"page_evp" 3 "11 Jan 2012" "Version 1.5.2" "Heimdal crypto library" \" -*- nroff -*-
NAME
page_evp - EVP - generic crypto interface See the library functions here: EVP generic crypto functions
"EVP Cipher"

The use of EVP_CipherInit_ex() and EVP_Cipher() is pretty easy to understand forward, then EVP_CipherUpdate() and EVP_CipherFinal_ex() really needs an example to explain example_evp_cipher::c .