On 30/10/13 20:25, Philipp Klaus Krause wrote: > If we have plenty of randomness available, we could do this a different > way: XOR the message M with a random one-time pad P to obtain N. Encrypt P > with A, and N with B.
Why are you inventing new crypto primitives? Symmetric crypto is already good enough. But to immediately debunk this system: there is a strong correlation between P and N (i.e., the plaintext). This means you are encrypting strongly correlated material with two different ciphers. If you can somehow make them meet in the middle, you no longer have to completely break one of the ciphers completely but instead break both partially, which might be orders easier to do. HTH, Peter. -- I use the GNU Privacy Guard (GnuPG) in combination with Enigmail. You can send me encrypted mail if you want some privacy. My key is available at <http://digitalbrains.com/2012/openpgp-key-peter> _______________________________________________ Gnupg-users mailing list Gnupg-users@gnupg.org http://lists.gnupg.org/mailman/listinfo/gnupg-users
