My wonder is just as the title. At present , I'm using MD5 and RSA to make signatures. My data will be very large, so I'm wondering about the max of data that can be signed. Does the length vary with different digest algorithms? what are they ,then? I have looked up some books, but couldn't get a clear answer. Please lend me a hand. Thanks . Hazel ______________________________________________ Miss Yuhang Gao CERNET Regional Network Center, Dept. of Computer Sci. & Eng. Southeast University, Nanjing 210096, P.R.China Tel: +86-25-3794342 ext 211 Fax: +86-25-3614842 ______________________________________________________________________ OpenSSL Project http://www.openssl.org User Support Mailing List [EMAIL PROTECTED] Automated List Manager [EMAIL PROTECTED]