Hello, We could figure it out that we were using NO_PADDING on the encryption side using Bouncy Castle. Sorry for the confusion earlier. And as we were using PKCS1 padding on crypto++, it is failing.
But I couldn't figure out how to create a Decryptor object for NO_PADDING scheme in crypto++. Can someone please help me with this ? Thanks in advance. Regards Mehul -----Original Message----- From: Jos� Manuel Romero Ximil [mailto:[EMAIL PROTECTED] Sent: Friday, February 25, 2005 7:43 PM To: '[email protected]' Subject: RE: Crypto++ - Bouncy Castle interoperability first decode base64 and then decrypt Manuel -----Original Message----- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] Behalf Of J Mehta, Mehul Sent: Friday, February 25, 2005 2:46 AM To: [email protected] Subject: RE: Crypto++ - Bouncy Castle interoperability Hello, We are using the PKCS#1 padding scheme on both the sides. The strange thing is, if we encrypt the data with crypto++, it can be decrypted with Bouncy Castle library, but the reverse doesn't happen. The following is the code using crypto++ to decrypt the data, which is encrypted using Bouncy Castle library. The data gets Base64 encoded before getting sent. ========= FileSource privFile(privFilename, true, new TransparentFilter); RSAES<PKCS1v15>::Decryptor priv(privFile); string result; StringSource(ciphertext, true, new Base64Decoder(new PK_DecryptorFilter(GlobalRNG(), priv, new StringSink(result)))); ========= Is there anything which needs to be done differently ? Regards Mehul -----Original Message----- From: Jos� Manuel Romero Ximil [mailto:[EMAIL PROTECTED] Sent: Thursday, February 24, 2005 8:09 PM To: '[email protected]' Subject: RE: Crypto++ - Bouncy Castle interoperability I think you need to specify the same padding. Manuel -----Original Message----- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] Behalf Of J Mehta, Mehul Sent: Thursday, February 24, 2005 8:20 AM To: [email protected] Subject: Crypto++ - Bouncy Castle interoperability Hello, We are using Bouncy Castle library to RSA encrypt a message. But when we try to decrypt using crypto++, it throws us 'Bad Ciphertext' error. We are using PKCS1V15 scheme to do the same. While trying the other way, we are able to decrypt the message, but it contains junk also with the actual message. Are there some known incompatibility issues with these two libraries ? Or is there something we need to pay attention to ? Thanks in advance. Regards Mehul
