Man pages matching name cms_get0_recipientinfos in section 3ssl:

CMS_get0_RecipientInfos.3ssl.en	debian 10 / libssl-doc
CMS_get0_RecipientInfos.3ssl.en	debian 11 / libssl-doc
CMS_get0_RecipientInfos.3ssl.en	debian 12 / libssl-doc