Hi,
I just begin to interessing me about the cryptopp libs, and I have
some problem for using base64 strings.
So, in fact, I have to decode a text... all is already gived to me in
base64 string : the IV, the Key and the string to decode.
I have made some try with "normal" std:string, all works fine, but
I don't find how to convert properly base64 to standard string.
here is my decrypting part
-------
// Decryptor
CryptoPP::CFB_Mode< CryptoPP::AES >::Decryption
Decryptor( key2, sizeof(key2) ,iv2);
// Decryption
CryptoPP::StringSource( cipher64, true,
new CryptoPP::StreamTransformationFilter( Decryptor,
new CryptoPP::StringSink( RecoveredText )
) // StreamTransformationFilter
); // StringSource
-------
and the key, IV, and cypher that I must use are in this format (for
exemple) "QlYQo7x2MyROePWz8hchuQ==". So I must translate them before
using it in my decrypting part and I don't realy know how to do.
I don't know how to declare a base64 string...
if I create it as an std::string ... it will not be an base64 but
with the same characters...
yes ... I'm a bit lost with this base64 thing. The last time I have to
use it, I could use the system::convert in .NET.... but now I'm in
pure c++ and I can't use it.
I saw there was an " CryptoPP::Base64Decoder " but I don't know how
to use it in the correct way.
Does have someone some exemple or purpose about how to do it
correctly ?
thx for your attention
Christophe A.
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