$500 million dollars available only for good and trusted receiver or mandate Kindly contact the sender for more information:+1 (336) 345-9681 On Friday, October 13, 2023 at 4:26:19 AM UTC+1 Jeffrey Walton wrote:
> On Thu, Oct 12, 2023 at 5:55 PM Dwight Kulkarni <[email protected]> > wrote: > > > > Hello, > > > > I had Crypto PP code that was previously working and recently stopped > working. We moved to a new version of our BSP. > > > > Error is: > > terminate called after throwing an instance of > 'CryptoPP::AlgorithmParametersBase::ParameterNotUsed' > > what(): AlgorithmParametersBase: parameter "IV" not used > > > > Error is traced to this particular function below. > > > > I had it running with the Params in ECB mode still passing in the IV. > > d.SetKey(key, key.size(),params); > > > > Then I commented it out with: > > d.SetKey(key, key.size()); > > > > Previously, it wasn't throwing an error even if IV is passed in ECB mode. > > > > Also, I don't know why it's falling through the catch statement and > kills my program. > > > > should I have a generic catch statement Exception e to prevent this ? > > > > std::string decrypt_aes(std::string cipherbytes, SecByteBlock key, > SecByteBlock iv) { > > try { > > AlgorithmParameters params = MakeParameters(Name::FeedbackSize(), > 1/*8-bits*/) > > (Name::IV(), ConstByteArrayParameter(iv)); > > //CFB_Mode<AES>::Decryption d; > > ECB_Mode<AES>::Decryption d; > > std::string recovered; > > //d.SetKey(key, key.size(),params); > > d.SetKey(key, key.size()); > > StringSource s(cipherbytes, true, new StreamTransformationFilter(d, new > StringSink(recovered), CryptoPP::BlockPaddingSchemeDef::PKCS_PADDING)); > > return recovered; > > } > > catch (CryptoPP::Exception e) { > > std::cerr << e.what() << std::endl; > > return ""; > > } > > } > > BlockPaddingSchemeDef::PKCS_PADDING is incorrect for ECB mode. ECB > mode does not use padding. The programmer is responsible for padding > to block size. > > Jeff > -- You received this message because you are subscribed to the Google Groups "Crypto++ Users" group. To unsubscribe from this group and stop receiving emails from it, send an email to [email protected]. To view this discussion on the web visit https://groups.google.com/d/msgid/cryptopp-users/d2cee403-c881-4d42-a07b-caeacc5c87ffn%40googlegroups.com.
