Tim Droz,您好!

        I have test this code . but errors are :

D:\test\crypt\crypt.cpp(40) : error C2664: 
'StreamTransformationFilter::StreamTransformationFilter' : cannot convert parameter 3 
from 'const int' to 'enum CryptoPP::StreamTransformationFilter::BlockPaddingScheme'
        Conversion to enumeration type requires an explicit cast (static_cast, C-style 
cast or function-style cast)
D:\test\crypt\crypt.cpp(51) : error C2664: 
'StreamTransformationFilter::StreamTransformationFilter' : cannot convert parameter 3 
from 'const int' to 'enum CryptoPP::StreamTransformationFilter::BlockPaddingScheme'
        Conversion to enumeration type requires an explicit cast (static_cast, C-style 
cast or function-style cast)
Error executing cl.exe.
Creating browse info file...

crypt.exe - 2 error(s), 0 warning(s)


======= 2003-08-03 20:42:00 您在来信中写道:=======

>Yeah this sample is great,for a newby this kind of
>sample / documentation would be nice.
>
>I'm trying to do DUKPT simulation with crypto++ I'm
>not sure of this library and its applicability.
>Any more help would be really appreciated.
>
>
>Thanks  again David
>Tim
>
>--- "David C. Partridge" <[EMAIL PROTECTED]>
>wrote:
>> Do you mean like:
>> #include "default.h"
>> #include "des.h"
>> 
>> #include <iostream>
>> #include <time.h>
>> 
>> #include <windows.h>
>> 
>> #if (_MSC_VER >= 1000)
>> #include <crtdbg.h>          // for the debug heap
>> #endif
>> 
>> USING_NAMESPACE(CryptoPP)
>> USING_NAMESPACE(std)
>> 
>> 
>> int main()
>> {
>> // Note the for ECB, the PlainText and Cipher Text
>> MUST be an EXACT multiple
>> // of the cipher blocksize
>>         byte plaintext[48] = {'H','e','l','l','o','
>> ','W','o','r','l','d','\0'};
>>         byte * ciphertext;
>>         byte * result;
>>         byte key[DES::DEFAULT_KEYLENGTH];
>> 
>>         // initialize key and iv here
>>         memcpy(key, "12345678", sizeof(key));
>> 
>> 
>>         // encrypt
>>         ECB_Mode<DES>::Encryption ecbEncryption;
>>         ecbEncryption.SetKey(key,
>> ecbEncryption.DefaultKeyLength());
>>         StreamTransformationFilter
>> encryptor(ecbEncryption, NULL, NULL);
>>         encryptor.Put(plaintext, sizeof(plaintext));
>>         encryptor.MessageEnd();
>> 
>>         unsigned int outputLength =
>> encryptor.MaxRetrievable();
>>         ciphertext = new byte[outputLength];
>>         encryptor.Get(ciphertext, outputLength);
>> 
>>         // now decrypt
>>         ECB_Mode<DES>::Decryption ecbDecryption;
>>         ecbDecryption.SetKey(key,
>> ecbDecryption.DefaultKeyLength());
>>         StreamTransformationFilter
>> decryptor(ecbDecryption, NULL, NULL);
>>         decryptor.Put(ciphertext, outputLength);
>>         decryptor.MessageEnd();
>> 
>>         outputLength = decryptor.MaxRetrievable();
>>         result = new byte[outputLength];
>>         decryptor.Get(result, outputLength);
>> 
>>         cout << "recovered plaintext is " << result
>> << endl;
>> 
>>         delete [] ciphertext;
>>         delete [] result;
>>         return 0;
>> }
>> 
>> 
>
>
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= = = = = = = = = = = = = = = = = = = =
                        

        致
礼!
 
                                 
        forest
[EMAIL PROTECTED]
          2003-08-04

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