>>
>> DecText = new unsigned char [blockSize];
>>
>> ECB_Mode<DES>::Encryption ecbEncr;
>>
>> ECB_Mode<DES>::Decryption ecbDecr;
>>
>> ecbEncr.SetKey(key,8);
>>
>> ecbEncr.ProcessData(cipherText,plainText,blockSize);
>>
>> cout<<endl<<endl<<"Hex form of ciphertext password:- ";
>>
>> for( int i = 0; i <8; i++ )
>> {
>> std::cout << std::hex << (0xFF & static_cast<byte>(
>> cipherText[i]));
>> }
>>
>> ecbDecr.SetKey(key,8);
>>
>> ecbDecr.ProcessData(DecText,cipherText,blockSize);
>>
>> cout<<endl;
>>
>> for(int i=0; i<8;i++)
>> {
>> cout<<DecText[i];
>> }
>>
>> /*for( int i = 0; i <8; i++ )
>> {
>> cout << std::hex << (0xFF & static_cast<byte>(
>> cipherText[i]));
>> }*/
>> }
>>
>> The error during compilation is:
>>
>> Linking...
>> singleDes.obj : error LNK2001: unresolved external symbol "public:
>> virtual void __thiscall
>> CryptoPP::DES::Base::ProcessAndXorBlock(unsigned char const *,unsigned
>> char const *,unsigned char *)const " (?
>> [EMAIL PROTECTED]@[EMAIL PROTECTED]@@[EMAIL PROTECTED])
>> singleDes.obj : error LNK2001: unresolved external symbol "public:
>> virtual void __thiscall CryptoPP::DES::Base::UncheckedSetKey(unsigned
>> char const *,unsigned int,class CryptoPP::NameValuePairs const &)" (?
>> [EMAIL PROTECTED]@[EMAIL PROTECTED]@@[EMAIL PROTECTED]@@Z)
>>
>> Whereas the following code works perfectly:
>>
>> #include "stdafx.h"
>> #include "dll.h"
>> #include <iostream>
>> using namespace std;
>> using namespace CryptoPP;
>>
>> void PasswordEncrypt()
>> {
>> const unsigned int blocksize = 8;
>>
>> byte password[] = "Rtop34Wz";//{'R','t','o','p','3','4','W','z'};
>>
>> byte key[] = "Rtop34WzRtop34Wz";
>>
>> byte iv[]= "00000000";
>>
>> cout<<"Plain Text Password:- "<<password<<endl<<endl;
>> cout<<"Hex form of plain text password:- ";
>>
>> for( int i = 0; i <8; i++ )
>> {
>> std::cout << std::hex << (0xFF &
>> static_cast<byte>( password[i]));
>> }
>>
>> //declare vectors to hole encrypted and decrypted messages
>> byte *ciphertext;
>> ciphertext = new byte [blocksize];
>> byte *decryptedtext;
>> decryptedtext = new byte [blocksize];
>>
>> // cout<<endl<<DES_EDE2::BLOCKSIZE;
>>
>> //declare encryption and decryption objects
>> CBC_Mode<DES_EDE2>::Encryption cbcencr;
>> CBC_Mode<DES_EDE2>::Decryption cbcdec;
>> cbcencr.SetKeyWithIV(key,strlen((char*)key),iv);
>> cbcencr.ProcessData(ciphertext,password,DES_EDE2::BLOCKSIZE);
>>
>> cout<<endl<<endl<<"Hex form of ciphertext password:- ";
>> for( int i = 0; i <8; i++ )
>> {
>> std::cout << std::hex << (0xFF &
>> static_cast<byte>( ciphertext[i]));
>> }
>> cbcdec.SetKeyWithIV(key,strlen((char*)key),iv);
>>
>> cbcdec.ProcessData(decryptedtext,ciphertext,DES_EDE2::BLOCKSIZE);
>> cout<<endl<<endl<<"Decrypted Password:- ";
>> for(int i=0; i<8;i++)
>> {
>> cout<<decryptedtext[i];
>> }
>> // cout<<endl<<"decryptedtext"<<endl<<decryptedtext;
>> /*for( int i = 0; i <8; i++ )
>> {
>> std::cout << std::hex << (0xFF &
>> static_cast<byte>( decryptedtext[i]));
>> }
>> */
>> }
>>
>> Please suggest a solution to this problem.
>>
>> Note: I have already gone through every thing in
>> http://www.cryptopp.com/fom-serve/cache/1.html (The Crypto++ Faq-O-
>> Matic)
>>
>> -------
>> Thanks
>>
>> Kumaresh
>>
>>
>> >
>>
>
> >
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