Developer Guide for Intel® Integrated Performance Primitives Cryptography 2019
The <install_dir>/documentation/en/ippcp directory, set up during installation, includes a lot of helpful documentation related to Intel® IPP Cryptography. See the get_started.htm file for a listing of all the available documents with links or pointers to their locations.
The Intel IPP forum and knowledge base can be useful locations to search for questions not answered by the documents above. Please see: http://software.intel.com/en-us/forums/intel-integrated-performance-primitives/ .