Bizhan Gholikhamseh wrote: > Hi all, > I have an image that I need to calculate SHA256 has digest of image and > encrypt the hash digest using my private key to generate image > signature. > > Could someone please let me know how to use openssl to do this?
1) Calculate the SHA256 hash. 2) Sign it with the private key. If you want a more specific answer, you're going to have to ask a more specific question. Are you trying to write a program? Are you trying to use the 'openssl' application? Is there some specific image signing format you're trying to use? Who or what is supposed to be able to verify this signature and using what format? Your question is like "how can I use steel to build a bridge". You get the steel and you form it into a bridge with tools. DS ______________________________________________________________________ OpenSSL Project http://www.openssl.org User Support Mailing List openssl-users@openssl.org Automated List Manager majord...@openssl.org
