[openssl-users] Signing an XML file

Dr. Stephen Henson steve at openssl.org
Wed Dec 14 10:28:14 UTC 2016

On Wed, Dec 14, 2016, Salz, Rich wrote:

> > Is there some equivalent to PHP's openssl_sign_pkcs7 function for C/C++ users?
> Look at the apps/pkcs7.c file as a starting point.  Get the command line doing what you want, and then work through the code to pull out only the bits you need.

Actually smime.c is the utility you want for PKCS#7. Alternatively cms.c if
you want CMS (the successor to PKCS#7).

Those though are general purpose utilities which do all sorts of things which
most appications don't care about. There are some demos in demos/smime and
demos/cms which are much simpler.

Dr Stephen N. Henson. OpenSSL project core developer.
Commercial tech support now available see: http://www.openssl.org

More information about the openssl-users mailing list