Hi Herbert, Tadeusz, I looked a bit further into the akcipher code to see how we can add an AF_ALG there. What currently wonders me is the akcipher_request_set_crypt function: the memory for input/output buffers is *no* scatter list but a plain buffer. I think I can understand that for raw RSA operations as the input/output is not overly large. But according to Tadeusz it may be viable to register hybrid asym ciphers with the akcipher API. If there is a full blown hybrid asym cipher we have to handle potentially large chunks of data. I am now wondering whether a flat buffer still makes sense or whether the akcipher should be converted to scatter lists as all the other cipher types. If it shall stay as is, how would we be handling larger buffers? Thanks Stephan -- To unsubscribe from this list: send the line "unsubscribe linux-crypto" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html