> As far I can see Santuario (I use version 1.7.3 with Linux/C++) does it > with MGF1P SHA1.
That's the default. > Can anyone give me short feedback, if it is possibe to get other digests > than SHA1? Yes, it's possible. It will decrypt with whatever is in the message. Producing it is possible, I don't recall all the details. There's also a separate layer of freedom with the MGF itself in the 1.1 variant of OAEP but that's less common. --Scott
