Hallo, has the EVP interface (sign/verify) a way to specify the padding for the signed data ? And I would like to add a way to support other padding types (something like RSA_add_padding(..., int adding, int (*fct)(unsigned char *to, int tlen, unsigned char *from,int flen)) ) By Goetz -- Goetz Babin-Ebell, TC TrustCenter GmbH, http://www.trustcenter.de Sonninstr. 24-28, 20097 Hamburg, Germany Tel.: +49-(0)40 80 80 26 -0, Fax: +49-(0)40 80 80 26 -126