CMS_encrypt
CMS_ContentInfo *CMS_encrypt(STACK_OF(X509) *certs, BIO *in,
LCRYPTO_ALIAS(CMS_encrypt);
LCRYPTO_USED(CMS_encrypt);
if ((ci = CMS_encrypt(certs, bio_mem, EVP_aes_256_cbc(), 0)) == NULL) {
cms = CMS_encrypt(NULL, in, cfg.cipher,