for the followup on this post see this post at: http://groups.google.com/group/cryptopp-users/browse_thread/thread/d784da6766ff70e6
btw the certificate is from an online example ;) Thanks vadim On Dec 2, 11:19 pm, Vadym Fedyukovych <[email protected]> wrote: > On Mon, Nov 30, 2009 at 10:14:43AM -0800, adfm wrote: > > Hello all, > > > my problem: > > 1. I have been given a certificate in a pfx form that contains the > > private key I must use to decode a message. > > pfx is likely a PKCS-12 defined by RSA Labs > > a private key and a cerificate are likely there in the PKCS-12 structure > > "openssl pkcs12 -in yourfule" might be useful to see exactly what is there > > please remember not to post a production private key to the list > > > 2. I opened up the certificate and saved the private key data to > > a .pem file. > > 3. The certificate is in the form: > > > -----BEGIN CERTIFICATE----- > > MIICuzCCAiSgAwIBAgIJAMLZ1aXsvPdqMA0GCSqGSIb3DQEBBQUAMGkxCzAJBgNV > > (...) > > /9kfj2B6h78n9yXo339Xa8i/+3xJQMApR5yXW0IkEg== > > -----END CERTIFICATE----- > > > I went through the examples and found the cool function > > string RSADecryptString(const char *privFilename, const char > > *ciphertext) > > I tried to use it, but I am getting a "BER decode error". > > > { > > string b64decoded; > > > //decode file from bsae 64 > > StringSource( privFilename, true, > > new CryptoPP::Base64Decoder( > > new CryptoPP::StringSink( b64decoded ) > > ) // Base64Encoder > > ); // StringSource > > > //Set up the decryptor > > StringSource priv_key(b64decoded, true, new HexDecoder); > > RSAES_OAEP_SHA_Decryptor priv(priv_key); > > > //to replace GlobalRNG that I haver no idea where it is! > > AutoSeededRandomPool rng; > > > string result; > > StringSource(ciphertext, true, new HexDecoder(new > > PK_DecryptorFilter(rng, priv, new StringSink(result)))); > > > return result; > > } > > > Sorry for the dumb question, but I'm learning about cryptography as I > > go and my time is running short for going through the cryptoPP API's > > thoroughly. > > > I hope that someone can help me out. > > > Thanks in advance! > > > Cheers > > > -- > > You received this message because you are subscribed to the "Crypto++ > > Users" Google Group. > > To unsubscribe, send an email to > > [email protected]. > > More information about Crypto++ and this group is available > > athttp://www.cryptopp.com. -- You received this message because you are subscribed to the "Crypto++ Users" Google Group. To unsubscribe, send an email to [email protected]. More information about Crypto++ and this group is available at http://www.cryptopp.com.
