Hello,
I am working on a GUI programme for crypto++. When selecting block ciphers
dynamically (from GUI), there is a problem to choose the cipher dynamically
in code.
Here is an example:
let's do AES-CFB-Encryption
CryptoPP::CFB_Mode<CryptoPP::AES>::Encryption obj;
However, if I want to switch to Twofish-OFB-Decryption
CryptoPP::OFB_Mode<CryptoPP::Twofish>::Decryption obj;
I have to change 3 spots in this line. Unfortunately, I cannot put
CryptoPP::AES in a variable. Is there a possibility to choose the algorithm
like
CryptoPP::A<B>::C obj; with A=CBC_Mode, B=AES, C=Decryption
Or a string-based approach like Cipher("AES-CBC-Decryption")
Currently, I have a if-else tree with 6 algorithms, 5 modes,
Encrypt/Decrypt, therefore, 6x5x2=60 branches, which is annoying. Is there
a better solution?
PS.: I posted the same issue on stack overflow
https://stackoverflow.com/questions/77758291/crypto-variable-dependend-blockcipher-algorithm-and-mode
greetings from Austria
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